Curriculum Vitae of Prof Eddie Mathews

1. General information

Title, name and surname: Prof Edward Henry Mathews

Date of birth: 12 April 1957

Citizenship: RSA

Professional registrations: ECSA

2. Contact details

Organisation where based: North-West University (NWU)

Faculty or School: Mechanical Engineering

Work telephone number: 012-809 0995

Work fax number: 086 515 5799

Cell phone number:

E-mail address: ehmathews@researchtoolbox.com

Website address: http://www.nwu.ac.za

Work postal address: Suite No. 89 Private Bag X30 Lynnwood Ridge 0040

Work physical address: Von Backstrom Boulevard Silver Lakes Office Park No. 2 Block D Silver Lakes, Pretoria

3. Qualifications

Qualification type: PhD

Field of study: Mechanical Engineer

Institution: North-West University (PU for CHE)

Year obtained: 1985

Qualification type: M.Eng

Field of study: Aeronautical Engineer

Institution: University of Stellenbosch

Year obtained: 1983

Qualification type: B.Eng Hons.

Field of study: Aeronautical Engineer

Institution: University of Stellenbosch

Year obtained: 1981

4. Employment history

Position: Organisation Appointed from – to:

Snr Lecturer University of Pretoria Jul 1985 – Dec 1985

Asst Professor University of Pretoria Jan 1986 – Dec 1988

Professor University of Pretoria Jan 1989 – Nov 2000

Professor North West University Dec 2000 - Present

5. Research expertise

Scientific domain: Energy Efficiency

Main research field: Energy efficiency

Fields of specialization: Energy efficiency

NRF rating and year rated: None

6. Publications

International publications: * MATHEWS, E.H., Thermal analysis of naturally ventilated buildings, Building and Environment, Vol. 21, pp. 35-39, (1986). * MATHEWS, E.H., Two-dimensional, steady-state temperature distribution in corners of arbitrary shape, Building and Environment, Vol. 21, No. 3/4, pp. 183-188 (1986). * MATHEWS, E.H., Prediction of wind-generated pressure distribution around buildings. J. Wind. Eng. Ind. Aerodyn., Vol. 25, No. 2, pp. 219-228 (1987). * MATHEWS, E.H. and MEYER, J.P., Numerical modelling of wind loading on a film clad greenhouse. Building and Environment, Vol. 22, No. 2, pp. 129-134 (1987). * MEYER, J.P and MATHEWS, E.H., A transformed Laplace equation for the numerical solution of various mechanical engineering problems. International Journal of Mechanical Engineering Education., Vol. 15, No.1, pp. 41-50 (1987). * MATHEWS, E.H., A windtunnel model to demonstrate the principles of flutter, International Journal of Mechanical Education., Vol 15, No.2, pp. 99-110 (1987). * MATHEWS, E.H. and MEYER, J.P., Computation of Wind Loads on a Semicircular Greenhouse, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 29, pp. 225-233 (1988). * MATHEWS, E.H., CROSBY, C.P., VISSER, J.A. and MEYER, J.P., Numerical prediction of wind loads on buildings, Journal of Wind Engineering and Industrial Aerodynamics, Vol. 31, pp. 241-250 (1988). * VISSER, J.A. and MATHEWS, E.H., Numerical modelling of the heat transfer in and around a steel bar during hot rolling, Invited paper, Special issue on recent advances in numerical methods for thermal problems in Communications in Applied Numerical Methods, Vol. 4, pp. 657-664 (1988). * MEYER, J.P., MATHEWS, E.H., and VAN ZYL, G.P., Numerical calculation of profiles corresponding to given pressure distributions, Communications in Applied Numerical Methods, Vol. 4, pp. 767-772 (1988). * MATHEWS, E.H., Empiricism in the thermal analysis of naturally ventilated buildings, Building and Environment, Vol. 23, No. 1, pp. 57-61 (1988). * MATHEWS, E.H., Editorial, Numerical solution of fluid problems related to buildings, structures and the environment, Special Issue of Building and Environment, Vol. 24, No. 1, p1 (1989).

* MATHEWS, E.H. and JOUBERT, P.H., Quicktemp - a thermal analysis program for designers of naturally ventilated buildings, Building and Environment, Vol. 24, No. 2, pp. 155-162 (1989). * MATHEWS, E.H. and RICHARDS, P.G., A Tool for Predicting Hourly Air Temperatures and Sensible Energy loads in Buildings at Sketch Design Stage, Energy and Building, Vol. 14, pp. 61-80 (1989). * CROSBY, C.P., MATHEWS, E.H. and DU PLESSIS, J.P., The numerical prediction of air flow through and around permeable windbreaks and buildings. Invited paper, Special Issue on recent advances in numerical methods, Journal of Wind Engineering and Industrial Aerodynamics Vol. 35, pp. 213-224 (1990). * MATHEWS, E.H., ROUSSEAU, P.G., RICHARDS, P.G. and LOMBARD, C., A Procedure to Estimate the Effective Heat Storage Capability of a Building, Building and Environment, Vol. 26, No. 2, pp. 179-188 (1991). * LOMBARD, C. and MATHEWS, E.H., Efficient, Steady State Solution of a Time Variable RC Network, for Building Thermal Analysis, Building and Environment, Vol. 27, No. 3, pp. 279-287 (1992). * LOMBARD, C. and MATHEWS, E.H., An efficient procedure for finding the steady state solution of cyclic, linear, discrete systems, International Journal for Heat and Fluid Flow, Vol. 2, No. 1, pp. 87-93 (1992). * MATHEWS, E.H., ETZION, Y., ERELL, E., RICHARDS, P.G. and ROUSSEAU P.G., Simplified Analysis of Naturally Ventilated Desert Buildings, Building and Environment, Vol. 27, No. 4, pp. 423-432 (1992). * KRUGER, W. and MATHEWS, E.H., Norms to establish the most elementary environmental control system which ensures summer thermal comfort in office buildings, Building and Environment, Vol. 27, No. 1, pp. 51-55 (1992). * MATHEWS, E.H. and RICHARDS, P.G., "An efficient tool for future building design", Building and Environment, Vol. 28, No. 4, pp. 409-417 (1993). * ROUSSEAU, P.G. and MATHEWS, E.H., "Needs and trends in building and HVAC thermal design tools", Building and Environment, Vol. 28, No. 4, pp. 439-452 (1993). * MATHEWS, E.H., "Trends and opportunities in the simulation of building thermal performance and HVAC-systems", Building and Environment, Vol. 28, No. 4, p. 381 (1993). * MATHEWS, E.H., KLEINGELD, M. and GROBLER, L.J., "Integrated simulation of buildings and evaporative cooling systems", Building and Environment, Vol. 29, No. 2, pp. 197-206 (1994). * MATHEWS, E.H., RICHARDS, P.G. and LOMBARD, C., "A first order thermal model for building design", Energy and Buildings, Vol. 21, pp. 133-145 (1994). * RICHARDS, P.G., and MATHEWS, E.H., "A thermal design tool for buildings in ground contact", Building and Environment, Vol. 29, No. 1, pp. 73-82 (1994). * ROUSSEAU, P.G., MATHEWS, E.H. and GROBLER, L.J., "Integrated thermal simulation of buildings and regenerative evaporative coolers", Building and Environment, Vol 29, No. 1, pp. 33-42 (1994). * MATHEWS, E.H., SHUTTLEWORTH, A.G. and ROUSSEAU, P.G., "Validation and further development of a novel thermal analysis method", Building and Environment, Vol 29, No. 2, pp. 207-215 (1994). * MATHEWS, E.H. and ROUSSEAU, P.G., "A new integrated design tool for naturally ventilated buildings, part 1: Ventilation model", Building and

Environment, Vol. 29, No. 4, pp. 461-471 (1994). * ROUSSEAU, P.G. and MATHEWS, E.H., "A new integrated design tool for naturally ventilated buildings, part 2: Integration and application", Building and Environment, Vol. 29, No. 4, pp. 473-484 (1994). * MATHEWS, E.H. and KöHLER, P.A., "A numerical optimization procedure for complex pipe and duct network design", International Journal of Numerical Methods for Heat and Fluid Flow, Vol. 5, No. 5, pp. 445-457 (1995). * MATHEWS E.H., "Christopher Barrie Wilson : A man of Many Qualities", Building and Environment, Vol. 30, No. 2, pp. 155-156 (1995). * MATHEWS, E.H., RICHARDS,P.G.,VAN WYK, S.L. and ROUSSEAU, P.G., "Energy efficiency of ultra-low cost housing", Building and Environment, Vol. 30, No. 3, pp. 427-432 (1995). * ROUSSEAU P.G. and MATHEWS E.H., "A new integrated design tool for naturally ventilated buildings", Invited paper for special issue of Energy and Buildings, Vol. 23, No. 3, pp. 231-236 (1996). * MATHEWS, E.H. and VAN WYK, S.L., "Energy efficiency of formal low-cost housing in South Africa's Gauteng region" Energy and Building, Vol. 24, No. 2, pp. 117-123 (1996). * MATHEWS, E.H., ETZION, Y., VAN HEERDEN, E., WEGGELAAR, S., ERELL, E., PERLEMUTTER, D. and MEIR, I.A., "A Novel Thermal Simulation Model and its Application on Natural Ventilated Desert Buildings, Building and Environment, Vol. 32, No. 5, pp. 447-456, 1997. * MATHEWS, E.H. and CLAASSEN, D.T. “Problems with the T-Method” Building and Environment, Vol. 33, No. 4, pp. 173-179, (1998). * MATHEWS, E.H. and CLAASSEN, D.T. “Problems with the Static Regain Method” Building and Environment, Vol. 34, No. 4, pp. 391-400 (1999). * MATHEWS, E.H. VAN HEERDEN, E. and ARNDT, D.C., “ A Tool for Integrated HVAC, Building, Energy and Control Analysis : Part 1 : Overview of QUICKcontrol” Building and Environment, Vol. 34, No. 5, pp. 429-449 (1999). * MATHEWS, E.H. VAN HEERDEN, E. and ARNDT, D.C., “ A Tool for Integrated HVAC, Building, Energy and Control Analysis : Part 2 : Control Simulations with QUICKcontrol” Building and Environment, Vol. 34, No. 5, pp. 451-467 (1999). * LOMBARD, C. and MATHEWS, E.H., "A Two-Port Envelope Model for Building Heat Transfer" Building and Environment, Vol. 34, No. 1, pp. 19-30 (1999). * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P., " Estimating the Electricity Savings Effect of Ceiling Insulation, Building and Environment, Vol. 34, No. 2, pp. 505-514 (1999). * MATHEWS, E.H., WEGGELAAR, S. and VAN WYK, S.L., “The development and testing of low-cost insulation for shacks”, Energy and Buildings, Vol. 29, pp. 307-313 (1999). * LOMBARD, C., MATHEWS, E.H. and K+LEINGELD, M., “Demand-Side Management through thermal efficiency in South African houses” Energy and Buildings, Vol. 29, pp.229-239 (1999). * TAYLOR, P.B., MATHEWS, E.H. , KLEINGELD, M. and TALJAARD, G.W., "The effect of ceiling insulation on indoor comfort”, Building and Environment, Vol. 35, No. 4, pp339-346, May (2000). * MATHEWS, E.H. ARNDT, D., PIANI, C.B., VAN HEERDEN, E., “Developing cost efficient control strategies to ensure optimal energy use and sufficient indoor comfort”, Applied Energy, Vol. 66/2, pp 135-

159, (2000). * ELLIS, M.W. and MATHEWS, E.H., "A New Simplified Thermal Design Tool for Architects" Building and Environment, Vol. 36, No. 9, pp. 1009-1021, November (2001). * MATHEWS, E.H., BOTHA, C.P., ARNDT, D.C. and MALAN A., “HVAC control strategies to enhance comfort and minimise energy usage”, Energy and Buildings, Vol. 33, No. 8, pp. 853-863, (2001). * MATHEWS, E.H., TAYLOR, P.B., KLEINGELD, M., GEYSER, F., “Defining A New Condensation Boundary for Low-Cost Houses in South Africa”, Building and Environment, Vol. 38, No. 12, pp. 1475-1484, (2003). * MATHEWS, E.H., ARNDT, D. and GEYSER, M.F., “Reducing the energy consumption of a conference centre – a case study using software”, Building and Environment, Vol. 37, No. 4, pp. 437-444 (2002).

* ELLIS, M.W., MATHEWS, E.H., “Needs and Trends In Building and HVAC System Design Tools”, Building and Environment, Vol. 37, No. 5, pp. 461-470, May (2002). * MATHEWS, E.H. and ARNDT, D. “Validation of models to predict the thermal and ventilation performance of horse stables”, Building and Environment, Vol.38, No. 2, pp. 237-246 (2003) * MATHEWS, E.H. and CLAASSEN, D.T., “A new duct design software tool”, Building and Environment, Vol. 38, No. 4, pp. 521-531, (2003). * MATHEWS, E.H. and BOTHA, C., “Improved thermal building management with the aid of integrated dynamic HVAC simulation”, Building and Environment, Vol. 38, No. 12, pp. 1423-1429 (2003). * BUYS, J.H., MATHEWS, E.H., “Investigation into capital costs of HVAC systems”, Building and Environment, Vol. 40, No. 9, pp. 1153-1163, (September 2005). * NIEUWOUDT, M.N., MATHEWS, E.H., “A mobile solar water heater for rural housing in Southern Africa, Building and Environment, Vol. 40, No 9, pp. 1217 –1234, (September 2005). * FULS, W.F., VILJOEN, C., STOKER, C.; KOCH, C., MATHEWS, E.H., The Interim Fuel Storage Facility of the PBMR, Annals of Nuclear Energy, Vol. 32, No. 17, pp. 1854 - 1866, (November 2005) * VAN ROOYEN, W.J., KRUEGER, D.L.W., MATHEWS, E.H., KLEINGELD, M., “Simulation and Optimisation of Gas Storage Tanks filled with Capacitance”, Nuclear Engineering and Design, NED4313 Vol. 236, Issue 2, pp. 156 – 163, January 2006. * HAARHOFF, J., MATHEWS, E.H., “A Monte Carlo Method for thermal building simulation”, Energy and Buildings, Vol. 38, pp. 1395-1399, Sept 2006. * MATIMBA, T.A.D., KRUEGER, D.L.W., MATHEWS, E.H., “A Multi-tank storage facility to effect power control in the PBMR Power Cycle”, Nuclear Engineering and Design, Vol. 237, Issue 2, pp. 153-160, January 2007. * FULS, W.F., MATHEWS, E.H., PELZER, R., “Passive Cooling of the PBMR Spent and Used Fuel Tanks” Nuclear Engineering and Design Journal, No. 237, pp. 1354-1362, June 2007. * PELZER, R., MATHEWS, E.H., LE ROUX, D.F., KLEINGELD, M., “A new approach to ensure successful implementation of sustainable demand side management (DSM) in South African mines”, Journal of Energy, Vol. 33, No. 8, pp. 1254-1263, August 2008. * DE BEER, MATHEWS, E.H., KRUEGER, D., MAREE, J., MBHELE, N.,

PHALANNDWA, M., NOVHE, O., „Limestone Neutralisation of Arsenic rich effluent from a Gold Mine“, Mine Water and the Environment, Issue 27, No. 1, March 2008. * MATHEWS, E.H., PELZER, R., “A new model to estimate bolus insulin need” Diabetes Technology and Therapeutics, Vol. 11, No. 12 , pp. 813-817, (November 2009).

National publications: * MATHEWS, E.H., Simplified measuring technique to estimate the thermal performance of non-airconditioned buildings, S.A. Mechanical Engineer, Vol. 36, No. 6, pp. 210-206 (1986). * MATHEWS, E.H., Analysis of vibration by a modal coupling technique, R & D Journal, Vol. 3, No. 1, pp. 26-30 (1987). * ROUSSEAU, P.G., MATHEWS, E.H., DU PLESSIS, J.P., VISSER, J.A., CROSBY, C.P. and RICHARDS, P.G., Use of Numerical Techniques to Solve Fluid Flow, Heat Transfer and Combustion Problems, SA Mechanical Engineer, Vol. 39, No. 3, pp. 117-123 (1989). * ROUSSEAU, P.G. and MATHEWS, E.H., Numerical simulation of inviscid transonic flow over slender axisymmetric bodies, Aeronautica Meridiana, Vol. 8, pp. 103-107 (1990). * MATHEWS, E.H. and KRUGER, W., A new approach to thermal efficiency norms for buildings, S.A. Refrigeration and Airconditioning, Vol. 6, No. 6, pp. 46-51 November (1990). * HUYSSEN, R.J., CROSBY, C.P. and MATHEWS, E.H., The development of a high performance composite hang-glider, Aeronautica Meridiana, Vol. 9, pp. 71-77 (1991). * MATHEWS, E.H., VAN DER WALT, N.W. and MEYER, J.P., A numerical design procedure for sub-sonic nozzles, Aeronautica Meridiana, Vol. 9, pp. 79-89 (1991). * THIART, C.J.H., VAN ZYL, G.P., RONANDER, E. and MATHEWS, E.H., Modelling of constricted flow cooling nozzles for vibrational cooling, R & D Journal, Vol. 9, No. 2, pp. 31-36 (1993). * MATHEWS, E.H., BRENKMAN H.F. and KöHLER, P.A.J., "Optimization of pipe networks using standardized pipes, R & D Journal, Vol. 10 No. 2, pp. 45-51 (1994). * ROUSSEAU, P.G. and MATHEWS, E.H., "Evaluation of system design and energy efficiency through simulation - A case study", S.A. Refrigeration and Airconditioning, pp. 39- 51 (1995). * KLEINGELD, M., MATHEWS, E.H., FULS, W.F. and SHUTTLEWORTH, A.G., "Energy and monetary savings for developed households in South Africa", Journal of Energy in Southern Africa, Vol. 6, No. 3, pp. 151-155 (1995). * MATHEWS, E.H., RICHARDS, P.G., ROUSSEAU, P.G., CROSBY, C.P. and VAN WYK, S.L., "From energy-efficient buildings to novel aircraft," Invited paper for South African Journal of Science, Vol. 91, No. 11/12, pp. 560-561 (1995). * ROUSSEAU P.G., MATHEWS E.H. and MALAN A.G., "Verification and application of a new component-based simulation technique for HVAC systems", R & D Journal, Vol 12, No. 1, pp. 1-12 (1996). * GROBLER, L.J., MATHEWS, E.H. and ROUSSEAU, P.G. "A new holistic approach to retrofitting to ensure good indoor air quality and maximum energy efficiency", Refrigeration and Airconditioning, Vol. 12, No. 4, pp. 45-53, July (1996). * MATHEWS, E.H. and PIANI, C.B., "Establishing the energy savings

potential in South African office buildings", Refrigeration and Airconditioning, Vol. 12, No. 4, pp. 59-65, July (1996). * MATHEWS, E. H. and WEGGELAAR, S., "Energy savings potential in office buildings - a case study", Refrigeration and Airconditioning, Vol. 12, No. 5, pp. 34-41, September (1996). * VAN WYK, S.L. and MATHEWS, E.H., "Technical Note : Improvements to the energy efficiency of shacks" R & D Journal, Vol.12, No3, pp.108-112, (1996). * KLEINGELD, M., MATHEWS, E.H. and FULS, W.F., “Development of a public energy savings awareness campaign in South Africa”, Journal of Energy in Southern Africa, Vol. 8, No. 3, pp. 82-88, August 1997. * KLEINGELD, M., MATHEWS, E.H., TAYLOR, P.B., “Reducing domestic electricity use with additional geyser insulation”, Journal of Energy in Southern Africa, Vol. 10, No. 1, pp 13-17 (1999). * MATHEWS, E.H. and PIANI, C.B., “Energy saving guidelines for South African Households” Journal of Energy in Southern Africa, Vol. 10, No. 2, pp 52-64 (1999). * ELS, R., ARNDT, D.C., MATHEWS, E.H. and TAYLOR B.P., "A new concept in building simulation" Refrigeration and Airconditioning, September/October 1999, pp 34-39 (1999). * MATHEWS, E.H. and ELLIS, M.W., "A South African building thermal efficiency rating scheme for residential and office buildings" Journal of Energy in Southern Africa, Vol. 10 No. 3 pp. 97-103 August (1999). * MATHEWS, E.H. and BROUGHTON, B.A. "Low Speed Wind Tunnel Testing of Aircraft Models in Ground Effect Utilising an Overhead Balance" Aeronautica Meridiana, Vol. 13, pp. 14-31, (2000). * MATHEWS, E.H., VAN HEERDEN, E., ARNDT, D.C. and CLAASSEN, D.T., “HVAC cost saving through integrated modelling”, (Part 1 of a two-part article) Refrigeration and Airconditioning, Vol. 17, No 3, pp. 16-18, June (2001). * MATHEWS, E.H., VAN HEERDEN, E., ARNDT, D.C. and CLAASSEN, D.T., “HVAC cost saving through integrated modelling”, (Final part of a two-part article) Refrigeration and Airconditioning, Vol. 17, No 4, pp. 17-19, August (2001). * BASSON, J.A. and STRYDOM, J., “A synthesis of the National Energy Sector Research and Technology Foresight Project as conducted by the Department of Arts, Culture, Science and Technology (DACST)”, Journal of Energy in Southern Africa, Vol. 12, No. 2, pp. 357-364, May (2001). * MATHEWS, E.H., ELS, R., BASSON, J.A., “Load Shifting Potential in South African Mines”, Journal of Energy in Southern Africa, Vol. 14, No. 3, pp.88-93, August (2003). * VAN RENSBURG, J.F., BODENSTEIN, C.P. and MATHEWS, E.H., “Energy Management at a tertiary institution” Journal of Energy in Southern Africa, Vol 15, No. 2, pp. 40 – 49 (2004). * FULS, W.F., MATHEWS, E.H., “Transient Thermal Analysis of a PBMR Spent Fuel Tank Using Finite Difference”, R&D Journal, Vol. 20, No. 2, July (2004). * DEN BOEF, M., MATHEWS, E.H., “Implementation of DSM strategies at Kopanang mine”, Journal of Energy in Southern Africa, Vol. 16, No. 2, pp. 68-73, (May 2005). * HARRIS, H., KRUEGER, DLW., “Implementing energy efficiency policy in South Africa”, Journal of Energy in Southern Africa, Vol. 16, No. 3, pp. 122-128, (August 2005).

* NIEUWOUDT, M.N., MATHEWS, E.H., “Technical note: A disinfectant dispenser for use with portable water containers in rural areas”, R&D Journal, Vol. 21, No 2, pp. 3-8, (July 2005). * RAUTENBACH, W., KRUEGER, D.L.W., MATHEWS, E.H., “Reducing the electricity cost of a Three-Pipe Water Pumping System – a Case Study using software”, Journal of Energy in Southern Africa, Vol. 16, No. 5, (November 2005). * MATHEWS, E.H., WEGGELAAR, S., “Enhancing the Efficiency of Formal Low-cost Houses by the Development of a New Low-cost Ceiling System”, Journal of Energy in Southern Africa, Vol. 17, No. 1 pp. 18-27, February 2006.

* MEYER, B., KRUEGER, D.L.W., MATHEWS, E.H., “The Development of an Improved Labour Planning system for Mines”, South African Journal of Industrial Engineering, Vol. 17, No. 1, pp 91-102, May 2006. * VAN HEERDEN, A., KLEINGELD, M., MATHEWS, E.H., GEYSER, M.F., “The development of an automatic multi calibre weapon system”, R&D Journal, Vol. 23, No. 2, July 2007. * PITIS, C.D., VAN RENSBURG, J.F., KLEINGELD, M., MATHEWS E.H., “A new approach to the efficiency concept in South African industry”, Journal of Energy in Southern Africa, Vol. 18, No. 1, pp. 51-63, February 2007. * MATIMBA, T.A.D., MATHEWS, E.H., “Optimisation of a Storage Facility used to effect power control in the PBMR Power Cycle”, R&D Journal, Vol. 24, No. 1, pp. 34-38, March 2008. * VAN RENSBURG, J., GEYSER, M.F., KLEINGELD, M., MATHEWS, E.H., “Developing ESCo Procedures for Large Telecommunication Facilities Using Novel Simulation Techniques”, JESA, Vol. 19, No. 1, pp.43-54, February 2008. * KLEINGELD, M., MATHEWS, E.H., BOSMAN, A.D., “Investigating load shift and energy efficiency of new technology”, Energize, pp. 56-62, June 2008. * MATHEWS, E.H. and KLEINGELD, M., “Real-time energy management in the cement industry”, Energize, pp. 74-80, June 2008. * MATHEWS, E.H., KLEINGELD, M., BOSMAN, P.H., and VOSLOO, J.C., “Control of a rock winder system to optimise electricity costs”, Energize, pp. 66-69, June 2008. * BOOYSEN, W., KLEINGELD, M., VAN RENSBURG, J.F., “Optimising compressor control strategies for maximum energy savings”, Energize, pp. 65–68, (July 2009).

7. Papers delivered

International papers: * MATHEWS, E.H., "An integrated computational procedure for the prediction of natural ventilation in buildings", Proc. 5th Int. Conference on the Use of Computers in Environmental Engineering related to Buildings, Bath, pp. 247-254 (1986). * MATHEWS, E.H. and WENTZEL, J.D., "Thermal design of non-airconditioned buildings in hot climates", Proc. FRIGAIR 86, Pretoria, Vol. II-28 (6p) (1986). * MATHEWS, E.H. and WENTZEL, J.D., "Prediction of the thermal performance of low-ost housing", Proc. 10th Int. CIB Congress,

Washington, Vol. V, pp. 1657-1664 (1986). * MATHEWS, E.H and MEYER, J.P., "Computation of wind loads on a semi-circular greenhouse", Proc. 7th Int. Conf. Wind Engineering, Aachen, FRG, Vol.4, pp. 81-90 (1987). * CROSBY, C.P., MATHEWS, E.H. and DU PLESSIS, J.P., "The Numerical Prediction of Airflow Through and Around Permeable Windbreaks and Over Buildings", Proc. 6th Int. Conf. on the Use of Numerical Methods for Laminar and Turbulent Flows, Swansea, UK, Vol. 2 (1989). * VISSER, J.A. and MATHEWS, E.H., "Numerical prediction of temperature distribution in a steel bar during hot rolling", Proc. 5th Int. Conf. Numerical Methods for Thermal Problems, Montreal, Part 2, pp. 1484-1494 (1987). * VAN DER WALT, J.C., VISSER, J.A. and MATHEWS, E.H., "Numerical Simulation of the Heat Transfer In and Around a Steel Bar during Reheating and Hot Rolling, Proc. 6th Int. Conf. on the Use of Numerical Methods for Thermal Problems, Swansea, UK, Vol. 2 (1989). * VISSER, J.A. and MATHEWS E.H., "Numerical modelling of combustion, 17th Congress" - International Council of the Aeronautical Sciences, Stockholm, Sweden (September 1990). * ROUSSEAU, P.G. and MATHEWS, E.H., "Numerical simulation of inviscid transonic flow over two-dimensional slender bodies", 7th International Conference on Numerical Methods in Laminar and Turbulent Flow, Stanford, CA, USA (July 1991). * MATHEWS, E.H. and JOUBERT P.H., "Minimising energy consumption in passive buildings by appropriate design", Proc. 3rd Int. Conf. Build Energy Management, Lausanne, Vol. 2 (1987). * MATHEWS, E.H., RICHARDS, P.G. and KLEINGELD, M., "Heat Exchange Between Known Exterior Environments and Enclosed or Partially Enclosed Cavities", Proc. 6th Int. Conf. on the Use of Numerical Methods for Thermal Problems, Swansea, UK, Vol. 2 (1989). * MATHEWS, E.H. and RICHARDS, P.G., "A tool for designers to predict hourly air temperature and sensible energy requirements in buildings", Proc. ASHRAE-FRIGAIR '90 Conference, CSIR, Pretoria, RSA, 10p (April 1990). * MATHEWS, E.H., ROUSSEAU, P.G. and GROBLER, L.J., "Verification of a computer program employing a simplified thermal storage model", Proc. ASHRAE-FRIGAIR '90 Conference, CSIR, Pretoria, RSA, Vol. 1, 10p (1990). * MATHEWS, E.H. and KRUGER, W., "A new approach to thermal efficiency norms for buildings", Proc. ASHRAE-FRIGAIR '90 Conference, CSIR, Pretoria, RSA, Vol. 1, 10p (1990). * MATHEWS, E.H. and RICHARDS, P.G., "A tool for thermal design of passive and low-energy buildings", Proc. World Renewable Energy Congress, Reading, UK, Part 4, pp. 2537-2541 (September 1990). * MATHEWS, E.H. and KRUGER, W., "Thermal norms to ensure low energy architecture - A new approach", Proc. World Renewable Energy Congress, Reading, UK, Part 4, pp. 2643-2647 (September 1990). * MATHEWS, E.H., GROBLER, L.J., KLEINGELD, M., LOMBARD, C., ROUSSEAU, P.G. and SHUTTLEWORTH, A.G., "An integrated approach to the design and management of energy efficient buildings and environment control systems", ROC-RSA Energy Conference, Taipei, Taiwan (March 1991). * MATHEWS, E.H. and LOMBARD, C., "An efficient procedure for finding the steady state solution of periodic, time variable heat transfer

systems", 7th International Conference on Numerical Methods in Thermal Problems, Stanford, CA, USA, Vol. VII, Part 2, pp. 824-832 (July 1991). * MATHEWS, E.H. and ROUSSEAU, P.G., "Numerical simulation of inviscid transonic flow over two-dimensional slender bodies", Proceedings of the 7th International Conference on Numerical Methods in Laminar and Turbulent Flow, Vol. VII, Part 2, pp. 894-900, Stanford, USA (June 1991). * DE KLERK, E., SNYMAN, J.A. and MATHEWS, E.H., "Efficient parallel minimization algorithms in computational fluid dynamics", Fourth SIAM Conference on Optimization, Chicago, USA (May 1992). * MATHEWS, E.H. and ROUSSEAU, P.G., "Natural ventilation in buildings due to wind and buoyancy forces: an integrated approach", Vol. 4, pp. 2039-2043, Second World Renewable Energy Congress, Reading, UK (September 1992). * MATHEWS, E.H., SHUTTLEWORTH, A.G. and HANNA, G.B., "Validation of a design tool for low energy architecture", Vol. 4, pp. 2171-2175, Second World Renewable Energy Congress, Reading, UK (September 1992). * MATHEWS, E.H. and KöHLER, P.A., "An efficient numerical optimization algorithm for flow network design", Proceedings of the eight international conference on numerical methods in laminar and turbulent flow, University College of Swansea, Swansea, Vol 11, pp. 1114 - 1130 (July 1993). * RICHARDS, P.G., MATHEWS, E.H. and SHUTTLEWORTH, A.G., "Electrical energy savings by means of domestic insulation products", Proc. first international conference on domestic use of electrical energy, Cape Technikon, Cape Town, pp 80 - 84 RSA (October 1993). * MATHEWS, E.H. and KöHLER, P.A., "An efficient numerical optimization procedure for duct network design", Frigair Conference '94, Durban (SAIRAC South Africa), 18p (March 1994). * LOMBARD, C., ROUSSEAU, P.G. AND MATHEWS, E.H., "Object oriented simulation of air conditioning systems", Frigair Conference '94, Durban (SAIRAC South Africa), 18p (March 1994). * BUYS, J.H. and MATHEWS, E.H., "Economic feasibility of an HVAC project - a case study", Frigair Conference '94, Durban (SAIRAC South Africa), 21p (March 1994). * GROBLER, L.J., MATHEWS, E.H. and ROUSSEAU, P.G., "Retrofit of a library guided by a computer simulation program", Frigair Conference '94, Durban (SAIRAC South Africa), 8p (March 1994). * MATHEWS, E.H., LOMBARD, C., BUYS, J.H., KöHLER, P.A.J. and GROBLER, L.J., "A simulation program - software for an integrated building and system simulation", Frigair Conference, '94, Durban (SAIRAC South Africa) (March 1994). * KLEINGELD, M. and MATHEWS, E.H., "Monetary value of energy saving actions in developed households", International Conference Domestic use of Electrical Energy, Cape Town, pp. 28-32 (April 1994). * ROUSSEAU, P.G., MATHEWS, E.H., "A new integrated design tool for naturally ventilated buildings", 11th Plea International Conference, Dead Sea, p 26, Israel (July 1994). * MATHEWS, E.H., VAN WYK, S.L., RICHARDS, P.G. and ROUSSEAU, P.G., "Cost-effective improvements for informal low-cost housing", 11th Plea International Conference, Dead Sea, Israel, p 54 (July 1994).

* MATHEWS, E.H., RICHARDS, P.G., VAN WYK, S.L. and ROUSSEAU, P.G., "Energy efficiency of formal low-cost housing", World Renewable Energy Congress, University of Reading, Whiteknights, pp 1231-1234 (September 1994). * KLEINGELD, M., MATHEWS, E.H. and ROUSSEAU P.G., "South African norms for energy conservation in developed households", International Conference Domestic use of Electrical Energy, Cape Town, pp. 39-44 (April 1995). * MATHEWS, E.H. and KLEINGELD, M., "The impact on house energy consumption of geysers are used effectively : Two case studies", International Conference Domestic use of Electrical Energy, Cape Town, pp. 45-52 (April 1995). * MATHEWS, E.H. and KLEINGELD, M., "The impact of ceiling insulation on house energy consumption : A case study", International Conference Domestic use of electrical Energy, Cape Town, pp. 58-61 (April 1995). * VAN WYK S.L., MATHEWS E.H. AND ROUSSEAU P.G., "Energy efficiency improvement of informal housing" International Conference Domestic use of electrical Energy, Cape Town, pp. 100-105 (April 1995). * ROUSSEAU P.G., VORSTER J.S. and MATHEWS E.H., "An innovative numerical algorithm for the calculation of intermittent building thermal loads", 9th International Conference on Numerical Methods in Thermal Problems, Volume IX, Part 2, Atlanta, USA, pp 967- 978 (July 1995). * MATHEWS, E.H. and GROBLER, L.J., "A new holistic approach to HVAC retrofitting", Frigair Conference, Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and BUYS, J.H., "Development of life-cycle cost models for HVAC economic analysis", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and ELLIS, M.W., "Practical evaluation and integrated simulation of building HVAC system performance", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and PIANI, C.B., "Establishing the energy savings potential in South African Office Buildings", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and WEGGELAAR, S., "Energy savings potential in office buildings - A case study technology research and investigations building", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and LOMBARD, C., "Transient Response and Stability of HVAC Systems", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and LOMBARD, C., "The Difinition of 'Cooling and Heating Load'", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and

Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H. and CLAASEN, D.T., "Design of Duct Networks", Frigair Conference 1996, World Trade Centre, Kempton Park, Published by "The South African Institute for Refrigeration and Airconditioning (SAIRAC)", pp. 10, (6-8 March 1996). * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P.B., "The Impact of Geyser Insulation on Domestic Electricity Use", Third International Conference on The Domestic Use of Electrical Energy, Cape Town : Cape Technikon, pp.131-134, (1-2 April 1996). * MATHEWS, E.H., VAN WYK, S.L. and VAN NIEKERK, A., "Solar water heating for the underpriviledged domestic sector", Third International Conference on The Domestic Use of Electrical Energy, Cape Town : Cape Technikon, pp.21-23, (1-2 April 1996). * KLEINGELD, M. and MATHEWS, E.H., "A campaign for promoting domestic energy savings", Third International Conference on The Domestic Use of Electrical Energy, Cape Town : Cape Technikon, pp.42-45, (1-2 April 1996). * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P., "Simulating the impact of ceiling insulation on domestic electricity use in South Africa using a unique thermal design tool", PLEA '96 : Building and Urban Renewal, Belgium, pp. 211-216, (16-18 July 1996). * MATHEWS, E.H., WEGGELAAR, S. and BUYS J.H., "A novel passive design of telecommunication buildings in the desert", PLEA '96 : Building and Urban Renewal, Belgium, pp. 217-222, (16-18 July 1996). * VAN HEERDEN, E. and MATHEWS, E.H., "A new simulation model for passive and low energy architecture", PLEA '96 : Building and Urban Renewal, Belgium, pp. 223-228, (16-18 July 1996). * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P., "Impact of ceiling insulation on household energy consumption", 4th International Conference on the Domestic Use of Electrical Energy, Cape Town : Cape Technikon, pp 178-182, (24-26 March 1997). * MATHEWS, E.H. and PIANI, C.B., "Development of thermal norms for South African middle and high income houses", 4th International Conference on Domestic Use of Electrical Energy, Cape Town : Cape Technikon, pp 96-101, (24-26 March 1997). * VAN HEERDEN, E. and MATHEWS, E.H., "Applying an Integrated Building and HVAC Simulation Tool to Successfully Predict Energy Savings in Buildings, Fifth International Conference for the International Building Performance Simulation Association, September 1997. * MATHEWS, E.H., KLEINGELD, M. and LOMBARD, C., “The role of thermal performance of houses in strategic RDSM planning”, 5th International Conference on Domestic Use of Electrical Energy Conference, Cape Town : Cape Technikon, pp 23-27 (6-8 April 1998). * WEGGELAAR, S., MATHEWS, E.H. “Reducing energy consumption in shacks by the use of low-cost insulation, International Conference, 5th International Conference on Domestic Use of Electrical Energy, Cape Technikon, Cape Town, pp 157-162 (6-8 April 1998). * MATHEWS, E.H., TAYLOR, P.B. and KLEINGELD, M. "Integrating data management, documentation and computer-assisted instruction through a unique software tool", 5

th International Congress on Terminology and

Knowledge Engineering, Innsbruck, Austria, 24-26 August 1999. * MATHEWS, E.H., TAYLOR, P.B., O'RIORDON, L. and KLEINGELD, M., "Increasing R&D productivity by integrating management and research

activities", Society of Research Administrators (SRA) Annual General meeting, Denver, Colorado, USA, 16-20 October 1999. * MATHEWS, E.H., ELS, R., TAYLOR, P.B., JENNER, L., BASSON, J., FOURIE, G., CLAASSEN, D.T., ARNDT, D., “New Software for Dynamic Simulation of Mine Cooling and Ventilation”, South Africa’s 10

th

International FRIGAIR congress, Gallagher Estate, Midrand, 8-10 March 2000. * MATHEWS, E.H., VAN HEERDEN, E., ARNDT, D., CLAASSEN, D.T., “HVAC Cost Saving through Integrated Modeling, South Africa’s 10

th

International FRIGAIR congress, Gallagher Estate, Midrand, 8-10 March 2000. * MATHEWS, E.H., ARNDT, D., GEYSER, F., “The Use of a Integrated Simulation Tool to Optimise HVAC Control”, South Africa’s 10

th

International FRIGAIR congress, Gallagher Estate, Midrand, 8-10 March 2000. * MATHEWS, E.H. and TAYLOR, P.B. and KLEINGELD, M. "A New Concept Low-cost Solar Water Heater", 7

th International Conference on

Domestic Use of Energy Conference, Cape Technikon, Cape Town, Bls. 235-240, 18-19 April 2000. * MATHEWS, E.H., TAYLOR, P.B. KLEINGELD, M. and O'RIORDAN L., "A New Concept Low-cost Solar Water Heater", World Renewable Energy Congress – VI Brighton, UK, pp.1015-1018, 1 – 7 July 2000. * MATHEWS, E.H. and TAYLOR, P.B., "Ceiling insulation and improving indoor summer comfort", The millennium conference on Passive and Low Energy Architecture (PLEA 2000), Cambridge, England, pp. 638-639, 2-5 July 2000. * MATHEWS, E.H. and ARNDT, D.C., "Validation of a new integrated design tool for naturally ventilated buildings", Roomvent 2000, University of Reading, UK, pp. 265-271, 9-12 July 2000. * MATHEWS, E.H., ARNDT, D., CLAASSEN, D.T. and ELS, R., "A New Teaching and Simulation Tool for Low Energy Architecture" TIA 2000 Third International Conference, Oxford Brookes University, UK, No. 6.07, 9-12 July 2000. * MATHEWS EH, MATLALA T, KLEINGELD M, VAN RENSBURG J, “Remote Energy management system (REMS) at Kopanang mine”, International Conference on Industrial & Commercial Use of Energy Convension, Cape Town, 10 & 11 May 2004. * MATHEWS, E.H., MATHEWS C., “A new and better relationship between insulin response/need and ingested carbohydrates (CHO)”, Proc. 64

th Scientific Sessions American Diabetes Association, Orlando,

Vol 53, pp. A578-579 (2004). * HILDEBRAND, G.E., MATHEWS, E.H.,” A new method to predict the carbohydrate needs for diabetics during exercise”, Proc. 64

th Scientific

Sessions American Diabetes Association, Orlando, Vol 53, p. A532 (2004). * HILDEBRAND, G.E., MATHEWS, E.H.,” Using simulation to study the effect of stress on blood glucose levels”, Proc. 64

th Scientific Sessions

American Diabetes Association, Orlando, Vol 53, pp. A516-517 (2004). * MATHEWS, E.H., “Accurate simulation of the blood glucose energy cycle can enhance diabetic drug and product discovery”, Proc. 64

th

Scientific Sessions American Diabetes Association, Orlando, Vol 53, p. A468 (2004). * MATHEWS, E.H., PELZER, R., “More accurate calculation of basal

insulin regime”, Proc. 65th

Scientific Sessions American Diabetes Association, San Diego, Vol 54, p. A621 (2005). * MATHEWS, E.H., MATLALA, T., KRUEGER, D., “Energy management and load shift on the clear water pumps at Elandsrand Gold Mine”, ICUE, Cape Town, 25-27 May 2005. * MATHEWS, E.H., KLEINGELD, M., KRUEGER, D.L.W., “A successful DSM project implemented on the refrigeration plant at Kopanang gold mine”, ICUE, Cape Town, 30-31 May 2006. * KLEINGELD, M., MATHEWS, E.H., “An overview of eight successful DSM projects on the clear water pumps of South African gold mines”, ICUE, Cape Town, 30-31 May 2006. * MATHEWS, E.H., MATHEWS, C., “Are historical ideas on energy metabolized from carbohydrates wrong?”, Proc. 67

th Scientific Sessions

American Diabetes Association, San Diego, Vol 56, pp. A689 (2007). * MATHEWS, E.H., PELZER, R., “A new basal regime calculator”, Proc. 7

th Annual Diabetes Technology Meeting”, San Francisco, p. 107 (2007).

* MATHEWS, E.H., PELZER, R., “Utilizing blood glucose simulation technology in a diabetes educational simulator”, Proc. 7

th Annual

Diabetes Technology Meeting”, San Francisco, p. 108 (2007). * MATHEWS, E.H., PELZER, R., “Using blood glucose simulation technology to quantify the effect of stress on blood glucose levels”, Proc. 7

th Annual Diabetes Technology Meeting”, San Francisco, p. 109

(2007). * MATHEWS, E.H., KLEINGELD, M., BOSMAN, P.H., VOSLOOI, J.C., “Control of a rock winder system to optimise electricity costs and manage maximum demand at Kopanang Gold Mine”, ICUE, Cape Town, 29–30 May 2007. * KLEINGELD, M., MATHEWS, E.H., BOSMAN, A.D., “Investigating load shift and energy efficiency of new technology underground locomotive battery chargers”, ICUE, Cape Town, 29-30 May 2007. * VAN RENSBURG, J.F., GEYSER, M.F., KLEINGELD, M., MATHEWS, E.H., “Developing ESCO procedures for large telecommunication facilities using novel simulation techniques”, ICUE, Cape Town, 29-30 May 2007. * MATHEWS, E.H., KLEINGELD, M., VAN DER BIJL, J., JORDAAN, N., “Real-Time energy management in the cement industry”, ICUE, Cape Town, 29-30 May 2007. * MATHEWS, E.H., PELZER, R., “Blood glucose simulator: more accurate equations for metabolized carbohydrate energy”, Proc. 7

th

Annual Diabetes Technology Meeting”, San Francisco, p. 110 (2007). * MATHEWS, E.H., PELZER, R., “A new blood glucose simulator can enhance drug and product discovery ”, Proc. 7

th Annual Diabetes

Technology Meeting”, San Francisco, p. 111 (2007). * MATHEWS, E.H., PELZER, R., “Diabetic carbohydrate energy requirement calculator for endurance exercise”, Proc. 7

th Annual

Diabetes Technology Meeting”, San Francisco, p. 112 (2007). * VAN DER BIJL, J., KLEINGELD, M., MATHEWS, E.H., “A novel approach to sustainable DSM in deep mine refrigeration systems”, ICUE, Cape Town, p. 21, 27-28 May 2008. * MATHEWS, E.H., PELZER, R., “New technology to ensure sustainability of DSM projects”, ICUE, Cape Town, p. 11, 27-28 May 2008. * BOLT G., KLEINGELD, M., MATHEWS, E.H., PELZER, R., “A unique energy efficiency finance decision model for Energy Services

Companies”, ICUE, Cape Town, p. 115, 27-28 May 2008. * MARIAS, J.H., MATHEWS, E.H., PELZER, R., “Analysing DSM opportunities on mine conveyor systems”, ICUE, Cape Town, p. 5, 27-28 May 2008. * MATHEWS, E.H., HASAN, A., PELZER, R., “Case studies: The environmental impact of DSM projects”, ICUE, Cape Town, 10-12 June 2009. * KLEINGELD, M., DE KOCK, N.J.C.M., MATHEWS, E.H., “Benefits of DSM projects on mines”, ICUE, Cape Town, 10-12 June 2009. * PADACHI, L., BOLT, G., KLEINGELD, M., MARAIS, J., MATHEWS, E.H., “Energy efficiency through the integration of compressed air supply control with air network demand control”, ICUE, Cape Town, 10-12 June 2009. * WANNENBURG, J., BOOYSEN, W., KLEINGELD, M., MATHEWS, E.H., “Measuring the actual impact of DSM projects”, ICUE, Cape Town, 10-12 June 2009. MATHEWS, E.H., JOUBERT, P.H. and RICHARDS, P.G., "An accessible method to predict the thermal performance of buildings at the design stage", Proc. 13th National Passive Solar Conference, Boston, USA, pp. 21-25 (1988).

National papers: * JOUBERT, P.H. and MATHEWS, E.H., "The numerical solution of a novel thermal analysis model", Proc. Conf. on Renewable Energy Potential in South Africa, Cape Town, pp. 23.1-23.11 (1986). * MATHEWS, E.H., "Computer simulation of flow phenomena", Proc. SACAC/ORSSA Symposium, Pretoria, XII (13p) (1986). * MATHEWS, E.H., "Thermal design of passive buildings", Proc. Conf. on Renewable Energy Potential in South Africa, Cape Town, pp. 21.1-21.10 (1986). * CROSBY, C.P., MEYER, J.P. and MATHEWS, E.H., "Numerical prediction of wind - induced pressure distribution on film clad greenhouses", Thirteenth South African Symposium on Numerical Mathematics, Umhlanga Rocks (July 1987). * CROSBY, C.P., VISSER, J.A., MATHEWS, E.H. and MEYER, J.P., "The use of numerical computations in the prediction of wind loads on buildings", 1st National Symposium on CFD, CSIR (October 1988). * VAN ZYL, G.P., MEYER, J.P. and MATHEWS, E.H., "An effective numerical solver for irrotational flow problems", 1st National CFD Symposium, CSIR (October 1988). * MATHEWS, E.H., RICHARDS, P.G. and JOUBERT, P.H., "A thermal model of naturally ventilated buildings", Proc. PACE Conf., Johannesburg, Vol. II, pp. 38.1-38.12 (1987). * JOUBERT, P.H. and MATHEWS, E.H., "Simplified analysis of naturally ventilated buildings", Proc. Solar Energy Seminar and Exhibition, Halfway House, pp. 1-5 (1987). * MATHEWS, E.H. and ROUSSEAU, P.G., "Energy saving through natural ventilation in buildings", Enerconomy '92, CSIR Conference Centre (June 1992). * GROBLER, L.J., MATHEWS, E.H. and ROUSSEAU, P.G., "Integrated building and evaporative coolers design tool", Seminar of the SA Institute of Mechanical Engineers, University of Pretoria (November 1992). * GROBLER, L.J., MATHEWS, E.H. and ROUSSEAU, P.G., "A successful energy audit of the Merensky Library at the University of Pretoria", Enerconomy 1993 (October 1993). * BEUTE, N., HOLM, D., RICHARDS, P.G. and MATHEWS, E.H., "Synthesis of national energy efficiency education", Proc. Enerconomy 1993,

Pretoria Technikon, Pretoria, RSA, p.11 (October 1993). * ROUSSEAU, P.G. and MATHEWS, E.H., "Evaluation of system design and energy efficiency through simulation - a case study", Frigair Conference, '94, Durban (SAIRAC South Africa), 20p (March 1994). * VAN WYK S.L. and MATHEWS E.H., " The use of cardboard as an inexpensive thermal improvement to informal low-cost housing", Conference on Household Energy for Developing Communities, Midrand (July 1995). * VAN WYK S.L. and MATHEWS E.H., "The effect of ceilings and insulation integrated ceilings on the energy efficiency of formal low-cost housing in the Gauteng area", Conference on Household Energy for Developing Communities, Midrand (July 1995). * MATHEWS E.H., VAN WYK S.L. and KOK S., "The impact of domestic solar water heating in South Africa", Conference on Household Energy for Developing Communities, Midrand (July 1995). * MATHEWS, E.H. and PIANI, C.B., "Establishing the energy savings potential in South African office buildings", Conference on energy-efficient retrofit of commercial buildings, ESKOM, Witbank (August 1995). * MATHEWS, E.H., "Entrepreneurship", 3rd Annual South African Entrepreneurship Education Forum, Sandton Sun Convention Centre, Midrand (August 1995). * MATHEWS, E.H. and VAN WYK, S.L., "The Effect of Ceilings and Insulation integrated ceilings on the energy efficiency of formal low-cost housing in the Gauteng area", S A Ceramic Society 27th Annual Symposium, Proceedings pp 28 - 33 (September 1995). * WEGGELAAR, S., MATHEWS, E.H. “Improving the Energy Efficiency of the Home and its Impact on the Environment”, USA - RSA Bi-National Energy and Environment Workshop, University of Durban-Westville, Durban, pp 307-316 (8-12 June 1998). * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P.B. “Helping Post Graduate Students overcome the difficulties with literature surveys”, The Second Post Graduate Experience Conference, Cape Technikon, 28-30 March 1999. * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P.B. “Helping Post Graduate Students to develop their first Research Proposal and Project Plan”, The Second Post Graduate Experience Conference, Cape Technikon, 28-30 March 1999. * MATHEWS, E.H., KLEINGELD, M. and TAYLOR, P.B. “Helping Post Graduate Students overcome “Writer’s Block””, The Second Post Graduate Experience Conference, Cape Technikon, 28-30 March 1999.