LASSODE U N I V E R SIT E SCHOOL OF ENGINEERING U N I V E R S I T Y

THE DEPARTMENT OF MECHANICAL ENGINEERING

Invites you to a Research Seminar

COMMUNITY BASED STORAGE SYSTEMS AND DEMAND SIDE MANAGEMENT UTILIZING CLEAN ENERGY Ontario's commercial and residential sectors consume 161 TWht of thermal energy from natural gas annually, resulting in emissions of 33

million tonnes of CO2 [1]. This represents 20% of Ontario’s greenhouse gas (GHG) emissions [2]. The bulk of these emissions occur within cities. Community Energy Plans need to be set to reduce GHG emissions [3]. Ontario uses natural gas to meet peak electricity demand. Over the past 5 years, consumption has averaged 24 TWhe/year which represents 16% of total electrical generation [4].

Amongst the proposed solutions to mitigate this is resorting to clean forms of energy. Amongst them is the solar and geothermal energies. Solar energy needs a carefully designed storage to even out the intermittency of supply and demand when used in water/space heating applications. Energy density can be increased in solar thermal storage by using phase change materials (PCMs). It was found that PCMs duplicates energy density and hence reduces the spatial footprint required for the installation of storage system. In addition, Geothermal sources are another clean alternative by harnessing energy present in the ground. Integrating a compact thermal storage into the geothermal heat pump system can shift heat pump operation to off-peak hours as a way of demand side management. This reflects on the reduction of electric bills and CO2 emissions relative to the peak hours operation. References: [1] Independent Electricity System Operator. “Historical Demand.” Website. Accessed: July 11, 2018. Available: http://www.ieso.ca/en/power-data/demand-overview/historical-demand [2] Independent Electricity System Operator. “LTEP: Comparison of 2014 Forecast vs. 2014 Actual Results”. December, 2015. Accessed: July 11, 2018. Available: http://www.ieso.ca/-/media/files/ieso/document-library/planning-forecasts/long-term-energy-plan/2014-actual-vs-2014-forecast-in-ltep.pdf?la=en [3] Independent Electricity Systems Operator. “Day-Ahead Commitment Process”. Website. Accessed: July 11, 2018. Available: http://www.ieso.ca/sector-participants/market-operations/markets-and-related-programs/day-ahead-commitment-process [4] Independent Electricity Systems Operator. “Guide to the Day-Ahead Commitment Process (DACP)”. Accessed: July 11, 2018. Available: http://www.ieso.ca/-/media/files/ieso/document-library/training/dacpguide.pdf?la=en

MONDAY, October 1st, 2018 3:30 PM BRG 423

Dr Heba Teamah is a postdoctoral fellow and sessional instructor at McMaster University. Her current research focus is on heat pump integration in thermal storage system for demand side management on community level. She received her PhD in 2017. Her PhD was in investigating compact energy storage techniques for multiresidential applications and small scale commercial applications. She has 7 years of mechanical engineering hands-on research experience, including: i) Solar thermal applications, ii) Geothermal heat pump integrated storage systems, iii) Numerical modelling of thermal applications, and iv) Air conditioning and clean room technologies.