David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased...
Transcript of David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased...
![Page 1: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/1.jpg)
David Venus
AEE - Institute for Sustainable
Technologies, Gleisdorf, Austria
Façade integrated HVAC systems
for the renovation of residential buildings
![Page 2: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/2.jpg)
Content
• Project goals and method
• Development of energy supply systems
• Reference building
• Selected simulation results
• Outlook
![Page 3: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/3.jpg)
Research project
HVACviaFACADE…
…prefabricated façade elements with maximum
integrated HVAC components and systems for
the renovation of existing buildings
![Page 4: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/4.jpg)
Project goals
• Increased integration of active and passive HVAC
components in prefabricated facade modules for
high quality retrofitting
• Develop energy supply systems which allow direct
interaction between the active energy elements in
the facade and the room (flat) behind
• High level of prefabrication and easy accessibility for
maintenance purposes
• Make the advantages of multifunctional facades
rateable and compareable
![Page 5: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/5.jpg)
Development of energy supply concepts
Approach:
1. Development and pre-examination of individual
concepts
– Heating
– Domestic hot water
– Ventilation
![Page 6: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/6.jpg)
Development of energy supply concepts
Approach:
1. Development and pre-examination of individual
concepts
2. Pre-evaluation based on different aspects (matrix)
![Page 7: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/7.jpg)
Development of energy supply concepts
Approach:
1. Development and pre-examination of individual
concepts
2. Pre-evaluation based on different aspects (matrix)
3. Selection and merging to “overall supply concepts”
![Page 8: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/8.jpg)
Development of energy supply concepts
Approach:
1. Development and pre-examination of individual
concepts
2. Pre-evaluation based on different aspects (matrix)
3. Selection and merging to “overall supply concepts”
4. Simulation and detailed assessment
![Page 9: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/9.jpg)
Concepts to be simulated
Scenario
heating demand
[kWh/m²a]
30 15
Reference case* X X
Air-to-Water Heat Pump with PV X X
- Increase source temperature by using mechanical exhaust
air X
- Partially increase of outside temperature by using façade integrated air-heater solar collector or PVT collector
X
Air-to-Water Heat Pump with PV X X - Partially increase of outside temperature by using façade
integrated PVT collector X
Direct electric heating using PV and infrared heating X X
Activating the outside wall by using solar heat X X
* central gas fired condensing boiler for heating,
decentralised electric heaters for DHW preparation
![Page 10: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/10.jpg)
Concepts to be simulated
Scenario
heating demand
[kWh/m²a]
30 15
Reference case* X X
Air-to-Water Heat Pump with PV X X
- Increase source temperature by using mechanical exhaust
air X
- Partially increase of outside temperature by using façade integrated air-heater solar collector or PVT collector
X
Air-to-Water Heat Pump with PV X X - Partially increase of outside temperature by using façade
integrated PVT collector X
Direct electric heating using PV and infrared heating X X
Activating the outside wall by using solar heat X X
C
![Page 11: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/11.jpg)
Concepts to be simulated
Scenario
heating demand
[kWh/m²a]
30 15
Reference case* X X
Air-to-Water Heat Pump with PV X X
- Increase source temperature by using mechanical exhaust
air X
- Partially increase of outside temperature by using façade integrated air-heater solar collector or PVT collector
X
Air-to-Water Heat Pump with PV X X - Partially increase of outside temperature by using façade
integrated PVT collector X
Direct electric heating using PV and infrared heating X X
Activating the outside wall by using solar heat X X
C
D
![Page 12: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/12.jpg)
Reference building
Simulation of the entire building
• 4 heated thermal zones
(each including 3 apartments – 1 on each floor)
• 1 unheated staircase
• Unheated basement
• Unheated attic
in total: 687 m² heated floor area
23.42 m
10.5 m
10.79 m
![Page 13: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/13.jpg)
Reference building
Simulation of a single apartment
apartment „large“
63 m² heated floor area
apartment „small“
38 m² heated floor area
![Page 14: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/14.jpg)
Reference building
Simulation of a single apartment
4 thermal zones:
- kitchen
- bathroom
- living room
- bedroom
57 m² heated floor area
![Page 15: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/15.jpg)
68%73%
37%
50%
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
20
40
60
80
100
120
140
160
reference central HP + PVFacade East
central HP + PVFacade East + South
PV Facade East +West
PV Facade East +West + Roof
f_SA
VE
PE
kWh
/a m
²GFA
heat for heating and DHW
useful energy end energy primary energy fSAVE
Simulation results
![Page 16: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/16.jpg)
Simulation results
58%64%
34% 47%
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
20
40
60
80
100
120
140
160
reference central HP + PVFacade East
central HP + PVFacade East + South
PV Facade East +West
PV Facade East +West + Roof
f_SA
VE
PE
kWh
/a m
²GFA
heat for heating and DHW + household electricity
usefule energy end energy primary energy fSAVE
![Page 17: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/17.jpg)
Simulation results
24%
39%45%
57%
39%33%
57% 56%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
central HP + PV Facade East central HP + PV Facade East+ South
PV Facade East + West PV Facade East + West +Roof
%
characteristic values of the PV system - only heat for heating and DHW
solar fraction system own consumption
![Page 18: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/18.jpg)
Simulation results
25%
37% 39%
53%
66%
53%
97%
65%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
central HP + PV Facade East central HP + PV Facade East+ South
PV Facade East + West PV Facade East + West +Roof
%
characteristic values of the PV system - heat for heating and DHW + household electricity
solar fraction total own consumption
![Page 19: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/19.jpg)
Outlook
• First simulations show good results
• Simulations will be finished within the next
weeks
• Life Cycle Costs will be calculated for selected
concepts
• Two façade modules with integrated HVAC will
be constructed and tested at the façade test
facilities of the Graz University of Technology
![Page 20: David Venus - IEA SHC · the renovation of existing buildings . Project goals •Increased integration of active and passive HVAC components in prefabricated facade modules for high](https://reader036.fdocuments.in/reader036/viewer/2022090605/6059e99eae8a2f70023fe95b/html5/thumbnails/20.jpg)
Thank you for your attention!
DI David Venus
AEE – Institute for Sustainable Technologies
Mail: [email protected]
Phone: +43 3112 5886 – 319
http://www.aee-intec.at @AEE_INTEC on Twitter
http://task56.iea-shc.org/