Impact of hybrid ventilation and sewage heat recovery on the energy performance of a low energy building; a feasibility study
Author
Summary, in English
A hybrid ventilation system including sewage heat recovery for low energy buildings has been
investigated using TRNSYS. Energy from solar collectors is used in combination with the heat
recovered from the sewage system to preheat the ventilation air and the cold water for domestic
use. Results show that the new system renders a possibility to use natural ventilation in passive
houses and zero energy buildings. The annual auxiliary energy need for the new system is lower
than for a conventional fan driven ventilation systems using air/air heat recovery units. Depending
on technical solution and site of installation, the system can provide free cooling during the
summer. Since the new system mainly runs on natural forces it is also more silent compared to
standard mechanical ventilation systems.
investigated using TRNSYS. Energy from solar collectors is used in combination with the heat
recovered from the sewage system to preheat the ventilation air and the cold water for domestic
use. Results show that the new system renders a possibility to use natural ventilation in passive
houses and zero energy buildings. The annual auxiliary energy need for the new system is lower
than for a conventional fan driven ventilation systems using air/air heat recovery units. Depending
on technical solution and site of installation, the system can provide free cooling during the
summer. Since the new system mainly runs on natural forces it is also more silent compared to
standard mechanical ventilation systems.
Department/s
Publishing year
2010
Language
English
Publication/Series
[Host publication title missing]
Document type
Conference paper
Publisher
International Solar Energy Society
Topic
- Civil Engineering
Conference name
EuroSun 2010
Conference date
2010-09-28 - 2010-10-01
Conference place
Graz, Austria
Status
Published
Research group
- Energy and Building Design