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Publikācija: Performance of Heat Recovery Ventilation System with Ground Source Brine Heat Exchanger Pre- Heating System in the Context of nZEB

Publication Type Full-text conference paper published in other conference proceedings
Funding for basic activity Unknown
Defending: ,
Publication language English (en)
Title in original language Performance of Heat Recovery Ventilation System with Ground Source Brine Heat Exchanger Pre- Heating System in the Context of nZEB
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Authors Kalle Kuusk
Jaanus Hallik
Targo Kalamees
Tonu Mauring
Keywords ground source brine heat exchanger, nearly zero energy building, ventilation unit, frost protection.
Abstract The paper analyzes effectiveness of the ventilation unit pre-heating system with a ground source brine heat exchanger in a nearly zero energy building in Estonia. Focus is on the analysis of measured energy usage and possible effects on the energy usage of alternative solutions of the ventilation pre-heating system in terms of nearly zero energy building. The studied building was planned and realized according to the international passive house concept. To further lower the energy demand, the building was equipped with a solar thermal system and a photovoltaic solar system to cover the total final energy demand of the building, making it nearly zero energy building. The ventilation system is equipped with temperature and relative humidity sensors to measure supply, extract, exhaust air parameters and air parameters before and after the pre-heating system. Energy usage to pre-heat the ventilation airflow with a ground source brine heat exchanger was also measured. Our results show that annual energy used for pre-heating the ventilation airflow is around 420 kWh, which makes about 3% of the building’s total energy usage. The efficiency of the ventilation unit heat exchanger was over 80 % in the winter season due to the pre-heating system.
DOI: 10.7250/rehvaconf.2015.002
Reference Kuusk, K., Hallik, J., Kalamees, T., Mauring, T. Performance of Heat Recovery Ventilation System with Ground Source Brine Heat Exchanger Pre- Heating System in the Context of nZEB. In: Proceedings of REHVA Annual Conference 2015 , Latvia, Rīga, 6-9 May, 2015. Rīga: RTU PRESS, 2015, pp.17-22. ISBN 978-9934-10-685-9. e-ISBN 978-9934-10-717-7. Available from: doi:10.7250/rehvaconf.2015.002
ID 20259