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2024 | OriginalPaper | Chapter

Integrated System of Exhaust Air Heat Pump and Advanced Air Distribution for Energy-Efficient Provision of Outdoor Air

Authors : Sheng Zhang, Yuxin Li, Zhang Lin

Published in: Stratum Ventilation—Advanced Air Distribution for Low-Carbon and Healthy Buildings

Publisher: Springer Nature Singapore

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Abstract

To effectively mitigate the risk of respiratory diseases, a significant supply of fresh outdoor air is necessary. However, this requirement results in a considerable increase in energy consumption. This chapter introduces an innovative integrated approach that combines an exhaust air heat pump (EAHP) and advanced air distribution to address this challenge. The findings demonstrate that the integration of the EAHP with advanced air distribution achieves energy savings through three key mechanisms. Firstly, by utilizing the waste heat from the exhaust air, the EAHP decreases the condensation temperature, thus enhancing the coefficient of performance. Secondly, advanced air distribution reduces the ventilation load. Lastly, advanced air distribution lowers the condensation temperature and raises the evaporation temperature, further improving the coefficient of performance. The EAHP alone achieves energy savings of 18%, while advanced air distribution contributes to energy savings of 36%. When combined, the integrated system achieves energy savings of 45%. When compared to a conventional system utilizing an outdoor air heat pump (OAHP) with mixing ventilation, the proposed integrated system of OAHP with stratum ventilation achieves energy savings ranging from 21 to 35% across various outdoor air ratios and temperatures.

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previous chapter Reducing Exposure Risk in Hospital Wards by Applying Stratum Ventilation System
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Metadata
Title
Integrated System of Exhaust Air Heat Pump and Advanced Air Distribution for Energy-Efficient Provision of Outdoor Air
Authors
Sheng Zhang
Yuxin Li
Zhang Lin
Copyright Year
2024
Publisher
Springer Nature Singapore
Book
Stratum Ventilation—Advanced Air Distribution for Low-Carbon and Healthy Buildings

Print ISBN: 978-981-9768-54-7

Electronic ISBN: 978-981-9768-55-4

Copyright Year: 2024

DOI
https://doi.org/10.1007/978-981-97-6855-4_17