E3S Web Conf.
Volume 111, 2019CLIMA 2019 Congress
|Number of page(s)||5|
|Section||High Energy Performance and Sustainable Buildings|
|Published online||13 August 2019|
Optimal operation strategy for subway HVAC system in transition seasons
1 Department of Building Science, Tsinghua Unversity, Beijing, China
2 Wuxi Metro Group Co., Ltd, Wuxi, China
* Corresponding author: firstname.lastname@example.org
This paper mainly studied the operation strategy for subway VAC system during transition seasons. Two modes including WF-AC (Whole Fresh air- Air Conditioning) mode and B/E-V (Back/Exhausted fan-Ventilation) mode were selected based on energy saving principle. In order to decide the optimal operation mode, the calculation method of “switching temperature” was proposed. The main influencing factors of the switching condition include indoor cooling load, COP of the chilled-water-system, temperature difference of the supply air, efficiency of fan and the resistance of air duct. Also, the transfer temperature diagram is provided based on proposed calculation method, which is suitable for engineering use. The aim of this study is to regulate the operation mode and to promote energy saving in subway station.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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