Investigation and modelling of the centralized solar domestic hot water system in residential buildings

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• 作者：Xiaohang Feng ; Da Yan ; Rui Yu ; Yan Gao
• 关键词：domestic hot water ; occupant behavior ; solar energy ; energy consumption ; energy efficiency
• 刊名：Building Simulation
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：10
• 期：1
• 页码：87-96
• 全文大小：1,975 KB
• 刊物类别：Engineering
• 刊物主题：Building Construction, HVAC and Refrigeration
  Engineering Thermodynamics and Transport Phenomena
  Atmospheric Protection, Air Quality Control and Air Pollution
  Environmental Computing and Modeling
  Chinese Library of Science
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1996-8744
• 卷排序：10

文摘

The solar domestic hot water (DHW) system is applied as a building energy saving technique. The centralized system, which is considered to provide both energy efficiency by exploiting solar energy and high-level services to the customers as the occupants could have access to the hot water at any time during the day, is widely used among the various forms of solar DHW systems. The real performance of a centralized solar DHW system is measured, based on which a model describing the solar energy collection, water supply, and terminal water use is built. The simulation reveals that the actual energy performance of the centralized DHW system is closely related with the occupant behaviour, i.e., the water use patterns of the occupants residing in a building. This study concluded that whether the DHW system is energy efficient or not could not be evaluated without considering the water use patterns of the occupants.