Abstract This study proposes a PCM enhanced ventilated window (PCMVW) system for ventilation preheating/precooling purposes for building energy conservation. It is designed into a summer night cooling application and a winter solar energy storage application using different control strategies. An EnergyPlus model of the PCMVW is built to investigate the control strategies. Next, a full-scale experiment is conducted to study the working principle of the PCMVW and to validate the model. With the validated model, the thermal and energy performance of the PCMVW is compared to 2 other ventilation systems and shows that the PCMVW can greatly decrease the cooling/heating energy demand for both summer and winter applications. Finally, the paper proposes control strategies for residential applications under Danish climate conditions. The developed control strategy for summer night cooling application is to use between-glass reflection shading, ventilate directly from PCM heat exchanger to the room while applying VW self-cooling for ventilation pre-cooling mode, and heat the room with air from VW to prevent overcooling of the room. The developed control strategy for winter solar energy storage application is to use between-glass absorption blind, make use of the hot air in VW, and to cool the VW by self-cooling and bypass ventilation to prevent overheating of the room. With the developed control strategies, the building energy saving is up to 62.3% and 9.4% compared to the primitive summer and winter control strategies respectively.

中文翻译：

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PCM增强型通风窗系统性能和控制策略的结合实验和数值研究

摘要 本研究提出了一种用于建筑节能通风预热/预冷目的的 PCM 增强型通风窗 (PCMVW) 系统。它被设计成使用不同控制策略的夏季夜间冷却应用和冬季太阳能存储应用。建立 PCMVW 的 EnergyPlus 模型来研究控制策略。接下来，进行全尺寸实验以研究PCMVW的工作原理并验证模型。使用经过验证的模型，PCMVW 的热能和能源性能与其他 2 个通风系统进行了比较，结果表明 PCMVW 可以大大降低夏季和冬季应用的冷却/加热能源需求。最后，本文提出了丹麦气候条件下住宅应用的控制策略。开发的夏季夜间制冷应用控制策略是采用玻璃间反射遮光，从 PCM 热交换器直接向房间通风，同时采用大众自冷进行通风预冷模式，并用大众的空气加热房间以防止房间过冷。开发的冬季太阳能储能应用控制策略是采用玻璃间吸收百叶窗，利用大众汽车的热空气，通过自冷和旁通通风来冷却大众汽车，防止房间过热。采用所开发的控制策略，与原始的夏季和冬季控制策略相比，建筑节能分别高达62.3%和9.4%。PCM换热器直接对房间通风，同时采用大众自冷进行通风预冷模式，用大众的空气加热房间，防止房间过冷。开发的冬季太阳能储能应用控制策略是采用玻璃间吸收百叶窗，利用大众汽车的热空气，通过自冷和旁通通风来冷却大众汽车，防止房间过热。采用所开发的控制策略，与原始的夏季和冬季控制策略相比，建筑节能分别高达62.3%和9.4%。PCM换热器直接对房间通风，同时采用大众自冷进行通风预冷模式，用大众的空气加热房间，防止房间过冷。开发的冬季太阳能储能应用控制策略是采用玻璃间吸收百叶窗，利用大众汽车的热空气，通过自冷和旁通通风来冷却大众汽车，防止房间过热。采用所开发的控制策略，与原始的夏季和冬季控制策略相比，建筑节能分别高达62.3%和9.4%。利用大众汽车的热风，通过自冷和旁路通风来冷却大众汽车，以防止房间过热。采用所开发的控制策略，与原始的夏季和冬季控制策略相比，建筑节能分别高达62.3%和9.4%。利用大众汽车的热风，通过自冷和旁路通风来冷却大众汽车，以防止房间过热。采用所开发的控制策略，与原始的夏季和冬季控制策略相比，建筑节能分别高达62.3%和9.4%。