Novel air conditioning system configuration combining sensible and desiccant enthalpy wheels
Novel air conditioning system configuration combining sensible and desiccant enthalpy wheels
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DOI：
10.1016/j.applthermaleng.2017.08.020
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发表时间：
2017-12
影响因子：
6.4
通讯作者：
W. El-Maghlany;Aly A. ElHefni;M. Elhelw;A. Attia
中科院分区：
文献类型：
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作者：
W. El-Maghlany;Aly A. ElHefni;M. Elhelw;A. Attia
研究各种解决方案以减少能源消耗是非常重要的。近年来，空调系统的能耗问题日益突出。本文介绍了一种用于改善大能耗建筑空调系统热工性能的改造方案。医院重症监护病房是医院能耗最高的病房之一，全部采用新风。现有的医院建筑用于这项研究，针对改造的空调系统，具有100%的新鲜空气的重症监护室（ICU）。在拟议的新系统中，首次研究了两个能量轮的布置，以通过排气能量回收来改造现有系统。模拟模型已开发的基础上，建筑能耗模拟程序（EnergyPlus）。一个小时的模拟已经进行了整整一年，建议的改造空调系统被发现是更节能。结果表明，在零热负荷能力的冷却盘管的容量显着减少，从而节省电力消耗高达87.15%，在冬季（2月）和夏季（8月）的最低节省13.53%。
There is a great importance of studying various solutions to reduce energy consumption. The energy consumption in the air conditioning systems became remarkable in the recent years. This paper addresses a retrofit for improving the thermal performance of air conditioning systems in buildings with large energy consumption. Intensive care units in hospitals are one of the most energy consumption units due to all fresh air utilization. An existing hospital building was used for this study, targeting the retrofit of air conditioning system having 100% fresh air for the intensive care unit (ICU). In the proposed new system, an arrangement of two energy wheels is studied for the first time to retrofit existing system through exhaust air energy recovery. Simulation model has been developed on the basis of the building energy simulation program (EnergyPlus). An hourly simulation has been performed for an entire year and the proposed retrofit air conditioning system was found to be more energy efficient. The results show a significant decrease in the cooling coil capacity with zero heating load capacity and hence a saving in power consumption up to 87.15% in winter (February) and lowest saving of 13.53% in summer (August).