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本文在对北京地区某办公建筑板翅式新/排风显热回收系统进行实测的基础上,研究了室内外温差和风量等因素对热回收系统显热效率η及系统能效比EER的影响,分析了回收排风热量预处理新风对降低新风负荷的作用。研究得出,板翅式显热回收系统在北京地区冬季供暖期使用时,显热效率η在60%～70%之间,且具有较高的能效比EER,可节约新风能耗50%以上。
Based on the measurement of a plate-fin heat / exhaust heat recovery system in an office building in Beijing, this paper studies the influence of indoor and outdoor temperature difference and air volume on the sensible heat efficiency η and EER of the heat recovery system. Recycling exhaust heat to pretreat fresh air to reduce the role of fresh air load. The results show that when the plate-fin heat recovery system is used in the winter heating period in Beijing, the sensible heat efficiency η is between 60% and 70%, and has a high EER, which can save more than 50% of the fresh air energy consumption.