空调冷凝热回收利用的影响因素分析  

Analysis of Influence Factor for Condensing Heat Recycling of Air Conditioning

作　　者：刘军[1] 胡益雄[1] 孙超[1] 刘光辉[1] 

机构地区：[1]中南大学能源科学与工程学院

出　　处：《建筑热能通风空调》2015年第5期51-53,共3页Building Energy & Environment

摘　　要：冷凝热的回收可以为生活用水加热提供能源。热水的出水温度、热回收率是衡量冷凝热回收效果的重要参数。本文通过建立数学模型,研究出水温度与水流量、热回收率的关系。结合工程实际,当冷凝温度一定且为42℃时,设计出水温度小于47℃时,热水流量主要取决于潜热负荷和过冷负荷,热回收率随着设计出水温度的升高而增加。在设计出水温度大于47℃时,热水的设计流量主要是由显热负荷决定,且热水流量和冷凝热回收率随出水温度的升高而降低。Condensing heat recovery can provide energy for the domestic hot water. The temperature of heated water and the heat recovery rate are the important parameters evaluating the effect of heat recovery. The relationship between temperature of heated water and water flow rate, heat recovery rate was researched by mathematic model. Combining with an engineering, when the condensing temperature fix on 42℃, the hot water flow rate depends on the latent heat load and the cold load if the designed temperature of heated water is less than 47℃, while the heat recovery rate increases with the designed temperature of heated water increased. When the designed temperature of heated water is greater than47℃, the designed flow rate of heated water depends on the sensible heat load. The heated water flow rate and the heat recovery rate decreases with the temperature of heated water.

关 键 词：热回收 冷凝热 出水温度 热回收率 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]