清洗表冷器对中央空调换热量等的影响研究
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摘要
以某实际工程中央空调系统为对象,测试表冷器清洗前后空气的风速、压差、干球温度、相对湿度及表冷器表面的温度,并对比分析所测数据,以实测数据为边界条件进行CFD模拟计算,结果显示表冷器经清洗后机组的风量明显增加,通风阻力显著降低,换热量大幅增加,表明清洗可降低空调运行能耗、提高系统的性能和运行效率。
Taking a practical engineering of central air conditioning system as research object, this paper compares and analyzes the testing data which comes from testing air velocity, pressure difference, dry bulb temperature, relative humidity and surface temperature of surface cooler before cleaning and after cleaning,and CFD simulation is carried out base on the boundary conditions of the measured data. Results show that the air volume of the unit increases obviously, ventilation resistance and heat transfer decreases significantly after cleaning cooler. All this indicate that cleaning air conditioning can reduce energy consumption, improve the system performance and efficiency.
Taking a practical engineering of central air conditioning system as research object, this paper compares and analyzes the testing data which comes from testing air velocity, pressure difference, dry bulb temperature, relative humidity and surface temperature of surface cooler before cleaning and after cleaning,and CFD simulation is carried out base on the boundary conditions of the measured data. Results show that the air volume of the unit increases obviously, ventilation resistance and heat transfer decreases significantly after cleaning cooler. All this indicate that cleaning air conditioning can reduce energy consumption, improve the system performance and efficiency.
引文
[1]公共场所集中空调通风系统清洗消毒规范:WS/T 396—2012[S].
[2]郑爱平.空气调节工程[M].第二版.北京:科学出版社, 2008.
[3]戴锅生.传热学[M].第二版.北京:高等教育出版社, 1999.
[4]李鹏飞,徐敏义,王飞飞.精通CFD工程仿真与案例实战[M].北京:人民邮电出版社, 2011.
[5]杨世铭,陶文铨.传热学[M].第四版.北京:高等教育出版社,2006.
[6]彦启森,石文星,田常青.空气调节用制冷技术[M].第三版.北京:中国建筑工业出版社, 2004.
[2]郑爱平.空气调节工程[M].第二版.北京:科学出版社, 2008.
[3]戴锅生.传热学[M].第二版.北京:高等教育出版社, 1999.
[4]李鹏飞,徐敏义,王飞飞.精通CFD工程仿真与案例实战[M].北京:人民邮电出版社, 2011.
[5]杨世铭,陶文铨.传热学[M].第四版.北京:高等教育出版社,2006.
[6]彦启森,石文星,田常青.空气调节用制冷技术[M].第三版.北京:中国建筑工业出版社, 2004.