等舒适性转轮除湿空调系统性能

分析了太阳能作为再生热源时等舒适性室内状态点下，两种类型的转轮除湿、蒸气压缩和蒸发冷却相结合的转轮除湿空调系统，建立了系统的物理模型并对系统进行数学描述，通过与相同条件下常规蒸气压缩空调系统的计算比较分析，得出转轮除湿空调系统的空气质量流量减少了9．74％，制冷剂质量流量分别减少59．7l％和71．43％；压缩系统性能系数分别提高了11．78％和16．38％；压缩机能耗分别节省了64．17％和76.35％；总负荷能耗分别节省了34．23％和42．32％．在室外工况不同时，发现在干热的气候条件下（如河南三门峡），系统节能明显，分别达到了69．94％和78．01％；而在湿热的气候条件下（如安徽蚌埠），系统节能不明显，但仍达到16．13％和23．82％．

Performance of Hybrid Air Condition Using Desiccant Wheel with Equivalent Comfort

This paper is concerned with studies of two types of desiccant wheel systems combined with vapor compression and evaporation cooling hybrid air conditioning systems at equivalent comfort of indoor air condition to that of conventional air condition. The physical model of hybrid air conditioning systems is established and the performance parameters of the systems are described by mathematical method. And it is found that, compared with conventional vapor-compression air conditioning system in the same operating condition, the air mass flow rate of hybrid air conditioning systems is reduced by 9.74%, the refrigerant mass flow rates are reduced by 59.71% and 71.43%; the coefficient of performance (COP) of vapor-compression systems are improved by 11.78% and 16. 38%; energy consumed in vapor-compression subsystems is reduced by 64. 17% and 76. 35%; the energy consumption of whole loads in the hybrid systems is decreased by 34.23% and 42. 32% (1 kW electric energy can be equivalent to 3 kW heat energy). Energy consumption at different outdoor air climate is also studied. The results illustrate that the energy saving of the aforementioned systems is distinct when operated in dry and hot climate, e. g. , the value is 69. 94% and 78. 01% in Sanmenxia,Henan Province, while operated in hot and humid climate, it is indistinct and the value is 16. 13% and 23. 82% in Bengbu, Anhui Province.