双蓄能空调蓄热实验  

Thermal storage in an air conditioning system with dual energy storage unit

作　　者：李栋梁[1,2] 石海民[1] 梁德青[1,2] 

机构地区：[1]中国科学院广州能源研究所,中国科学院天然气水合物重点实验室,广东广州510640 [2]中国科学院广州天然气水合物研究中心,广东广州510640

出　　处：《储能科学与技术》2014年第5期480-485,共6页Energy Storage Science and Technology

摘　　要：在自行搭建的双蓄能实验平台上进行了制冷兼蓄热实验研究,对比了制冷兼蓄热模式和一般制冷模式,探讨了不同冷冻水流量和不同风机盘管风量对机组性能的影响。实验结果表明:蓄热对机组制冷端的影响很小,但是由于回收了大量的冷凝热,使得机组的综合能效比得到大幅提高,因此蓄热对空调节能具有较大作用。此外,在制冷兼蓄热模式下,冷冻水流量或风机盘管风量越大,机组的综合能效比越大,当风量为1033 m3/h、冷冻水流量为972 L/h时,机组综合能效比高达7.06。Recovery of condensing heat is one of the important methods for energy saving in air conditioning. This not only increases the energy efficiency, but also reduces peak shaving and power load balancing demands. This paper reports the use of a self-developed phase change material for thermal storage in a dual energy storage air conditioning system. The thermal energy storage material is placed in the heat accumulator of the air conditioning unit. Experiments are carried out in different modes including space cooling and water heating, cool storage and water heating, and space cooling and heat storage. Effects of various factors including coolant flux, heat water flux and fan coil air flow are investigated on the whole system performance. It is found that, in the space cooling and heat storage mode, heat storage has little effect on space cooling, but improves the integrated energy efficiency ratio （lEER） significantly, an indication of energy saving of the air conditioning system. In this mode, the greater the coolant flux and fan coil air flow, the greater the IEER of the system. An lEER of 7.06 has been obtained at a fan coil air flowrate of 1033 m3/h and a coolant flux of 972 L/h.

关 键 词：空调节能 蓄热 双蓄能空调 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]