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Finite time thermodynamic analysis and optimization of water cooled multi-spilit heat pipe system(MSHPS)
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作者 Feihu Chen Shuguang Liao Guangcai Gong 《Energy and Built Environment》 2022年第3期373-383,共11页
This study focuses on the heat transfer characteristics of the evaporation terminal,the cool distribute unit(CDU)and refrigerant flow distribution of a water cooled multi-spilit heat pipe system(MSHPS)used in data cen... This study focuses on the heat transfer characteristics of the evaporation terminal,the cool distribute unit(CDU)and refrigerant flow distribution of a water cooled multi-spilit heat pipe system(MSHPS)used in data center.The finite time thermodynamic analysis,the exergy method and the software SIMULINK was employed to build the simulation model of the combined system.The results show that the IT servers should concentrate on arranging at the location below 1.3 m.The CDU has a heat transfer of about 74 J in a period of 6 s.And the optimum flow rate of the CDU is 0.82 kg/s.The flow distribution characteristic of a CDU which connect 2 heat pipe evaporator terminals of 6 kW was calculated,and the working fluid is R22.Then the free cooling time,part time free cooling and energy saving potential in major cities of China were analysised.The energy saving potential is from 61%to 25%.The results are of great significance for the operational control and practical application of a MSHPS and other pipe-net systems. 展开更多
关键词 Thermodynamic simulation Finite time thermodynamic analysis Exergy method IDC room Heat pipe air-conditioning system simulink software Refrigerant flow distribute characteristic Energy saving potential
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