流体机械

2020, v.48;No.576(06) 66-71

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PV/T与热泵一体化系统中蓄热水箱温度分层性能研究
Experimental Study and Numerical Simulation of Thermal Storage Tank Temperature Stratification Performance in PV/T Integrated Heat Pump System

曲明璐;宋小军;卢明琦;秦瑞丰;
Qu Minglu;Song Xiaojun;Lu Mingqi;Qin Ruifeng;School of Environment & Architecture,University of Shanghai for Science and Technology;

摘要(Abstract):

选取太阳能PV/T与热泵一体化系统中的蓄热水箱作为研究对象,通过试验与数值模拟的方法,分别研究不同流速工况(0.10,0.15,0.20 m/s)以及不同蓄热水箱结构对其温度分层性能的影响。结果表明,在0.10 m/s流速下,进、出水口温差约为2 ℃,且进水流速越大,进水口与出水口之间的温差越小;结构1水箱的取出效率为11.44%,结构2水箱的取出效率12.43%,所以进、出水口位置分布越远,水箱温度分层效果越好。
In this study,the thermal storage tank in the PV/T integrated heat pump system was selected as the research object.Through experimental and numerical simulation,the effects of different flow velocity conditions(0.10,0.15,0.20 m/s) and different tank structures on its temperature stratification were studied.The results show that under the flow rate of 0.10 m/s,the temperature difference between the inlet and outlet was 2 ℃.And it is concluded that the greater the inflow water flow rate,the smaller the temperature difference between the water inlet and the water outlet.The heat release efficiency of structure 1 was 11.44%,and that of structure 2 was 12.43%.Therefore,the farther the inlet and outlet locations are kept apart,the better the stratification effect of the water tank temperature.

关键词(KeyWords): 蓄热水箱;温度分层;数值模拟;太阳能光伏光热系统
thermal storage tank;thermal stratification;numerical simulation;solar photovoltaic photothermal system

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作者(Authors): 曲明璐;宋小军;卢明琦;秦瑞丰;
Qu Minglu;Song Xiaojun;Lu Mingqi;Qin Ruifeng;School of Environment & Architecture,University of Shanghai for Science and Technology;

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