热管式真空管吸附集热器冷热联供系统的数值模拟

Simulations of a thin wall evacuated thermal tube absorption collector cooling and heating dual function system

提出了一种利用太阳能作为驱动热源的薄壁热管式真空管吸附集热器冷热联供系统,运用数值传热学的方法对真空管吸附集热器建立了相应的数学模型,并进行了一系列的模拟计算,分析了在活性炭-甲醇工质对下,吸附剂导热系数、界面导热系数、密度、蒸发温度和冷凝温度等参数对该系统制冷性能的影响,为进一步完善与改进该系统的性能打下了基础。

A thin wall evacuated thermal tube absorption collector cooling and heating dual function system was presented, which using solar energy as the driven thermal source.The corresponding mathematical model was established for the evacuated tube absorption collector using the numerical method with thermal transfer theory. A series of simulations were done.The effect of characteristics, such as thermal conductivity of the absorber, thermal conductivity of the boundaries, density, evaporation temperature, and condense temperature, on the cooling capability of the system were analyzed. This paved the way for further modification and improvement of the system performance.