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针对传统太阳能驱动吸收式制冷循环制冷效率低、间歇性工作以及机组投资较高等缺点,提出太阳能-电能联合驱动复合制冷循环,利用风冷与水冷压缩制冷单元耦合实现新循环全天候运行,利用太阳能驱动吸收制冷单元制取较高温度冷水直接承担室内显热冷负荷和带走压缩制冷单元冷凝器的热负荷,从而使该循环获得较高热性能系数和机械性能系数。建立组成新循环各单元热力学数学模型,分析逐时太阳辐射强度和室外温度对复合制冷循环的吸收制冷单元热性能系数、水冷和风冷电压缩制冷单元的机械性能系数影响,并与传统风冷电压缩制冷循环的节能效果进行比较分析,获得有益结论。
In view of the disadvantages of traditional solar-driven absorption refrigeration cycle, such as low refrigeration efficiency, intermittent operation and high unit investment, the solar-electric combined drive refrigeration cycle is proposed, and the new cycle all-weather operation is realized by the coupling of air-cooled and water- The absorption refrigeration unit makes the higher temperature cold water directly bear the indoor sensible heat load and the heat load of the compressed refrigeration unit condenser, so that the cycle obtains the higher thermal performance coefficient and the mechanical performance coefficient. The mathematical model of thermodynamics of the units of the new cycle was established. The effect of hourly solar radiation intensity and outdoor temperature on the coefficient of thermal performance of the refrigeration unit, the coefficient of mechanical performance of cooling units cooled by water-cooled and air-cooled voltage were analyzed. Voltage-compression refrigeration cycle comparative analysis of energy-saving, to obtain beneficial conclusions.