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首页> 美国卫生研究院文献>Journal of Visualized Experiments : JoVE >Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
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Experimental System of Solar Adsorption Refrigeration with Concentrated Collector

机译：集热器太阳能吸附制冷实验系统

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摘要

To improve the performance of solar adsorption refrigeration, an experimental system with a solar concentration collector was set up and investigated. The main components of the system were the adsorbent bed, the condenser, the evaporator, the cooling sub-system, and the solar collector. In the first step of the experiment, the vapor-saturated bed was heated by the solar radiation under closed conditions, which caused the bed temperature and pressure to increase. When the bed pressure became high enough, the bed was switched to connect to the condenser, thus water vapor flowed continually from the bed to the condenser to be liquefied. Next, the bed needed to cool down after the desorption. In the solar-shielded condition, achieved by aluminum foil, the circulating water loop was opened to the bed. With the water continually circulating in the bed, the stored heat in the bed was took out and the bed pressure decreased accordingly. When the bed pressure dropped below the saturation pressure at the evaporation temperature, the valve to the evaporator was opened. A mass of water vapor rushed into the bed and was adsorbed by the zeolite material. With the massive vaporization of the water in the evaporator, the refrigeration effect was generated finally. The experimental result has revealed that both the COP (coefficient of the performance of the system) and the SCP (specific cooling power of the system) of the SAPO-34 zeolite was greater than that of the ZSM-5 zeolite, no matter whether the adsorption time was longer or shorter. The system of the SAPO-34 zeolite generated a maximum COP of 0.169.
机译：为了提高太阳能吸附制冷的性能，建立并研究了带有太阳能集热器的实验系统。该系统的主要组件是吸附床，冷凝器，蒸发器，冷却子系统和太阳能收集器。在实验的第一步中，蒸汽饱和床在封闭条件下被太阳辐射加热，这导致床温和压力升高。当床压力变得足够高时，将床切换为连接到冷凝器，因此水蒸气从床连续流到冷凝器以被液化。接下来，床需要在解吸后冷却。在由铝箔制成的日光屏蔽状态下，循环水回路向床敞开。随着水在床中不断循环，取出床中存储的热量，床压力相应降低。当床压降到蒸发温度下的饱和压力以下时，打开蒸发器的阀。一团水蒸气冲入床中并被沸石材料吸附。随着蒸发器中水的大量蒸发，最终产生了制冷效果。实验结果表明，SAPO-34沸石的COP（系统性能系数）和SCP（系统的特定冷却功率）均大于ZSM-5沸石。吸附时间更长或更短。 SAPO-34沸石系统产生的最大COP为0.169。

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