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以热水作为驱动热源,采用活性炭-甲醇作为吸附制冷工质对构建太阳能热水驱动固体吸附式制冰系统。实验研究在有阀门控制和无阀门控制时,在不同加热解吸附时间下的系统制冷性能。对无阀门控制,则重点研究冷凝温度对系统制冷性能的影响。结果表明,在接收能量相当的情况下,无阀门控制时系统的制冷性能高于有阀门控制时系统的制冷性能,平均制冷效率提高20%。冷凝温度越低,系统日制冰量越大,系统制冷效率越高。当冷凝温度为10℃时,无阀门控制系统日制冰量可达8.5 kg,系统纯吸附制冷性能系数(COP_(pure))为0.0893。
Taking hot water as the driving heat source, activated carbon-methanol was used as adsorption refrigerating agent to build solar-powered hot water-driven solid adsorption ice making system. Experimental study of system cooling performance with and without valve control at different heating desorption times. For valveless control, the focus is on the effect of condensing temperature on the system’s cooling performance. The results show that the cooling performance of the system without valve control is higher than that of the system with valve control under the same receiving energy, and the average cooling efficiency is increased by 20%. The lower the condensation temperature, the greater the system daily ice volume and the higher the system cooling efficiency. When the condensing temperature is 10 ℃, the valve-free control system can produce up to 8.5 kg of ice per day, and the coefficient of pure adsorption refrigeration system (COP_ (pure)) is 0.0893.