加湿-除湿脱盐系统在冷库机组COP提升中的应用

IF 6.5 Q2 ENGINEERING, ENVIRONMENTAL

Cleaner Engineering and Technology Pub Date : 2025-09-13 DOI:10.1016/j.clet.2025.101079

K. Srithar, R. Venkatesan, S. Ram Bala Ganesh, S. Leo Arockiasamy

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引用次数: 0

摘要

本研究的主要目的是通过将其与产生水作为副产品的HDH脱盐系统集成来提高冷库系统的COP。因此，将传统的冷库系统集成到一种新型的混合流换热器HDH脱盐系统中，并对其性能进行了实验评估。水冷式除过热器和混流换热器通过制冷剂管路连接到现有的冷库机组。采用V型折流板和矩形折流板两种空气扰流板的新型混合流换热器回收废热。它们已经过实验测试，以增加除湿机部分的传热和冷凝。空气和水的流量分别在682 ~ 2059 kg/h和617 ~ 1112 kg/h之间变化。冷库机组在220 W、440 W、660 W、880 W和1100w 5种不同负载下进行了测试。当空气质量流量为2059 kg/h，水质量流量为617 kg/h时，V型折流板产生的最大COP为4.76，比负荷为220 W的常规机组提高了18.69%。在空气流量为682 kg/s时，加湿器的最高效率为91.6%，最大增益输出比为0.367，回收率为0.077。

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The Implementation of Humidification-Dehumidification Desalination system for COP enhancement in cold storage unit

The main aim of this study is to improve the COP of the Cold Storage system by integrating it with a HDH desalination system which produces water as a by-product. So, a conventional Cold Storage system is integrated to a novel HDH desalination system equipped with a mixed flow heat exchanger and their performance is evaluated experimentally. Water-cooled de-superheater and the mixed flow heat exchanger have been connected to the existing Cold Storage unit via refrigerant pipelines. A novel mixed flow heat exchanger with two types of air turbulators namely V – baffles and rectangular baffles were used to recover the waste heat. They have been tested experimentally to increase the heat transfer and condensation in the dehumidifier section. Air and water flow rates are varied from 682 kg/h to 2059 kg/h and from 617 kg/h to 1112 kg/h respectively. The cold storage unit is tested with five different loads of 220 W, 440 W, 660 W, 880 W and 1100 W. When air and water mass flow rates are 2059 kg/h and 617 kg/h respectively, V - baffles produced a maximum COP of 4.76 which is an increase of 18.69 % from conventional unit for a load of 220 W. At an air flow rate of 682 kg/s, the highest humidifier efficiency of 91.6 %, and maximum gain output ratio of 0.367 and recovery ratio of 0.077 are obtained.

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