Performance comparative study of a solar-powered adsorption refrigerator with a CPC collector/adsorbent bed

Performance comparative study of a solar-powered adsorption refrigerator with a CPC collector/adsorbent bed
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带有 CPC 收集器/吸附床的太阳能吸附式制冷机的性能比较研究

DOI:
10.1016/j.enconman.2018.07.080
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发表时间:
2018-10
影响因子:
10.4
通讯作者:
Xun Ma
Xun Ma
中科院分区:
工程技术1区
文献类型:
--
作者:
Yunfeng Wang;Ming Li;Wenping Du;Qiongfeng Yu;Xu Ji;Xun Ma

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太阳能吸附式制冷具有许多优点。然而,太阳辐射具有相对低的能量密度,并且需要很多时间来加热吸附床。此外,吸附制冷系统的性能系数(COP)相对较低。为了缩短太阳能吸附式制冷的循环时间,提高制冷性能,提出并搭建了一台以活性炭-甲醇为工质对的复合抛物面聚光器(CPC)吸附床太阳能吸附式制冷样机。实验室实验进行了评估和比较的性能和特点,传统的太阳能吸附式制冷系统。实验结果表明,采用CPC捕收剂后,吸附床的升温速度明显加快。与传统的制冷系统相比,新系统的解吸周期在一个循环中减少了三分之一。吸附式制冷循环的脱附率得到显著提高。将CPC集热器应用于太阳能吸附式制冷系统,COP提高了27%。实验结果还表明,将太阳能应用于吸附式制冷,是提高太阳能吸附式制冷性能,实现快速连续制冷循环的一条很有前途的途径concentrating.technology
Solar adsorption refrigeration has many advantages. However, solar radiation has a relatively low energy density and requires much time to heat an adsorbent bed. In addition, the coefficient of performance (COP) of an adsorption refrigeration system is relatively low. In this paper, a new solar adsorption refrigeration prototype, which uses a compound parabolic concentrator (CPC) adsorbent bed with activated carbon-methanol as the working pair, was proposed and built to shorten the cycle time and improve performance. Laboratory experiments were conducted to evaluate and compare its performance and characteristics to those of a conventional solar adsorption refrigeration system. The experimental results show that the speed of the temperature increase of the adsorbent bed was boosted by employing CPC collectors. Compared with a conventional refrigeration system, the desorption period of the new system was reduced by one-third over one cycle. The desorption rate of the adsorption refrigeration cycle was notably improved. By using the CPC collector in a solar adsorption refrigeration system, the COP increased by 27%. The experimental results also show that applying solar concentrating.technology in adsorption refrigeration is a promising approach for improving solar adsorption refrigeration performance and achieving a fast and continuous refrigeration cycle
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