Experimental investigation of silica gel-water adsorption chillers with and without a passive heat recovery scheme
Experimental investigation of silica gel-water adsorption chillers with and without a passive heat recovery scheme
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DOI：
10.1016/j.ijrefrig.2004.11.011
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发表时间：
2005-08
期刊：
影响因子：
--
通讯作者：
Xiaolin Wang;H. Chua;K. Ng
中科院分区：
文献类型：
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作者：
Xiaolin Wang;H. Chua;K. Ng
我们的实验表明，对于相同的热交换器库存分配，四床吸附式制冷机提供了12%以上的最终冷却能力比它的两个床对应。此外，在相同的冷却能力下，它比双床冷却器提供了显着改善的瞬时冷却质量。实验证明，不涉及额外的泵送动作或阀门的被动热回收方案的COP增强功能。它将两床式冷水机组和四床式冷水机组的COP分别提高了38%和25%，而对它们的制冷能力没有任何影响。两床和四床冷水机组实现的最高COP分别为0.46±0.02和0.45±0.02。这些是在热水入口温度为85°C、冷却水入口温度为29.4°C和冷冻水入口温度为12.2°C的情况下测量的。
We experimentally show that for the same heat exchanger inventory allocation, a four-bed adsorption chiller delivers a 12% higher ultimate cooling capacity than its two-bed counterpart. In addition it delivers a significantly improved quality of instantaneous cooling than a two-bed chiller at the same cooling capacity. The COP-enhancing feature of a passive heat recovery scheme that does not involve additional pumping action or valves is experimentally proven. It improves the COPs of a two-bed chiller and a four-bed chiller by as much as 38 and 25%, respectively, without any effect on their cooling capacities. The highest COPs achieved with a two-bed and four-bed chillers are 0.46±0.02 and 0.45±0.02, respectively. These are measured at a hot-water inlet temperature of 85°C, cooling-water inlet temperature of 29.4°C and chilled-water inlet temperature of 12.2°C.