| 摘要: |
| 数据中心蕴含丰富的低温余热资源，若将硅胶-水吸附式制冷机组运用于数据中心余热回收且给水冷背板系统提供冷量满足服务器CPU直接水冷的要求及水冷背板的需求，将具有显著的节能效果。本文针对45~60 ℃的低温热源，对吸附式制冷机组进行实验，测量换热流体在不同工况下的温度，结果表明：硅胶-水吸附式制冷机组能够将23 ℃的冷冻水降温至20 ℃以下，产生1.28~4 kW的制冷量，系统COP在0.22~0.51之间。若提高热水温度，降低冷却水温度以及适度提高冷冻水温度可使硅胶-水吸附式制冷机组提供更多的冷量，节能效果更佳。 |
| 关键词: 吸附式制冷 吸附剂 数据中心 余热制冷 |
| DOI： |
| 投稿时间：2018-07-11 修订日期：2018-08-29
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| 基金项目: |
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| Experimental Study on Silica Gel-water Adsorption Refrigeration System for Waste Heat Recovery in Data Center |
|
Peng Jiajie, Ge Tianshu, Pan Quanwen, Wang Ruzhu
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| (Institute of Refrigeration and Cryogenics Engineering, Shanghai Jiao Tong University) |
| Abstract: |
| Data center is a space for central placement and setting of data-processing equipment. It contains abundant low-temperature waste-heat resources. If a silica–water adsorption refrigeration unit is used in the data center for waste heat recovery, the cooling capacity of the refrigeration unit can satisfy the requirements of directly cooling the server CPU and the demand of the water-cooled backboard. The temperature of the heat exchange fluid under different working conditions is measured. The results show that the silica gel–water adsorption chiller can effectively utilize a low-temperature heat source in the range from 45 to 60 ℃ to cool the chilled water from approximately 23 ℃ to below 20 ℃. The cooling capacity is between 1.28 and 4.01 kW, and the coefficient of performance ranges from 0.22 to 0.51. When the hot-water temperature is increased, the cooling-water temperature is reduced, and the temperature of the chilled water is moderately increased. The silica gel–water adsorption chiller can provide more cooling capacity, and the data center can achieve better energy saving results. |
| Key words: adsorption refrigeration adsorbent data center waste heat refrigeration |
