Optimal design of a novel combined heat source system using solar energy and data center waste heat for desiccant regeneration
Optimal design of a novel combined heat source system using solar energy and data center waste heat for desiccant regeneration
复制标题
利用太阳能和数据中心余热进行干燥剂再生的新型组合热源系统的优化设计
DOI：
10.1016/j.applthermaleng.2024.122845
复制
发表时间：
2024
影响因子：
6.4
通讯作者：
Li G
中科院分区：
文献类型：
--
作者：
Li G
目前，前置式除湿蒸发冷却系统的提出是克服蒸发冷却技术应用局限性的关键突破。但该系统的干燥剂再生过程仍依赖于传统的加热方式，存在热源形式单一、能耗高的问题。为了解决这些问题，本文提出了一种数据中心废热与太阳能相结合的新型热源系统。通过实验测试和仿真，对该系统的性能进行了研究和验证，并对系统集热器的收集面积和倾角进行了合理优化。结果表明，该系统不仅具有优越的性能，而且具有稳定、连续的蓄热能力：日出口温度可达93.36℃，与单一太阳能热源相比，有效运行时间可延长约2 h，优化后的年有效运行时间可达1036 h，月平均出口温度为71.2 ~ 90.6℃。本研究可为前置式除湿蒸发冷却系统的应用提供技术支持。
Nowadays, the raise of a front-loading dehumidified evaporative cooling system has been a key breakthrough in overcoming the application limitations of evaporative cooling technology. However, the desiccant regeneration process of this system still relies on a traditional heating method, coexisting with a single form of heat source and high energy consumption. To solve these problems, a novel heat source system combining data center waste heat and solar energy was proposed in this paper. Through experimental tests and simulation, the performance of this system was investigated and validated, and the collecting-area and inclination angle of system’s collector were reasonably optimized. The results indicate that the novel system not only demonstrates an advantageous performance, but also have the ability to provide regenerative heat in a stable and continuous manner: daily outlet temperature could reach up to 93.36 °C, effective operating hours could be extended by approximately 2 h compared to singular solar heat source, and optimized annual effective operating hours could reach 1036 h with a monthly average outlet temperature ranging from 71.2–90.6 °C. This study can provide a technical support for the application of front-loading dehumidified evaporative cooling system.