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首页> 外文会议>IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems >Waste Heat Recovery Using Coupled 2-Phase Cooling Heat-Pump Driven Absorption Refrigeration
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Waste Heat Recovery Using Coupled 2-Phase Cooling Heat-Pump Driven Absorption Refrigeration

机译：使用两相冷却和热泵驱动吸收式制冷的余热回收

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摘要

Data center waste heat recovery is an energy efficient and economically viable option when the data center is near other facilities. This study explores boosting the vapor from a data center's two-phase server waste heat using a novel vapor recompression system. The boosted waste heat contains sufficient thermal energy to drive an absorption refrigeration (AR) chiller to obtain a stream of cold fluid. Alternatively, the chiller can be bypassed to use the boosted heat directly in the neighboring facility. These approaches are modeled to enable the estimation of energy savings and economic benefits under different cooling and heating loads. These calculations also indicate situations where the compressor should be by-passed, and the server exhaust simply sent to the condenser for rejection to the ambient. The analysis is focused on the waste heat recovery and re-use potential of a 1 MW data center with a mid-size office building in the vicinity. The paper focuses on two key issues: 1) the overall efficiency of the waste heat system, including neighboring sites, when boosted with the novel re-compression system versus a turn-key heat pump coupled with warm-water cooling and 2) a comparison of the relative capital and operating costs of the two systems. The results show that the novel recompression system has a lower cost and a higher thermodynamic efficiency than a warm-water cooling system coupled to a conventional heat pump, and the use of the novel waste heat recovery system is viable in areas with high electricity cost.
机译：当数据中心靠近其他设施时，数据中心余热回收是一种节能且经济可行的选择。这项研究探索了使用新型蒸气再压缩系统来提高数据中心两相服务器废热中的蒸气。增加的废热包含足够的热能，以驱动吸收式制冷（AR）冷却器以获得冷流体流。或者，可以绕过冷却器，以直接在附近的设备中使用增加的热量。对这些方法进行了建模，以能够估算出不同的制冷和制热负荷下的节能量和经济效益。这些计算还指示了应绕开压缩机的情况，并且服务器排气仅被发送到冷凝器以排除周围环境。分析的重点是附近有中型办公楼的1 MW数据中心的废热回收和再利用潜力。本文着重于两个关键问题：1）利用新型再压缩系统与带有热水冷却系统的交钥匙热泵相比，废热系统（包括邻近站点）的整体效率得到提高; 2）比较两个系统的相对资本和运营成本。结果表明，与与传统热泵相连的温水冷却系统相比，该新型再压缩系统具有更低的成本和更高的热力学效率，并且该新型废热回收系统在电力成本较高的地区是可行的。

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