Load Characteristics Analysis of Water-Source Heat Pump System for Harvesting Waste Heat from Small Data Centers
Year: 2024
Type: article
Abstract: The power usage limit becomes lower with the green development of data centers. The small liquid cooling device is emerging as a new cooling option for small data centers with high energy density, which helps recover the waste heat. In this paper, the energy efficiency characteristics of three types of water-source heat pump systems under different surplus heat conditions are compared and analyzed in the surplus heat load range of small data centers. The energy efficiency of the water-source heat pump system is distributed at 5-7, 5-6, and 4.5-6.5 on the source side, transmission and distribution side, and user side, respectively. When the user-side heat load is retained at 0 kW to 1 750 kW and 2 500 kW to 3 200 kW, the energy efficiency of the source-side enhanced water-source heat pump system is highest. When the user-side heating load demand is 1 750 kW to 25 00 kW, the energy efficiency of the source-side enhanced water-source heat pump system is near that of the transmission and distribution-side enhanced water-source heat pump system. Finally, the coupling matching formula QN=kQS is obtained between the user-side heat load demand and data center surplus heat load, in which k ranges from 1.196 2 to 1.364 2.
Authors: Zhou Feng, Song Yu, Ma Guoyuan, Yan Xianghui
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7020544835
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