为满足空气源热泵冬季集中供热的需求,该文采用新型工质将空气源热泵的制热温度提高至90 ℃以上。首先建立高温空气源热泵的数学模型并对该系统进行理论计算,进而搭建高温空气源热泵试验台,分别在环境温度为0、5、10 ℃时对模拟结果进行实验验证,当热水进口温度为80 ℃时,系统实际COP分别较理论结果低5.9%、5.3%和1.7%。该空气源热泵相比现有技术提升制热温度40 ℃以上,因此具有较好的市场应用前景和推广意义。
Abstract
In order to meet the demand of air source heat pump central heating in winter, this study uses a new working medium to raise the heating temperature of air source heat pump to more than 90 ℃. Firstly, the mathematical model of high-temperature air source heat pump is established to simulate the system, and then a high-temperature air source heat pump test bench is built to verify the simulation results at ambient temperatures of 0, 5 and 10 ℃, respectively. When the inlet temperature of hot water is 80 ℃, the actual COP of the system is 5.9%, 5.3% and 1.7% lower than the theoretical results, respectively. Compared with the existing technology, the heating temperature of the air source heat pump is increased by more than 40 ℃, so it has a good market application prospect and promotion significance.
关键词
空气源热泵 /
高温热泵 /
复叠式热泵 /
性能系数
Key words
air source heat pump /
high temperature heat pump /
cascade heat pump /
COP
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基金
国家重点研发计划（2019YFE0104900）; 国家自然科学基金重大项目（52090062)：中央高校基本科研业务费专项资金资助项目（2020MS009)
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