摘要
空气源热泵由于高效节能无污染的优点,被视为代替燃煤进行供暖的最佳选择,但空气源热泵在低温工况下所表现的不适宜性影响其在严寒地区的广泛应用。以长春地区为例,针对严寒地区应用定频空气源热泵供暖系统单独供暖模式为研究对象,对实际工程供暖系统运行进行监测以及TRNSYS软件仿真模拟来确定空气源热泵机组在严寒地区供暖时运行特性和不同室外温度区间运行特性,确定空气源热泵供暖系统在严寒地区最佳的运行控制方案。提出的优化方案与原始方案相比机组制热效率提高了11.5%,系统COPs提高了约为14.7%;整个供暖季的累计能耗节省了7.55%,折算成标准煤消耗量可减少为3112.7 kg;其供暖效果和节能性都显著提升。
Air-borne heating pump is regarded as the alternative optimum choice of burning coal due to its advantages of high-efficiency, energy conservation and non-pollution.However, the imperfect performance of air-borne heating pump under the conditions of low-temperature areas affects its extensive application in freezing areas. For example, in Changchun region, the application of fixed frequency air-borne heating pump as the sole heating module of heating system for study, monitoring the actual engineering operations of heating system, and using TRNSYS software for analogue simulation are taken to determine the performing attributes of air-borne heating pump units in freezing areas and various outdoor temperature ranges, and the best operating control scheme of air-borne heating pump units in freezing areas. Comparing with initial scheme, the optimized scheme proposed indicates heating efficacy has increased by 11.5%, COPs of system increased by around 14.7%, and the accumulated energy saving consumption is 7.55% in equal to 3112.7 kg as the standard coal consumption. That demonstrates a significant improvement in heating efficacy and energy saving performance.
作者
张喜明
王永辑
曹月勇
李向远
王俊莛
尹维亮
ZHANG Xi-ming;WANG Yong-ji;CAO Yue-yong;LI Xiang-yuan;WANG Jun-ting;YIN Wei-liang(School of Municipal and Environmental Engineering Jilin Jianzhu University,Changchun 130118,China)
出处
《建筑节能（中英文）》
CAS
2022年第7期78-84,共7页
Building Energy Efficiency
关键词
超低温空气源热泵
严寒地区
TRNSYS模拟
运行方案优化
ultra-low temperature air-borne heat pump
severe cold region
TRNSYS simulation
operation scheme optimization
