新风比对改进型地下水源热泵制热特性的影响  

Effect of Fresh Air Fraction on Heating Performance of Modified Ground-water Heat Pump

作　　者：宋尊 王林[1] 王占伟 刘畅[1] 

机构地区：[1]河南科技大学制冷热泵空调研究所,河南洛阳471023

出　　处：《河南科技大学学报（自然科学版）》2018年第4期34-38,共5页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家自然科学基金项目(51641604);河南省高等学校供热空调重点学科开放实验室研究基金项目(2017HAC104);河南省高等学校重点科研计划基金项目(15A480001)

摘　　要：针对增大新风比会引起空调系统能耗增加的问题,设置了新风预热器的地下水源热泵空调系统,以实现地下水热能梯级利用。在建立热力学数学模型的基础上,分析新风比对新型和传统地下水源热泵机组所承担热负荷、制热性能因数和能耗的影响。研究结果表明:与传统地下水源热泵机组相比,新型地下水源热泵机组节能效果明显。当新风比从10%增加至50%时,新型地下水源热泵机组节省能耗从17.4%上升至32.2%。该新型地下水源热泵空调系统适合作为人员密度高的大型公共建筑中央空调系统。In order to solve the problem that the energy consumption of air conditioning( AC) system was increased with the increase of fresh air ratio,a groundwater source heat pump air-conditioning system with a fresh air preheater was proposed to realize the stage utilization of groundwater thermal energy. Based on the thermodynamic mathematical mode,the effects of fresh air ratio on the thermal loads,coefficient of performance( COP) for heating and energy consumption of innovative and conventional groundwater source heat pump units were analyzed. The results show that the novel groundwater source heat pump unit has remarkable energy conservation effect compared with the conventional groundwater source heat pump unit. The energy saving rate of the novel groundwater source heat pump unit increases from 17. 4% to 32. 2% when the fresh air ratio changes from 10% to 50%. The novel groundwater source heat pump air conditioning system is suitable for large-scale public building central air-conditioning system with large population density.

关 键 词：地下水源热泵 新风预热器 新风比 制热性能因数 能耗 

分 类 号：TU833[建筑科学—供热、供燃气、通风及空调工程]