寒冷地区CO2空气源热泵供暖运行性能分析

陈子丹1 罗会龙1 刘锦春2 曹振国1 赵新帅1 杨武彪1

(1.昆明理工大学建筑工程学院, 云南昆明 650500)
(2.昆明东启科技股份有限公司, 云南昆明 650106)
【知识点链接】超临界CO2

【摘要】CO2空气源热泵能够在寒冷地区低温环境下稳定运行, 可望在建筑供暖领域推广应用。为客观、合理地评价CO2空气源热泵供暖的运行性能, 搭建了寒冷地区超临界CO2空气源热泵供暖系统。根据室外环境温度和供暖热负荷将供暖期划分为5个不同的阶段, 分阶段调整CO2空气源热泵供暖运行参数。测试结果表明, CO2空气源热泵能够满足寒冷地区供暖需求, 且供暖系统在供暖季的平均性能系数可达2.236, 同时供暖房间具有较好的舒适度。以燃煤锅炉、燃气锅炉为参照, 采用等效电方法对比分析了三种热源供暖的能源利用效率及CO2排放量。对比分析结果表明, 在考虑能源品位之后, CO2空气源热泵供暖的能源利用效率高于燃气锅炉供暖, 略低于燃煤锅炉供暖。受燃料含碳量的影响, CO2空气源热泵供暖的CO2排放量虽然高于燃气锅炉供暖, 但比燃煤锅炉供暖减少20.89%。

【关键词】 超临界CO2; 燃料; 测量; 供暖; 空气源热泵; 能源利用效率; CO2排放量;

【DOI】

【基金资助】 国家自然科学基金项目 (51766005) 国家自然科学基金项目 (51766005) 云南省自然科学基金重点项目 (2015FA018) 云南省自然科学基金重点项目 (2015FA018)

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This Article

ISSN:0438-1157

CN: 11-1946/TQ

Vol 69, No. 09, Pages 4030-4036

September 2018

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Article Outline

知识点

摘要

  • 引言
  • 1 CO2空气源热泵供暖系统
  • 2 CO2空气源热泵机组的热力性能
  • 3 运行分析与实验结果
  • 4 能源效率
  • 5 二氧化碳排放量及能源费用经济分析
  • 6 结论
  • 参考文献