冬冷地区冰源热泵系统清洁供暖的经济性

doi:10.19799/j.cnki.2095-4239.2021.0206

储能科学与技术 ›› 2021, Vol. 10 ›› Issue (4): 1380-1387.doi: 10.19799/j.cnki.2095-4239.2021.0206

冬冷地区冰源热泵系统清洁供暖的经济性

王瑛滢^1,^2,^3,⁴(), 傅德坤^1,^2,^3,⁵, 陈明彪^1,^2,³, 宋文吉^1,^2,^3,⁴, 冯自平^1,^2,^3,^4,⁵()

^1.中国科学院广州能源研究所
^2.中国科学院可再生能源重点实验室
^3.广东省新能源和可再生能源研究开发与应用重点实验室，广东广州 510640
^4.中国科学院大学，北京 100049
^5.中国科学技术大学工程科学学院，安徽合肥 230026

收稿日期:2021-05-13 修回日期:2021-05-15 出版日期:2021-07-05 发布日期:2021-06-25
通讯作者: 冯自平 E-mail:903479608@qq.com;fengzp@ms.giec.ac.cn
作者简介:王瑛滢（1996—），女，硕士研究生，研究方向为新型热泵技术，E-mail：903479608@qq.com。
基金资助:
中国科学院战略性先导科技专项（A类）(XDA21070305);河南省中国科学院科技成果转移转化项目(202001)

Economy of ice source heat pump clean heating system in cold winter zone

Yingying WANG^1,^2,^3,⁴(), Dekun FU^1,^2,^3,⁵, Mingbiao CHEN^1,^2,³, Wenji SONG^1,^2,^3,⁴, Ziping FENG^1,^2,^3,^4,⁵()

^1.Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences
^2.CAS Key Laboratory of Renewable Energy
^3.Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, Guangdong, China
^4.University of Chinese Academy of Sciences, Beijing 100049, China
^5.School of Engineering Science, University of Science and Technology of China, Hefei 230026, Anhui, China

Received:2021-05-13 Revised:2021-05-15 Online:2021-07-05 Published:2021-06-25
Contact: Ziping FENG E-mail:903479608@qq.com;fengzp@ms.giec.ac.cn

摘要/Abstract

摘要：

我国大部分冬冷地区没有集中供暖设施，采用高效热泵技术是实现清洁供暖的重要途径。基于过冷相变原理的直接蒸发式冰源热泵技术，利用近冰点水的相变潜热作为热源，具有采暖能效高、适用性广的特点。利用EES(engineering equation solver)软件模拟冰源热泵系统的运行性能，研究了循环工质、过冷水过冷度及冷凝温度对系统性能的影响。结果表明：在R22、R410A、R134A、R407C几种工质中，工质R22的系统能效COP_sys最高。针对采用R22工质的热泵系统，当过冷水过冷度由1.0 K提升至3.5 K时，COP_sys由2.87降低至2.71，降低了5.57%；当冷凝温度由35 ℃升高至55 ℃时，COP_sys明显降低，由3.4降至2.3，降低了32.4%。此外，为明确冰源热泵系统在冬冷地区的运行经济性，以上海和重庆200 m²的居民建筑为对象，采用TRNSYS软件模拟两地的供暖负荷动态特性，进一步计算冰源热泵系统运行的耗水量及运行费用。结果表明：在整个供暖季中，冰源热泵系统在上海和重庆的单位供暖面积运行费用分别为12.7元/m²和5.6元/m²，且冰源热泵在上海运行时的经济性更高。

关键词: 清洁供暖, 过冷相变, 冰源热泵, 经济性分析

Abstract:

As there is no central heating in most cold winter zones in China, the use of efficient heat pumps is a promising way to achieve clean heating. Based on the principle of phase transformation under supercooling, ice source heat pump uses the latent heat of water near freezing point, which has high energy efficiency and wide applicability. EES (engineering equation solver) software was used to simulate the performance of the ice source heat pump. The influence of parameters such as refrigerant, supercooling degree and condensing temperature on system performance was studied. The results indicated that R22 refrigerant can achieve the highest COP_sys For the system using refrigerant R22, when subcooling degree of subcooled water increased from 1.0 K to 3.5 K, COP_sys decreased from 2.87 to 2.71, which decreased by 5.57%. When the condensing temperature increased from 35 ℃ to 55 ℃, COP_sys decreased significantly from 3.4 to 2.3. What's more, to analyze the operation economy of ice source heat pump, the dynamic change of heating load of 200 m² building in Shanghai and Chongqing was simulated by TRNSYS. The results showed that the operating costs per square meter during heating period were 12.7 yuan/m² and 5.6 yuan/m² respectively. Besides, ice source heat pumps were more economical when operating in Shanghai.

Key words: clean heating, phase transformation under supercooling, ice source heat pump, operation economy analysis

中图分类号:

TU 83

王瑛滢, 傅德坤, 陈明彪, 宋文吉, 冯自平. 冬冷地区冰源热泵系统清洁供暖的经济性[J]. 储能科学与技术, 2021, 10(4): 1380-1387.

Yingying WANG, Dekun FU, Mingbiao CHEN, Wenji SONG, Ziping FENG. Economy of ice source heat pump clean heating system in cold winter zone[J]. Energy Storage Science and Technology, 2021, 10(4): 1380-1387.

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地区	电价/元·(kW·h)^-1	水价/元·吨^-1	天然气价格/元·m^-2
上海	0.5	3.45	4.20
重庆	0.5	3.50	2.49

地区	燃气锅炉/元·m^-2	空气源热泵/元·m^-2	冰源热泵/元·m^-2
上海	23.5	13.8	12.7
重庆	6.1	6.1	5.6

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冬冷地区冰源热泵系统清洁供暖的经济性

Economy of ice source heat pump clean heating system in cold winter zone

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