相变蓄能-热泵多能互补供能系统冬季性能分析

doi:10.16085/j.issn.1000-6613.2018-0716

化工进展 ›› 2018, Vol. 37 ›› Issue (12): 4638-4645.DOI: 10.16085/j.issn.1000-6613.2018-0716

相变蓄能-热泵多能互补供能系统冬季性能分析

蔡俊杰¹, 全贞花^1,2, 王岗¹, 姚孟良¹, 刘新¹, 赵耀华^1,2

1 北京工业大学绿色建筑环境与节能技术北京市重点实验室, 北京 100124;
2 北京未来网络科技高精尖创新中心, 北京 100124

收稿日期:2018-04-07 修回日期:2018-05-21 出版日期:2018-12-05 发布日期:2018-12-05
通讯作者: 全贞花,副教授,硕士生导师,研究方向为强化传热和可再生能源利用。
作者简介:蔡俊杰(1990-),男,硕士研究生,主要从事新能源应用方面研究。E-mail:nhcaijunjie@163.com。
基金资助:
国家自然科学基金项目（51778010）。

A novel phase-change energy storage-heat pump multi-complementary energy system operation performance in winter

CAI Junjie¹, QUAN Zhenhua^1,2, WANG Gang¹, YAO Mengliang¹, LIU Xin¹, ZHAO Yaohua^1,2

1 Beijing Key Laboratory of Green Built Environment and Energy Efficient Technology, Beijing 100124, China;
2 Beijing Advanced Innovation Center for Future Internet Technology, Beijing 100124, China

Received:2018-04-07 Revised:2018-05-21 Online:2018-12-05 Published:2018-12-05

摘要/Abstract

摘要： 研发了一种新型相变蓄能-热泵多能互补供能系统，该系统冬季可利用水结冰过程释放的潜热作为水源热泵的低温热源，再通过空气能融冰将热量储存于蓄能水箱中，可使系统保持较高的运行性能，同时解决了传统空气源热泵结霜问题。本实验对相变取能供暖、融冰蓄能及空气能直接供暖3种冬季运行模式进行实际测试及理论分析。结果表明，相变取能供暖模式下，平均机组性能系数（COP）达2.80，系统COP达2.10；融冰蓄能模式下，蓄能水箱循环载冷剂进出口温差维持在2℃左右，融冰时长为7h；空气能供暖模式下，平均机组COP达2.73，系统COP达1.93。系统性能在3种运行模式下较为稳定，性能较好。同时对系统节能量、CO₂减排量及经济性进行了分析。该综合供能系统节能减排效果较为显著，为寒冷地区的农村建筑采暖、"京津冀"煤改电政策的实际推广，提供了新的技术方案。

关键词: 热泵, 凝结, 相变, 再生能源, 供能系统, 性能系数

Abstract: A setup of a novel phase-change energy storage-heat pump, multi-complementary energy system was developed. Latent heat, as the low-temperature heat source, could be utilized when the water froze. Subsequently, the heat from the air could be stored in the water tank by heat exchange with ice until the water temperature was closed to the ambient temperature. This way could make the system perform better, and solve the frosting problem of traditional air source heat pump. The system performance in phase transformation heating mode, melting ice storage energy mode and air heating mode, was tested and analyzed. The results showed that the average heat pump COP in phase transformation heating mode was 2.80 with system COP of 2.10. For melting ice storage energy mode, it was maintained at about 2℃ temperature difference between inlet and outlet of circulating refrigerant in the storage tank, and the time for melting ice was 7h. Average heat pump COP in air heating mode was 2.73, and system COP was 1.93. The system performance was stable under the three operation modes. Meanwhile, the amount of system energy-saving and CO₂ emission reduction were calculated, and economy was analyzed. The effect on energy-saving was more significant. The comprehensive energy system could provide a new technical way for the heating of rural buildings heating in cold regions and actual application of "Beijing-Tianjin-Hebei" coal-to-electricity policy.

Key words: heat pump, condensation, phase change, renewable energy, energy system, COP

中图分类号:

TK02

蔡俊杰, 全贞花, 王岗, 姚孟良, 刘新, 赵耀华. 相变蓄能-热泵多能互补供能系统冬季性能分析[J]. 化工进展, 2018, 37(12): 4638-4645.

CAI Junjie, QUAN Zhenhua, WANG Gang, YAO Mengliang, LIU Xin, ZHAO Yaohua. A novel phase-change energy storage-heat pump multi-complementary energy system operation performance in winter[J]. Chemical Industry and Engineering Progress, 2018, 37(12): 4638-4645.

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相变蓄能-热泵多能互补供能系统冬季性能分析

A novel phase-change energy storage-heat pump multi-complementary energy system operation performance in winter

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