太阳能-地源热泵耦合系统的容量匹配与优化

IF 0.7 4区 地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS
Jing-hui Luo, Yun-xin Huang, Jing-gang Wang, Wei Liu, Wen-hong Wang, Zi-chen Han, Chang-jian Zhang
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引用次数: 0

摘要

地源热泵系统在北方农村供暖应用中显示出巨大的潜力;然而,这些系统的有效性往往受到具有挑战性的地质条件的限制。例如,在某些地区,安装热交换器的埋地管道可能比较复杂,而且这些管道不一定总能为系统中的热泵提供高效的低温热源。为解决这一问题,本研究探讨了使用太阳能收集设备来补充地埋管道。在这种设计中,太阳能和地热能都能为热泵提供低温热量。首先,使用 TRNSYS 建立了太阳能-地源热泵耦合系统的模拟模型。通过对各种系统配置(包括不同数量的埋管、不同面积的太阳能集热器和不同容积的水箱)进行实验和模拟,验证了该模型的准确性。模拟检查了这些组件的耦合特性及其对系统性能的影响。结果显示,系统的运行参数在以下配置中保持一致:三根埋管,埋深 20 米,集热器面积 6 平方米,水箱容积 0.5 立方米;四根埋管,埋深 20 米,集热器面积 3 平方米,水箱容积 0.5 立方米;五根埋管,埋深 20 米。此外,研究结果表明,与地源热泵系统相比,太阳能-地源热泵耦合系统的年累计能耗更低,比地源热泵系统的能耗降低了 5.31%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Capacity matching and optimization of solar-ground source heat pump coupling systems

Ground source heat pump systems demonstrate significant potential for northern rural heating applications; however, the effectiveness of these systems is often limited by challenging geological conditions. For instance, in certain regions, the installation of buried pipes for heat exchangers may be complicated, and these pipes may not always serve as efficient low-temperature heat sources for the heat pumps of the system. To address this issue, the current study explored the use of solar-energy-collecting equipment to supplement buried pipes. In this design, both solar energy and geothermal energy provide low-temperature heat to the heat pump. First, a simulation model of a solar-ground source heat pump coupling system was established using TRNSYS. The accuracy of this model was validated through experiments and simulations on various system configurations, including varying numbers of buried pipes, different areas of solar collectors, and varying volumes of water tanks. The simulations examined the coupling characteristics of these components and their influence on system performance. The results revealed that the operating parameters of the system remained consistent across the following configurations: three buried pipes, burial depth of 20 m, collector area of 6 m2, and water tank volume of 0.5 m3; four buried pipes, burial depth of 20 m, collector area of 3 m2, and water tank volume of 0.5 m3; and five buried pipes with a burial depth of 20 m. Furthermore, the heat collection capacity of the solar collectors spanning an area of 3 m2 was found to be equivalent to that of one buried pipe. Moreover, the findings revealed that the solar-ground source heat pump coupling system demonstrated a lower annual cumulative energy consumption compared to the ground source heat pump system, presenting a reduction of 5.31% compared to the energy consumption of the latter.

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来源期刊
Applied Geophysics
Applied Geophysics 地学-地球化学与地球物理
CiteScore
1.50
自引率
14.30%
发文量
912
审稿时长
2 months
期刊介绍: The journal is designed to provide an academic realm for a broad blend of academic and industry papers to promote rapid communication and exchange of ideas between Chinese and world-wide geophysicists. The publication covers the applications of geoscience, geophysics, and related disciplines in the fields of energy, resources, environment, disaster, engineering, information, military, and surveying.
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