{"title":"太阳能-地源热泵耦合系统的容量匹配与优化","authors":"Jing-hui Luo, Yun-xin Huang, Jing-gang Wang, Wei Liu, Wen-hong Wang, Zi-chen Han, Chang-jian Zhang","doi":"10.1007/s11770-024-1130-7","DOIUrl":null,"url":null,"abstract":"<p>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 m<sup>2</sup>, and water tank volume of 0.5 m<sup>3</sup>; four buried pipes, burial depth of 20 m, collector area of 3 m<sup>2</sup>, and water tank volume of 0.5 m<sup>3</sup>; 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 m<sup>2</sup> 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.</p>","PeriodicalId":55500,"journal":{"name":"Applied Geophysics","volume":"154 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Capacity matching and optimization of solar-ground source heat pump coupling systems\",\"authors\":\"Jing-hui Luo, Yun-xin Huang, Jing-gang Wang, Wei Liu, Wen-hong Wang, Zi-chen Han, Chang-jian Zhang\",\"doi\":\"10.1007/s11770-024-1130-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>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 m<sup>2</sup>, and water tank volume of 0.5 m<sup>3</sup>; four buried pipes, burial depth of 20 m, collector area of 3 m<sup>2</sup>, and water tank volume of 0.5 m<sup>3</sup>; 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 m<sup>2</sup> 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.</p>\",\"PeriodicalId\":55500,\"journal\":{\"name\":\"Applied Geophysics\",\"volume\":\"154 1\",\"pages\":\"\"},\"PeriodicalIF\":0.7000,\"publicationDate\":\"2024-08-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Geophysics\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1007/s11770-024-1130-7\",\"RegionNum\":4,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Geophysics","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1007/s11770-024-1130-7","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
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.
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.