Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata
Just as the double-pipe heat exchanger is being utilized in an increasing number of applications, its research content is also deepening. For this paper, based on the air-conditioning cold and heat source project of a building in Handan, Hebei Province, a 300-meter medium-shallow well double-pipe he...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/15/13/4798 |
| _version_ | 1797480143191539712 |
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| author | Wenjing Li Wenke Zhang Zhenxing Li Haiqing Yao Ping Cui Fangfang Zhang |
| author_facet | Wenjing Li Wenke Zhang Zhenxing Li Haiqing Yao Ping Cui Fangfang Zhang |
| author_sort | Wenjing Li |
| collection | DOAJ |
| description | Just as the double-pipe heat exchanger is being utilized in an increasing number of applications, its research content is also deepening. For this paper, based on the air-conditioning cold and heat source project of a building in Handan, Hebei Province, a 300-meter medium-shallow well double-pipe heat exchanger was used for heating and cooling, and a corresponding heat transfer model was established. The changes of parameters such as the inlet and outlet temperature, heat exchange (with and without a temperature gradient), and borehole wall temperature distribution between a single borehole, double boreholes, and four boreholes over one year in medium-shallow wells were simulated and analyzed. By comparing the obtained experimental data and the simulation data, the accuracy of the heat transfer model was verified. This provides a theoretical basis for the further advancement of the project and lays the foundation for an in-depth study of multi-borehole double-pipe heat exchangers. |
| first_indexed | 2024-03-09T21:55:35Z |
| format | Article |
| id | doaj.art-464e5b43068e4032aa74efc71a311e7f |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T21:55:35Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-464e5b43068e4032aa74efc71a311e7f2023-11-23T19:57:32ZengMDPI AGEnergies1996-10732022-06-011513479810.3390/en15134798Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow StrataWenjing Li0Wenke Zhang1Zhenxing Li2Haiqing Yao3Ping Cui4Fangfang Zhang5School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, ChinaHydrogeology Bureau of China National Administration of Coal Geology, Handan 056004, ChinaShandong Zhongrui New Energy Technology Co., Ltd., Jinan 250101, ChinaSchool of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, ChinaJust as the double-pipe heat exchanger is being utilized in an increasing number of applications, its research content is also deepening. For this paper, based on the air-conditioning cold and heat source project of a building in Handan, Hebei Province, a 300-meter medium-shallow well double-pipe heat exchanger was used for heating and cooling, and a corresponding heat transfer model was established. The changes of parameters such as the inlet and outlet temperature, heat exchange (with and without a temperature gradient), and borehole wall temperature distribution between a single borehole, double boreholes, and four boreholes over one year in medium-shallow wells were simulated and analyzed. By comparing the obtained experimental data and the simulation data, the accuracy of the heat transfer model was verified. This provides a theoretical basis for the further advancement of the project and lays the foundation for an in-depth study of multi-borehole double-pipe heat exchangers.https://www.mdpi.com/1996-1073/15/13/4798middle-shallow layerdouble-pipeburied tube heat exchangermulti-boreholeheat transferheating and cooling |
| spellingShingle | Wenjing Li Wenke Zhang Zhenxing Li Haiqing Yao Ping Cui Fangfang Zhang Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata Energies middle-shallow layer double-pipe buried tube heat exchanger multi-borehole heat transfer heating and cooling |
| title | Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata |
| title_full | Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata |
| title_fullStr | Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata |
| title_full_unstemmed | Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata |
| title_short | Investigation of the Heat Transfer Performance of Multi-Borehole Double-Pipe Heat Exchangers in Medium-Shallow Strata |
| title_sort | investigation of the heat transfer performance of multi borehole double pipe heat exchangers in medium shallow strata |
| topic | middle-shallow layer double-pipe buried tube heat exchanger multi-borehole heat transfer heating and cooling |
| url | https://www.mdpi.com/1996-1073/15/13/4798 |
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