Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China
This thesis calculated and analyzed the feasibility of EAHE in a building in Tianjin, China through theoretical calculation and numerical simulation. According to the theoretical model, the thermal performance of EAHE were obtained by calculating the soil temperature, the calculated temperature of t...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-08-01
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| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X21002173 |
| _version_ | 1818624290415706112 |
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| author | Shuanghua Cao Fan Li Xin Li Bing Yang |
| author_facet | Shuanghua Cao Fan Li Xin Li Bing Yang |
| author_sort | Shuanghua Cao |
| collection | DOAJ |
| description | This thesis calculated and analyzed the feasibility of EAHE in a building in Tianjin, China through theoretical calculation and numerical simulation. According to the theoretical model, the thermal performance of EAHE were obtained by calculating the soil temperature, the calculated temperature of the soil in intermittent operation, the heat release coefficient of tunnel wall and the heat transfer coefficient during intermittent operation. CFD software was used to model summer operating conditions, the hourly air temperature in July in Tianjin was taken as the air temperature of tunnel inlet, simulated the intermittent operation of EAHE for one week, recorded the average temperature of the soil on the tunnel walls and outlet temperature of the working hours of EAHE, data fitting was carried out for the cooling amplitude in the working period, the numerical simulation results accord with the theoretical calculation values. The results of the study indicate that the higher the inlet air temperature, the greater the temperature drop; the soil around the tunnel walls has the characteristic of reducing temperature; considering the modification of the fan temperature rise, COP in winter is greater than that in summer. The energy-saving effect is more significant in winter. |
| first_indexed | 2024-12-16T18:54:36Z |
| format | Article |
| id | doaj.art-cacc9d568e224d828746fb148a7f9f7a |
| institution | Directory Open Access Journal |
| issn | 2214-157X |
| language | English |
| last_indexed | 2024-12-16T18:54:36Z |
| publishDate | 2021-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj.art-cacc9d568e224d828746fb148a7f9f7a2022-12-21T22:20:34ZengElsevierCase Studies in Thermal Engineering2214-157X2021-08-0126101054Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, ChinaShuanghua Cao0Fan Li1Xin Li2Bing Yang3Corresponding author.; School of Environment and Architecture, University of Shanghai for Science and Technology, Box 484, 516 Jun Gong Road, Shanghai, 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Box 484, 516 Jun Gong Road, Shanghai, 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Box 484, 516 Jun Gong Road, Shanghai, 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Box 484, 516 Jun Gong Road, Shanghai, 200093, ChinaThis thesis calculated and analyzed the feasibility of EAHE in a building in Tianjin, China through theoretical calculation and numerical simulation. According to the theoretical model, the thermal performance of EAHE were obtained by calculating the soil temperature, the calculated temperature of the soil in intermittent operation, the heat release coefficient of tunnel wall and the heat transfer coefficient during intermittent operation. CFD software was used to model summer operating conditions, the hourly air temperature in July in Tianjin was taken as the air temperature of tunnel inlet, simulated the intermittent operation of EAHE for one week, recorded the average temperature of the soil on the tunnel walls and outlet temperature of the working hours of EAHE, data fitting was carried out for the cooling amplitude in the working period, the numerical simulation results accord with the theoretical calculation values. The results of the study indicate that the higher the inlet air temperature, the greater the temperature drop; the soil around the tunnel walls has the characteristic of reducing temperature; considering the modification of the fan temperature rise, COP in winter is greater than that in summer. The energy-saving effect is more significant in winter.http://www.sciencedirect.com/science/article/pii/S2214157X21002173EAHEFeasibility analysisEnergy savingNumerical simulationCOP |
| spellingShingle | Shuanghua Cao Fan Li Xin Li Bing Yang Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China Case Studies in Thermal Engineering EAHE Feasibility analysis Energy saving Numerical simulation COP |
| title | Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China |
| title_full | Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China |
| title_fullStr | Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China |
| title_full_unstemmed | Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China |
| title_short | Feasibility analysis of Earth-Air Heat Exchanger (EAHE) in a sports and culture center in Tianjin, China |
| title_sort | feasibility analysis of earth air heat exchanger eahe in a sports and culture center in tianjin china |
| topic | EAHE Feasibility analysis Energy saving Numerical simulation COP |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X21002173 |
| work_keys_str_mv | AT shuanghuacao feasibilityanalysisofearthairheatexchangereaheinasportsandculturecenterintianjinchina AT fanli feasibilityanalysisofearthairheatexchangereaheinasportsandculturecenterintianjinchina AT xinli feasibilityanalysisofearthairheatexchangereaheinasportsandculturecenterintianjinchina AT bingyang feasibilityanalysisofearthairheatexchangereaheinasportsandculturecenterintianjinchina |