Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings
A ground heat exchanger is used to transfer thermal energy stored in soil in order to provide renewable heating, cooling and ventilation of a building. A computer program has been developed for simulation of the dynamic thermal performance of horizontally coupled earth-liquid heat exchanger for a gr...
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/38978/ |
| _version_ | 1848795732888256512 |
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| author | Gan, Guohui |
| author_facet | Gan, Guohui |
| author_sort | Gan, Guohui |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | A ground heat exchanger is used to transfer thermal energy stored in soil in order to provide renewable heating, cooling and ventilation of a building. A computer program has been developed for simulation of the dynamic thermal performance of horizontally coupled earth-liquid heat exchanger for a ground source heat pump and earth-air heat exchanger for building ventilation. Neglecting the dynamic interactions between a heat exchanger and environments would significantly over predict its thermal performance and in terms of the amount of daily heat transfer the level of over-prediction could be as much as 463% for an earth-liquid heat exchanger and more than 100% for an earth-air heat exchanger. The daily heat transfer increases with soil moisture and for an earth-liquid heat exchanger the increase is between 3% and 35% with increase in moisture from 0.22 to 0.3 m3/m3 depending on the magnitude of heat transfer. Heat transfer through a plastic earth-liquid heat exchanger can be increased by 10%–12% if its thermal properties are improved to the same as surrounding soil. The increase is smaller between 2% and 4% for an earth-air heat exchanger. In addition, an earth-liquid heat exchanger is more efficient than an earth-air heat exchanger. |
| first_indexed | 2025-11-14T19:36:46Z |
| format | Article |
| id | nottingham-38978 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:36:46Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-389782020-05-04T18:20:01Z https://eprints.nottingham.ac.uk/38978/ Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings Gan, Guohui A ground heat exchanger is used to transfer thermal energy stored in soil in order to provide renewable heating, cooling and ventilation of a building. A computer program has been developed for simulation of the dynamic thermal performance of horizontally coupled earth-liquid heat exchanger for a ground source heat pump and earth-air heat exchanger for building ventilation. Neglecting the dynamic interactions between a heat exchanger and environments would significantly over predict its thermal performance and in terms of the amount of daily heat transfer the level of over-prediction could be as much as 463% for an earth-liquid heat exchanger and more than 100% for an earth-air heat exchanger. The daily heat transfer increases with soil moisture and for an earth-liquid heat exchanger the increase is between 3% and 35% with increase in moisture from 0.22 to 0.3 m3/m3 depending on the magnitude of heat transfer. Heat transfer through a plastic earth-liquid heat exchanger can be increased by 10%–12% if its thermal properties are improved to the same as surrounding soil. The increase is smaller between 2% and 4% for an earth-air heat exchanger. In addition, an earth-liquid heat exchanger is more efficient than an earth-air heat exchanger. Elsevier 2016-11-24 Article PeerReviewed Gan, Guohui (2016) Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings. Renewable Energy, 103 . pp. 361-371. ISSN 1879-0682 Ground heat exchanger; Heat and moisture transfer; Ground-source heat pump; Earth-air ventilation; Dynamic interaction http://www.sciencedirect.com/science/article/pii/S0960148116310369 doi:10.1016/j.renene.2016.11.052 doi:10.1016/j.renene.2016.11.052 |
| spellingShingle | Ground heat exchanger; Heat and moisture transfer; Ground-source heat pump; Earth-air ventilation; Dynamic interaction Gan, Guohui Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| title | Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| title_full | Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| title_fullStr | Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| title_full_unstemmed | Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| title_short | Dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| title_sort | dynamic thermal simulation of horizontal ground heat exchangers for renewable heating and ventilation of buildings |
| topic | Ground heat exchanger; Heat and moisture transfer; Ground-source heat pump; Earth-air ventilation; Dynamic interaction |
| url | https://eprints.nottingham.ac.uk/38978/ https://eprints.nottingham.ac.uk/38978/ https://eprints.nottingham.ac.uk/38978/ |