Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings
Earth–air tunnel ventilation is an energy efficient method of preheating or cooling of supply air to abuilding. The purposes of this study are to investigate the performance of earth–air heat exchangersunder varying soil and atmosphere conditions and the interactions between the heat exchanger anden...
| Main Author: | |
|---|---|
| Format: | Article |
| Published: |
Elsevier
2014
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/3614/ |
| _version_ | 1848791032927354880 |
|---|---|
| author | Gan, Guohui |
| author_facet | Gan, Guohui |
| author_sort | Gan, Guohui |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Earth–air tunnel ventilation is an energy efficient method of preheating or cooling of supply air to abuilding. The purposes of this study are to investigate the performance of earth–air heat exchangersunder varying soil and atmosphere conditions and the interactions between the heat exchanger andenvironments. A computer program has been developed for simulation of the thermal performance of anearth–air heat exchanger for preheating and cooling of supply air, taking account of dynamic variationsof climatic, load and soil conditions. The program solves equations for coupled heat and moisture transferin soil with boundary conditions for convection, radiation and evaporation/condensation that vary withthe climate both at the soil top surface and inside the heat exchanger. The importance of dynamic inter-actions between the heat exchanger, soil and atmosphere is illustrated from the comparison of the heattransfer rates through the heat exchanger. The predicted heat transfer rate varies with operating time anddecreases along the passage of air in the heat exchanger. Neglecting the interactions would significantlyover-predict the heat transfer rate and the amount of over-prediction increases with operating time. |
| first_indexed | 2025-11-14T18:22:04Z |
| format | Article |
| id | nottingham-3614 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T18:22:04Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-36142020-05-04T20:12:28Z https://eprints.nottingham.ac.uk/3614/ Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings Gan, Guohui Earth–air tunnel ventilation is an energy efficient method of preheating or cooling of supply air to abuilding. The purposes of this study are to investigate the performance of earth–air heat exchangersunder varying soil and atmosphere conditions and the interactions between the heat exchanger andenvironments. A computer program has been developed for simulation of the thermal performance of anearth–air heat exchanger for preheating and cooling of supply air, taking account of dynamic variationsof climatic, load and soil conditions. The program solves equations for coupled heat and moisture transferin soil with boundary conditions for convection, radiation and evaporation/condensation that vary withthe climate both at the soil top surface and inside the heat exchanger. The importance of dynamic inter-actions between the heat exchanger, soil and atmosphere is illustrated from the comparison of the heattransfer rates through the heat exchanger. The predicted heat transfer rate varies with operating time anddecreases along the passage of air in the heat exchanger. Neglecting the interactions would significantlyover-predict the heat transfer rate and the amount of over-prediction increases with operating time. Elsevier 2014-12 Article PeerReviewed Gan, Guohui (2014) Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings. Energy and Buildings, 85 . pp. 12-22. ISSN 0378-7788 Ground heat exchanger earth-air tunnel ventilation energy efficient heating heat transfer moisture transfer soil texture thermal property http://www.sciencedirect.com/science/article/pii/S0378778814007233 doi:10.1016/j.enbuild.2014.09.030 doi:10.1016/j.enbuild.2014.09.030 |
| spellingShingle | Ground heat exchanger earth-air tunnel ventilation energy efficient heating heat transfer moisture transfer soil texture thermal property Gan, Guohui Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| title | Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| title_full | Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| title_fullStr | Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| title_full_unstemmed | Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| title_short | Dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| title_sort | dynamic interactions between the ground heat exchanger and environments in earth–air tunnel ventilation of buildings |
| topic | Ground heat exchanger earth-air tunnel ventilation energy efficient heating heat transfer moisture transfer soil texture thermal property |
| url | https://eprints.nottingham.ac.uk/3614/ https://eprints.nottingham.ac.uk/3614/ https://eprints.nottingham.ac.uk/3614/ |