A study of passive ventilation integrated with heat recovery
To meet the demand for energy demand reduction in heating, ventilation and air-conditioning systems, a novel design incorporating a heat recovery device into a wind tower was proposed. The integrated system uses a rotary thermal wheel for heat recovery at the base of the wind tower. A 1:10 scale pro...
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| Format: | Article |
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Elsevier
2014
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| Online Access: | https://eprints.nottingham.ac.uk/46448/ |
| _version_ | 1848797328856580096 |
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| author | O'Connor, Dominic Calautit, John Kaiser Hughes, Ben Richard |
| author_facet | O'Connor, Dominic Calautit, John Kaiser Hughes, Ben Richard |
| author_sort | O'Connor, Dominic |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | To meet the demand for energy demand reduction in heating, ventilation and air-conditioning systems, a novel design incorporating a heat recovery device into a wind tower was proposed. The integrated system uses a rotary thermal wheel for heat recovery at the base of the wind tower. A 1:10 scale prototype of the system was created and tested experimentally in a closed-loop subsonic wind tunnel to validate the Computational Fluid Dynamics (CFD) investigation. Wind towers have been shown to be capable of providing adequate ventilation in line with British Standards and the Chartered Institution of Building Services Engineers (CIBSE) guidelines. Despite the blockage of the rotary thermal wheel, ventilation rates were above recommendations. In a classroom with an occupancy density of 1.8 m2/person, the wind tower with rotary thermal wheel was experimentally shown to provide 9 L/s per person at an inlet air velocity of 3 m/s, 1 L/s per person higher than recommended ventilation rates. This is possible with a pressure drop across the heat exchanger of 4.33 Pa. In addition to sufficient ventilation, the heat in the exhaust airstreams was captured and transferred to the incoming airstream, raising the temperature 2 °C, this passive recovery has the potential to reduce demand on space heating systems. |
| first_indexed | 2025-11-14T20:02:08Z |
| format | Article |
| id | nottingham-46448 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:02:08Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-464482020-05-04T20:13:14Z https://eprints.nottingham.ac.uk/46448/ A study of passive ventilation integrated with heat recovery O'Connor, Dominic Calautit, John Kaiser Hughes, Ben Richard To meet the demand for energy demand reduction in heating, ventilation and air-conditioning systems, a novel design incorporating a heat recovery device into a wind tower was proposed. The integrated system uses a rotary thermal wheel for heat recovery at the base of the wind tower. A 1:10 scale prototype of the system was created and tested experimentally in a closed-loop subsonic wind tunnel to validate the Computational Fluid Dynamics (CFD) investigation. Wind towers have been shown to be capable of providing adequate ventilation in line with British Standards and the Chartered Institution of Building Services Engineers (CIBSE) guidelines. Despite the blockage of the rotary thermal wheel, ventilation rates were above recommendations. In a classroom with an occupancy density of 1.8 m2/person, the wind tower with rotary thermal wheel was experimentally shown to provide 9 L/s per person at an inlet air velocity of 3 m/s, 1 L/s per person higher than recommended ventilation rates. This is possible with a pressure drop across the heat exchanger of 4.33 Pa. In addition to sufficient ventilation, the heat in the exhaust airstreams was captured and transferred to the incoming airstream, raising the temperature 2 °C, this passive recovery has the potential to reduce demand on space heating systems. Elsevier 2014-10 Article PeerReviewed O'Connor, Dominic, Calautit, John Kaiser and Hughes, Ben Richard (2014) A study of passive ventilation integrated with heat recovery. Energy and Buildings, 82 . pp. 799-811. ISSN 1872-6178 Air supply rate CFD Natural ventilation Rotary wheel Wind tower Wind tunnel http://www.sciencedirect.com/science/article/pii/S0378778814004745 doi:10.1016/j.enbuild.2014.05.050 doi:10.1016/j.enbuild.2014.05.050 |
| spellingShingle | Air supply rate CFD Natural ventilation Rotary wheel Wind tower Wind tunnel O'Connor, Dominic Calautit, John Kaiser Hughes, Ben Richard A study of passive ventilation integrated with heat recovery |
| title | A study of passive ventilation integrated with heat recovery |
| title_full | A study of passive ventilation integrated with heat recovery |
| title_fullStr | A study of passive ventilation integrated with heat recovery |
| title_full_unstemmed | A study of passive ventilation integrated with heat recovery |
| title_short | A study of passive ventilation integrated with heat recovery |
| title_sort | study of passive ventilation integrated with heat recovery |
| topic | Air supply rate CFD Natural ventilation Rotary wheel Wind tower Wind tunnel |
| url | https://eprints.nottingham.ac.uk/46448/ https://eprints.nottingham.ac.uk/46448/ https://eprints.nottingham.ac.uk/46448/ |