Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation
Air-to-air heat/energy recovery ventilators can effectively reduce the cost associated with ventilating a home. However, high indoor moisture levels, in conjunction with extreme temperature differences between the outdoor and indoor air can cause frost accumulation in the mechanical equipment, leadi...
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EDP Sciences
2021
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Online Access: | https://doi.org/10.1051/e3sconf/202124611010 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_11010.pdf https://doaj.org/article/3df4952fd1b34a63aef69ef8d32469b6 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:3df4952fd1b34a63aef69ef8d32469b6 2023-05-15T15:02:11+02:00 Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation Berquist Justin Banister Carsen Pellissier Mathieu 2021-01-01 https://doi.org/10.1051/e3sconf/202124611010 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_11010.pdf https://doaj.org/article/3df4952fd1b34a63aef69ef8d32469b6 en fr eng fre EDP Sciences 2267-1242 doi:10.1051/e3sconf/202124611010 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_11010.pdf https://doaj.org/article/3df4952fd1b34a63aef69ef8d32469b6 undefined E3S Web of Conferences, Vol 246, p 11010 (2021) envir archi Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.1051/e3sconf/202124611010 2023-01-22T19:24:34Z Air-to-air heat/energy recovery ventilators can effectively reduce the cost associated with ventilating a home. However, high indoor moisture levels, in conjunction with extreme temperature differences between the outdoor and indoor air can cause frost accumulation in the mechanical equipment, leading to performance degradation or failure. In this research, a demonstration house using a heat recovery ventilation system in Iqaluit, Nunavut, Canada was used to compare the performance of two frost control techniques: recirculation and electrical preheat. The advantages and disadvantages of each method are outlined to highlight the need to adapt southern strategies to ensure system functionality in the Arctic. The system was equipped with a heat recovery ventilator (HRV) with built-in recirculation technology to defrost the HRV, as well as two electric preheaters that can be used instead of recirculation and prevent frost formation. Between December 2018 and April 2019 the ventilation system’s performance was monitored for seven weeks while using either recirculation or electrical preheat. The experiments showed the ventilation system equipment consumed more absolute energy with electrical preheat than with recirculation as the frost control technique. However, when using recirculation, the ventilation system experienced more losses throughout the ventilation system, causing the whole building to consume more energy due to an increase in energy consumption by the home’s heating system. Moreover, the quantity of outdoor air that was restricted while using recirculation made electrical preheat the superior option for this ventilation system design. The energy use of the ventilation system with electric preheat enabled was 35% lower on a per volume of outdoor air basis. Contrary to some belief that preheating is a poor approach for frost control in heat/energy recovery ventilators, this research finds that preheating can be a more energy efficient method to provide ventilation if controlled well. Article in Journal/Newspaper Arctic Iqaluit Nunavut Unknown Arctic Canada Nunavut E3S Web of Conferences 246 11010 |
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envir archi Berquist Justin Banister Carsen Pellissier Mathieu Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation |
topic_facet |
envir archi |
description |
Air-to-air heat/energy recovery ventilators can effectively reduce the cost associated with ventilating a home. However, high indoor moisture levels, in conjunction with extreme temperature differences between the outdoor and indoor air can cause frost accumulation in the mechanical equipment, leading to performance degradation or failure. In this research, a demonstration house using a heat recovery ventilation system in Iqaluit, Nunavut, Canada was used to compare the performance of two frost control techniques: recirculation and electrical preheat. The advantages and disadvantages of each method are outlined to highlight the need to adapt southern strategies to ensure system functionality in the Arctic. The system was equipped with a heat recovery ventilator (HRV) with built-in recirculation technology to defrost the HRV, as well as two electric preheaters that can be used instead of recirculation and prevent frost formation. Between December 2018 and April 2019 the ventilation system’s performance was monitored for seven weeks while using either recirculation or electrical preheat. The experiments showed the ventilation system equipment consumed more absolute energy with electrical preheat than with recirculation as the frost control technique. However, when using recirculation, the ventilation system experienced more losses throughout the ventilation system, causing the whole building to consume more energy due to an increase in energy consumption by the home’s heating system. Moreover, the quantity of outdoor air that was restricted while using recirculation made electrical preheat the superior option for this ventilation system design. The energy use of the ventilation system with electric preheat enabled was 35% lower on a per volume of outdoor air basis. Contrary to some belief that preheating is a poor approach for frost control in heat/energy recovery ventilators, this research finds that preheating can be a more energy efficient method to provide ventilation if controlled well. |
format |
Article in Journal/Newspaper |
author |
Berquist Justin Banister Carsen Pellissier Mathieu |
author_facet |
Berquist Justin Banister Carsen Pellissier Mathieu |
author_sort |
Berquist Justin |
title |
Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation |
title_short |
Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation |
title_full |
Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation |
title_fullStr |
Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation |
title_full_unstemmed |
Comparison of Heat Recovery Ventilator Frost Control Techniques in the Canadian Arctic: Preheat and Recirculation |
title_sort |
comparison of heat recovery ventilator frost control techniques in the canadian arctic: preheat and recirculation |
publisher |
EDP Sciences |
publishDate |
2021 |
url |
https://doi.org/10.1051/e3sconf/202124611010 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_11010.pdf https://doaj.org/article/3df4952fd1b34a63aef69ef8d32469b6 |
geographic |
Arctic Canada Nunavut |
geographic_facet |
Arctic Canada Nunavut |
genre |
Arctic Iqaluit Nunavut |
genre_facet |
Arctic Iqaluit Nunavut |
op_source |
E3S Web of Conferences, Vol 246, p 11010 (2021) |
op_relation |
2267-1242 doi:10.1051/e3sconf/202124611010 https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/22/e3sconf_hvac2021_11010.pdf https://doaj.org/article/3df4952fd1b34a63aef69ef8d32469b6 |
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undefined |
op_doi |
https://doi.org/10.1051/e3sconf/202124611010 |
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E3S Web of Conferences |
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246 |
container_start_page |
11010 |
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