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Project Leaders
Iain Macdonald
Phone: 613-993-9676
Fax: 613-954-3733
Email: Iain.Macdonald@nrc-cnrc.gc.ca
Boualem Ouazia
Phone: 613-993-9613
Fax: 613-954-3733
Email: Boualem.Ouazia@nrc-cnrc.gc.ca
Energy-Efficient Hybrid Ventilation Systems for Residential Buildings
Objectives
- Conduct an extensive review of the scientific and product literature concerning hybrid ventilation systems, which combine natural (or passive) and mechanical ventilation.
- Determine the range of residential ventilation systems and strategies in use in Canadian housing.
- Conduct a comparative study between ventilation options.
NRC Two-Storey Research House - front
Background
Hybrid ventilation systems are two-mode systems using various features of both passive and mechanical systems at different times of the day or season. Generally, they take advantage of natural ventilation when it is sufficient and supplement it as necessary with mechanical ventilation. The challenge is to do this in an energy-efficient way while avoiding the typical disadvantages of natural ventilation - cold drafts and excessive ventilation in winter and inadequate ventilation in summer and shoulder seasons.
Statement of Work
- Reviewed and compiled available information on residential hybrid ventilation systems.
-
Evaluated, using NRC-IRC's two-storey Ventilation and Wall Research House, the performance of passive, mechanical and hybrid systems in terms of energy, indoor air quality, ventilation rate and air distribution.
Outcomes
The following were delivered to the Partners:
- Literature review: Hybrid Ventilation for Residential Buildings
- Report on assessment of natural ventilation for Canadian residential buildings
- Reports on single-zone tracer gas measurements - air change rate
-
Report on blower door depressurization test
Partners
- Panel on Energy Research and Development (PERD)
- Natural Resources Canada
- Canada Mortgage and Housing Corporation
Start/Completion Dates
This project began in 2004 and was completed in 2008.
Publications
Ventilation and wall research house
Maref, W. Ouazia, B. Reardon, J.T. Rousseau, M.Z.
Performance of Exterior Envelope of Whole Buildings X Conference (Clearwater, Florida, 2007-12-01)
pp. 1-8. 2007-12-01
[Full citation / Référence complète]
Comparison of the performance of a forced-air and a radiant floor residential heating system connected to solar collectors
Haddad, K. Purdy, J. Laouadi, A.
Journal of Solar Energy Engineering,
pp. 468-472. 2007-11-01
[Full citation / Référence complète]
Heating and ventilating research at NRC-IRC
Saint-Martin, L.
Home Builder, 20 (5)
pp. 24. 2007-09-01
[Full citation / Référence complète]
Hybrid ventilation
Ouazia, B. Reardon, J.T. Booth, D.G. Nong, G. Macdonald, I.A.
Construction Innovation, 11 (4)
pp. 4, 9. 2006-12-01
[Full citation / Référence complète]
Hybrid ventilation research for houses
Reardon, J.T. Ouazia, B.
Solplan Review, (130)
pp. 18-19. 2006-09-01
[Full citation / Référence complète]
