An Investigation of the Contribution of Solar Energy in Heating Greenhouses in Quebec

[+] Author and Article Information
T. A. Lawand

Field Operations, Brace Research Institute, Macdonald College of McGill University, Quebec, Canada

M. A. S. Malik, R. Alward, P. Hopley

Brace Research Institute, Macdonald College of McGill University, Quebec, Canada

J. Eng. Power 95(2), 114-118 (Apr 01, 1973) (5 pages) doi:10.1115/1.3445696 History: Received July 31, 1972; Online July 14, 2010


An experimental study on a commercial greenhouse in Montréal, Québec, was undertaken during the winter season, October 1971–April 1972. The object of the study was to determine the percentage of the heat load that is provided by solar energy during the winter season. It was found that the monthly average of solar energy thermal contribution varied from 13 to 54 percent, the rest of the heating load was, of course, supplied from a conventional fuel-fired furnace. It was seen that during the coldest part of the winter in Montréal the solar energy contributed very little toward the heating of the greenhouse and its main function was confined to that of triggering photosynthesis. It appears that there is a definite need of redesigning greenhouse structures in Québec such that the solar energy would play a larger role in heating them. This is necessitated because there is a need both to reduce the heating expenses and conserve fuel resources. The average cost of heating was found to be of the order of $5.00 per square meter of greenhouse.

Copyright © 1973 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In