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Description: This paper is concerned with the design of ventilation inlets for animal housing. A relationship is established between the Archimedes number, which has been proposed as a criterion for establishing inlet jet trajectories, and momentum numbers, which have been proposed as criteria for establishing adequate mixing of ventilation and room air. Experimental results are presented in which temperature variations within a room are used as a measure of air mixing. These results show that there is an optimum, rather than a minimum, jet momentum for air mixing. An Archimedes number of approximately five, based on room air temperatures, gave good mixing and satisfactory jet trajectories with all the inlet configurations investigated. More work is required to extend these results to larger rooms.
Keywords: air mixing in a mechanically ventilated room
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Citation: Leonard, J.J. and J.B McQuitty 1988. AIR MIXING IN A MECHANICALLY VENTILATED ROOM. Canadian Agricultural Engineering 30(1):185-190.
Volume: 30
Issue: 1
Pages 185 - 190
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Date: 1988
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Coverage: Canada
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