Establishing Criteria for Sidewall Air Inlet Performance and Evaluation of Four Commercial Inlets on This Criteria

Date
2000-01-01
Authors
Hoff, Steven
Wu, Cheng Gang
Hoff, Steven
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Agricultural and Biosystems Engineering
Abstract

Four commercially available sidewall air inlets and one sharp-edged rectangular opening were tested in a full-scale building section under similar isothermal conditions. Large differences were found between inlets for airjet spread, axial velocity decay, airjet throw, and entrainment ratio. A criterion was derived for evaluating inlets utilizing airjet throw, airjet spread, entrainment ratio, and animal-level velocity. The criterion developed highlighted some deficiencies of the commercially available inlets at a recommended building operating pressure of 12.4 Pa.

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This article is from Transactions of the ASAE 43, no. 3 (2000): 735–743.

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