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Description: Traditional automatically controlled naturally ventilated (ACNV) barns for pigs in North America have had continuous ridge openings with widths ranging from 150 to 600 mm. This studyevaluated the use of much smaller ridge opening widths of 6 and 20 mm (ridge opening to floor area ratios of 1:2160 and 1:650 respectively). Equivalent intermittent small openings could be less costly to construct. Inside temperature and humidity distributions weremonitored during cold weather.Test results indicated that very satisfactory performance in terms of inside temperatures and humidities near pig level (1.5 m height) were obtained usingeither the 6 or 20 mm wide ridge opening.However high relative humidities near the ridge became a concern with the 6 mm opening.
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Citation: J.A. Munroe and Y. Choiniere 1993. MINIMUM RIDGE OPENING WIDTHS FOR ANATURALLY VENTILATED SWINE BARN UNDER COLD WEATHER CONDITIONS. Canadian Agricultural Engineering 35(2):141-146.
Volume: 35
Issue: 2
Pages -
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Date: 1993
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Type: Text.Article
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Coverage: Canada
Language 1: en
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Rights: Canadian Society for Bioengineering
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