Authors: Jun-Gyu Kim, In-bok Lee, Rack-woo Kim, Uk-hyeon Yeo, Sang-yeon Lee, Se-Jun Park, Cristina Decano, Young-bae Choi, Jeong-hwa Cho, Hyo-hyeog Jeong
Identifier: CSBE21915
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Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » Regular Sessions

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Description: It is very important to maintain the optimum air quality in the piglet house. Ventilation is the main method to control the internal environment of the piglet house. In general, tracer-gas method experiments are conducted in the field to analyze the ventilation characteristics. However, there are many limitations to conduct the experiments with changing the ventilation condition in the piglet house. To overcome limitation and apply various experiment conditions, in this study, tracer-gas method experiment was conducted to analyze the ventilation efficiency on the testbed of smart welfare piglet house. Firstly, the tracer-gas decay curve was derived at 18 points inside the piglet room using tracer-gas method experiment. The local mean age and air supply effectiveness were estimated using the decay curves. Side slots and ceiling slots were analyzed as a representative ventilation type. The higher the ventilation rate, the lower the local mean age. However, the air supply effectiveness tended to be lowered, and it means that the ventilation efficiency does not come out as much as the set ventilation rate. The side slot was estimated to have lower local mean age near the airflow path, and the air supply effectiveness was low. The ceiling slots was estimated to have higher air supply effectiveness when the angle is 45 degrees. In this case, the uniformity in the room was improved and the variation of the calculated local mean age was reduced. Since the testbed has the advantage that the experiments can be performed throughout the year without any restrictions, it is possible to derive the proper ventilation operating condition according to the various environmental condition.

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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: Building & Materials

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Publication type: Presentation
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Coverage: Korea, Republic of (South Korea)
Language 1: en
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Rights: Canadian Society for Bioengineering
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