Ventilation Design for a Chick Incubator Using Computational Fluid Dynamics

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概要

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• We used aerodynamic technology to develop a ventilation system for a prototype chick incubator. We used computational fluid dynamics (CFD) to analyze the internal airflow and distribution of air within the incubator. We used local mean age (LMA) and local mean residual time (LMR) theory to examine the accuracy of the CFD model and to quantify the ventilation efficiency. The largest CFD error was only -3.5%, proving the reliability of the model for studying the ventilation efficiency of the incubator. We also compared the total mass flow rates of the inlet and outlet slots and examined the mass balance of the CFD model. The comparison showed an error of -0.8% at a ventilation rate of 100% and -1.2% at 50%. The CFD results show that the ventilation system improved the ventilation efficiency of the chick incubator. The incoming fresh air was evenly supplied to all cages via a duct and a diffuser installed in the central passageway, and contaminated air was exhausted through the outlet system before being diffused to the cages. The sizes of the inlet and outlet slots were very important in improving the uniformity of ventilation. The angle of the diffuser installed in the ceiling inlet was also critically important in maintaining a uniform air pressure and airflow at the inlet slots.

• 独立行政法人　国際農林水産業研究センターの論文

著者

• Lee In-bok

  Department Of Bio-systems Engineering Seoul National University

• KWON Soon-Hong

  College of Natural Resource and Life Sciences, Pusan National University

• SASE Sadanori

  Department of Agricultural Environment Engineering, National Institute for Rural Engineering

• SASE Sadanori

  Department of Rural Technologies, National Institute for Rural Engineering, National Agriculture and Food Research Organization

• HAN Hwa-taek

  School of Mechanical and Automotive Engineering, Kook Min University

• HONG Hi-ki

  School of Mechanical and Industrial System Engineering, Kyung Hee University

• SUNG Si-heung

  Department of Biosystems Engineering, Konkuk University

• HWANG Hyun-sub

  Department of Rural Systems Engineering, Seoul National University

• HONG Se-woon

  Department of Rural Systems Engineering, Seoul National University

• SEO Il-hwan

  Department of Rural Systems Engineering, Seoul National University

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• Ventilation Design for a Chick Incubator Using Computational Fluid Dynamics

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