강제 환기식 육계사 내부 열환경 균일성 평가
Internal Thermal Environment Uniformity Analysis of Mechanically Ventilated Broiler House
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초록
Livestock industry in Korea has been growing rapidly and has reached 23 trillion Korean won in 2021. This study focuses on broiler, which is oneof the largest sectors in livestock industry. As the effects of climate change get more serious, primary industry such as livestock industry is fragileto climate change since it directly interacts with nature. Therefore, maintaining suitable rearing environment is important. One of the most frequentlyused ventilation type for controlling the rearing environment of broiler house, tunnel ventilation, causes frequent air velocity fluctuation which makesmaintaining the rearing environment important. By measuring the air temperature, relative humidity and air velocity in various points inside the broilerhouse, the internal thermal environment uniformity was analyzed according to length, width and zone. The experimental house was found to have deadzone with high air temperature, relative humidity and low air velocity near the end of the inlet and at the end of the broiler house. By using heatstress index to analyze quantitatively, zone with highest heat stress index was found to increase by 7.55% compared to the lowest zone. As a result,to maintain uniform rearing environment inside the broiler house, different factors must be measured and analyzed and used to operate the environmentalcontrol facilities.
Abstract
Livestock industry in Korea has been growing rapidly and has reached 23 trillion Korean won in 2021. This study focuses on broiler, which is oneof the largest sectors in livestock industry. As the effects of climate change get more serious, primary industry such as livestock industry is fragileto climate change since it directly interacts with nature. Therefore, maintaining suitable rearing environment is important. One of the most frequentlyused ventilation type for controlling the rearing environment of broiler house, tunnel ventilation, causes frequent air velocity fluctuation which makesmaintaining the rearing environment important. By measuring the air temperature, relative humidity and air velocity in various points inside the broilerhouse, the internal thermal environment uniformity was analyzed according to length, width and zone. The experimental house was found to have deadzone with high air temperature, relative humidity and low air velocity near the end of the inlet and at the end of the broiler house. By using heatstress index to analyze quantitatively, zone with highest heat stress index was found to increase by 7.55% compared to the lowest zone. As a result,to maintain uniform rearing environment inside the broiler house, different factors must be measured and analyzed and used to operate the environmentalcontrol facilities.
참고문헌 (22)
- Korea Rural Economic Institute, "Agricultural outlook 2022 Korea", ~ (2022)
- IPCC, "Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change" (2013), Cambridge University Press
- Korean 109years (1912∼2020) climate change analysis report, "Korea Meteorological Administration", ~ (2021)
- 공현석, "기후변화가 축산업에 미치는 경제효과", 농업경영.정책연구, 47(2), pp.312~332 (2020), 한국농식품정책학회[DOI]
- Kwon, G. S., "Ways to prevent intense heat damage-chicken environment management to prevent intense heat damage in summer season", Korean Poultry Journal, 52(6), pp.124~127 (2020)
- Korean Abnormal climate report 2018, "Korea Meteorological Administration", ~ (2018)
- Korean Abnormal climate report 2021, "Korea Meteorological Administration", ~ (2021)
- 하주완, "실측 및 모델베이스 계산을 통한 계사의 온열환경파악 및 THI 예측식 개발", 한국건축친환경설비학회 논문집, 14(2), pp.208~219 (2020), 한국건축친환경설비학회[DOI]
- Curi, T. M. R. D. C., "Computational fluid dynamics(CFD)application for ventilation studies in broiler houses", Journal of the Brazilian Association of Agricultural Engineering, 37(1), pp.1~12 (2017)[DOI]
- Bianchi, B., "Microclimate measuring and fluid"dynamic simulation in an industiral boriler house : Testing of an experimental ventilation system", Veterinaria Italiana, 51(2), pp.85~92 (2015)[DOI]
- J. Seedorf, "Temperature and Moisture Conditions in Livestock Buildings in Northern Europe", Journal of Agricultural Engineering Research, 70(1), pp.49~57 (1998), Elsevier BV[DOI]
- In-Bok Lee, "STUDY OF INTERNAL CLIMATE OF NATURALLY AND MECHANICALLY VENTILATED BROILER HOUSES", The Society for Engineering in Agriculture, Food, and Biological Systems (2003), American Society of Agricultural and Biological Engineers
- 권경석, "BES 수치모델을 이용한 사육 밀도별 가금류 고온 스트레스 평가", 한국산학기술학회논문지, 20(1), pp.456~463 (2019), 한국산학기술학회[DOI]
- 하태환, "하절기 자돈 고온 스트레스 평가를 위한 THI 지수 모의", 한국농공학회논문집, 60(4), pp.113~122 (2018), 한국농공학회[DOI]
- National Institute of animal Science, RDA, "Korean Feeding Standards for Poultry" (2016), Sang-rok-sa
- Gwanyong Park, "Ventilation rate formula for mechanically ventilated broiler houses considering aerodynamics and ventilation operating conditions", Biosystems Engineering, 175, pp.82~95 (2018), Elsevier BV[DOI]
- National Research Council, "A guide to environmental research on animals. National Academies of Science", National Research Council (U.S.)Committee on physiological effects of environmental factors on animals), ~ (1971)
- University of Nebraska Report for Northeast Regional Poultry Project NE-127, "DeShazer, J. A.", Lincoln Agricultural Research, ~ (1988)
- Xiuping Tao, "Temperature-Humidity-Velocity Index for Market-size Broilers", The Society for Engineering in Agriculture, Food, and Biological Systems (2003), American Society of Agricultural and Biological Engineers
- H. J. Chepete, "PRODUCTION PERFORMANCE AND TEMPERATURE-HUMIDITY INDEX OF COBB 500 BROILERS REARED IN OPEN-SIDED NATURALLY VENTILATED HOUSES IN BOTSWANA", Livestock Environment VII –Proceedings of the Seventh International Symposium (2005), American Society of Agricultural and Biological Engineers
- Moraes, S. R. P., "Classification of the temperature and humidity index(THI), aptitude of the region, and conditions of comfort for broilers and layer hens in Brazil", XXXVII Brazilian Congress of Agricultural Engineering, International Livestock Environment Symposium-ILES VIII (2008)
- X. Tao, "ACUTE SYNERGISTIC EFFECTS OF AIR TEMPERATURE, HUMIDITY, AND VELOCITY ON HOMEOSTASIS OF MARKETSIZE BROILERS", Transactions of the ASAE, 46(2) (2003), American Society of Agricultural and Biological Engineers (ASABE)[DOI]