Effect of a Sustainable Air Heat Pump System on Energy Efficiency, Housing Environment, and Productivity Traits in a Pig Farm

Myeong Gil Jeong, Dhanushka Rathnayake, Hong Seok Mun, Muhammad Ammar Dilawar, Kwang Woo Park, Sang Ro Lee and Chul Ju Yang
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Myeong Gil Jeong: Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea
Dhanushka Rathnayake: Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea
Hong Seok Mun: Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea
Muhammad Ammar Dilawar: Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea
Kwang Woo Park: WP Co., Ltd., Suncheon 58023, Korea
Sang Ro Lee: WP Co., Ltd., Suncheon 58023, Korea
Chul Ju Yang: Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea

Sustainability, 2020, vol. 12, issue 22, 1-13

Abstract: High electricity consumption, carbon dioxide (CO 2 ), and elevated noxious gas emission in the global livestock sector have a negative influence on environmental sustainability. This study examined the effects of a heating system using an air heat pump (AHP) on the energy saving, housing environment, and productivity traits of pigs. During the experimental period of 16 weeks, the internal temperature was found to be higher ( p < 0.05) in the AHP house than in the conventional house. Moreover, the average electricity consumption and CO 2 emission decreased by approximately 40 kWh and 19.32 kg, respectively, in the AHP house compared to the house with the conventional heating system. The average NH 3 and H 2 S emissions were significantly lower in the AHP house ( p < 0.05) during the growth stages. The AHP and conventional heating systems did not have a significant influence ( p > 0.05) on the average ultra-fine dust (PM 2.5 ) and formaldehyde level fluctuations. Furthermore, both heating systems did not show a significant difference in the average growth performance of pigs ( p > 0.05), but the weight gain tended to increase in the AHP house. In conclusion, the AHP system has great potential to reduce energy consumption, greenhouse gas (GHG) emissions, and noxious gas emissions by providing economic benefits and an eco-friendly renewable energy source.

Keywords: air heat pump; carbon dioxide; formaldehyde; electricity consumption; ultra-fine dust (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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