Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits

Applied Sciences

Muhammad Ammar Dilawar¹  Il-Byung Chung¹  Dhanushka Rathnayake¹  Chul-Ju Yang¹  Hong-Seok Mun¹  Sang-Bum Ryu²  Chong-Dae Kim³  Sang-Ro Lee⁴  Kwang-Woo Park⁴ 

[1] Animal Nutrition and Feed Science Laboratory, Department of Animal Science and Technology, Sunchon National University, Suncheon 57922, Korea;Department of Mechanical Convergence Engineering, Hanyang University, Seoul 04763, Korea;Interdisciplinary Program in IT-Bio Convergence System (BK21 plus), Sunchon National University, 255, Jungangno, Suncheon 57922, Korea;WP Co., Ltd., Suncheon 58023, Korea;

关键词: geothermal heat pump;    ammonia;    temperature–humidity index;    renewable energy source;    pigs;   

DOI  :  10.3390/app112210778

来源: DOAJ

【 摘 要 】

This study compared the effects of the cooling mode of a geothermal heat pump (GHP) system with those of a traditional cooling system (ventilation fans) inside a pig house on the internal house temperature, harmful gas emissions, and the growth performance of the pigs. During the 19-week experimental period, the temperature inside the house connected to the GHP cooling system was significantly lower (p < 0.05) than that of a house with a conventional cooling system. Similarly, the temperature–humidity index (THI) was significantly reduced (p < 0.05) in the GHP cooling system-connected pig house. Furthermore, the concentrations of ammonia (NH₃) and hydrogen sulfide (H₂S) were also decreased significantly in the GHP-installed pig house (p < 0.05). However, no differences were observed in the concentrations of particulate matter (PM_2.5) and formaldehyde (p > 0.05). The pigs reared in the GHP-equipped pig house gained significantly more weight (p < 0.05) by the end of the experiment. The GHP cooling system can therefore be implemented as a renewable, environmentally friendly energy source in pig farms for sustainable swine production without adversely affecting the productivity parameters.

【 授权许可】

Unknown