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

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 experimenta...

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Autores principales:	Hong-Seok Mun, Muhammad Ammar Dilawar, Dhanushka Rathnayake, Il-Byung Chung, Chong-Dae Kim, Sang-Bum Ryu, Kwang-Woo Park, Sang-Ro Lee, Chul-Ju Yang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	geothermal heat pump ammonia temperature–humidity index renewable energy source pigs Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/cb9e507e976c460b82c8610753affca7
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spelling	oai:doaj.org-article:cb9e507e976c460b82c8610753affca72021-11-25T16:37:57ZEffect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits10.3390/app1122107782076-3417https://doaj.org/article/cb9e507e976c460b82c8610753affca72021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10778https://doaj.org/toc/2076-3417This 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 (<i>p</i> < 0.05) than that of a house with a conventional cooling system. Similarly, the temperature–humidity index (THI) was significantly reduced (<i>p</i> < 0.05) in the GHP cooling system-connected pig house. Furthermore, the concentrations of ammonia (NH<sub>3</sub>) and hydrogen sulfide (H<sub>2</sub>S) were also decreased significantly in the GHP-installed pig house (<i>p</i> < 0.05). However, no differences were observed in the concentrations of particulate matter (PM<sub>2.5</sub>) and formaldehyde (<i>p</i> > 0.05). The pigs reared in the GHP-equipped pig house gained significantly more weight (<i>p</i> < 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.Hong-Seok MunMuhammad Ammar DilawarDhanushka RathnayakeIl-Byung ChungChong-Dae KimSang-Bum RyuKwang-Woo ParkSang-Ro LeeChul-Ju YangMDPI AGarticlegeothermal heat pumpammoniatemperature–humidity indexrenewable energy sourcepigsTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10778, p 10778 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	geothermal heat pump ammonia temperature–humidity index renewable energy source pigs Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	geothermal heat pump ammonia temperature–humidity index renewable energy source pigs Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Hong-Seok Mun Muhammad Ammar Dilawar Dhanushka Rathnayake Il-Byung Chung Chong-Dae Kim Sang-Bum Ryu Kwang-Woo Park Sang-Ro Lee Chul-Ju Yang Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits
description	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 (<i>p</i> < 0.05) than that of a house with a conventional cooling system. Similarly, the temperature–humidity index (THI) was significantly reduced (<i>p</i> < 0.05) in the GHP cooling system-connected pig house. Furthermore, the concentrations of ammonia (NH<sub>3</sub>) and hydrogen sulfide (H<sub>2</sub>S) were also decreased significantly in the GHP-installed pig house (<i>p</i> < 0.05). However, no differences were observed in the concentrations of particulate matter (PM<sub>2.5</sub>) and formaldehyde (<i>p</i> > 0.05). The pigs reared in the GHP-equipped pig house gained significantly more weight (<i>p</i> < 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.
format	article
author	Hong-Seok Mun Muhammad Ammar Dilawar Dhanushka Rathnayake Il-Byung Chung Chong-Dae Kim Sang-Bum Ryu Kwang-Woo Park Sang-Ro Lee Chul-Ju Yang
author_facet	Hong-Seok Mun Muhammad Ammar Dilawar Dhanushka Rathnayake Il-Byung Chung Chong-Dae Kim Sang-Bum Ryu Kwang-Woo Park Sang-Ro Lee Chul-Ju Yang
author_sort	Hong-Seok Mun
title	Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits
title_short	Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits
title_full	Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits
title_fullStr	Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits
title_full_unstemmed	Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits
title_sort	effect of a geothermal heat pump in cooling mode on the housing environment and swine productivity traits
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/cb9e507e976c460b82c8610753affca7
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Effect of a Geothermal Heat Pump in Cooling Mode on the Housing Environment and Swine Productivity Traits

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