scholarly journals Effect of heating system using a geothermal heat pump on the production performance and housing environment of broiler chickens

2012 ◽  
Vol 91 (2) ◽  
pp. 275-281 ◽  
Author(s):  
H.C. Choi ◽  
H.M. Salim ◽  
N. Akter ◽  
J.C. Na ◽  
H.K. Kang ◽  
...  
Keyword(s):  
Heat Pump ◽  
Broiler Chickens ◽  
Heating System ◽  
Production Performance ◽  
Geothermal Heat ◽  
Housing Environment ◽  
Geothermal Heat Pump

scholarly journals Effect of a Heating System Using a Ground Source Geothermal Heat Pump on Production Performance, Energy-Saving and Housing Environment of Pigs

Animals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2075
Author(s):  
Hong Seok Mun ◽  
Muhammad Ammar Dilawar ◽  
Myeong Gil Jeong ◽  
Dhanushka Rathnayake ◽  
Jun Sung Won ◽  
...  
Keyword(s):  
Heat Pump ◽  
Heating System ◽  
Production Performance ◽  
Conventional Heating ◽  
Geothermal System ◽  
Outlet Temperature ◽  
Geothermal Heat ◽  
Housing Environment ◽  
Ground Source ◽  
Geothermal Heat Pump

This study examined the effects of a heating system using a ground source geothermal heat pump (GHP). A GHP was installed in a pig house, and a comparative analysis was performed between the GHP and the control (conventional heating system) in terms of the production performance, housing environment, noxious gas emissions, electricity consumption, and economics. The geothermal system performance index, such as the coefficient of performance (COP), inlet, and outlet temperature, were also evaluated. The outflow temperature during each period (weaning, growing, and finishing) was significantly higher than the inflow temperature in all three components of the GHP system. Similarly, the average internal temperature of the GHP-connected pig house was increased (p < 0.05) during each period. The carbon dioxide (CO2) concentration, electricity usage, and cost of electricity during the 16-week experimental period were reduced significantly in the GHP system relative to the control. The concentrations of ammonia (NH3) during the growing and finishing period and the concentrations of formaldehyde during the weaning phase were also lower in the GHP-installed pig house (p < 0.05). These results indicate that the GHP system can be used as an environmentally friendly renewable energy source in pig houses for sustainable pig production without harming the growth performance.

scholarly journals The thermal behavior of a novel wall radiator panel coupled with horizontal ground source heat pump heating system: improve indoor environment to reduce the airborne transmission of infectious diseases

2020 ◽  
Vol 5 ◽  
pp. 11
Author(s):  
Sabrin Korichi ◽  
Bachir Bouchekima ◽  
Nabiha Naili ◽  
Messaouda Azzouzi
Keyword(s):  
Infectious Diseases ◽  
Thermal Comfort ◽  
Heat Pump ◽  
Heating System ◽  
The Novel ◽  
Ground Source Heat Pump ◽  
Radiation Heating ◽  
Geothermal Heat ◽  
Ground Source ◽  
Geothermal Heat Pump

Motivated by the rapid spread of the novel pandemic disease (COVID-19) that swept the most countries in the world, a new radiation heating system consists of wall radiator panel system connected to a reversible geothermal heat pump (GHP) coupled with horizontal ground heat exchanger (HGHX) was proposed as fast and permanent solution to the risks of the dispersion of airborne infectious diseases in air-conditioned enclosed spaces. An experimental system was installed and tested in the laboratory of thermal process of Research and Technology Center of Energy (CRTEn), Tunisia, in order to achieve the two main goals of this work: developing a new radiation heating system with quick and inexpensive implementation while ensuring high efficiency and environment-friendly performance for the entire system. The results obtained show that it is feasible to use the novel RPHs as heat rejecter of the horizontal ground source heat pump system (HGSHPs) for heating buildings with limited surface land areas epically those located in the Mediterranean regions such as Tunisia, the average performance coefficients of the geothermal heat pump COPhp and the overall system COPsys are found to be 6.3 and 3, respectively. The thermal comfort analysis indicates that there is only a small vertical temperature fluctuation in the test room that would not produce any negative effect on thermal comfort.

Comparing the Energetic and Exergetic Performances of a Building Heated by Solar Energy and Ground-Source (Geothermal) Heat Pump

2011 ◽  
Vol 347-353 ◽  
pp. 1801-1805
Author(s):  
Arif Hepbasli ◽  
Mustafa Tolga Balta ◽  
Zeyad Alsuhaibani
Keyword(s):  
Heat Pump ◽  
Heating System ◽  
Building Envelope ◽  
Geothermal Heat ◽  
Pump System ◽  
Sustainability Index ◽  
Dead State ◽  
Ground Source ◽  
Energy And Exergy ◽  
Geothermal Heat Pump

In this study, we considered a building, which had a volume of 336 m3 and a floor area of 120 m2, with indoor and outdoor air temperatures of 20 oC and 0 oC, respectively. For heating this building, we selected two options, namely (i) a ground-source (geothermal) heat pump system (Case 1), and (ii) a solar collector heating system (Case 2). We employed both energy and exergy analysis methods to assess their performances and compare them through energy and exergy efficiencies and sustainability index. We also investigated energy and exergy flows for this building and illustrated from the primary energy transformation through the heat production system and a distribution system to a heating system, and from there, via the indoor air, across the building envelope to the surrounding air. We calculated that the total exergy efficiencies for Cases 1 and 2 were 4.7%, and 26.1% while sustainability index values for both cases were 1.049 and 1.353 at a reference (dead) state temperature of 0 oC, respectively.

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

2021 ◽  
Vol 11 (22) ◽  
pp. 10778
Author(s):  
Hong-Seok Mun ◽  
Muhammad Ammar Dilawar ◽  
Dhanushka Rathnayake ◽  
Il-Byung Chung ◽  
Chong-Dae Kim ◽  
...  
Keyword(s):  
Heat Pump ◽  
Cooling System ◽  
Experimental Period ◽  
Swine Production ◽  
Cooling Mode ◽  
Geothermal Heat ◽  
Housing Environment ◽  
Geothermal Heat Pump ◽  
Humidity Index ◽  
Conventional Cooling

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 (PM2.5) 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.

517 Geothermal Heat Pump Heating System : Analysis of energy balances

2009 ◽  
Vol 2009.48 (0) ◽  
pp. 169-170
Author(s):  
Tomohiro YOSHIKAWA ◽  
Masahumi SASAKI ◽  
Noboru ENDOH ◽  
Ko WATANABE
Keyword(s):  
Heat Pump ◽  
System Analysis ◽  
Heating System ◽  
Geothermal Heat ◽  
Geothermal Heat Pump ◽  
Energy Balances

Some Villas Solar Heating and Air Conditioning System Design of Double-Source Heat Pump Programmer

2012 ◽  
Vol 512-515 ◽  
pp. 168-171
Author(s):  
Wei Yu ◽  
Feng Chen ◽  
Hong Bo Li
Keyword(s):  
Energy Saving ◽  
Heat Pump ◽  
Air Conditioning ◽  
Heating System ◽  
Time Sharing ◽  
Geothermal Heat ◽  
Air Conditioning System ◽  
Geothermal Heat Pump ◽  
Air Conditioning Systems ◽  
Building Heat

This article on a villas in Langfang city, Hebei province, heating and air conditioning systems. According to the owners of the double requirement of energy saving and environmental protection to owners selection of solar energy and geothermal heat pump heating system combined. To better achieve heating and air conditioning energy saving operation of villas, the system can be run by optimizing the control scheme, time-sharing partition building heat adjustment.

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