Evaluation of a ground source geothermal heat pump to save energy and reduce CO 2 and noxious gas emissions in a pig house

Islam, Md. Manirul; Mun, Hong-Seok; Bostami, A. B. M. Rubayet; Ahmed, Sonia Tabasum; Park, Keum-Joo; Yang, Chul-Ju

doi:10.1016/j.enbuild.2015.11.057

Cited by 39 publications

(22 citation statements)

References 27 publications

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“…The avoidance of CO 2 emissions by using heat pumps is confirmed by Islam et al [33]. These authors also report that in their experiment other emissions (ammonia, hydrogen sulfide, sulfur dioxide) besides CO 2 were also significantly reduced.…”

Section: Substitution Potential Power Of Fossil Energy and A Contribusupporting

confidence: 52%

“…In agriculture, heat pumps are used, for example, to dry medicinal plants [26] or to heat greenhouses [27,28]. Not too many publications deal with the use of heat pumps for heating animal stables [17,[29][30][31][32][33][34][35][36]. While Manolakos et al [32] developed a model for a system, which uses heat pumps in a HVAC (heating, ventilation, and air conditioning) system for precise environment control in broiler houses (cf.…”

Section: Introductionmentioning

confidence: 99%

“…While Manolakos et al [32] developed a model for a system, which uses heat pumps in a HVAC (heating, ventilation, and air conditioning) system for precise environment control in broiler houses (cf. [37]), only five of these publications [29,31,33,34,36] report on practical experiments with heat pump systems. The present study should help to close this gap.…”

Section: Introductionmentioning

confidence: 99%

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Energy Efficiency of a Heat Pump System: Case Study in Two Pig Houses

Licharz

Rösmann²,

Krommweh

et al. 2020

Energies

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This study describes a 70-day investigation of three identical groundwater heat pumps (GWHP) for heating two pig houses located on the same farm in West Germany. Two of the three GWHPs were installed in a piglet-rearing barn, the third in a farrowing barn. All three heat pumps were fed from the same extraction well. The aim of this study was firstly the empirical performance measurement of the GWHP systems and secondly the energetic evaluation of the systems on barn level by calculating the coefficient of performance (COP). Three different assessment limits were considered in order to better identify factors influencing the COP. In total, the heat pumps supplied thermal energy of 47,160 kWh (piglet-rearing barn) and 36,500 kWh (farrowing barn). Depending on the assessment limit considered, the COP in piglet-rearing barn and farrowing barn ranged between 2.6–3.4 and 2.5–3.0, respectively. A significant factor influencing the COP is the amount of electrical current required to operate the groundwater feeding pump. The average groundwater flow rate was 168.4 m3 d−1 (piglet-rearing barn) and 99.1 m3 d−1 (farrowing barn). In conclusion, by using energy from groundwater, GWHPs have the potential to substitute fossil fuels, thus saving them and avoiding CO2 emissions.

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Section: Substitution Potential Power Of Fossil Energy and A Contribusupporting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Energy Efficiency of a Heat Pump System: Case Study in Two Pig Houses

Licharz

Rösmann²,

Krommweh

et al. 2020

Energies

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“…Theoretical and experimental researches were carried out throughout previous years to expand a firm base for the performance and design assessment of BHE systems . A usual BHE‐ setting up is demonstrated through Figure .…”

Section: Status Of Gshp Technologymentioning

confidence: 99%

“…100 m [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Theoretical and experimental researches were carried out throughout previous years to expand a firm base for the performance and design assessment of BHE systems [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23]. A usual BHE-setting up is demonstrated through Figure 1.…”

Section: Status Of Gshp Technologymentioning

confidence: 99%

Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review

Ahmadi

Sadaghiani

et al. 2017

Env Prog and Sustain Energy

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Owing to the eye‐catching pros of high energy and environmental performances, numerous ground‐source heat pump (GSHP) systems have been employed in domestic and industrial buildings throughout the world. One of the proved renewable energy technologies is the GSHPs which is able to fulfill the gap between cooling and heating. The main contribution of this article is to present a fully description and critical review of the GSHP systems along with their current developments. At first, the energy efficiency and working standard of a heat pump are introduced. Furthermore, an expansive description of the GSHPs and its advances, and a fully explanation of the ground‐couplet (GCHP) heat pumps, ground‐water (GWHP), and surface water (SWHP) are provided. The mainly representative ground thermal response examination approaches and simulation for the vertical ground heat exchangers presently existing are reviewed counting the heat transfer progressions inside and outside the holes. Similarly, various info regarding a different GWHP by a heat exchanger with different structures, and the opportunity to gain the enhanced energy efficiency with joint cooling and heating using GCHP are explained. The numerous hybrid GCHP systems for heating or cooling‐dominated constructions are appropriately illustrated. It can be deduced that the GSHP technology can be employed both in hot and cold weather areas and the potential of energy saving is noteworthy. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1241–1265, 2018

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Numerical study on the effects of design parameters on the heat transfer performance of coaxial deep borehole heat exchanger

et al. 2019

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Summary Deep borehole heat exchanger (DBHE) is attracting attention intensively owing to much more geothermal extraction, higher efficiency for heat pumps, and lesser land demand compared with shallow borehole heat exchanger. DBHE is usually dipped into several thousand meters in the subsurface, having a complicated heat transfer with surrounding rock–soil. However, the heat transfer characteristics below surface under different conditions are rarely studied. In this study, a numerical model considering the comprehensive effects of geothermal gradients and heat loss from inner pipe was proposed. The model was validated with experimental data and Beier analytical solution. Based on the model, the effects of primary design parameters on the heat transfer performance below surface along the pipe were investigated. The results indicate that temperature at pipe bottom increases with inlet flow rate decreasing, while the heat load cannot be extracted fully to the surface because of the heat loss of inner pipe. When the inlet flow rates decrease from 41.39 to 4.52 m3/h, the heat loss ratio increases from 25.5% to 63.7%. It is an effective way of insulating inner pipe to reduce heat loss under low inlet flow rates. Increasing the velocity in inner pipe by lessening the inner pipe diameter can also decline the heat loss well. While by this way, the increasing pumping power resulting from the higher velocity in inner pipe has to be considered. This study is significant to effective optimization of DBHE and energy conservation of buildings.

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Evaluation of a ground source geothermal heat pump to save energy and reduce CO 2 and noxious gas emissions in a pig house

Cited by 39 publications

References 27 publications

Energy Efficiency of a Heat Pump System: Case Study in Two Pig Houses

Energy Efficiency of a Heat Pump System: Case Study in Two Pig Houses

Ground source heat pump carbon emissions and ground‐source heat pump systems for heating and cooling of buildings: A review

Numerical study on the effects of design parameters on the heat transfer performance of coaxial deep borehole heat exchanger

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