Ground-source heat pump systems
Analysis of Ground Source Heat Pump Systems in Residential Buildings
... Keywords: ground source heat pump, residential buildings, energy analysis, emissions, economic analysis ABSTRACT The aim of this paper is to analyze the energy, environmental, and economic ...
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Update on Maintenance and Service Costs of Commercial Building Ground-Source Heat Pump Systems
... The ground-source heat pump systems had been installed as many as 24 years earlier, with one system completing only its first year of ...individual heat pumps in the 38 ...
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Ground-Source Heat Pump Systems in NORWAY
... Innen IEA Heat Pump Programme er det startet opp et internasjonalt prosjekt (Annex 29) med tema grunnvarmebaserte varmepumpesystemer. Hensikten med prosjektet er å utvikle mer kostnads- og energieffektive ...
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Enhancement of heat transfer for ground source heat pump systems
... of ground heat source is ...of heat source which would necessitate an emergency stop of the ...the heat medium will be frozen and the system might have to wait for the warmer ...
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Coefficient of Performance Stabilisation in Ground Source Heat Pump Systems
... In this work a new numerical heat transport model in horizontal heat exchanger was described. Work begins from the theory concerning the construction of a one dimension fluid-thermal finite element. In ...
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On Sustainable and Efficient Design of Ground-Source Heat Pump Systems
... geothermal source, corresponding to the best synergy among GSHP unit and back-up generators, can be shown by means of a simple test ...the ground source (control ...
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Parametric Study of Vertical Ground Loop Heat Exchangers for Ground Source Heat Pump Systems
... convective heat transfer coefficient, h, for the fluid along the full length of the U-tube pipe was computed as a part of simulation and was found to be 1779 W/m 2 ...typical heat transfer coefficient ...
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Analysis on the Performance of Ground Heat Exchangers in Ground Source Heat Pump Systems based on Heat Transfer Enhancements
... The heat exchange pipes area raised 20%, leading to the thermal resistance inside the borehole reduce about ...the heat transfer pipe area could reduce thermal resistance inside the borehole of GHE ...
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A Buyer s Guide for Residential Ground Source Heat Pump Systems
... A large part of the cost of energy supplied to your home is the expense of getting it there. Electric transmission lines, gas lines and oil pipelines are costly to build and require extensive rights-of-way. Oil is ...
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Ground Source Heat Pump Systems in Canada: Economics and GHG Reduction Potential
... Assumptions underlying this method include that provinces will continue to remain net importers of electricity or that the rate of shifting to GSHP and retrofitting electrically heated homes exceeds the number of homes ...
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Initial geological considerations before installing ground source heat pump systems
... Groundwater conditions can affect the efficiency of a closed loop system, particularly as the thermal properties of unconsolidated sediments and rock are dependent upon the level of saturation. Low permeability rocks ...
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Damage event analysis of vertical ground source heat pump systems in Germany
... To identify the cause of damage, the LGRB made several exploration drillings. Similar to the case of Staufen, inflow of groundwater into an anhydrite-bearing layer had caused the uplifts. The swellable anhydrite layers ...
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High efficiency ground source heat pump systems for sustainable building space conditioning
... To guarantee a significant impact on the national load diagram, load management should be ensured by controlling the loads in a centralized way. In Portugal, thermal comfort only became a requirement for users since a ...
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Scanning PIV Method and Its Application to the Calorimetry of Ground Source Heat Pump Systems
... However, it is difficult to evaluate the flow rate by measuring the flow velocity distribution at the outlet of the indoor unit. In this study, the Scanning PIV method is proposed to improve the accuracy of the flow rate ...
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Design and simulation tool for ground source heat pump systems considering groundwater advection
... from heat injection/extraction into/from ground heat exchangers (GHEXs) with hourly variation is one of the most noteworthy challenges to address when simulating and designing a ground ...
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Deep Boreholes for Ground Source Heat Pump Systems Scandinavian Experience and Future Prospects
... During heat extraction, the heat transfer fluid will increase in temperature as it travels from top to bottom, and will be warmest at the ...rejecting heat to the ...
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Sustainable design of ground-source heat pump systems: optimization of operative life performances
... energy systems, the ever-increasing demand of high-efficiency solutions, low production cost and strict environmental regulation have prompted operators to look for alternative sizing and control approaches in ...
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Performance Investigation of Multiple-Tube Ground Heat Exchangers for Ground-Source Heat Pump
... energy source is categorized based on ASHRAE [1] for using in high-temperature electric power production; > 150 ο C, intermediate and low–temperature direct-use applications; < 150 ο C, and ...
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How To Test The Performance Of A Ground Source Heat Pump
... the heat pump system [16] (Şekil ...circulation pump in solar collectors or ground heat exchanger were ...intended heat, working heat pump either with solar or ...
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Energy Efficiency Technologies Air Source Heat Pump vs. Ground Source Heat Pump
... air source or ground source heat pump, they are far more efficient, environmental friendly than conventional heating/cooling ...depletion, heat pumps are one of the most ...
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