Results 51 to 60 of about 204,167 (205)
NUMERICAL AND EXPERIMENTAL ANALYSIS OF UNSTEADY WORK OF U-SHAPE BOREHOLE HEAT EXCHANGER
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2014 Unsteady numerical model of borehole heat exchanger heat regime was developed. General numerical modeling results are borehole heat flux, heat carrier inlet temperature and average soil temperature distribution.
S. A. Filatau
doaj
Transfer of Low-Potential Heat from a Deep Borehole by Means of a Heat Pipe and Heat Pump
Communications, 2012 The paper presents a design of equipment for the usage of low-potential heat collected from rock in a deep borehole by means of heat pipes (HP) and a description of its realization.
Milan Malcho +4 more
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Regression Analysis on Heat Transfer of U-tube BHE in Ground Coupled Heat Pump
Zhileng xuebao, 2010 In this paper,the numerical simulation is performed on the basis of the model describing heat transfer for single U-tube BHE(Borehole Heat Exchanger),and a single regression analysis and a multiple regression analysis on the heat exchange rate are ...
Chen Xu Fan Rui Long Weiding Ma Hongquan
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Methods of grout quality measurement in borehole exchangers for heat pumps and their rehabilitation
Geothermal EnergyMethods and instrumentation for measuring grout quality in heat pump boreholes, including the measurement of groundwater flow through boreholes outside partly grouted borehole exchanger pipes, have been developed in the Czech Republic.
Petr Nakládal +3 more
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Performance evaluation on the factors affecting the heat extraction performance of deep coaxial borehole heat exchanger [PDF]
E3S Web of ConferencesGeothermal energy has the characteristics of stability, efficiency, and abundant reserves. Fully developing and utilizing geothermal energy is of great significance for achieving the “dual carbon” goal.
Hu Jian +4 more
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, 2021 This paper aims at proposing fast and plain design tools to evaluate the best energy application for deep borehole heat exchangers, exploiting geothermal resources. Exergy efficiency has been chosen as a performance index.
C. Alimonti, P. Conti, E. Soldo
semanticscholar +1 more source
Numerical Simulation of Nanofluid Suspensions in a Geothermal Heat Exchanger
Energies, 2018 It has been shown that using nanofluids as heat carrier fluids enhances the conductive and convective heat transfer of geothermal heat exchangers. In this paper, we study the stability of nanofluids in a geothermal exchanger by numerically simulating ...
Xiao-Hui Sun +4 more
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IMPACT OF GEOTHERMAL GRADIENT ON GROUND SOURCE HEAT PUMP SYSTEM MODELING
Rudarsko-geološko-naftni Zbornik, 2014 ndisturbed ground temperature is one of the most crucial thermogeological parameters needed for shallow geothermal resources assessment. Energy considered to be geothermal is energy stored in the ground at depths where solar radiation has no effect.
Tomislav Kurevija +2 more
doaj
Heat Calculation of Borehole Heat Exchangers
Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2013 The paper considers a heat calculation method of borehole heat exchangers (BHE) which can be used for designing and optimization of their design values and included in a comprehensive mathematical model of heat supply system with a heat pump based on utilization of low-grade heat from the ground.The developed method of calculation is based on the ...
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Near Field Investigation of Borehole Heat Exchangers
, 2015 As an alternative and renewable energy source, the shallow geothermal energy evolving as one of the most popular energy source due to its easy accessibility and availability worldwide, and the ground source heat pump (GSHP) systems are the most frequent applications for extracting the energy from the shallow subsurface.
Erol, Selçuk, Francois, Bertrand
openaire +3 more sources