Analysis of effective thermal conductivity stability of geothermal heat exchanger according to ambient environmental conditions
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Energy Research"
DOI: 10.1002/er.4733
Abstract: At present, geothermal energy is a promising research area but still has numerous areas to be explored. The thermal performance verification of Uâshaped closed geothermal heat exchange was proposed to improve the effective thermal conductivity… read more here.
Keywords: thermal conductivity; heat; effective thermal; heat exchanger ... See more keywords
Measurement and modelling of the ground temperature profile in Zarqa, Jordan for geothermal heat pump applications
Sign Up to like & getrecommendations! Published in 2017 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2017.05.107
Abstract: Abstract The use of Geothermal Heat Pumps (GHP) for cooling and heating applications is still to be assessed in Jordan. As a first step in the assessment of the technical and economic feasibility of GHP… read more here.
Keywords: ground; temperature; geothermal heat; heat pump ... See more keywords
Cooling mode experimental analysis of a direct expansion geothermal heat pump with a control depending on the discharge pressure
Sign Up to like & getrecommendations! Published in 2019 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2019.113955
Abstract: Abstract This work presents an experimental study of a direct expansion geothermal heat pump in cooling mode. The three geothermal loops are installed in parallel. To improve the system performance, a specific control depending on… read more here.
Keywords: geothermal heat; heat pump; heat; control ... See more keywords
Optimization and energy assessment of geothermal heat exchangers for different circulating fluids
Sign Up to like & getrecommendations! Published in 2021 at "Energy Conversion and Management"
DOI: 10.1016/j.enconman.2020.113733
Abstract: Abstract One significant obstacle to the adoption of geothermal heat pump (GHP) technology is the installation costs of geothermal heat exchangers (GHE). Cost reduction through optimization of system parameter offers the potential for increased applications.… read more here.
Keywords: geothermal heat; energy; circulating fluids; different circulating ... See more keywords
Step-wise algorithm for estimating multi-parameter of the ground and geothermal heat exchangers from thermal response tests
Sign Up to like & getrecommendations! Published in 2020 at "Renewable Energy"
DOI: 10.1016/j.renene.2019.12.140
Abstract: Abstract This paper proposes an innovative algorithm using the idea of step-wise to estimate of multiple parameters of the shallow ground and U-shaped geothermal heat exchangers. This procedure uses an infinite composite-medium line-source solution. The… read more here.
Keywords: wise algorithm; ground; geothermal heat; step ... See more keywords
Electrical Conductivity Versus Temperature in Freezing Conditions: A Field Experiment Using a Basket Geothermal Heat Exchanger
Sign Up to like & getrecommendations! Published in 2019 at "Geophysical Research Letters"
DOI: 10.1029/2019gl084962
Abstract: We use a basket geothermal heat exchanger during 518 hr to freeze a portion of soil. This field experiment is monitored using time lapse electrical conductivity tomography and a set of 47 in situ temperature… read more here.
Keywords: geothermal heat; field; basket geothermal; electrical conductivity ... See more keywords
Meeting the demand: geothermal heat supply rates for an urban quarter in Germany
Sign Up to like & getrecommendations! Published in 2019 at "Geothermal Energy"
DOI: 10.1186/s40517-019-0125-8
Abstract: Thermal energy for space heating and for domestic hot water use represents about a third of the overall energy demand in Germany. An alternative to non-renewable energy-based heat supply is the implementation of closed and… read more here.
Keywords: geothermal heat; urban quarter; heat supply; heat ... See more keywords
Development of a Variable Water Flow Rate Control Method for the Circulation Pump in a Geothermal Heat Pump System
Sign Up to like & getrecommendations! Published in 2018 at "Energies"
DOI: 10.3390/en11040718
Abstract: This study assessed a variable flow rate control method for a circulation pump based on the geothermal water temperature difference in a geothermal heat pump system. As interest in energy conservation and efficient use is… read more here.
Keywords: pump system; system; geothermal heat; pump ... See more keywords
Geothermal Heat Pumps for Slurry Cooling and Farm Heating: Impact and Carbon Footprint Reduction in Pig Farms
Sign Up to like & getrecommendations! Published in 2022 at "Sustainability"
DOI: 10.3390/su14105792
Abstract: The pig farm sector has been developing rapidly over recent decades, leading to an increase in the production of slurry and associated environmental impacts. Breeding farms require the maintenance of adequate indoor thermal environments, resulting… read more here.
Keywords: pig; farm; impact; slurry ... See more keywords