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Heat transfer in horizontal ground heat exchangers
Applied Thermal Engineering, 2015Abstract The mathematical model of a horizontal ground heat exchanger was presented. The model was based on a one-dimensional equation of the transient heat conduction with an internal source of heat. The model was correctly verified by comparison of computational results and experimental measurements presented in literature.
Barbara Król, Krzysztof Kupiec
exaly +3 more sources
HEAT EXCHANGER FOR IN-GROUND HEAT STORAGE
Chemical Engineering Communications, 1980The first phase of a research project using undisturbed soil for sensible heat storage is described. A laboratory scale model of a heat exchange system was constructed and tested. Thermal charging and recovery rates, modes of heat transport and transient temperature conditions, as well as over-all heat storage performance of the unit are given.
Svec, O. J., Palmer, J. H. L.
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Long Term Simulation of Horizontal Ground Heat Exchanger for Ground Source Heat Pump
Volume 6B: Energy, 2015The earth is an energy resource which has more suitable and stable temperatures than air. Ground Source Heat Pumps (GSHPs) were developed to use ground energy for residential heating. The most important part of a GSHP is the Ground Heat Exchanger (GHE) that consists of pipes buried in the soil and is used for transferring heat between the soil and the ...
AĞRA, Özden +3 more
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Performance of a Drainage Trench Employed as Ground Heat Exchanger
Proceedings of the 15th International Heat Transfer Conference, 2014Novel shapes of horizontal ground heat exchangers coupled with ground-source heat pumps represent a viable and efficient option for shallow geothermal plants. Here, the thermal performance of a drainage trench employed as a ground heat exchanger is studied.
Michele Bottarelli +2 more
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Uncertainties in the design of ground heat exchangers
Environmental Geotechnics, 2016Ground source heat pump (GSHP) systems have the potential to reduce the carbon dioxide footprint of buildings by providing them with sustainable heating and cooling energy from the ground at shallow depths. The financial viability of these systems depends on the adequate sizing of the ground heat exchangers (GHEs), which generally contribute the most ...
Mikhaylova, O +2 more
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Horizontal Ground Heat Exchangers
2016We will now extend our knowledge of vertical GHXs to horizontal ones. As we shall see, there are many similarities, but also some significant differences. Thus, the focus of this chapter is the design and dimensioning of horizontal ground heat exchangers (GHXs) coupled to heat pump applications in buildings.
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Utilization of Ground Heat Exchangers: a Review
Current Sustainable/Renewable Energy Reports, 2018Ground heat exchanger takes the soil underground as heat source or sink to supply cooling or heating to buildings. It has been widely used in building heating and cooling systems due to high efficiency and environmental friendliness. This paper reviews the latest research on the ground heat exchanger in buildings.
Tian Yan, Xinhua Xu
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Ground Heat Exchangers-A Review
2009The temperature distribution in the ground is distinguished in three zones. The Surface zone, which reaches a depth of about 1m, the Shallow zone extending at a maximum depth of 20 m, and the Deep zone, where the ground temperature remains nearly constant throughout the year.
Florides, Georgios A. +1 more
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Heat transfer in ground heat exchangers with groundwater advection
International Journal of Thermal Sciences, 2004In order to estimate the impact of groundwater flow on performance of geothermal heat exchangers in ground source heat pump systems, an equation of conduction–advection is established for heat transfer in porous media, and an analytical transient solution is obtained for a line heat source in an infinite medium by means of the Green function analysis ...
Nairen Diao, Qinyun Li, Zhaohong Fang
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Horizontal ground heat exchangers modelling
Applied Thermal Engineering, 2019Abstract Geothermal heat exchangers applied to building air conditioning and heating systems are often categorized as vertical and horizontal configurations. In this article, an analytical model is presented to simulate on an hourly basis, ground heat exchangers having a horizontal configuration.
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