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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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Temperature profiles in ground heat exchangers
Czasopismo Techniczne. Chemia, 2014A mathematical model of a ground heat exchanger cooperating with a heat pump was presented. The model is based on a one-dimensional heat conduction equation with an internal heat source. On the basis of the solutions to the model equations, both the temperature distribution of different types of ground at different times of year as well as the time ...
Barbara Larwa, Krzysztof Kupiec
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Heat contact resistance of in-ground heat exchangers
1982Solar Coupled Ground Storage with Heat Pumps Workshop ISPRA: 1982,
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Groundwater flow and Ground Heat Exchangers
2019The flow of groundwater in multiple ground layers can play a significant role on the cooling or heating of vertical heat columns and Ground Heat Exchangers (GHEs), and hence on the construction of the latter. The heat distribution over time is described by the general heat transfer equation based on the energy balance.
Lazari, Lazaros +3 more
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