Results 11 to 20 of about 5,412 (233)
Finite element modeling of geothermal source of heat pump in long-term operation [PDF]
E3S Web of Conferences, 2020 Heat pumps become more and more popular heat source. They can be an alternative choice for obsolete coal fired boilers which are emissive and not ecological.
Hałaj Elżbieta
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Energies, 2022 The purpose of the present work was to determine the thermal performance of borehole heat exchangers, considering the influences of their geometric configurations and the thermophysical properties of the soil, grout and pipe wall material.
Tangnur Amanzholov +9 more
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Uncertainty quantification of borehole heat exchanger design length based on a global sensitivity analysis [PDF]
E3S Web of Conferences, 2023 Ground heat exchangers are essential components of ground-source heat pump systems. One of the most-used ground heat exchanger types is a borehole heat exchanger (BHE).
Shin Euntak +3 more
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Geothermal power based ULTDH for cooling and heating purposes [PDF]
E3S Web of Conferences, 2019 Ultra-low temperature district heating systems facilitate use of waste and renewable heat sources. The article presents a possible scheme of operation and optimisation of small ultra-low temperature district heating system consisting of waste heat source,
Ciapała Bartłomiej, Janowski Mirosław
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Energies, 2022 Just as the double-pipe heat exchanger is being utilized in an increasing number of applications, its research content is also deepening. For this paper, based on the air-conditioning cold and heat source project of a building in Handan, Hebei Province ...
Wenjing Li +5 more
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Dynamic and Static Investigation of Ground Heat Exchangers Equipped with Internal and External Fins
Applied Sciences, 2020 Using fins on the inner and outer surfaces of pipes is one method to improve the heat transfer rate of ground heat exchangers (GHEs), thereby reducing the borehole depth and construction and operation costs.
Atefeh Maleki Zanjani +3 more
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Energies, 2021 Currently, renewable energy is increasingly important in the energy sector. One of the so-called renewable energy sources is geothermal energy. The most popular solution implemented by both small and large customers is the consumption of low-temperature ...
Tomasz Sliwa +3 more
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Sub-hourly simulation of residential ground coupled heat pump systems [PDF]
, 2006 Residential Ground Coupled Heat Pump systems are usually characterised by an ON/OFF behaviour of the heat pump with typical cycling frequencies of 1 - 4 cycles per hour.
Bernier, Michel, Kummert, Michael
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Energies, 2023 In the last decade, due to climate change concerns and new environmental regulations in the EU, there was a tremendous rise in installed heat pump systems in new homes and buildings.
Tomislav Kurevija +2 more
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The analysis of long-term borehole heat exchanger system exploitation
Computer Assisted Methods in Engineering and Science, 2017 The key issue in designing borehole heat exchangers (BHE) is the long-term performance of the ground source heat pump (GSHP) systems. The performance directly reflects economic profitability and depends on a large number of parameters including rock ...
Marek Jaszczur, Tomasz Śliwa
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