Results 1 to 10 of about 39,136 (161)
Selection and techno-economic analysis of hybrid ground source heat pumps used in karst regions [PDF]
Science Progress, 2020 In order to take advantage of different forms of heat pumps and to mitigate thermal imbalance underground caused by long-term operation of ground source heat pumps, hybrid ground source heat pump systems have received an increasing attention.
Weisong Zhou +5 more
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Energy and economic sustainability in the renewal of centralized heating systems using hybrid heat pump systems [PDF]
E3S Web of Conferences, 2022 In the context of the energy transition policies desired by the EU, the objectives set by 2030 include the reduction of greenhouse gas emissions, the achievement of greater energy savings and the increase in the use of renewable energy. This study, after
Tomas Federico, Dal Cason Alberto
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Air-, ground- and dual-source heat pumps: a comparison between energy-efficient systems for a Swedish dwelling [PDF]
E3S Web of Conferences, 2022 Air-source heat pumps (ASHPs) and ground-source heat pumps (GSHPs) are the most spread heat pumps nowadays. However, they suffer from drawbacks that could be mostly overcome coupling the two heat sources, i.e., using dual-source heat pumps (DSHPs).
Fascì Maria Letizia
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Assessing Inequities in Electrification via Heat Pumps Across the US [PDF]
JouleYueming Qiu, Morgan R Edwards
exaly +2 more sources
Heat Transfer, Refrigeration and Heat Pumps
Energies, 2021 The Special Issue entitled “Heat Transfer, Refrigeration and heat Pumps” accepted papers covering a wide range of topics related to heat pumps, thermal energy storage, and low-Global Warming Potential (GWP) alternative refrigerants [...]
Moonis R. Ally, Brian Fricke
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Physical Review E, 2006 We propose a novel molecular device that pumps heat against a thermal gradient. The system consists of a molecular element connecting two thermal reservoirs that are characterized by different spectral properties. The pumping action is achieved by applying an external force that periodically modulates molecular levels.
Segal, Dvira, Nitzan, Abraham
openaire +3 more sources
Critical Analysis of Process Integration Options for Joule-Cycle and Conventional Heat Pumps
Energies, 2020 To date, research on heat pumps (HP) has mainly focused on vapour compression heat pumps (VCHP), transcritical heat pumps (TCHP), absorption heat pumps, and their heat integration with processes.
Limei Gai +3 more
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Energies, 2022 The use of heat pumps in buildings is one of the best and often the only option for the decarbonization of the building stock. District heating seems a promising solution in urban areas and in existing buildings when the use of heat pumps is restricted ...
Fabian Ochs +2 more
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Thermo-Chemical Instability and Energy Analysis of Absorption Heat Pumps
Energies, 2020 This paper presents the results of energy analysis of absorption heat pumps. The thermo-chemical instability term was introduced for absorption heat pumps used for heating or cooling or heating and cooling. A higher thermo-chemical instability results in
Gábor L. Szabó
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Energy flexible heat pumps in industrial energy systems: A review
Energy Reports, 2023 This paper aims for a review of the operational and design approaches of industrial heat pump systems within industrial smart grids. This work identifies the strengths and potentials of energy flexible heat pumps integrated into the industrial energy ...
Bijan Seyed Sadjjadi +2 more
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