Results 21 to 30 of about 3,375,426 (391)
Hybrid Carbon Dioxide Heat Pump for the Multifamily Residential Buildings in the Heat Supply System Based on CHP [PDF]
Problems of the Regional Energetics, 2021 The work is devoted to centralized heat supply systems based on CHP plants and the use with them heat pumps (HP) on carbon dioxide as refrigerant. Heat pumps are used in heat supply sys-tems for buildings and use the heat of the outside air and, at the ...
Sit M.L., Juravliov A.A.
doaj +1 more source
Machine-Learning-Based Coefficient of Performance Prediction Model for Heat Pump Systems
Applied Sciences, 2021 In a heat pump system, performance is an important indicator that should be monitored for system optimization, fault diagnosis, and operational efficiency improvement.
Ji-Hyun Shin, Young‐Hum Cho
semanticscholar +1 more source
Energetic and Ecologic Heat Pumps Evaluation in Poland
Energies, 2020 The purpose of the work is a comparison of indirect carbon dioxide emissions between the different heat pump types that operate in Polish climate conditions.
Sara Sewastianik, Andrzej Gajewski
doaj +1 more source
Environmental Research Letters, 2021 To explore electrification as a climate change mitigation strategy, we study US residential heat pump adoption, given the current US housing stock. Our research asks (a) how the costs and benefits of heat pump adoption evolve with increased penetration, (
Thomas A Deetjen +2 more
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Automatic Control of the Hybrid Heat Pump for Heating of Multi-Storey Buildings [PDF]
Problems of the Regional Energetics, 2022 The work is devoted to control systems for hybrid heat pumps using the heat of return network water and outside air, designed to operate in district heating systems based on CHPP.
Sit M.L., Juravliov A.A., Timchenko D.V.
doaj +1 more source
Mechanics, 2011 An original rotary heat pump suggested by the authors is described in the presented paper. All thermodynamic processes of working fluid (evaporation – compression – condensation) based on the principle of heat pipe are provided in one volume of mushroom form closed vessel. The transportation of external heat flows is combined in the unit as well.
Juodvalkis, J. +6 more
openaire +1 more source
Nonadiabatic electron heat pump [PDF]
, 2007 We investigate a mechanism for extracting heat from metallic conductors based on the energy-selective transmission of electrons through a spatially asymmetric resonant structure subject to ac driving.
Fernando Sols +6 more
core +1 more source
Solar Energy Advances, 2023 Photovoltaic - Thermal (PVT) collectors convert solar radiation into useful heat and electricity simultaneously, and with the same PV area, higher solar energy is harvested; hence PVT can be a key technology for the future supply of buildings.
Bharat Chhugani +3 more
doaj +1 more source
Heat energy from a shallow geothermal system in Glasgow, UK: performance evaluation design [PDF]
, 2020 This study reports on the actual energy and economic performances of a water source heat pump recently installed and operated at a Glasgow Subway station in the UK using subsurface water ingress to provide heating and domestic hot water.
Aaen, Bjorn +3 more
core +1 more source
, 2020 Deep borehole heat exchangers (DBHEs) extract heat from the medium-depth geothermal energy with the depth of 2–3 km and provide high-temperature heat source for the medium-depth geothermal heat pump systems (MD-GHPs).
Jiewen Deng +4 more
semanticscholar +1 more source