Results 11 to 20 of about 37,539 (258)

Study of a water-source CO2 heat pump for residential use: experimental discharge pressure control and performance analysis [PDF]

open access: yesE3S Web of Conferences, 2021
The heat pumps with the refrigerant of carbon dioxide (CO2), i.e., CO2 heat pumps, have the merits of low price and environmentally friendliness in comparison with those with traditional refrigerants, e.g., hydrochlorofluorocarbons and ...
Li Yantong   +4 more
doaj   +1 more source

Energy flexible heat pumps in industrial energy systems: A review

open access: yesEnergy 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
doaj   +1 more source

Process Integration and Selection of Heat Pumps in Industrial Processes

open access: yesChemical Engineering Transactions, 2018
Waste heat recovery technologies holds great potential for cleaner production by improving energy efficiency, reducing energy usage and emissions of carbon dioxide.
Mengying Wang   +4 more
doaj   +1 more source

Chiral Brownian Heat Pump [PDF]

open access: yesPhysical Review Letters, 2008
Submitted to Phys.
VAN DEN BROEK, Martijn   +1 more
openaire   +4 more sources

Thermo-Chemical Instability and Energy Analysis of Absorption Heat Pumps

open access: yesEnergies, 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
doaj   +1 more source

Gender and the heat pump transition

open access: yesBuildings & Cities, 2023
Decarbonisation in moderate and cold climates is reliant on the replacement of existing heating technologies with electric heat pumps. Heat pumps work differently from incumbent technologies, including in how they are controlled, their distribution of ...
Jenny Crawley, Faye Wade, Mandy de Wilde
doaj   +1 more source

Harmonic performance of heat-pumps

open access: yesThe Journal of Engineering, 2013
Reverse cycle air-source heat-pumps are an increasingly significant load in New Zealand and in many other countries. This has raised concern over the possible impact wide-spread use of heat-pumps will have on the grid.
W.J.B. Heffernan   +3 more
doaj   +1 more source

Evaluation of High-Temperature Heat Pumps’ Potential to Replace Gas Boilers in Industrial Buildings [PDF]

open access: yesE3S Web of Conferences
The study proves that high-temperature heat pumps with CO2 of air to water type, in monobloc construction, can replace the gas boilers for heating and DHW, in an industrial building.
Talaba Ovidiu   +3 more
doaj   +1 more source

ROTARY HEAT PUMP

open access: yesMechanics, 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

Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP [PDF]

open access: yesProblems of the Regional Energetics, 2020
The work deals with district heating systems based on cogeneration plants and the use of carbon dioxide heat pumps in them. Heat pumps are used in heating systems of buildings and use the heat of outdoor air as a source of low potential heat and, at the ...
Sit M.L.   +5 more
doaj   +1 more source

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