Results 11 to 20 of about 35,380 (259)

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

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

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

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

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

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

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

Efficiency of using heat pumps with various refrigerants in real steam turbine power units with PT-80 and T-250 turbines [PDF]

open access: yesE3S Web of Conferences, 2019
Prospects for increasing the efficiency of heat and electric energy-generation and heat-and-power supply at thermal power plants obviously draw attention to such modern and innovative technologies as heat pumps.
Sergeyev Vitaliy   +3 more
doaj   +1 more source

Residential buildings with heat pumps peak power reduction with high performance insulation [PDF]

open access: yesE3S Web of Conferences, 2020
Revised EPBD directive has set ambitious targets for nearly zero energy buildings. In residential buildings, energy performance can be improved mainly by applying better insulation of building fabric and by efficient energy sources, i.e.
Sarevet Henri   +3 more
doaj   +1 more source

Heat Exchanger Network Design Considering the Heat Pump Performance

open access: yesChemical Engineering Transactions, 2014
Setting heat pumps correctly in a heat exchanger network can reduce the consumption of cold and hot utilities simultaneously and further enhance the energy utilization efficiency.
M. Yang, X. Feng, G. Liu
doaj   +1 more source

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