Results 201 to 210 of about 37,539 (258)

Heat pumps

open access: yes, 2019
Milius, Povilas, Krawczyk, Dorota Anna
openaire   +1 more source

Booster heat pumps and central heat pumps in district heating

Applied Energy, 2016
Abstract District heating (DH) enables the utilisation and distribution of heating from sources unfeasible for stand-alone applications and combined with cogeneration of heat and power (CHP), has been the cornerstone of Denmark’s realisation of a steady national primary energy supply over the last four decades.
Poul Alberg Østergaard   +1 more
openaire   +3 more sources

A DEHUMIDIFYING HEAT PUMP FOR GREENHOUSES

Acta Horticulturae, 2012
In heated greenhouses, attempts have been made to produce potted plants while reducing the amount of energy used. In fact, improvements in greenhouse structure and equipment (double walls, etc.) have led to better insulation and tightness. However, this tightness induces microclimatic changes, especially on night time humidity levels.
Migeon, Christophe   +4 more
openaire   +3 more sources

Adsorption heat pumps

Journal of Heat Recovery Systems, 1986
Abstract Adsorption heat pumps have sparked considerable attention in recent years. In this paper general outlines for adsorption heat pumps are presented and the results of the work related to an adsorption heat pump which has been built and tested are given.
openaire   +2 more sources

Heat exchangers and the performance of heat pumps – Analysis of a heat pump database

Applied Thermal Engineering, 2011
Abstract Heat pumping is a highly energy-efficient technology that could help reduce energy and environmental problems. The efficiency of a heat pump greatly depends on the individual and integral performance of the components inside. In this study, heat pump performance is investigated with a special focus on heat exchangers.
D.S. Kim   +3 more
openaire   +1 more source

Possibilities of heat pumps for heating homes

Electrical Engineering, 1944
Heat pumps are refrigerating systems in which the principal interest is in the heat given off by the condenser. A portion of this comes from the electric input to the compressor and the remainder from cooling an external source of heat, usually outdoor air.
openaire   +1 more source

The Heat Pump

Journal AWWA, 1948
A MONG the many products of inJfx dustry that have been developed to the point of practically universal acceptance so far in this century are the automobile, airplane, electric (and mechanical) refrigeration, radio, air conditioning and water conditioning.
openaire   +1 more source

Heat pumps

Resources and Conservation, 1981
traduzione in inglese di Pompe di calore, in “Rassegna”
openaire   +3 more sources

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