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4th High-temperature Heat Pump Symposium:Book of Presentations
Zühlsdorf, Benjamin +2 more
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High-Temperature Heat Pumps for Sustainable Industry
2021High-temperature heat pumps (HTHPs) based on vapour compression technology are being considered an energy-efficient possibility for low-grade waste heat recovery in industrial applications. If the HTHP technology is extended, the industrial energy efficiency would be closer to the 2050 target of decarbonisation, and consequently, it would reduce the ...
Adrián Mota-Babiloni +2 more
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Temperature Transformation for High-Temperature Heat Pumps
Journal of Engineering for Gas Turbines and Power, 1988A heat pump cycle is introduced that allows heat pumping between two very high temperature levels, while the suction temperature of the working fluid vapor passing through the compressor is considerably lower. This effect of “Temperature Transformation” is achieved by using a working fluid mixture instead of a single pure component and by employing an ...
R. Radermacher, L. A. Howe
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Working fluids for high temperature heat pumps
Journal of Heat Recovery Systems, 1986Abstract The suitability of working fluids for use in high temperature heat pump systems has been considered on the basis of their volumetric and other thremodynamic properties. The change of thermodynamic properties with temperature has been graphically illustrated.
M.A.R. Eisa, R. Best, F.A. Holland
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Fluids for high temperature heat pumps
International Journal of Refrigeration, 1986Abstract The theoretical performances of some 250 potential work fluids in vapour compression heat pumps condensing at 150°C and evaporating at 100°C have been predicted, using expression for coefficient of performance (COP) and minimum superheat that involve only easily accessible physical properties. Expected correlations were found between COP and
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Review Status on High Temperature Heat Pumps
Applied Mechanics and Materials, 2012A heat pump is a kind of energy saving equipment. It can effectively improve the grade of low temperature renewable and waste energy. Because of the increasing demands for higher temperature energy in many industrial processes and other fields, the development and research of high temperature heat pumps have been becoming more and more pressing and ...
Guang Hui Zhou +3 more
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High-temperature heat-pump fluids
Physics in Technology, 1988Heat pumps could be immensely useful in many industrial processes, but standard working fluids are unsuitable for the high temperatures involved. The ideal high-temperature heat-pump fluid should have a high (but not too high) critical temperature, a moderate critical pressure ( approximately=5.0 MPa) and a low (but not too low) boiling point.
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A High Temperature Lift Absorption Heat Pump
1984Mixtures of alkali-metal hydroxides (principally sodium) with water have been identified as constituting a useful pair for use in an absorption heat pump capable of providing the high temperature lift that is necessary for hydronic domestic heating systems with ambient air as the heat source.
C. O. B. Carey +2 more
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Groundwater heat pump selection for high temperature heating retrofit
Energy and Buildings, 2012Abstract Retrofitting of fossil fuel powered hot water radiator heating systems of the existing buildings by groundwater heat pumps can provide significant energy savings followed by economic and environmental benefits. The paper describes the procedure for selection of optimal low-temperature groundwater heat pump vapor compression cycle based on ...
Antonijević, Dragi +3 more
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