Thermo-Chemical Instability and Energy Analysis of Absorption Heat Pumps

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 the equipment being more sensitive with regar...

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Bibliographic Details
Published in:Energies (Basel) 2020-04, Vol.13 (8), p.1966
Main Author: L. Szabó, Gábor
Format: Article
Language:English
Subjects:
Absorption
absorption heat pump
Compressors
Cooling
Energy consumption
Energy demand
Energy efficiency
energy need
Evaporation
Heat
Heat exchangers
Heat pumps
Heating
HVAC
Instability
Stability
Stability analysis
thermo-chemical instability
total energy use
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Summary: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 the equipment being more sensitive with regard to the variation of the heat source flux. This sensitivity can be taken into account when heat sources are chosen for a certain absorption machine. Absorption heat pumps having thermo-chemical compressors were compared from energy demand and energy efficiency points of view with heat pumps having mechanical compressors. As it is shown, for certain evaporation and condensation temperature values, an absorption heat pump with similar efficiency to that of the heat pump with a mechanical compressor can always be found.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13081966