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Exergy analysis of an experimental single-stage heat transformer operating with single water/lithium bromide and using additives (1-octanol and 2-ethyl-1-hexanol)
descriptionPublicationkeyboard_double_arrow_right Article , Journal 2011Publisher:Elsevier BV
Authors: M.J. Cardoso; H. Martínez; Wilfrido Rivera; Rosenberg J. Romero; +1 Authors
M.J. Cardoso; H. Martínez; Wilfrido Rivera; Rosenberg J. Romero; J. Cerezo;
doi: 10.1016/j.applthermaleng.2011.07.006
doi: 10.1016/j.applthermaleng.2011.07.006
Abstract Second law of Thermodynamics has been used to analyze the performance of an experimental single-stage heat transformer operating with the water/lithium bromide as single working pair and subsequently, using 1-octanol and 2-ethyl-1-hexanol as additives. Additives have been used in order to increase the heat transfer in the absorber and generator decreasing their irreversibilities. The enthalpy-based coefficients of performance ( COP ), external coefficients of performance ( COP EXT ), exergy-based coefficients of performance ( ECOP ) and the irreversibilities of the equipment components were calculated for the main operating temperatures of the system. The results showed that for absorber temperatures between 84 °C and 88 °C the highest COP , COP EXT , and ECOP are obtained with the use of the 2-ethyl-1-hexanol (400 parts per million) additive, reaching values up to 0.49, 0.40 and 0.43, respectively. The lowest coefficients of performance and highest irreversibilities were obtained by using the single water/lithium bromide mixture. Analysing the irreversibilities in each one of the main components of the system, it was found that 2-ethyl-1-hexanol decreases considerably the irreversibility in the absorber then increasing the efficiency of this component and hence of the entire equipment.
Applied Thermal Engi...arrow_drop_down
Applied Thermal Engineering
Article . 2011 . Peer-reviewed
License: Elsevier TDM
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Applied Thermal Engineering
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Article . 2011 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
Applied Thermal Engineering
Journal
Data sources: Microsoft Academic Graph
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Exergy analysis of an experimental single-stage heat transformer operating with single water/lithium bromide and using additives (1-octanol and 2-ethyl-1-hexanol)
descriptionPublicationkeyboard_double_arrow_right Article , Journal 2011Publisher:Elsevier BV
Authors: M.J. Cardoso; H. Martínez; Wilfrido Rivera; Rosenberg J. Romero; +1 Authors
M.J. Cardoso; H. Martínez; Wilfrido Rivera; Rosenberg J. Romero; J. Cerezo;
doi: 10.1016/j.applthermaleng.2011.07.006
doi: 10.1016/j.applthermaleng.2011.07.006
Abstract Second law of Thermodynamics has been used to analyze the performance of an experimental single-stage heat transformer operating with the water/lithium bromide as single working pair and subsequently, using 1-octanol and 2-ethyl-1-hexanol as additives. Additives have been used in order to increase the heat transfer in the absorber and generator decreasing their irreversibilities. The enthalpy-based coefficients of performance ( COP ), external coefficients of performance ( COP EXT ), exergy-based coefficients of performance ( ECOP ) and the irreversibilities of the equipment components were calculated for the main operating temperatures of the system. The results showed that for absorber temperatures between 84 °C and 88 °C the highest COP , COP EXT , and ECOP are obtained with the use of the 2-ethyl-1-hexanol (400 parts per million) additive, reaching values up to 0.49, 0.40 and 0.43, respectively. The lowest coefficients of performance and highest irreversibilities were obtained by using the single water/lithium bromide mixture. Analysing the irreversibilities in each one of the main components of the system, it was found that 2-ethyl-1-hexanol decreases considerably the irreversibility in the absorber then increasing the efficiency of this component and hence of the entire equipment.
Applied Thermal Engi...arrow_drop_down
Applied Thermal Engineering
Article . 2011 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
Applied Thermal Engineering
Journal
Data sources: Microsoft Academic Graph
linkLink to
shareshareShare
citeCite
addClaim
Please grant OpenAIRE to access and update your ORCID works.
This Research product is the result of merged Research products in OpenAIRE.

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This Research product is the result of merged Research products in OpenAIRE.

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citations 39
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Powered by BIP!
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Applied Thermal Engi...arrow_drop_down
Applied Thermal Engineering
Article . 2011 . Peer-reviewed
License: Elsevier TDM
Data sources: Crossref
Applied Thermal Engineering
Journal
Data sources: Microsoft Academic Graph
linkLink to
shareshareShare
citeCite
addClaim
Please grant OpenAIRE to access and update your ORCID works.
This Research product is the result of merged Research products in OpenAIRE.

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Exergy analysis of an experimental single-stage heat transformer operating with single water/lithium bromide and using additives (1-octanol and 2-ethyl-1-hexanol)

Exergy analysis of an experimental single-stage heat transformer operating with single water/lithium bromide and using additives (1-octanol and 2-ethyl-1-hexanol)

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Exergy analysis of an experimental single-stage heat transformer operating with single water/lithium bromide and using additives (1-octanol and 2-ethyl-1-hexanol)

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Exergy analysis of an experimental single-stage heat transformer operating with single water/lithium bromide and using additives (1-octanol and 2-ethyl-1-hexanol)

Energy Research
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