Exergetic optimisation of a heat exchanger, Engergy Conversion and Management

Rene Cornelissen, Gerard Hirs

Research output: Contribution to journalArticleAcademicpeer-review

34 Citations (Scopus)
234 Downloads (Pure)

Abstract

Abstract The objective of this paper is to show that for the optimal design of an energy system, where there is a trade-off between exergy saving during operation and exergy use during construction of the energy system, exergy analysis and life cycle analysis should be combined. The two methods are often used separately, but a limited number of studies has been carried out in which they are combined in some way. An exergetic optimisation of a heat exchanger has been carried out on the basis of the life cycle analysis method in this paper. The optimisation takes into account irreversibilities due to frictional pressure drops and the temperature difference between the hot and cold stream and irreversibilities due to the production of the materials and the construction of the heat exchanger. As an example of this type of heat exchanger, a water to water heat exchanger in a city heating system has been selected. The influence of the configuration of the heating system, including the energy conversion, on the optimisation of the heat exchangers has been shown. The analysis of the heat exchanger in which exergy analysis and life cycle analysis are combined gives the design conditions of the heat exchangers which lead to the lowest life cycle irreversibility.
Original languageUndefined
Pages (from-to)1567-1576
JournalEnergy conversion and management
Volume38
Issue number15-17
DOIs
Publication statusPublished - 1997

Keywords

  • METIS-144476
  • IR-32225

Cite this

Cornelissen, Rene ; Hirs, Gerard. / Exergetic optimisation of a heat exchanger, Engergy Conversion and Management. In: Energy conversion and management. 1997 ; Vol. 38, No. 15-17. pp. 1567-1576.
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Exergetic optimisation of a heat exchanger, Engergy Conversion and Management. / Cornelissen, Rene; Hirs, Gerard.

In: Energy conversion and management, Vol. 38, No. 15-17, 1997, p. 1567-1576.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Exergetic optimisation of a heat exchanger, Engergy Conversion and Management

AU - Cornelissen, Rene

AU - Hirs, Gerard

PY - 1997

Y1 - 1997

N2 - Abstract The objective of this paper is to show that for the optimal design of an energy system, where there is a trade-off between exergy saving during operation and exergy use during construction of the energy system, exergy analysis and life cycle analysis should be combined. The two methods are often used separately, but a limited number of studies has been carried out in which they are combined in some way. An exergetic optimisation of a heat exchanger has been carried out on the basis of the life cycle analysis method in this paper. The optimisation takes into account irreversibilities due to frictional pressure drops and the temperature difference between the hot and cold stream and irreversibilities due to the production of the materials and the construction of the heat exchanger. As an example of this type of heat exchanger, a water to water heat exchanger in a city heating system has been selected. The influence of the configuration of the heating system, including the energy conversion, on the optimisation of the heat exchangers has been shown. The analysis of the heat exchanger in which exergy analysis and life cycle analysis are combined gives the design conditions of the heat exchangers which lead to the lowest life cycle irreversibility.

AB - Abstract The objective of this paper is to show that for the optimal design of an energy system, where there is a trade-off between exergy saving during operation and exergy use during construction of the energy system, exergy analysis and life cycle analysis should be combined. The two methods are often used separately, but a limited number of studies has been carried out in which they are combined in some way. An exergetic optimisation of a heat exchanger has been carried out on the basis of the life cycle analysis method in this paper. The optimisation takes into account irreversibilities due to frictional pressure drops and the temperature difference between the hot and cold stream and irreversibilities due to the production of the materials and the construction of the heat exchanger. As an example of this type of heat exchanger, a water to water heat exchanger in a city heating system has been selected. The influence of the configuration of the heating system, including the energy conversion, on the optimisation of the heat exchangers has been shown. The analysis of the heat exchanger in which exergy analysis and life cycle analysis are combined gives the design conditions of the heat exchangers which lead to the lowest life cycle irreversibility.

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