Cristin-resultat-ID: 1927914
Sist endret: 1. desember 2021, 13:28
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Numerical Study of Hydrocarbon Charge Reduction Methods in HVAC Heat Exchangers

Bidragsytere:
  • Ehsan Allymehr
  • Geir Skaugen
  • Torsten Will
  • Ángel Á. Pardiñas
  • Trygve Magne Eikevik
  • Armin Hafner
  • mfl.

Tidsskrift

Energies
ISSN 1996-1073
e-ISSN 1996-1073
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Publisert online: 2021
Trykket: 2021
Volum: 14
Hefte: 15
Artikkelnummer: 4480
Open Access

Importkilder

Scopus-ID: 2-s2.0-85112630860

Beskrivelse Beskrivelse

Tittel

Numerical Study of Hydrocarbon Charge Reduction Methods in HVAC Heat Exchangers

Sammendrag

Required refrigerant charge in heat pump systems with propane is analyzed. Two systems are compared: The first a direct heat pump, with fin-and-tube heat exchangers, and the second an indirect system, with plate heat exchangers with an additional brine-to-air heat exchanger. Each system was considered to be able to work reversibly, with 5 design cooling capacity in summer and 8 design heating capacity in winter. Two separately developed simulation codes were used to calculate the required refrigerant charge and the efficiency of each of the systems. The charge was reduced by the use of microfinned tubes up to 22% in direct system reduced using microfinned tubes compared to the smooth tube. For the indirect system using specially designed plate heat exchangers with the minimum internal volume, their charge was reduced by up to 66% compared to normal plate heat exchangers. © 2021 by the authors. Author keywords Heat exchanger; Hydrocarbon; Optimization; System charge

Bidragsytere

Ehsan Allymehr

  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet

Geir Skaugen

  • Tilknyttet:
    Forfatter
    ved Gassteknologi ved SINTEF Energi AS

Torsten Will

  • Tilknyttet:
    Forfatter
    ved Fraunhofer-Institut für Solare Energiesysteme ISE

Ángel Álvarez Pardiñas

Bidragsyterens navn vises på dette resultatet som Ángel Á. Pardiñas
  • Tilknyttet:
    Forfatter
    ved Termisk energi ved SINTEF Energi AS
Aktiv cristin-person

Trygve Magne Eikevik

  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
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