Cristin-resultat-ID: 1288130
Sist endret: 7. juni 2016, 13:42
NVI-rapporteringsår: 2015
Resultat
Vitenskapelig artikkel
2016

Performance analysis of an R744 ground source heat pump system with air-cooled and water-cooled gas coolers

Bidragsytere:
  • Haitao Hu
  • Trygve Magne Eikevik
  • Petter Nekså
  • Armin Hafner
  • Guoliang Ding
  • Qingnan Huang
  • mfl.

Tidsskrift

International journal of refrigeration
ISSN 0140-7007
e-ISSN 1879-2081
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2016
Publisert online: 2015
Trykket: 2016
Volum: 63
Sider: 72 - 86
Open Access

Importkilder

Scopus-ID: 2-s2.0-84955272343

Beskrivelse Beskrivelse

Tittel

Performance analysis of an R744 ground source heat pump system with air-cooled and water-cooled gas coolers

Sammendrag

In order to decrease the earth's energy imbalance degree, a R744 ground source heat pump system (GSHPS) with air-cooled and water-cooled gas coolers was designed, and the performances of this system were analyzed numerically. The results show that, for the proposed R744 system in different regions, the earth's energy imbalance degree can always be decreased to zero by optimizing the cooling load proportion of air-cooled gas cooler. Comparing with the system without air-cooled gas cooler, the investment cost of the proposed R744 system is decreased by 14.5%~25.5% due to the decreasing cost of ground heat exchanger, and the coefficient of performance is increased. With the increase of ground heat exchanger depth, the performance deteriorates, and the ground heat exchanger with shorter depth is preferred in the GSHPS. The investment and operation costs of the proposed R744 system are lower than that of the existing R134a system.

Bidragsytere

Haitao Hu

  • Tilknyttet:
    Forfatter
    ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
  • Tilknyttet:
    Forfatter
    ved Shanghai Jiao Tong University
Aktiv cristin-person

Trygve Magne Eikevik

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

Petter Nekså

  • Tilknyttet:
    Forfatter
    ved Gassteknologi ved SINTEF Energi AS
Aktiv cristin-person

Armin Hafner

  • Tilknyttet:
    Forfatter
    ved Termisk energi ved SINTEF Energi AS

Guoliang Ding

  • Tilknyttet:
    Forfatter
    ved Shanghai Jiao Tong University
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