Cristin-resultat-ID: 1386060
Sist endret: 14. februar 2017, 12:00
NVI-rapporteringsår: 2016
Resultat
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2016

R744 train HVAC unit

Bidragsytere:
  • Armin Hafner
  • Krzysztof Banasiak og
  • Lutz Boeck

Bok

12th IIR Gustav Lorentzen Conference on Natural Refrigerants GL2016 : Proceedings
ISBN:
  • 9782362150180

Utgiver

International Institute of Refrigeration
NVI-nivå 1

Serie

Science et technique du froid
ISSN 0151-1637
e-ISSN 1766-0408
NVI-nivå 1

Om resultatet

Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Publiseringsår: 2016
Hefte: 2016-4
ISBN:
  • 9782362150180

Importkilder

Scopus-ID: 2-s2.0-85017589152

Klassifisering

Fagfelt (NPI)

Fagfelt: Energi
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

R744 train HVAC unit

Sammendrag

Currently available HVAC units for trains are commonly using either HFC-134a (75%) or HFC-407C (25%) as working fluids, which have a significant global warming potential when released into the environment. These units typically rely on inefficient direct electrical heating to cover heating demands. However, some system suppliers can offer HFC-134a HVAC systems with heat pump capabilities able to supply heating to the coach at ambient temperatures above -5 °C. Deutsche Bahn has analysed the energy consumption of their Railway Rolling Stock in detail over several years. Up to 30 % of their total energy consumption has to be spent to operate the HVAC units of the passenger trains in Germany. Only the propulsion system requires a larger share of the total energy. In Norway the energy consumption for heating up the train compartments is dominating, due to the high amount of operating hours at low ambient temperatures. The paper describes the development status of an energy efficient and environmentally friendly HVAC unit applying R744 for trains. The pilot unit will be tested on a Norwegian train operated in the Oslo area from summer 2016.

Bidragsytere

Aktiv cristin-person

Armin Hafner

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

Krzysztof Banasiak

  • Tilknyttet:
    Forfatter
    ved Termisk energi ved SINTEF Energi AS

Lutz Boeck

  • Tilknyttet:
    Forfatter
    ved Tyskland
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Resultatet er en del av Resultatet er en del av

12th IIR Gustav Lorentzen Conference on Natural Refrigerants GL2016 : Proceedings.

GL2016, .. 2016, International Institute of Refrigeration. Vitenskapelig antologi/Konferanseserie
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