hig.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Quenching a rotary hollow cylinder by multiple configurations of water-impinging jets
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, Energisystem och byggnadsteknik. (Energy Systems)ORCID-id: 0000-0002-3315-5610
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, Energisystem och byggnadsteknik. Department of Management and Engineering, Linköping University. (Energy Systems)ORCID-id: 0000-0003-3472-4210
2019 (engelsk)Inngår i: International Journal of Heat and Mass Transfer, ISSN 0017-9310, E-ISSN 1879-2189, Vol. 137, s. 124-137Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Experiments have been conducted to analyze quenching of a hot rotary hollow cylinder by one and two rows of water-impinging jets. Sub-cooled water jets (ΔTsub = 45–85 K) with flow rate 8006 to 36,738 impinged on hollow cylinder with rotation speed 10 to 70 rpm at various initial wall superheat temperatures from 250 to 600ºC. Jet-to-jet and jet-to-surface spacing varied between 4 to 10d and 1.5 to 7d respectively and angular position of impinging jets were tested from 0 to 135º. Effectiveness of the defined parameters on stagnation point’s local average heat flux was found lower in the film and nucleate boiling compare to transition boiling regime where rotation speed had the highest impact. Characteristic of maximum heat flux (MHF) at stagnation point and upwash flow point were analyzed based on surface heat flux, time and temperature corresponding to MHF. Same maximum heat flux levels were captured in the both points which reveals importance of the flow behavior at the upwash flow point. The effectiveness of the parameters to improve average heat transfer was studied based on cooling area of each water impingingjet in the multiple configurations. Higher average heat transfer was obtained by increasing flow rate and subcooling temperature and lower initial wall superheat temperature corresponding to onset of transition boiling regime.

sted, utgiver, år, opplag, sider
Elsevier, 2019. Vol. 137, s. 124-137
Emneord [en]
Multiple water impinging jets, Transient boiling, Moving surface, Inverse heat conduction problem, Quenching
HSV kategori
Identifikatorer
URN: urn:nbn:se:hig:diva-29428DOI: 10.1016/j.ijheatmasstransfer.2019.03.066ISI: 000469154600012Scopus ID: 2-s2.0-85063252091OAI: oai:DiVA.org:hig-29428DiVA, id: diva2:1301434
Forskningsfinansiär
Swedish Energy Agency, 38492-1Tilgjengelig fra: 2019-04-01 Laget: 2019-04-01 Sist oppdatert: 2019-11-26bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Jahedi, MohammadMoshfegh, Bahram

Søk i DiVA

Av forfatter/redaktør
Jahedi, MohammadMoshfegh, Bahram
Av organisasjonen
I samme tidsskrift
International Journal of Heat and Mass Transfer

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 39 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf