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- Anghel, Ionut GheorgheKTH,Reaktorteknologi (författare)
Experimental Investigation of the Influence of Flow Obstacles on Post-Dryout Heat Transfer in an Annulus
- Artikel/kapitelEngelska2009
Förlag, utgivningsår, omfång ...
- NEW YORK :AMER SOC MECHANICAL ENGINEERS,2009
- printrdacarrier
Nummerbeteckningar
- LIBRIS-ID:oai:DiVA.org:kth-29197
- https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-29197URI
- https://doi.org/10.1115/ICONE17-75284DOI
Kompletterande språkuppgifter
- Språk:engelska
- Sammanfattning på:engelska
Ingår i deldatabas
- SwePubSwePub
Klassifikation
Anmärkningar
- QC 20110201
- This paper describes the experimental setup, instrumentation and procedures which have been developed in the thermal-hydraulic laboratory at the Royal Institute of Technology (KTH), Stockholm, Sweden, to perform new post-dryout heat transfer investigations in an annulus with flow obstacles. Previous investigations performed in the same laboratory indicated that flow obstacles had a considerable influence on the post-CHF heat transfer. The measured heat transfer enhancement was significantly under-predicted by existing models. However, the net effect of obstacles could not be deduced from the measurements, since reference - obstacle-free measurements- had not been performed. In addition, the number of thermocouples that could be installed inside the heated rod was limited to 8. These deficiencies have been removed in the current approach. Firstly, the present design of the test section allows for measurements both with and without flow obstacles. In this way the net effect of the obstacles will be captured. Secondly, a newly developed technique allowed the installation of 40 thermocouples inside of the heated rod. An additional 40 thermocouples have been installed on the external wall of the heated tube. Therefore, a significant improvement of the accuracy of measurements can be expected. The present arrangement of instrumentation is suitable to perform measurements of heat transfer under both steady-state and transient conditions.
Ämnesord och genrebeteckningar
- TEKNIK OCH TEKNOLOGIER Maskinteknik Energiteknik hsv//swe
- ENGINEERING AND TECHNOLOGY Mechanical Engineering Energy Engineering hsv//eng
- Experimental investigations
- Experimental setup
- External walls
- Heat Transfer enhancement
- Heated tubes
- Net effect
- Post-dryout
- Royal Institute of Technology
- Stockholm
- Sweden
- Test sections
- Thermal hydraulics
- Transient conditions
- Computer crime
- Heat exchangers
- Heat transfer
- Instruments
- Nuclear engineering
- Nuclear industry
- Thermocouples
- Thermometers
- Mechanical and thermal engineering
- Mekanisk och termisk energiteknik
Biuppslag (personer, institutioner, konferenser, titlar ...)
- Anglart, HenrykKTH,Reaktorteknologi(Swepub:kth)u13dqfg8 (författare)
- Hedberg, StellanKTH,Reaktorteknologi(Swepub:kth)u1fx6rs6 (författare)
- Rydström, StefanKTH,Reaktorteknologi(Swepub:kth)u1wkfhc0 (författare)
- KTHReaktorteknologi (creator_code:org_t)
Sammanhörande titlar
- Ingår i:ICONE 17NEW YORK : AMER SOC MECHANICAL ENGINEERS, s. 277-2869780791843536
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