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Spray Cooling Unit for Heat Treatment of Stainless Steel Sheets

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU109131" target="_blank" >RIV/00216305:26210/14:PU109131 - isvavai.cz</a>

  • Result on the web

    <a href="http://www.scopus.com/record/display.url?eid=2-s2.0-84904035281&origin=resultslist&sort=plf-f&src=s&st1=hnízdil&sid=C4F5B65991CF15C6559F2A1962AE4A66.ZmAySxCHIBxxTXbnsoe5w%3a340&sot=b&sdt=b&sl=20&s=AUTHOR-NAME%28hnízdil%29&relpos=0&relpos=0&citeCnt=0&sear" target="_blank" >http://www.scopus.com/record/display.url?eid=2-s2.0-84904035281&origin=resultslist&sort=plf-f&src=s&st1=hnízdil&sid=C4F5B65991CF15C6559F2A1962AE4A66.ZmAySxCHIBxxTXbnsoe5w%3a340&sot=b&sdt=b&sl=20&s=AUTHOR-NAME%28hnízdil%29&relpos=0&relpos=0&citeCnt=0&sear</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.936.1720" target="_blank" >10.4028/www.scientific.net/AMR.936.1720</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Spray Cooling Unit for Heat Treatment of Stainless Steel Sheets

  • Original language description

    Stainless steel sheets are successively heated to a temperature of 1150degree of Celsia and cooled until ambient temperature during the production process. Requirements for high cooling rates of stainless steel sheets producers lead to use water as a cooling medium. The information about cooling intensity (heat transfer coefficient) of different nozzles configurations is necessary for designing cooling sections. Although many researchers deal with water spray cooling, actually a general correlation for predicting heat transfer coefficient for wide range of nozzles configurations does not exists. That is the reason why heat transfer coefficient for different nozzles configurations can be only obtained by laboratory measurements. Heat transfer coefficient is mostly influenced by water impingement density and impact velocity. However other factors e.g. water temperature and velocity of the sheet can influence the heat transfer coefficient. Optimized design of the cooling unit with high cooling intensity and low water consumption was achieved by appropriate choice of these parameters. The moving experimental sheet was cooled from a temperature of 900 degree of Celsia to a temperature of 50 degree of Celsia with various configurations of nozzles. The tests shown that heat transfer coefficient was increasing with water impingement density and impact velocity. Increasing water temperature from 20 degree of Celsia to 80 degree of Celsia caused a decrease of the heat transfer coefficient and Leidenfrost temperature. The effect of velocity is negligible when velocities are between 25 and 100 m/min. The cooling unit was designed according to laboratory measurements to fulfill the stainless steel producer's requirements. The measurements which were done in an industrial plant confirmed the accuracy of heat transfer coefficient obtained in the laboratory. The maximum difference between laboratory and plant measurements was 15%.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database

  • CEP classification

  • OECD FORD branch

    20303 - Thermodynamics

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2014

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Advanced Materials Research

  • ISSN

    1022-6680

  • e-ISSN

    1662-8985

  • Volume of the periodical

    936

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    5

  • Pages from-to

    1720-1724

  • UT code for WoS article

  • EID of the result in the Scopus database

    2-s2.0-84904035281