Water Temperature Effect on Cooling Intensity for high Pressure Descaling Nozzles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU108663" target="_blank" >RIV/00216305:26210/14:PU108663 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Water Temperature Effect on Cooling Intensity for high Pressure Descaling Nozzles

Popis výsledku v původním jazyce

During continuous production in rolling mills, the hot steel is exposed to an oxidative atmosphere and oxide layers are formed on the surface. The oxide scale is typically removed using flat fan water nozzles fed by high pressure water in a process of hydraulic descaling. Use of these nozzles causes very intensive cooling, which is in most cases objectionable. One way to decrease this intensive cooling is to use water at a higher temperature. Laboratory experiments were conducted to study the degree ofinfluence the water temperature has on the heat transfer coefficient during cooling using the high pressure nozzles. Temperature measurements during descaling were used as input for inverse algorithm calculations. The heat transfer coefficients togetherwith surface temperatures were computed as a function of time and position. The results obtained for various water temperatures were compared and a slight decrease in the cooling intensity was found for higher water temperatures. The reas

Název v anglickém jazyce

Water Temperature Effect on Cooling Intensity for high Pressure Descaling Nozzles

Popis výsledku anglicky

During continuous production in rolling mills, the hot steel is exposed to an oxidative atmosphere and oxide layers are formed on the surface. The oxide scale is typically removed using flat fan water nozzles fed by high pressure water in a process of hydraulic descaling. Use of these nozzles causes very intensive cooling, which is in most cases objectionable. One way to decrease this intensive cooling is to use water at a higher temperature. Laboratory experiments were conducted to study the degree ofinfluence the water temperature has on the heat transfer coefficient during cooling using the high pressure nozzles. Temperature measurements during descaling were used as input for inverse algorithm calculations. The heat transfer coefficients togetherwith surface temperatures were computed as a function of time and position. The results obtained for various water temperatures were compared and a slight decrease in the cooling intensity was found for higher water temperatures. The reas

Druh

O - Ostatní výsledky

CEP obor

BJ - Termodynamika

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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