Determine Water Flow For Steel Cooling

[danielgp1990]

Hello everybody,
I´m having trouble with a steel cooling system because Heat Tranfer it´s not my area of expertise. First I must determine the water flow that it´s necessary to cool a 7 m^2 steel surface from 550°C to 200°C using 9 sprinklers. The steel is an A-36 12mm curved wall and water should be 20°C and the heat tranfer to the enviroment is neglectable.
Can you please help me find the proceeding that is necessary to determine the water flow. Any books or any other references would be much appreciated too.

 

[racookpe1978]

No.

This sounds like a typical homework problem, but mainly because it fails to identify ANY of the critical needed information.

Is the wall vertical or horizontal?
How can you claim losses to the environment are negligible? They are NOT negligible in the real world.
What is the exact configuration of the cooling chamber?
Is the back side of the wall insulated, or are both sides of the wall sprayed?
Doesn't the water evaporation/phase change matter? (500 -> 200 deg C "cooling" IS above boiling temperature of water at STP and this becomes a steam-generation problem ya know since the output of the plate comes out still above boiling!)
Does your metallurgy care if the steel comes out below 200 deg C over wide areas, or must all of the plate stay at least that hot?
Plate temperatures are going to vary considerably - What are your temperature and time-at-temperature tolerances?
How long is the steel in the spray chamber?
What is the radius of the 12 mm curved steel, or is this some kind of 2-d steady-state assumption?