engine radiator size to disipate 2131875 btuh at 0ft, 5000ft, 9200ft in sq ft

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Clarification of Question by therail-ga on 14 Sep 2004 09:22 PDT

engine radiator size to disipate 2131875 btuh at 0ft, 5000ft, 9200ft in sq ft

Coolant = 50% Propylene glycol (or a standard diesel engine coolant package)

Temperature of coolant = 185 in, 147 out

Ambient air maximum = 110f @ 0ft, 100f @ 5000ft, 90f @ 9200ft

Air condition = forced (fan cooled coil)

Engine Radiator em is sized for worst conditions.  System includes
heat load for hydrostatic transmission cooling and water cooled charge
air cooling

Insufficient data to answer. Req to know :-

1)Coolant.
2)Temperature of coolant.
3)Ambient air temp.
4)Airflow conditions -- free air or forced?
5)Any other relevant details.

Bear in mind also that blow-off temperature in most systems is
dependent upon differential pressure, but not a lot of difference if
restricted to 9200ft.

Best

Coolant = 50% Propylene glycol (or a standard diesel engine coolant package)

Temperature of coolant = 185 in, 147 out

Ambient air maximum = 110f @ 0ft, 100f @ 5000ft, 90f @ 9200ft

Air condition = forced (fan cooled coil)

Engine Radiator em is sized for worst conditions.  System includes
heat load for hydrostatic transmission cooling and water cooled charge
air cooling

I was going to suggest a quick and dirty by comparing a truck radiater
and scaling to your requirement but 2131875 btuh (btu/h)is a rate of
about 625 kilowatts. That's one mighty big diesel motor -- if your
thing is a motor.
Fraid it would take me all night to work it out -- perhaps with your
added detail someone with a computational fluid dynamics (CFD)package
will take pity. Have a look at :-

http://www.cyclone.nl/hdt/hdt.htm

http://www.heat-synch.com/HeatSheet3/HeatSheet3.html

http://www.sftechnology.com/heat_transfer_calculator.cfm



Best