Conversion calculation
Conversion calculation
(OP)
I am trying to get an idea of how long it would take to heat a train rail car above 120°F. Filled with a liquid weighing 10 lbs per gallon. Total gallons are 4,800. The total liquid weight is 48,000 lbs. Lets assume its summer time and the ambient temperature is and average 90°F.
Keith Mort
Franklin International
Technical Specialist
http://www.franklininternational.com





RE: Conversion calculation
RE: Conversion calculation
Keith Mort
Franklin International
Technical Specialist
http://www.franklininternational.com
RE: Conversion calculation
If both absorptivity coefficients (from solar radiation, and from low-temperature-radiation to the surroundings) in equilibrium are equal, say 0.95, and the solar flux is about 700 W/m2 the exposed tank wall temperature may get above 210oF, as explained by KMort.
The final temperature would depend on the heat absorption by the tank contents and any convection effects from the surrounding air.