Heat Transfer
Overall heat transfer co-efficient for cooling of hydrocarbons by water is about

1000 - 1500 BTU/hr. ft.2°F
50 -100 Kcal/hr.m².°C
50 -100 W/m² . °K
50 -100 BTU/hr. ft.2°F

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Heat Transfer
Leidenfrost point is a term concerned with the

Heat transfer between two highly viscous liquids
Condensation of the saturated vapor on a cold surface
Boiling of a liquid on a hot surface
Concentration of a corrosive solution by evaporation

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