Thursday, January 7, 2010

What relationship exists between the temperature of the oil and its flow rate?

As oil temperature rises its viscosity decreases (much faster than its density) and this is what causes an increased flow rate.What relationship exists between the temperature of the oil and its flow rate?
Fromula : Flow Velocity





V = (g x h2 - 脫 sin A) / 3 脡





where


V = velocity of the flow


g = coefficient of gravity (9.807 m/s2)


A = is the angle of the slope


h = depth of the flowing liquid


脫 = density of the liquid g/cm3)


脡 = Coefficient of viscosity





Oil becomes less dense as its temprature rises. This results in an overall increase in the flow rate.

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