Question

It is given that rate of heat transfer in convection is directly proportional to area of plate across which fluid flows$A$,density of fluid ($\rho$), velocity of flow ($V$),temperature difference ($t$) with proportionality constant of 2 units.Also fluid is flowing across edge to edge on a square plate of side length of 0.1 unit with density of fluid is 10 units and velocity of 2 units. Then what will be the rate of heat conducted through the plate if temperature difference between plate and fluid is unity?(assume that all $units$ are in international standards)

Answer 1

According to question:

$\frac{d\theta }{d\alpha }\alpha Avt\rho$

Where, A=Area

v= velocity flow

t= temperature difference

$\rho$=density

Rate$=2\times \frac{{\left(0.1\right)}^2}{100}\times 1\times 10\times 2$

$=0.4Joule/second.$