KNORN: Thin. venical plates of length 0.15:}; at 54°C being cooled in a water bath at 20°C.
FIND: Nitnimnm spacing bemeen plates such that no mtexferencc will occur between ee-convection
7; 2 54 °C
March 07, 2013
1. The local heat transfer coefcient hx for flow over a flat plate with an extremely
rough surface is as follows: 2 I
hx(x) = ax'M
where a is a constant and x (m) is the distance from the leading edge of the plate.
(a) What are the u
ChE 433 February 5, 2013
(1) Consider a plane wall (constant properties) with no internal heat generation, Z
initially at a uniform temperature, T.-. Suddenly, the surface at x=L is exposed to a /
uid at T0, having a convection coeffic