Фv is generally taken as 1 in food processing as generally very high wall temperatures aren’t reached and hence (µ/µw) * 0.14 is 1 as there isn’t much difference in µ and µw.
(a) True
(b) False
This question was addressed to me by my school principal while I was bunking the class.
My enquiry is from Unit Operations topic in division Heat Transfer by Conduction, Convection and Radiation of Food Engineering