Question

“All of the coolant is at a uniform temperature, Tc”, is this statement correct according to the assumptions for the Unsteady-state energy balance?

(a) True

(b) False

This question was addressed to me at a job interview.

My question is from Solving Unsteady in division Unsteady – State Material and Energy Balances of Bioprocess Engineering

Answer 1

(a) True

In the context of unsteady-state energy balances, it is often assumed that the coolant is at a uniform temperature, TcT_cTc​, for simplicity. This assumption is made to simplify the analysis and calculations, assuming that there is no significant temperature gradient within the coolant. This helps in focusing on the thermal dynamics of the system rather than complex variations in the coolant temperature.