Download Aptitude Crack
img not found img not found

Heat Transfer

Q1: In a parallel flow heat exchanger, if the outlet temperature of hot and cold fluids are the same, then the log mean temperature difference (LMTD) is

A minimum

B maximum

C zero

D infinity

ANS:C - zero

In a parallel flow heat exchanger, if the outlet temperature of the hot and cold fluids are the same, then the log mean temperature difference (LMTD) is zero. The LMTD is calculated as the logarithmic average of the temperature differences between the hot and cold fluids at the inlet and outlet. When the outlet temperatures of the hot and cold fluids are the same, both temperature differences become zero, resulting in a zero LMTD. Therefore, the correct option is: zero



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.