Download Aptitude Crack
img not found img not found

Heat Transfer

Q1: In counter flow compared to parallel flow,

A LMTD is greater.

B less surface area is required for a given heat transfer rate.

C both (a) and (b).

D more surface area is required for a given heat transfer rate.

ANS:C - both (a) and (b).

In counterflow compared to parallel flow:

  1. LMTD (Logarithmic Mean Temperature Difference) is greater. This is one of the advantages of counterflow heat exchangers because it leads to higher heat transfer rates.
  2. Less surface area is required for a given heat transfer rate. Counterflow heat exchangers typically require less surface area compared to parallel flow heat exchangers for the same heat transfer rate. This is because the temperature difference driving the heat transfer is more effectively utilized in counterflow.
So, the correct answer is: "both (a) and (b)."



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.