Chemical Engineering - Heat Transfer - Discussion
Discussion Forum : Heat Transfer - Section 8 (Q.No. 13)
13.
For a counter current heat exchanger with Tih = 80°C, T°c = 60°C, T°h = 50°C and Tic = 30°C, and the temperature difference between the two streams being the same everywhere along Z, the direction of flow of hot fluid. The temperature profile should satisfy
Discussion:
3 comments Page 1 of 1.
Philip said:
8 years ago
Can someone explain this to me?
I just know if the second derivative is zero, it means it is in the point of inflection. I thought the answer will be (D) since the first derivative is equal to zero means the function is constant which is the temperature difference in the problem.
I just know if the second derivative is zero, it means it is in the point of inflection. I thought the answer will be (D) since the first derivative is equal to zero means the function is constant which is the temperature difference in the problem.
Suraj said:
4 years ago
B is the correct answer.
Since the temperature difference is constant so the temperature profile for the cold and hot fluid in counterflow will be parallel to each other and the second derivative of a straight line is zero. So option B is correct.
Since the temperature difference is constant so the temperature profile for the cold and hot fluid in counterflow will be parallel to each other and the second derivative of a straight line is zero. So option B is correct.
Ritesh said:
7 years ago
@Philip.
If dT is constant along the Z then heat can't flow.
If dT is constant along the Z then heat can't flow.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers