AME 331, Spring
2008
Problem set #7
Assigned: April 18, 2008
Due: April 25, 2008, 4:30 pm in OHE 430
Concept
|
Problem (Holman) |
Points |
Answer |
|
Overall heat
transfer coefficient |
10-5 |
15 |
1067 W/mūC |
|
Comparison of
LMTD and effectiveness-NTU |
10-8 |
20 |
|
|
Shell and tube
heat exchanger |
10-16 |
15 |
5.24 m2 |
|
Counterflow
heat exchanger |
10-24 |
15 |
|
|
Heat exchanger
effectiveness |
10-46 |
20 |
Co-flow: e = (1-e-2*NTU)/2 Counter-flow: e = NTU/(1+NTU) |
|
Humongous heat
exchanger (note hot side temperature = constant = 100ūC) |
10-67 |
15 |
|