Answer:
a. 2.832kw
b. 25.488kw
c. 0.118kg/s
Explanation:
Please look at attachment carefully
The effectiveness for a heat exchanger is 0.6428.
<u>Explanation:</u>
a) Sketch the temperature profiles for a 50% and 80% effectiveness heat exchanger.
The heat transfer type was not mentioned.
Assume the heat exchanger which is counter flow and the heat exchanger performance is high.
In the cold fluid stream, the 80% of effective heat exchanger compares the 50% of heat exchanger.
The diagram was attached below.
b) The effectiveness for a heat exchanger is calculated.
Given data
= 2 lb/s
= 160 F
= 4 lb/s
= 110 F
= 20 F
ε =
From tables,
= 1.001 Btu / lb ° F
×
= 1.001 × 2
= 2.002
= 0.24 Btu / lb ° F
= ×
= 0.24 × 4
= 0.96
ε =
=
ε = 0.6428
The given question is incomplete as the equation given is not making sense.
From internet source i have taken the complete question and its been attached below.
The solution to the question is also attached in next image with complete detail.
<h3> I hope it will help you a lot!</h3>
Answer:
- 3/5" = 12'
- 1 3/4" = 35'
- 1 1/4" = 25'
- 9/10" = 18'
- 2 13/20" = 53'
Explanation:
One number is wrong; they all lack units.
The basic ratio is 1" = 20', so you can divide feet by 20 to find inches.
- 3/5" = 12'
- 1 3/4" = 35'
- 1 1/4" = 25'
- 9/10" = 18'
- 2 13/20" = 53'
Perhaps you want decimal inches:
- 0.60" = 12'
- 1.75" = 35'
- 1.25" = 25'
- 0.90" = 18'
- 2.65" = 53'