Effectiveness for counterflow heat exchanger
NTU | Capacity rate ratio, Cmin/Cmax | ||||
0 |
0.25 |
0.50 |
0.75 |
1.00 |
|
0 |
0 |
0 |
0 |
0 |
0 |
0.25 |
0.221 |
0.216 |
0.209 |
0.205 |
0.200 |
0.50 |
0.393 |
0.378 |
0.362 |
0.347 |
0.333 |
0.75 |
0.528 |
0.502 |
0.476 |
0.452 |
0.429 |
1.00 |
0.632 |
0.598 |
0.565 |
0.532 |
0.500 |
1.25 |
0.713 |
0.674 |
0.635 |
0.598 |
0.556 |
1.50 |
0.777 |
0.735 |
0.691 |
0.645 |
0.600 |
1.75 |
0.826 |
0.784 |
0.737 |
0.687 |
0.636 |
2.00 |
0.865 |
0.823 |
0.774 |
0.722 |
0.667 |
2.50 |
0.918 |
0.880 |
0.832 |
0.776 |
0.714 |
3.00 |
0.950 |
0.919 |
0.874 |
0.817 |
0.750 |
3.50 |
0.970 |
0.945 |
0.905 |
0.848 |
0.778 |
4.00 |
0.982 |
0.962 |
0.927 |
0.873 |
0.800 |
4.50 |
0.989 |
0.974 |
0.944 |
0.893 |
0.818 |
5.00 |
0.993 |
0.982 |
0.957 |
0.909 |
0.833 |
¥ |
1 |
1 |
1 |
1 |
1 |