MCQOPTIONS
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MCQOPTIONS
| 1. |
_ The overall heat transfer co-efficient for a shell and tube heat exchanger for clean surfaces is U0 = 400 W/m².K. The fouling factor after one year of operation is found to be hd0 = 2000 W/m².K. The overall heat transfer co-efficient at this time is$? |
| A. | 1200W/m².K |
| B. | 894W/m².K |
| C. | 333W/m².K |
| D. | 287 W/m².K |
| Answer» D. 287 W/m¬¨‚â§.K | |