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Q#1
Evaporation
GATE CH 2022
NAT
+2 marks
-0 marks
A single-effect evaporator with a heat transfer area of 70 m2 concentrates a salt solution using steam. The salt solution feed rate and temperature are 10000 kg h-1 and 40 °C, respectively. The saturated steam feed rate and temperature are 7500 kg h-1 and 150 °C, respectively. The boiling temperature of the solution in the evaporator is 80 °C. The average specific heat of the solution is 0.8 kcal kg-1 K-1.The latent heat of vaporization is 500 kcal kg-1. If the steam-economy is 0.8, the overall heat transfer coefficient is ________ kcal h-1 m-2 K-1 (rounded off to the nearest integer).
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Browse Practice Questions by Chapters / Topics in Browse Practice Questions by Chapters / Topics in GATE Chemical Engineering
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| Topic | Questions | Attempted | Correct | |
|---|---|---|---|---|
| Heat Transfer | 26 | 0 | 0 | |
| Chemical Technology | 17 | 0 | 0 | |
| Mechanical Operations | 12 | 0 | 0 | |
| Mass Transfer | 42 | 0 | 0 | |
| Instrumentation and Process Control | 26 | 0 | 0 | |
| Fluid Mechanics | 24 | 0 | 0 | |
| Engineering Mathematics | 41 | 0 | 0 | |
| General Aptitude | 60 | 0 | 0 | |
| Chemical Reaction Engineering | 26 | 0 | 0 | |
| Process Calculation | 9 | 0 | 0 | |
| Plant Design Economics | 10 | 0 | 0 | |
| Thermodynamics | 24 | 0 | 0 |
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