Question
In a chemical plant revamp process, a section consisting of 4 streams are selected for energy optimization. (Pinch Analysis) a) Determine the total external energy
In a chemical plant revamp process, a section consisting of 4 streams are selected for energy optimization. (Pinch Analysis)
a) Determine the total external energy requirement for minimum temperature difference approach of 10 degree Celcius. Discuss the influence of Stream 3 on the total external energy requirement.
b) Discuss the influence of Stream 3 and minimum temperature difference approach on the total external energy requirement, if the minimum temperature difference approach increases from 10C to 20C. Show in-depth calculations to support discussion. Which approach gives the lowest total external energy requirement?
Stream | Inlet Temp. (0C) | Outlet Temp. (0C) | CP (kW/K) |
Cold 1 | 10 | 70 | 3.05 |
Cold 2 | 37.8 | 87.8 | 3.98 |
Hot 3 | 79.4 | 79.3 | 10390 |
Hot 4 | 86.9 | 10 | 3.017 |
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