| |
Observed problem |
|
Problem source |
|
Corrective measure |
| 1. |
High pressure drop across process side of condenser |
1a. |
Shellside or tubeside fouling |
1a. |
Clean inside or outside surface of tubes |
| |
|
1b. |
Cooling water temperature higher than design |
1b. |
Reduce cooling water temperature or increase flow rate |
| |
|
1c. |
Low cooling water flow rate |
1c. |
Increase cooling water flow rate |
| |
|
1d. |
Higher than design condensible organics/hydrocarbon loading
|
1d. |
Reduce organic/hydrocarbon loading or install larger condenser |
| 2. |
High cooling water pressure drop |
2a. |
Waterside fouling or blockage |
2a. |
Clean tubing |
| |
|
2b. |
Higher than design cooling water flow rate
|
2b. |
Not a problem |
| 3. |
Higher than design cooling water temperature rise |
3a. |
Low cooling water flow rate |
3a. |
Increase cooling water flow rate |
| |
|
3b. |
Higher than design condensible vapor loading |
3b. |
Increase cooling water flow rate or install larger condenser
|
| 4. |
High vapor outlet temperature |
4. |
Poor vacuum system performance |
4a. |
Clean tubing because it is fouled |
| |
|
|
|
4b. |
Cooling water flow is increased or inlet temperature is reduced |
| |
|
|
|
|
Condenser internals have a mechanical problem that requires repair |
| |
|
|
|
4d. |
There is a problem with a downstream ejector and it is backstreaming
|
