| Application | Forced Circulation Evaporator Waste Water Stream | |
| Industry | Food | |
| Fouling Issue / Frequency |
The waste stream of an alcohol plant had to be concentrated by evaporation (to be used as feed for livestock), because the company foresaw that disposal will be forbidden by new legislation. Conventional heat exchangers are not considered because the severe fouling liquid would cause a blockage in just a few hours. |
|
| Solution / Approach |
Self-cleaning heat exchanger with external circulation, with a heat transfer surface of 85 m2. |
|
| Process Conditions | Tube | Shell |
|---|---|---|
| Medium | Waste Stream | Condensing Steam |
| Pressure | 0.29 bara | 0.67 bara |
| Temperature | In: 62oC Out: 68oC |
Condensing at 88oC |
| Flow | 177 m3/h | 900 kg/h |
| Dimensions | |
|---|---|
| Number of Tubes | 97 |
| Length of Tubes | 6 m |
| Diameter Tubes | 32 mm |
| Particle Type | Stainless Steel |
| Particle Size | 2.5 mm |
| Results |
Almost 20 years of operation |
