Chemical Engineering Question: Download Chemical Engineering PDF
Are there any alternatives to scraping a shell and tube if a capacity increase will make the pressure drop across the exchanger too large?
Answer:
When an increase in capacity will cause excessive pressure drop, you may not have to junk the heat exchangers. A relatively inexpensive alteration is to reduce the number of tube passes. Other possibilities are arranging the exchangers in parallel or using lowfins or other special tubing. Source: Gulley Computer Associates