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Chemical and Process Engineering Resources

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Category: Heat Transfer Technology
Question: Are there any alternatives to scraping a shell and tube if a capacity increase will make the pressure drop across the exchanger too large?
Keywords: shell,tube,exchangers,capacity,increase,pressure,drop,scrap
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