Question 55. 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.
