1. Bell, K.J., 1963, Final report of the cooperative research program on shell and tube heat exchangers, University of Delaware Engineering Experimental Station Bulletin No. 5, Newark, Delaware.
2. Delaware method for shell side design;Bell,1981
3. How to design the optimum heat exchanger;Cichelli;Chem Engng,1956
4. Optimum heat exhanger design;Jegede;Trans IChemE Part A,1992