Determine the installed cost, tube length, and number of tubes for the optimum exchanger that will meet the following operating conditions and specifications:
(a) Twenty thousand pounds of air per hour is cooled from 150 to 100°F inside the tubes of a shell-and-tube exchanger.
(b) Water is used as the cooling medium. The water enters the unit at 70°F and leaves at 100°F.
(c) All other conditions are the same as those specified in Example 5 of this chapter, except that Bi is not given. 8. Present a detailed derivation of Eq. (481 in this chapter, using, as a starting point, any of the other equations that are given.