A shell-ind-tube heat exchanger is required to be designed to lower the temperature of 150,000 lbin/h of toluene from 200F to 140F. Cooling water available at 90F is to be used for this purpose where the outlet temperature of the cooling water is not to exceed 120F. The toluene stream is non-corrosive and has 1/4 times the fouling factor of water. The fouling factor of water shell-and-tube heat exchanger desired for this service and do single trial only. Give your suggestions for the second triah, assuming pressure drop is in the range. Other data