Question

2. (25 pts) Nuclear power plants have large amounts of heated water to cool, which may be done in a cooling tower. A sample tower reduces the temperature of warm water from 130 F to 90'F (see figure at right). Air without water vapor flows into the tower at Wet air 156,900 b/hr 151,000 lb/hr Given that the air removing heat along with some water flows at 156,900 lb/hr, what is the flowrate of the cooled warm water 250,000 lb/hr a. water in lb/hr? What is the rate of water evaporation in lb/hr? b. Dry air 51,000 lb/h Cooled water

Answer 1

(a) Net tow rate should be zevo CAssuing Movsrote inide the coolingtower is -we and Howrote outside is -ve warm water wwrote aur Wet aur. Rate water eNaporation (b) Rat