1. A cooling tower has an efficiency of 65%. Water enters the tower at 55°C. The wet bulb temperature of surrounding air is 27°C. What is the temperature of water leaving the tower? a. 36.8°C b. 44.5°C c. 46.9°C d. 30.4°C
1. A cooling tower has an efficiency of 65%. Water
enters the tower at 55°C. The wet bulb
temperature of surrounding air is 27°C. What is
the temperature of water leaving the tower?
a. 36.8°C b. 44.5°C
c. 46.9°C d. 30.4°C
2. The change of temperature entering the cooling
tower and wet bulb temperature of surrounding
air is 25°C and efficiency is 65%. If mass of
water leaving the tower is 10 kg/s, determine
the heat carried by air.
a. 720 kW b. 540 kW
c. 680 kW d. 700 kW
3. The approach and efficiency of cooling tower is
10°C and 60%, respectively. If temperature of
water leaving the tower is 37°C, what is the
temperature of water entering?
a. 46°C b. 52°C
c. 68°C d. 48°C
4. A cooling tower is used to cool a jacket water
loss from the engine. The heat generated by
fuel is 2,500 kW and cooling loss is 30%. If
temperature range of the tower is 15°C.
Determine the mass flow of water entering the
tower.
a. 12 kg/s b. 14 kg/s
c. 16 kg/s d. 18 kg/s
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