A 300-HP engine with a thermal efficiency of 30% is using a remote radiator which absorbs 25% of the heat supplied to the engine. Cooling system with cooling tower is used with a cooling range of 5°C. The temperature rise of the water after passing the remote radiator is 10°C. Air enters the cooling tower at 32°C dry-bulb; 26°C wet-bulb temperatures and leaves the tower at 36°C & 70%RH. Make a schematic diagram of the system, the process in the provided psychrometric chart and calculate the following: (a.) The water flow rate in the cooling tower in liters per hour, and (b.) If the heat absorbed by air is 20% of heat absorbed by the cooling tower water, what is the air flow needed in cu.m/hour.
A 300-HP engine with a thermal efficiency of 30% is using a remote radiator which absorbs 25% of the heat supplied to the engine. Cooling system with cooling tower is used with a cooling range of 5°C. The temperature rise of the water after passing the remote radiator is 10°C. Air enters the cooling tower at 32°C dry-bulb; 26°C wet-bulb temperatures and leaves the tower at 36°C & 70%RH. Make a schematic diagram of the system, the process in the provided psychrometric chart and calculate the following: (a.) The water flow rate in the cooling tower in liters per hour, and (b.) If the heat absorbed by air is 20% of heat absorbed by the cooling tower water, what is the air flow needed in cu.m/hour.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:A 300-HP engine with a thermal efficiency of 30% is using a remote radiator which absorbs 25% of the heat supplied to the engine.
Cooling system with cooling tower is used with a cooling range of 5°C. The temperature rise of the water after passing the remote
radiator is 10°C. Air enters the cooling tower at 32°C dry-bulb; 26°C wet-bulb temperatures and leaves the tower at 36°C &
70%RH. Make a schematic diagram of the system, the process in the provided psychrometric chart and calculate the following:
(a.) The water flow rate in the cooling tower in liters per hour; and
(b.) If the heat absorbed by air is 20% of heat absorbed by the cooling tower water, what is the
air flow needed in cu.m/hour.
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