Example.3. A fan of diameter 0.7m running at 1500r.p.m. delivers 140m /min of air at 15°C against 75mm of water of total pressure when its total efficiency is 86 percent. Determine the volume of air delivered, total pressure developed and horsepower consumed, if (a) the air temperature is 50°C, (b) the air temperature is 50°C and the fan speed is increased to 1700r.p.m (c) the conditions are same as in (b) but a 0.6m diameter, geometrically similar fan is used.

Example.3. A fan of diameter 0.7m running at 1500r.p.m. delivers 140m /min of air at 15°C against 75mm of water of total pressure when its total efficiency is 86 percent. Determine the volume of air delivered, total pressure developed and horsepower consumed, if (a) the air temperature is 50°C, (b) the air temperature is 50°C and the fan speed is increased to 1700r.p.m (c) the conditions are same as in (b) but a 0.6m diameter, geometrically similar fan is used.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 83AP: A hand-driven tire pump has a piston with a 2.50-cm diameter and a maximum stroke of 30.0 cm. (a)...

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