8. A blower is driven by an electric motor though a belt drive. The motor runs at 750 r.p.m. For this power transmission, a flat belt of 8 mm thickness and 250 mm width is used. The diameter of the motor pulley is 350 mm and that of the blower pulley 1350 mm. The centre distance between these pulleys is 1350 mm and an open belt configuration is adopted. The pulleys are made out of cast iron. The frictional coefficient between the belt and pulley is 0.35 and the permissible stress for the belt material can be taken as 2.5 N/mm² with sufficient factor of safety. The mass of a belt is 2 kg per metre length. Find the maximum power transmitted without belt slipping in any one of the pulleys. [Ans. 35.9 kW]

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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8.
A blower is driven by an electric motor though a belt drive. The motor runs at 750 r.p.m. For this
power transmission, a flat belt of 8 mm thickness and 250 mm width is used. The diameter of the
motor pulley is 350 mm and that of the blower pulley 1350 mm. The centre distance between these
pulleys is 1350 mm and an open belt configuration is adopted. The pulleys are made out of cast iron.
The frictional coefficient between the belt and pulley is 0.35 and the permissible stress for the belt
material can be taken as 2.5 N/mm² with sufficient factor of safety. The mass of a belt is 2 kg per metre
length. Find the maximum power transmitted without belt slipping in any one of the pulleys.
[Ans. 35.9 kW]
Transcribed Image Text:8. A blower is driven by an electric motor though a belt drive. The motor runs at 750 r.p.m. For this power transmission, a flat belt of 8 mm thickness and 250 mm width is used. The diameter of the motor pulley is 350 mm and that of the blower pulley 1350 mm. The centre distance between these pulleys is 1350 mm and an open belt configuration is adopted. The pulleys are made out of cast iron. The frictional coefficient between the belt and pulley is 0.35 and the permissible stress for the belt material can be taken as 2.5 N/mm² with sufficient factor of safety. The mass of a belt is 2 kg per metre length. Find the maximum power transmitted without belt slipping in any one of the pulleys. [Ans. 35.9 kW]
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