The drive is by V-belts from an electric motor running at 1500 r.p.m. A compressor, requiring 75000W is to run at about 500 r.p.m. The diameter of the pulley on the compressor shaft must not be greater than 1.2 meter while the centre distance between the pulleys is limited to 1.85 meter. The belt speed should not exceed 1500 m/min. Determine the number of V-belts required to transmit the power if each belt has a cross-sectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. The coefficient of friction between the belt and the pulley is 0.3. Calculate also the length required of each belt.
The drive is by V-belts from an electric motor running at 1500 r.p.m. A compressor, requiring 75000W is to run at about 500 r.p.m. The diameter of the pulley on the compressor shaft must not be greater than 1.2 meter while the centre distance between the pulleys is limited to 1.85 meter. The belt speed should not exceed 1500 m/min. Determine the number of V-belts required to transmit the power if each belt has a cross-sectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. The coefficient of friction between the belt and the pulley is 0.3. Calculate also the length required of each belt.
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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The drive is by V-belts from an electric motor running at 1500 r.p.m. A compressor, requiring 75000W is to run at about 500 r.p.m. The diameter of the pulley on the compressor shaft must not be greater than 1.2 meter while the centre distance between the pulleys is limited to 1.85 meter. The belt speed should not exceed 1500 m/min. Determine the number of V-belts required to transmit the power if each belt has a cross-sectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. The coefficient of friction between the belt and the pulley is 0.3. Calculate also the length required of each belt.
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