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The diameter of the pulley on the compressor shaft must not be greater than 1.2 metre while the centre distance between the pulleys is limited to 1.85 metre. A compressor, requiring 95000W is to run at about 500 r.p.m. The drive is by V- belts from an electric motor running at 1500 r.p.m. The belt speed should not exceed 1500 m/min. The coefficient of friction between the belt and the pulley is 0.3. Determine the number of V-belts required to transmit the power if each belt has a crosssectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. Calculate also the length required of each belt.

The diameter of the pulley on the compressor shaft must not be greater than 1.2 metre while the centre distance between the pulleys is limited to 1.85 metre. A compressor, requiring 95000W is to run at about 500 r.p.m. The drive is by V- belts from an electric motor running at 1500 r.p.m. The belt speed should not exceed 1500 m/min. The coefficient of friction between the belt and the pulley is 0.3. Determine the number of V-belts required to transmit the power if each belt has a crosssectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. Calculate also the length required of each belt.

Elements Of Electromagnetics
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 diameter of the pulley on the compressor shaft must not be greater than 1.2 metre while the centre distance between the pulleys is limited to 1.85 metre. A compressor, requiring 95000W is to run at about 500 r.p.m. The drive is by V- belts from an electric motor running at 1500 r.p.m. The belt speed should not exceed 1500 m/min. The coefficient of friction between the belt and the pulley is 0.3. Determine the number of V-belts required to transmit the power if each belt has a crosssectional area of 3 cm2, density 1100 kg/m3 and an allowable tensile stress of 3 MPa. The groove angle of the pulley is 50°. Calculate also the length required of each belt.
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