A polyamide A-3 flat belt 6 in wide is used to transmit 15 hp under light shock con- ditions where K, = 1.25, and a factor of safety equal to or greater than 1.1 is appro- priate. The pulley rotational axes are parallel and in the horizontal plane. The shafts are 8 ft apart. The 6-in driving pulley rotates at 1750 rev/min in such a way that the loose side is on top. The driven pulley is 18 in in diameter. See Fig. 17-10. The fac- tor of safety is for unquantifiable exigencies. (a) Estimate the centrifugal tension F. and the torque T. (b) Estimate the allowable F1, F2, F; and allowable power H.. (c) Estimate the factor of safety. Is it satisfactory?

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Q: 02 A conical clutch an included angle of 60°. the outer radius and inner diameters are 80 and 20 cm…

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Q: A pulley 500 mm diameter is driven at 375 rev/min by a belt 200 mm wide by 12 mm thick. The tension…

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Q: A 500 pound weight is attached to a cable that is being lifted by a 10 inch diameter drum.  The 48V…

A: GIven data: The diameter of the drum is d=10 in The weight attached to the cable is Ft=500 lb The…

Q: shown below. The coefficient of friction for the screw is f = 0.06 and friction du negligible f≈ 0.…

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Q: A bike chain can support a tension of no more than 9800 N. The pedal connects to a crank 17 cm from…

A: Draw a diagram for the problem showing the tension in the chain and the force applied on the pedal.…

Q: Q6 Engine developing power at 1000rpm is fitted with a cone clutch having the face width of the…

A: To calculate the mean diameter of the cone clutch, developing power and the constructionspeed of the…

Q: A selfpropelled truck of total mass 25 tonnes and wheel diameter 750 mm runs on a track for which…

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Q: For the same question, the Impeller hub will be pressed onto the taper shaft with the Nut. How much…

A: given data; ⇒engine power(P)=27kw                        =27*103w⇒speed (n)=1684rpm⇒conical…

Q: A flat belt is required to transmit 35 kw from a pulley of 1.5 m effective diameter running at 300…

A: Given:P=35 KWd=1.5 mN=300 rpmθ=1124*2πμ=0.3t=10 mm

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.