Engineering, 07.08.2019 19:30 savannahworkman11
Amultiple disc clutch, steel on bronze, is to transmit 5 hp at 750 rpm. the inner radius of contact is 1.50 in, and the outer radius of contact is 2.75 in. the clutch operates in oil with an expected friction coefficient of 0. 10. the average allowable pressure is 50 psi, maximum. a. how many total discs of steel and bronze are required? b. what is the average pressure (psi) ? c. what axial force (lb) is required ? d. what is the actual max. pressure (psi) ?
Answers: 2
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
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Engineering, 04.07.2019 18:20
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
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Engineering, 04.07.2019 19:20
Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference
Answers: 3
Engineering, 06.07.2019 03:20
Areaction-bonded silicon nitride ceramic has a strength of 250 mpa and a fracture toughness of 3.4 mpa(m)^1/2, what is the largest-sized internal flaw that this material can support without fracturing? (use y -1 in the fracture-toughness equation.)
Answers: 3
Amultiple disc clutch, steel on bronze, is to transmit 5 hp at 750 rpm. the inner radius of contact...
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