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The radial loads of both gears are in the same plane, and are 2.7 kN for the pinion and 900 N for the gear. The shaft speed is 1200 rev/min. Perform a force analysis to find the bearing reaction forc
A refrigeration system, using R-22 as the working fluid, has condenser and evaporator pressures of 250 psi and 30 psi, determine the coefficient of performance of the system.
If at the beginning of the compression stroke the pressure is 14.7 psi and the temperature is 80 F, determine: p and T at each point of the cycle.
If a system has two redundant safety systems with failure rates of 0.16 and 0.22 faults per year respectively, what is the reliability and probablility of failure of the overall system? what is the
A 400 gallon cylindrical tank is filled with water. A valve is opened at the bottom of the tank. Determine how much water will remain in the tank after 60 minutes of draining.
Determine the entropy change of the water, in kJ/kg ·K. Is this process realistic? Using the T-s diagram for the process and the concepts of second law, support your answer.
The compressor is cooled by the ambient air at 15 °C at a rate of 1500 kJ/min. The power input to the compressor is 300 kW. Determine (a) the mass flow rate of air and (b) the rate of entropy g
An ideal vapor-compression refrigeration cycle opperates at steady state with refrigeratn 134a as the working fluid. Determine refrigerating capacity in tons.
The angle with the vertical of a swinging simple pendulum obeys the equation. What is the mass of the swinging bob at the end of the pendulum?
To remove the organic gases and the particles, the flow is sent to a thermal oxidizer, where natural gas flames bring the mixture to 800 degrees C, find the rate of heating by the natural gas burner
Determine the first law thermal efficiency and compare it to that of a Carnot cycle operating between the same temperature extremes.
The tunnel is located in Boulder, Colorado ( altitude = 1650 m, density = 1.044 kg/m^3), and the flow is assumed isentropic. What is the density at the test section?
Assume the gas to be air, and assume it to behave like an ideal gas. Calculate the final temperature of the gas and change in entropy per unit mass during this expansion.
How will you develop a component machining process plan for each of these materials? How will you estimate the machining power requirements?
Derive an expression for the final chip temperature (θ) in terms of the specific cutting energy (ps), specific heat capacity of the work material (cp), and density of the work material.
Determine the new velocity v' of the center of the disk as it starts up the incline, and find the fraction n of the initial energy which is lost becuase of the impact with the incline of theta=10 de
The main purpose of this heat exchanger is to prevent liquid from entering the compressor and damaging it. Known data are: T1=30 °C, T2=10 °C and T4= -10 °C. What are C of P and T(6)?
If the speed v of the tape is constant, and if the magnitude of the acceleration of point A on the tape is 4/3 times that of point B, calculate the radius r of the smaller pulley.
The duration of the impact is 0.002 seconds. Determine the magnitude of the average horizontal force exerted on the bar by the pin support as a result of the impact.
A tank of 50 cubic feet contains saturated ammonia at 100 F and a quality of 50%. Vapor is withdrawn from the top of the tank until the temperature is 50F. The process is adiabatic.
A rigid tank has 0.1 kg saturated vapor R-410a at 0 celsius that is cooled to -20 celius by a -20 celcius heat sink. Show the process in a T-s diagram.
Determine the solar elevation at solar noon for winer solstice, equinox, and summer solstice for elevations 30, 40, and 50. What is the angle of the solar radiation on a south facing solar collector f
Steam at 1 MPa, 630.2oC, expands in an insulated piston cylinder assembly to 0.01 MPa. Determine the maximum work (kJ) done during the process if the initial volume is 0.126 m3.
Three kilograms of air is in a piston/cylinder keeping constant pressure at 27 celsius, 300 kPa. It is not heated to 500K. Plot the process path in a T-s diagram and find the heat transfer in the p