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Determine the minimum mass flow rate (kg/s) of the water so that the water not completley vaporize. Neglect the pressure drop through the exchanger and assume a saturated vapor state.
If the roller radius is 0.375 in and the prime-circle radius is 2 in, construct the displacement diagram, the pitch curve, and the cam profile for clockwise cam rotation.
An astronaut on the planet Vimrom IV finds that she can jump a maximum horizontal distance of 13.00 m if her initial speed is 3.90 m/s. What is the acceleration due to gravity on this planet?
A solid cylinder has a mass of 5kg, a diameter of 9cm and is 60cm high. it starts at point A and must be moving at 2m/s so it slides on to a convyer belt (moving at 2m/s) at point D.
Nitrogen gas flows into a convergent nozzle at a pressure of 225kPa, a temperature of 440K. What is the velocity of the Nitrogen at the exit of the nozzle?
Determine the change in specific entropy (kJ/kg-K) for air undergoing a process from state 1 (T1 = 300 K, P1 = 109 kPa) to state 2 (T2 = 876 K, P2 = 467 kPa).
Calculate the average distance moved in one day by smoke particles in air for the following cases: (a) smoke diffuses in air with a diffusion coefficient of 10-7 m2/s.
Inlet 1 is a saturated vapor with a flow rate of 0.34 kg/s, and inlet 2 is at 40oC with a flow rate of 0.242 kg/s. Determine the rate of entropy production in the mixing box (kW/K). Assume steady st
What should be the total cross sectional area of the air intakes (for the radiators) if the velocity of the air (normal to the inlet area) is equal to the speed of the car?
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.