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The steam at the inlet is 20 bar absolute with superheat of 135 C . The steam at the outlet is 1 bar absolute and 100 C. The velocity of the steam at inlet is 3m/s, and 12 m/s at the outlet.
Calculate the factor of safety the designer must have used. The elongation in a 2-in speciman of ASTN No. 40 at failure is approximately 0.5%-1.0%.
Calculate the number of kilograms of hydrogen that pass per hour through a 6.0-mm-thick sheet of palladium having an area of 0.40 m2 at 500°C.
A golfer hits a ball , giving it a maximum height of 20 m . If the ball lands 130 m away at the level from which he hit it, what was its initial velocity?(neglect air resistance)
Oil Enters a counterflow heat exchanger at 450k with a mass flow rate of 10 kg/s and exits at 350k. A seperate stream of liquid water enters at 20 C, 5 bar.
Explore the effects of compressor pressure ratio (2 to 20 in increments) and mixture ratios (Helium and Xenon) between 0% and 90% by mole fraction of Xenon.
Find the amount of thermal energy that must be supplied to the air in the cylinder and the net work done by an individual cylinder-piston heat engine each time the cycle is executed.
A skydiver jumps from a ballon and falls freely for 6 seconds. Her parachute then opens ,decelerating her at a constant rate of 3 seconds to a velocity of 18 ft/s,which she maintains until she lands
What is the amount of recycle gas (in mol) per 100 kg of P if the concentration of water in the gas stream entering the dryer is 5.20%?
If a refrigeration cycle is operating between the same temperatures, 100 degrees C and 25 degrees C, what is the maximum COP theoretically possible?
Assuming this carbon has a bulk density of 25 lb/ft3, and if the bed must be at least 1.5 feet deep, calculate the superficial gas velocity in a bed that contains this amount of carbon.
A light truck weighs 3100 lb and is rated at 30 miles per gallon for a 60 mph highway driving on level ground. How much power must the engine produce to climb a hill with a grade of 2%, neglecting
A centrifugal pump, located above an open water tank, is used to draw water using a suction pipe (8 cm diameter). The pump is to deliver 20oC water at a rate of 0.02m3/s. The pump manufacturer has s
Apple juice at 20C is siphoned from a large tank using a constant-diameter hose. The end of the siphon is 1m below the bottom of the tank. Height of the juice in the tank is 2 m. The atmospheric pr
At the end of year 5 repair costs are $4,000 and increase $500 per year afterwards. Draw the cash flow diagram for this investment. What is the equivalent annual cost of the tracking machine over th
You have been asked to estimate the cost of 100 prefabricated structures to be sold to a local school district. Each structure provides 1,000 square feet of floor space, with 8-feet ceilings.
Stray heat transfer from the heat exchanger may be neglected. Consider constant specific heats for both water and air. Calculate the rate of entropy generation (kW/K) for the air flow.
A differential nitrogen pressure exists across a 3 mm thick steel furnace wall. After some time, steady-state diffusion of the nitrogen is established across the wall.
A particle is moving along a straight line such that its acceleration is defined as a= (-2v) m/s^2, where v is in meters per second. If v = 20 m/s when s=0, and t=0, determine the particle's positi
Steam at 400F enters an insulated turbine operating at steady state and exits at 3 lbf/in^2. If the isentropic turbine efficiency is 72%, determine the range of turbine inlet pressures that ensures
A polymer component that needs to maintain a stress level above 10 MPa for proper functioning of an assembly is scheduled to be replaced every two years as preventative maintenance.
Silicon carbide (SiC) has a specific gravity of 3.1 g/cm^3. A sintered SiC part is produced, occupying a volume of 500 cm^3 and weighing 1200 g. After soaking in water, the part weighs 1250 g.
Saturated liquid R-134a at 50 psia enters an adiabatic throttling value at a rate of 0.2-lbm/s. The outlet pressure is 15 psia. What is the outlet volumetric flow rate in ft^3/s?
Parallel plates form a solar collector that covers a roof, with a 4m long plates and 1m between plates. The plates are maintained at 15 C., while ambient air at 10 C flows over the roof with V= 2 m/
A rigid tank is divided into two equal parts by a partition. One part of the tank contains 2.5 kg of compressed liquid at 400 kPa and 60 degrees Celcius while the other part is evacuated. The partit