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A gas-turbine power plant operates on the simple Brayton cycle with air as the working fluid and delivers 32 MW of power. The minimum and maximum temperatures in the cycle are 310 and 900 K, and the pressure of air at the compressor exit is 8 times the value at the compressor inlet. Assuming an isentropic efficiency of 80 percent for the compressor and 86 percent for the turbine, determine the mass flow rate of air through the cycle. Account for the variation of specific heats with temperature.
your company wants to launch a new product. rampd including prototypes and manufacturing process development will take
A heat engine (HE) of 35 % thermal efficiency is used to drive a refrigerator having a COP of 4 , what is the heat input into the engine for each MJ removed from the cold body by the refrigerator? If this system is used as a heat pump, how many MJ of..
a medical warmer operates using a heat pump. saturated r-12 enters the compressor at a temperature of -10 c and exits
The static pressure of a location inside moving fluid is measured by a measuring sensor. What happens if the sensor does not move with the fluid?
for each process of a closed system show the initial and final states on a properly-labeled t-s diagram evaluate the
air flows through an adiabatic internally reversible compressor at a rate of 0.04 kgs. at the inlet thepressure is 200
A fan with a diameter of 12 inches operates at a voltage of 120V with a current draw of 0.5 amps. The manufacturer claims the average velocity of air leaving the fan is 33.1 ft./s under standard conditions. Standard air has a density of 0.075 lb mass..
Prepare a 3-input, 5 bit multiplexer that fits in a 24-pin IC package. Write the truth table and draw a logic diagram and logic symbol for the multiplexer.
a computer cooled by a fan contains eight pcbs each dissipating 10w power. the height of the pcbs is 12 cm and the
a criticalcomponent of the death copter is a solid circular synchronizing shaft that is 4 inches in diameter and
a 12.7 mm diameter twist drill is used to drill a hole in a low-carbon steel workpiece using a feed of 0.3 mmrev and a
a rigid insulated tank contains 0.6 kg of air initially at 200 kpa 20degc. the air is stirred by a paddle wheel until
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