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a gas turbine has a pressure ratio of 15. it is connected to an electric generator with an efficiency of 95%. the electric generator is to produce 60MW of electricity. The gas turbine burns natural gas with a heating value of 100,000 btu/therm. A therm of natural gas costs $1.50. What will it cost per hour to operate this system? Assume ideal Brayton cycle for the gas turbine.
What is the inner tube surface temperature at the outlet, where fully developed conditions may be assumed?
a 2 l bottle of a carbonated beverage coke at 20 degc is placed in a cooler with 10 l of saturated liquid water and 30
What gas pressure will the experimenter measure inside the bulb, A glass bulb contains air at room temperature and at a pressure of 1 atmosphere. It is placed in a chamber filled with helium gas at 1 atmosphere and at room temperature
Fireclay brick of dimensions 0.06 m x 0.09 m x 0.20 m is removed from a kiln at 1600 K and cooled in air at 40oC with h=50 W/m2/K. What is the temperature at the center and at the corners of the brick after 50 minutes of cooling?
a 6-km cast-iron new pipeline conveys 320 lsec of water at 30 degrees celsius. if the pipe diameter is 30 cm compare
approximately how many pounds of downward pressure is placed on a piston in an internal combustion engine at the moment of ignition? I know this will vary some depending on the type fuel, the size of the combustion chamber and ect.
this is concerned a little more into aerodynamics, what are the uses of wind tunnels including the importance of geometric and dynamic similarity and wind tunnel interference?
Horsepower and efficiency of three-phase motor, If a fully loaded 440V, three-phase motor draws 12.4 A at 86% power factor (pf). It's speed is 1730 rpm and its torque output to a mechanical load is 29.1 lb-ft x 1.356 = 39.5 Nm.
Your engineering firm decides to build a prototype, and needs screw and nut fasteners as well as resistors and LEDs. There are machinists and electronics technicians available for in-house production. What is the most cost-effective way of acquiri..
when a disk rolls on a surface without slip the velocity of the point of contact of the disk with the surface is zero
Identify the mass properties that would be used to determine an appropriate size box to package 60 ABS Plastic (0.038 lb/in3) blanks and to ship them at $1.15 per pound.
determine the vertical velocity vo with which a ball must be thrown in order for the time of flight to the bottom of
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