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1. Methane (CH4) at 258C, enters the combustor of a simple open gas turbine power plant and burns completely with 400% of theoretical air entering the compressor at 258C, 1 atm. Products of combustion exit the turbine at 5778C, 1 atm. The rate of heat transfer from the gas turbine is estimated as 10% of the net power developed. Determine the net power output, in MW, if the fuel mass flow rate is 1200 kg/h. Kinetic and potential energy effects are negligible.
2. Octane gas C8H18 at 258C enters a jet engine and burns completely with 300% of theoretical air entering at 258C, 1 atm with a volumetric flow rate of 42 m3/s. Products of combustion exit at 990 K, 1 atm. If the fuel and air enter with negligible velocities, determine the thrust produced by the engine in kN.
Galvanized iron drainpipes of diameter 50 mm are located at the four corners of a building, but three of them become clogged with debris. Find the rate of downpour (cm/min) at which a single functioning drainpipe can no longer drain the roof.
It is proposed to use Liquid Petroleum Gas (LPG) to fuel spark-ignition engines. A typical sample of the fuel on a volume basis consists of: 70% propane C3H8; 5% butane C4H10; and 25% propane C3H6. The higher heating values of the fuels are 50.38 MJ/..
An insulated piston cylinder device contains the R-134a at 600 KPa with quality 95%, the volume at this state is 0.3 m^3. The piston then expands until it is a saturated vapor. During that process, 100 KJ of work is done. Determine the final temperat..
an expansion in a gas turbine can be approximated with a polytropic process with exponent n 1.25. the inlet air is at
a vertical piston cylinder assembly with a piston of mass 25 kg and having a face area of 0.005 m2 contains air. the
suppose a hollowed cylinder is made from an aluminum alloy that has the following properties su 600 mpa sy 500 mpa
consider a cylindrical specimen of some hypothetical metal alloy that has a diameter of 8.0 mm 0.31 in.. a tensile
Water vapor at 100 lbf/in^2, 500 degrees F and a velocity of 100 ft/s enters a nozzle operating at steady state and expands adiabatically to the exit, where the pressure is 40 lbf/in^2. If the isentropic nozzle efficiency is 95%, determine for the no..
Design a Hohmann transfer to take a satellite from a parking orbit 200 km by 400 km to a circular orbit with a period of 4 hours. Show all calculations
What are the rules that must be kept in mind while designing castings?
A centrifugal water pump operates at 1750 rpm and delivers 150 gpm of flow at a head of 125 ft. What would be the flow rate and head for a geometrically similar pump having twice the speed and half the diameter?
Determine and plot as a function of () the tension T required to make the net moment about O zero. Use the two values d = 60 mm and d = 160 mm and comment on the relative design merits. The effects of the radius of the pulley at B are negligible.
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