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An open Brayton cycle engine operates with a compressor-pressure ratio of 6, an inlet temperature of 20 C and inlet pressure of 1 bar, and a turbine-inlet temperature of 950 C. The engine drives an electrical generator that produces 25 MWe with a generator efficiency of 90%. For the following systems find the thermal efficiency, the specific work[kJ/kg], and the air mass flow rate [kg/s], if the compressor and turbine efficiencies are 80%. Assume the air is an ideal gas with constant specific heats. Its specific heat ratio is 1.4 and gas constant is 0.287 kJ/kg-K. a) A regenerative Brayton cycle with a regenerator effectiveness of 80%. b) Cycle of part (a) with intercooling to 20 C.
need a critical review journal paper about the different types of trucks gap and skirts and boat tailsabstractnotice
find the natural frequency of a pendulum for small angle deflections when the mass of the rod/string is not negligible. (Mass of rod = m, mass of ball = M.
A rigid tank with a volum of 2.5m^3 contains 5kg of saturated liquid-vapor mixture of water at 75deg C. Now the water is slowly heated. Determine the temperature at which the liquid in the tank is completely vaporized
a certain generating power plant requires 1 mw output. two types of diesel- engine installations are available. one
Compute the theoretical density of CaF2, which has the fluorite structure. Ionic radii of Ca2+ and F- are 0.100 nm and 0.133 nm respectively.
you are swinging your younger sister in a circle of radius .9m. if her mass is 24kg and you arrange it so she makes one
a preheater involves the use of condensing steam at 100c on the inside ofnbspa bank of tubes to heat air that enters at
Calculate the net cycle work in kJ assuming air is an ideal gas with constant specific heats.
power system assignmentthe assessment to design a substation and the associated protection system. the transformer is
a flat plate solar collector 6 ft by 12 ft is mounted on the roof of a house. the outer surface of the collector is at
the temperature of a flowing gas is to be measured with a thermocouple junction and wire stretched between two legs of
A similar measurement is made applying the force parallel to one of the cube axes. Explain why the two measurements give different values of the elastic modulus.
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