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A Brayton gas turbine cycle has two stages of compression and two stages of expansion. The pressure ratio across each stage of the compressor and turbine is 3. The air enters each stage of the compressor at 300K and each stage of the turbine at 1200K. If the efficiency of each compressor is 80% and each turbine is 85% Determine: using variable specific heat method for: Case 1) no regenerator a) The back work ratio b) The thermal efficiency
a vertical piston cylinder device contains a gas under pressure . the mass of the piston is 2.5 kg and its diameter is
an automatic automotive transmission casing has a shape of a rectangular box with side dimensions 40 cm x 30 cm x 50
a stop block s prevents a crate from sliding down a theta 21.0 incline. a tensile force ffo tn acts on the crate
a person is riding merrily along on his road bicycle at v mph. what is the approximate minimum speed v in mph necessary
1 a gas turbine power plant produces a net power output of 100 mw with an overall thermal efficency of 35a if the
A differential nitrogen pressure exists across a 2-mm-thick steel furnace wall. After some time, steady-state diffusion of the nitrogen is established across the wall. Given that the nitrogen concentration on the high-pressure surface of the wall is ..
A lawn sprinkler with three identical arms is used to water a garden by rotating in a horizontal plane by the impulse caused by water flow. Water enters the sprinkler along the axis of rotation at a rate of 64L/s and leaves the 1.6?cm-diameter nozzle..
three particles are sliding along a flat frictionless surface ma 0.4 kg mb 0.5 kg and mc 0.4 kg. before any
Steam enters a counter flow heat exchanger operating at stead state at 0.07 MPa with a specific enthalpy of 2431.6 kJ/kg and exits at the same pressure as saturated liquid. The steam mass flow rate is 1.5 kh/min. A separate stream of air with mass fl..
use constant specific heats at room temperature. round your final answers to the nearest integer. an otto cycle uses
a vehicle is powered by motors that have a maximum speed of 5000 rpm. each motor is coupled to the wheel using a gear
block a and b weigh 100 lb and 60 lb respectively. if block a has a center of gravity at g as shown determine the
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