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At what flow angle will the flow become just sonic downstream of the nozzles of a high pressure turbine? The nozzles discharge into an annulus which has a shroud diameter of 250 mm and hub to the shroud diameter ratio is 0.80. The stagnation pressure and temperature are 1500 kPa and 1277 0 C respectively. The mass flow rate is 7 kg/s. The value of R is 286.96 J/(kg.K) and Cp/ R is 4.1.
a heat pump with refrigerant 134a is used maintain a house at 25 degc by absorbing heat from a geothermal water source
In the large scale manufacturing of Jaguar Bold Blue Bouncy Balls (JB4) for children, it is important that their material properties be sufficiently uniform. One way to detect gross differences in their material properties is to observe how a ball re..
A blue spruce pine tree has the shape of a triangle which is 15 cm off the ground. The triangle has a maximum diameter of 6 m and is 10 m tall. Estimate the drag on the tree if it is exposed to a 25 m=s wind. Use CD¼ 0.4 in your calculations.
Consider a homogenous isotropic solid. Assume that all relevant properties do not depend on temperature and position within the solid. Derive the heat conduction (diffusion) equation in The rectangular coordinate system. Cylindrical coordinate system..
A cutting tool on a lathe applies a tangential force of 3.5 kN when it is machining a bar 150 mm in diameter. If the lath is turning at 100 rpm, what power is being supplied to the bar?
A successive approximation ADC has 4 bits and a reference voltage of 10 V. If the input voltage is 2.8 V, describe each step the ADC undergoes to determine the value of the 4 bits. What input voltage will be computed by the ADC?
in cold weather condensation frequently occurs on the inner surfaces of the windows due to the lower air temperatures
During the compression stroke of an engine, the work done on the working substance in the engine cylinder is 75kJ/kg and the heat rejected to the surroundings is 42kJ/kg. Find the change of internal energy stating whether it is an increase of decreas..
The transfer function between the elevator input and the pitch attitude of a plane is given by: Design an autopilot controller (using a lead compensator) for the system so that the response to a step input (pitch command) has a rise time of 1sec or l..
water enters an insulated nozzle operating under steady conditions at a pressure of 60 psia a temperature of 350 degf
consider fully developed condition in a circular tube with constant surface temperature ts lt tm. determine whether a
1how do the rockwell and brinell tests actually measure hardness ? give any appropriate sketches and formula. are there
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