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Air enters the compressor of an ideal cold air-standard Brayton cycle at 100 kPa, 300 K, with a mass flow rate of 6 kg/s. The compressor pressure ratio is 10, and the turbine inlet temperature is 1400 K. For k 5 1.4, calculate
(a) the thermal efficiency of the cycle.
(b) the back work ratio.
(c) the net power developed, in kW.
air expands through a nozzle from a chamber pressure and temperature of 300 psia and 1000 r respectively to an exit
A new design is proposed for an automobile. It is suggested that a 1:5 scale model study be done to access the proposed design for a speed of 90 km=h.
An aluminium bar is subjected to uniaxial tensile loading. If the lateral strain (perpendicular to the load direction) is measured to be -0.00025, determine the axial stress required to induce this strain (round to the nearest ksi).
a rankine power cycle uses 10.0 lbms of water witha high pressure of 100 psia low pressure of 1 psi.water enters the
consider the piston and cylinder arrangement indicated in the figure in which a frictionless piston with a
The velocity of a particle along the s-axis is given by v = 17s^3/2 where s is in millimetres and v is in millimetres per second. Determine the acceleration when s is 3.3 millimetres.
It is required to design a low-voltage, high-current, shunt-excited DC motor for hoisting drive in industrial overhead crane system. The output power of the machine is expected to be between (20+X) hp. The copper losses in the machine should ..
a pelton wheel is used to produce hydroelectric power. the average radius of the wheel is 1.83 m and the jet velocity
air in a piston cylinder assembly undergoes a thermodynamic cycle consisting of three internally reversible processes
the system contains a fixed displacement pump with a pressure relief valve set at 1000psi. the system operates 20 hours
Explain why keeping all members of a group informed about progress and technical decisions in a project can improve group cohesiveness.
During the process, a pressure-relief valve allows nitrogen to escape, maintaining constant pressure in the tank. Neglecting kinetic and potential energy effects, and using the ideal gas model with constant specific heats evaluated at 350 K, deter..
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