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An ideal cold air-standard Brayton cycle engine operates with air entering the compressor at 27 C. The pressure ratio is 6, and air leaves the combustion chamber at 1100 K. Determine the following: 1. The compressor work (kJ/kg) 2. The turbine work (kJ/kg) 3. The cycle thermal efficiency 4. The cycle thermal efficiency if an ideal re-generator is employed.
Ideal vapor-compression refrigeration cycle, An ideal vapor-compression refrigeration cycle, with ammonia as the working fluid, has an evaporator temperature of -20c and a condenser pressure of 12 bar
a venturi meter is inserted in a pipe whose diameter is 12 in. the diameter of the meter at its throat is 6 in. and the
a centrifuge bowl with 250mm internal diameter is turning at 4000 rmin. it contains a layer of aniline 50mm thick. if
A piston-cylinder device contains 0.8kg of steam at 300 degrees C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses.
To solve ax = b Find a number y such that ay is integer (and possibly a factor of b) Then if k Ay = b, the answer is ky What is the concept they understood?
the 10-kg mass a is moving at 5 ms when it is 1 m from the stsaionary 10 kg mass b. the coefficiient of kinetic
A turbine takes in 2 kg/s neon at 27C and 200 kPa with negligible velocity. The produced work is 75 kW and 30 kW of heat leaks into the turbine from the surroundings. The neon exits at 100 kPa and 230 K. Find the exit velocity of the neon.
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Assume they test null hypothesis H0: versus H1: Will the engineers decide to use the steel if H0 is rejected? Will the engineers decide to use the steel if H0 is not rejected?
an agitation system is to be designed for a fluid having a density of 950kgm3 and viscosity of 0.005pas. the vessel
a cylinder of cross-sectional area a is divided inot tow chambers 1 and 2 by means of a frictionless piston. the piston
Prove that the transformation Q1 = q12 Q2 = q2 sec p2 p cos p2 - 2q2 P= 1 P2 = sin p2 - 2q1 1 2q1 cos p2 is canonical, by any method you choose . Find a suitable generating function that will lead to this transformation.
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