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Air enters the compressor of an ideal air standard Brayton cycle at 100 kPa, 25°C, with a volumetric flow rate (-V?) of 8 m3/s. The compressor pressure ratio is 12. The turbine inlet temperature is 1100°C. Use the PG model for air. Determine the thermal efficiency (?th). Determine the net power output (W?net). Determine the back work ratio
What is the caste system in India? How does the caste system differ from social stratification in many western societies including the US? What are the religious implications of stratification?
Determine the eccentricity which produces this amount of acceleration at 5000 rpm, and give the permissible amount of unbalance in N.m (Wr) for a 4500 N rotor.
Hydrostatic relation, An empirical formula relating pressure and density for seawater w/ temperature held constant is
a spring-mass is excited by a force f0sinomegat. at resonance the amplitude is measured to be 0.58 cm. at 0.80 resonant
a carnot heat pump refrigerator operates between -7 and 29 degree c. it has an input power of 3.5kw. determine a the
a household freezer operates in a room at 20ordmc. heat must be transferred from the cold space at a rate of 2 kw to
Consider a cascade system that uses Carnot refrigeration for the high temperature cycle, and vapor compression refrigeration for the low temperature cycle. Saturated vapor ammonia enters the compressor in the low temperature cycle at 20 psi and exits..
For the continuous beams shown, find moments at the supports and the reactions. Draw complete shear and moment diagrams.
an air standard cycle with variable specific heats is executed in a closed system and is composed of the following four
You are asked to measure the rate at which waste gases are being discharged from a stack. The gases entering contain 2.1 % carbon dioxide. Pure carbon dioxide is introduced into the bottom.
A rectangular plain slab of thickness 20 mm has both of its surgaces at 160°c and 120°c the wall has a source which generates heat at a uniform rate of 80MW/m3. If thermal conductibity of slab is k=200 W/mk then
Assume elastic deformation and that Hooke's law holds. Derive an expression for the ratio of the axial strain to the axial stress, εa/σ a, in the gummite in terms of the Young's modulus, E, and Poisson's ratio,υ, of the gummite.
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