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A turboprop engine consists of a diffuser, compressor, combustor, turbine, and nozzle. The turbine drives a propeller as well as the compressor. Air enters the diffuser with a volumetric flow rate of 83.7 m3/s at 40 kPa, 240 K, and a velocity of 180 m/s, and decelerates essentially to zero velocity. The compressor pressure ratio is 10 and the compressor has an isentropic efficiency of 85%. The turbine inlet temperature is 1140 K, and its isentropic efficiency is 85%. The turbine exit pressure is 50 kPa. Flow through the diffuser and nozzle is isentropic. Using an air-standard analysis, determine
(a) the power delivered to the propeller, in MW.
(b) the velocity at the nozzle exit, in m/s. Neglect kinetic energy except at the diffuser inlet and the nozzle exit.
A compressible ?ow of a gas occurs in a pipeline. Assume uniform ?ow with the x-direction along the pipe axis and state the simpli?ed continuity equation.
the cylinder and hub have a total mass of 30 kg and a radius of gyration of 0.5 m. assume no slippage. determine the
consider an 8-l evacuated rigid bottle that is surrounded by the atmosphere at 100kpa and 17 degrees c. a valve at the
a thin 1 mm thick ?-iron membrane at 250degc is subjected to an atmosphere of hydrogen gas on one side and the
The tension in a string holding a solid block below the surface of a liquid (of density greater than the solid) is T0when the containing vessel (see below figure) is at rest. Show that the tension T, when the vessel has an upward vertical acceleratio..
a a 10-mm-diameter brinell hardness indenter produced an indentation 1.62 mm in diameter in a steel alloy when a load
a tungsten wire 0.005mm in dia and 2 mm in length is placed horizontal in stagnant air. if we need to maintain the wire
some pollution like the now banned toxic pesticide ddt dichlorodiphenyldicholorethaneand its relative dde
Five pounds of propane have a volume of 1 ft3 and a pressure of 600 psi. Determine the temperature (in °R) using each of the following methods.
air modeled as an ideal gas enters a steady state adiabatic turbine at 1200 k and exits at 100 kpa 700 k. the
Canal effect figure shows an anchored barge that extends across a canal by distance d = 30m and into the water by distance b = 12m. The canal has a width D = 55m, & water depth H = 14m, and a uniform water-flow speed vi = 1.5m/s.
Colorado State equilibrium code - Use the general Gibbs energy minimization approach
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