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Steam is expanded from 20 bars, 280 C to 100kPa through an adiabatic, steady flow turbine whose isentropic efficiency is 90%. The turbine surroundings maintain their temperature at 27 C. How much entropy is generated by this process and does this process comply with the increased in entropy principle?
Compare the inlet steam mass and volume flow rates in pound mass per second and cubic feet per second of (a) a fossil-fuel power plant turbine having a polytropic efficiency of 0.90 and receiving steam at 2400 PSIA and 1000F and (b) a nuclear power p..
A 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is suddenly removed. Determine (a) the Maximum velocity reached by the 0.5-lb block, (b) the maximum height reached by the..
Find the indicial equation and its roots. Find the recurrence relation. Use the recurrence relation to find the first three terms of the power series solution corresponding to one root of the indicial equation
a hectare is 10000 m2. an acre is 43560 square feet. the unc charlotte main campus is 1080 acres in area. what then is
a vintage automobile has an intake manifold vacuum gage in the dashboard instrument cluster. cruising at 20.1 ms 45 mph
when a force is transferred to another point of the body indicate which of the following quantities remain unchanged
A house is kept at 22oC in the winter by means of electric heaters. On a cold day, the heaters are on for 18 hours and use an average power of 5 kW. How much power would be saved if a heat pump with a COP of 2.0 was to be used instead?
A single-stage ideal regenerative steam cycle has a boiler pressure and temperature of 5000 kPa and 500 C, and a condensing pressure of 10 kPa. The extraction pressure is 500 kPa.
What is a typical direction of failure plane w.r.t the direction of loading axis when a ductile material is loaded under A) Axial loading only B) Compressive loading only. C) Torsional loading only (Assume material is isontropic and even and loading..
in order to compute strains in a composite layer that is one layer consisting of a matrix materials and fibers parallel
Oil at 80°F, density r = 56.8 lbm/ft3 and viscosity m = 0.0278lbm/ft.s is flowing steadily in a 0.5in diameter 120ft long pipe. The pressure at the pipe inlet is 120 psi and at the outlet is 14 psi. Determine the flow rate of oil through the pipe ass..
Calculate the velocity v of the collar as it hits the stop at B if it is elevated from rest at A by the action of the constant 40-N force in the cord. The cord is guided by the small fixed pulleys.
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