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Consider an ideal steam cycle that combines the reheat cycle and the generative cycle. The net power output of the turbine is 100,000 kw. Steam enters the high pressure turbine at 1200 psia, 1000 F. After expansion to 90 psia, some of the steam goes to an open feedwater heater and the balance is reheated to 700 F, after which it expands to 1 psia. (b) What is the steady flow rate to the high pressure turbine? (c) What hp motor is required to drive each of the pumps? (d) If there is a 20 F rise in the temperature of the cooling water, what is the rate of flow of cooling water through the condenser? (e) The velocity of the steam flowing from the turbine to the condenser is limited to a maximum 400 ft/sec. What is the diameter of this connecting pipe?
electric power is to be generated by installing a hydraulic turbine-generator at a site 130m below the free surface of
Consider a NACA 0009 airfoil that has a plain flap whose length is 0.2c and which is deflected 25. a. Calculate cl and cmc/4 When the geometric angle of attack is 4 degrees, what is the section lift coefficient? Where is the center of pressure?
if k 0.410-3 ft-1 determine d such that a car driving at constant speed v0180mph experiences at b an acceleration with
an engineer is designing a system that requires transporting .01 m3s of helium at 15degc and 120 kpa. the velocity of
assuming that r-134a is an ideal gas what would the specific volume of r-134a at 40 deg c and 0.06 mpaabsolute? how
xerted on the shaft shown in the figure, which rotates at 1150 rev/min and supports a 10-kip bending force. Use a 1095 HR steel. Specify a diameter d using a design factor of nd = 1.6 for a life of 3 min. The surfaces are machined.
a truck is traveling at v0 60mph when the driver applies the brakes to come to a stop. the deceleration of the truck
let it cool back to the outdoor temperature, pass it through a turbine, and discharge the cold air leaving the turbine into the house. from a thermodynamic point of view, is the proposed system sound?
an electric moter drivers an axial fan assuming that the desired air velocity 65degree f existing the fan is 50mph and
it is fair to assume that the heat rejection from an otto cycle is typically to the ambient at a temperature tmin the
What should the diameter of the nozzle outlet be in inches and what is the mass flow rate of steam through the nozzle in lbm/min?
As shown, a 130 lb bungee jumper wants to jump from the top of a 655 ft high bridge and be able to just touch the water below. Given that the bungee cord has a spring constant of 2.33 lb/ft, what should the bungee cord's relaxed length, l, be for ..
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