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Sulzer Hydro Ltd. of Zurich at one time manufactured a six-jet vertical-shaft Pelton wheel turbine with a power rating of 174.4 MW, with a runner diameter of 4.1 m, and an operating speed of 300 rpm with an effective head of 587 m. Assuming the overall efficiency is 0.90 and the nozzle efficiency is 0.99, determine
a. the power specific speed;
b. the blade speedjet speed ratio;
c. the volume flow rate
Considering the values shown in Figure 9.2, comment on your result.
when kaolinite clay al2si2o5oh4 is heated to a sufficiently high temperature chemical water is driven off.a under these
a car radiator has an effective heat transfer area of ??15 m2. cooling water temperature is 85 c in and the 60 c out of
An old 3000-lb gun fires an 18-lb shell with an initial velocity of V0=1500ft/s at an angle of 30 degrees. The gun rest on a horizontal surface and is free to move horizontally. Assuming that the varrel of the gun is rigidly attached to the frame and..
a motor consumes 1200 hp of electrical power when operating at steady state. the motor receives an input voltage of 560
Consider a 1.25 cm diameter carbon steel (1% C, k = 40 W/m-K) sphere to be cooled from 500oC to 100oC by a cooling air flow at 25oC with convection coefficient of 110 W/m2-K.
a certain ceramic has a fracture toughness of kic of 5 mnm32. a batch of samples of this material contains surface
a piston-cylinder device contains 01.440 kg of refrigerant-134a at -10 degrees celsius. the piston that is free to move
a tensile test is run on a 0.625 inch diameter specimen of astm-36 structural steel that has a 2.1 inch gage length.a
a 1 kg block of copper at 350degc is quenched in a 10 kg oil bath initially at ambient temperature of 20degc. calculate
Before freezing, breaded chicken patties with the composition below are cooled to 0°C from an initial cooked temperature of 82°C (180°F). Breaded Chicken Patty Water 60% Carbohydrates 15% Protein 15% Fat 8% Ash 2%
air is expanded from 2000 kpa and 500c to 100kpa and 50c. assuming constant specific heats determine the change in
the steam at the inlet is 20 bar absolute with superheat of 135 c . the steam at the outlet is 1 bar absolute and 100
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