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An Impulse turbine with a head m and an efficiency η of 85 % develops a power kW. The runner is driven by two water jets at 400 rpm. The losses in the nozzle are 3 % and the friction coefficient of the blades is .85. The water spreads at 170° from the runner blades. The velocity ratio between the water jet and the runner velocity is r = Rω / uj = 0.46. Neglecting the losses in the pipe, determine:
(a) the water jet diameter.
(b) the hydraulic efficiency of the turbine.
a simple rankine cycle with water as the operating fluid operates with a boiler pressure of 6000kpa and a condenser
a rigid tank has a volume of 0.06m3 and initially contains a two-phase liquid-vapour mixture of nbsph2o at a pressure
How transformations affect the microstructure and mechanical properties of steel.
it is desired to design a cooler in which the tubes are 4 mm diameter to cool 10000 kg of milk per hour from 20c-3c.
Develop a C program to print the sum, the average, the product, the largest and the smallest of 3 integers that are input from the keyboard. Define an array x of size 5, using call-by-reference (that is, use pointer) to pass the array to a function, ..
a refrigerator with an avg cop of 2.8 is used to cool a container with contents equal to 12kg of water from 40deg to
an ideal chiller uses refrigerant 134a and operates between a low-side pressure of 36 psia and a highside pressure of
a student measures g the acceleration of gravity repeatedly and carefully and takes a final measurement of 9.5 ms2. his
room temperature water flows through a 5-cm-diameter pipe that has a 180 degree vertical bend. the total linear length
an air-standard brayton cycle has compressor inlet conditions of 310 k and 98 kpa and turbine inlet conditions of 882
calculate the number of vacancies per cubic meter in some metal at 689degc. the energy for vacancy formation is 0.75
Air enters a well-insulated turbine operating at steady-state conditions with negligible inlet velocity, 4 MPa, and 100°C. The air expands to an exit pressure of 100 kPa. The exit velocity and temperature are 90 m/s and 100°C, respectively. The diame..
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