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Steam produced at 70 bar and some unknown temp. A small amount of steam is bled off just before entering a turbine and goes through an adiabatic throttling valve to atmospheric pressure. The temp of the steam exiting the throttling valve is 400C. The unthrottled steam is fed into the turbine, where it is adiabatically expanded to atmospheric pressure. a) What is the temp. of the steam entering the turbine? b) What is the maximum work per kilogram of steam that can be obtained using the turbine in its present mode of operation?
assuming a transition reynolds number of 5 x 105 determine the distance from the leading edge of a flat plate at which
a 3.084-kg steel projectile is fired from a gun. at a particular point in its trajectory it has a velocity of 300 ms an
the combustion of methane gas ch4 with air leads to the following volumetric analysis of the product gases on a dry
A meteorologist uses a pitot -static tube to measure the wind speed in a tornado. Based on the damage caused by the storm, the tornado is rated as EF5 on the enhanced Fujita Scale. This means that the wind speed is estimated to be in the range of 261..
a dishwasher circulates water at a rate of 55 gpm with a small pump. the total head ppg v22g leaving the pump is
A double pane insulated window consists of two 1cm thick pieces of glass separated by q= 1.8cm layer of air. The unit measures 4m in legnth and is 3m in width. Under conditions where the extreme outside temperature of the glass is at 10 C and air, at..
thermal convection in the presence of heating can be modelled bydtdt u dtdx v dtdy qcp k d2tdx2 d2tdy2 all are
An outside wall of a building is constructed of 1/2 inch gypsum sheeting, 8 inches of concrete block (hollow, 3 oval core), and 4 inches of common brick. The inside of the building is maintained at 75F dry-bulb temperature and 65F wet-bulb temperatur..
a water cooler for drinking water should cool 1 ft3h from 65 f to 50 f using a small refrigeration unit with at cop of
determine the amount of gypsum created from the capture and conversion of sulfur during copper production from copper
an un-stretched spring initially is attached to a horizontal piston round shape. heat is added to the gas until the
a piston-cylinder device initially contains 0.6 kg of steam with a volume of 0.1 m3. the mass of the piston is such
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