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Super-heated water steam at 6 MPa and 400C enters a turbine with a velocity 50 m/s. It leaves the turbine at 70 kPa and 90% quality with a velocity of 200 m/s. The mass flow rate of steam is 20 kg/s. The rate of heat loss from turbine to surroundings amounts to 120 kJ/s. Determine 1) the enthalpy of the steam h2 at the exit. 2) The total power output of the turbine (in terms of kW)
a certain superinsulation material having a thermal conductivity of 2 x 10-4 wm.c is used to isulate a tank of liquid
assuming that the solid shaft has been replaced by a hollow shaft of the same cross-sectional area and with an inner diameter equal to half of its own outer diameter.
A well-insulated rigid closed tank contains a kg of saturated liquid-vapor water mixture at 1atm and quality 0.6842. The water is rapidly stirred by a 200Watt paddle source until it becomes saturated vapor.
determine the minimum initial velocity at which the ball must be kicked in order for it to just cross over the 3m high
a cylindrical stone mix concrete beam of diameter d 0.45 initially at ti 20c is exposed to hot gases at tinfinity
a vehicle is moving along a straight line with an acceleration given by ms2 where s is in m. at s 0 t 0 and v 6 ms.
In 1975 the roof of Montreal's Velodrome, with a weight of 360 kN, was lifted by 10 cm so that it could be centered. How much work was done on the roof by the forces making the lift?
a jet is coming out of a dive and a sensor in the pilots seat measures a force 800lbs for a pilot whose weight is
an element of material is subjected to the following state of stress.sigmax-40 sigmay100 sigmaz30tauxy-50 tauyz12
A shell-and-tube heat exchanger is used to cool a flow of steam using a stream of cooling water. The steam enters the heat exchanger at 0.1 bar and a quality of 91% (state 1), and exits as a saturated liquid at the same pressure (state 2). The mass f..
An Ideal reheats Rankine cycle. From 1 to 2 we go through Turbine 1. Then 2 to 3 we reheat in a steam generator. Then 3 to 4 we go through Turbine 2. Then from 4 to 5 we go through a Condenser. From 5 to 6 we go through a pump.
An important concept in using CFD code to solve the Navier-Stokes equations is that the variables set that are solved for are the ones appearing in the time derivative terms. These are called conservative variables.
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