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A binary system power plant uses mercury for the high-temperature cycle and water for the low temperature cycle, as shown in Fig. 10.23. The temperatures and pressures are shown in the corresponding T-s diagram. The maximum temperature in the steam cycle is where the steam leaves the super heater at point 4, where it is 500?C. Determine the ratio of the mass flow rate of mercury to the mass flow rate of water in the heat exchanger that condenses mercury and boils the water, and determine the thermal efficiency of this ideal cycle. The following saturation properties for mercury are known:
A 50 meter wide rectangular channel is carrying a flow of 250 m3/s at a flow depth of 5 meters. To produce critical flow in this channel, determine a.) the height of the step in the channel botom if the width remains constant.
Lake Pleasant, AZ, has a surface area of approximately 2,000 ha. The inflow for the month of August is zero. The lake is dammed so that no water leaves the impoundment downstream of the dam
Have you ever been frustrated because you could not get a container of some sort to release the last bit of its contents? The article "Shake, Rattle, and Squeeze: How Much Is Left in That Container?" (Consumer Reports, May 2009: 8) reported on an inv..
Christian is picking out ties for a business trip. Anastasia knows from experience that Christian has a 50% chance of picking a grey tie. Find the probability Christian won't pick out a grey tie until the 3rd or 4th tie.
Recommend the undrained shear strength for use in the design of (1) a foundation for an oil tank, and (2) a slope.
Note that this will require the design of two pairs of gears. Sketch the anangement of the train, and compute the actual output speed.
Split up the structure shown as appropriate and use the tabulated solutions to derive expressions for the horizontal and vertical deflections at point C. The bending stiffness is EI.
The factor of safety is defined as the ratio of the stabilizing moment divided by the overturning moment. The densities of concrete and water are = 2.40 and = 1 , respectively. Assume that the dam does not slide.
During a particular 30-day period, the streamflow flowing into a reservoir averaged 5.0 m3/s. Water supply withdrawals from the reservoir averaged 136 mgd. The only other outflow from the reservoir was 9.4 cm of evaporation from the water surface.
If for parathion, the activation energy is 15.4 kcal/mole and A = 8.1 x 109 at a pH = 7.8, how many days will the fish hatchery have to contain the river water if T = 15 oC (winter time)
A water jet 25mm in diameter moves with a constant velocity of 15 m/s and strikes a stationary and symmetrical curved plate at the center. If the jet is deflected through an angle of 120 at the outlet end of the curved plate, find the force exerte..
The wind blows horizontally in a direction which is parallel to one of the diagonals of the cross section. Careful measurement shows that, at height y from the ground, the magnitude of the wind velocity is given
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