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Several geothermal power plants are in operation in the United States and more are being built since the heat source of a geothermal plant is "free energy". An 8-MW geothermal power plant is being considered at a location where geothermal water at 160C is available. Geothermal water is to serve as the heat source for a Rankine power cycle with R-134a as the working fluid. Limiting the design to a single reheat pass and a single feedwater heater (open or closed), determine the optimal pressures, temperatures, and fraction of steam extracted to maximize thermal efficiency.
The mean diameter of a conical friction clutch is 250mm with a width of the conical surface being 50mm. The clutch is lined with a material having a coefficient of friction of 0.25
What would have been the advantages or disadvantages of Tata collaborating with another automaker on the Tata? Who might it have collaborated with?
An air compressor takes air from outdoors at 28deg C and 101.2kPa and compresses it to 790kPa and 50 deg C. The air input to the compressor is found to be 22.67m3/hr. Estimate the required Hp to operate the compressor.
when the discharge upstream is suddenly increased to 70 cfs/ft. What is the speed and height of the surge wave
what are the four basic families of shape-production processes? Cite one advantage and one limitation of each family.
What is the inner tube surface temperature at the outlet, where fully developed conditions may be assumed?
If the maximum shear stress is limited to one-half of its yield strength and the fillet radius is 0.3 in, what is the maximum torque that can be applied? What power could be transmitted by a similar shaft rotating at 400 rpm?
Compare the time and cost of using the following three alternative methods for casting the concrete for the wall: 1) direct chute 2) pumped 3) crane and bucket.
Effect of pressure on temperature and density of air for an adiabatic process, The pressure is to be raised from atmospheric to 7 psi (4.83 bar). The process is adiabatic, and the volume is constant and unknown.
Determine the angular velocity of the two 10-kg rods in Fig. 2 when , if they are released from rest in the position . Neglect friction.
A rigid vessel of capacity 0.6 m3 contains dry saturated steam at 4.0 bar. The vessel is cooled until the pressure is reduced to 2.0 bar, Calculate; a) the mass of steam in the vessel.
Find the corresponding damping coefficient c. Identify the system parameters such as the natural frequency and damped frequency. Derive the mathematical expression of the displacement as a function of time with the given initial condition. Plot yo..
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