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A steam turbine operates adiabatically with a steam rate of 25 kg s-1. The steam is supplied at 1300 kPa and 673.15 K (400°C) and discharges at 40 Wa and 373.15 K (100°C). Determine the power output of the turbine and the efficiency of its operation in comparison with a turbine that operates reversibly and adiabatically from the same initial conditions to the same final pressure.
Take the saturation temperature of n-propanol at 2.1 bar as 118oC. The otherphysical properties required can be found in the literature, or estimated.
Since the temperature in the summer can get as high as 95°F, determine the pressure that the tank must withstand to avoid rupture.
Water is the coolant for the intercoolers. It enters at 298.15 K (25°C) and leaves at 318.15 K (45°C). What is the cooling-water rate per intercooler?
Design a storage and feed system for the sorbitol powder. Sorbitol has average bulk density 1.48 kg/liter, and can be assumed to have an average particle size of 200 μm.
Develop a model for this system that can be used to find h1,h2,w2, and w3 as functions of time for any given variations in inputs.
The diameter of the impeller is 3 m and the impeller is installed 1,35 m abobe the bottom of the 2o ft tank. If the temperature is 30 C and the impeller is rotated at 30 r/min, what will be the power consumption ? Find the Reynolds number.
Find references for the magnitudes of these factors, andsum up the total amount of petroleum saved in a year, and total amount of CO2 saved in a year
Calculate the molar mass of a gas if 2.50 grams occupies 0.0875 liters at 685 torr and 35 degrees Celsius.
Design a vapor compression cycle using ammonia as the refrigerant that will be used to maintain the temperature of a stream at - 20 °C. The evaporator is air cooled and the ambient temperature may be assumed to be 25 °C. Assume a compressor effici..
determine the analog output voltage as a fraction of the reference voltage.
A packed tower is designed to recover 98% CO2 from a gas mixture containing 10 % CO2 and 90 % air using water . A relation y = 14 x can be used for equilibrium conditions where y is kg CO2 / kg dry air and x is kg CO2 /kg water. The water to gas r..
A string of negligible diameter is drawn down the center-line of a pipe containing a Newtonian fluid. At what velocity, w, must the string be drawn in order to vaporize the fluid?
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