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Estimate the volume change of vaporization for ammonia at 293.15 K (20°C). At this temperature the vapor pressure of ammonia is 857 kPa.
The uniform air gap is of length 1 mm, while the armature diameter is 0.5 m, and the axial length of the machine is 1.5 m. The field winding carries a current of 1 A (dc) and the rotor is driven at 3600 r/min.
Determine the voltage transfer function of the low pass filter circuit shown in Figure P3.4.6, and find the expression for ω0.
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..
Choose an initial guess for reactor temperature and pressure within the range provided and simulate the process described - Determine a metric to quantify the reactor performance then use this parameter to optimize the reactor temperature and pressu..
Show how you will plot the above data to obtain a straight line, and thus determine the reaction order (n) and reaction rate constant k. c. Plot the data on the paper provided and find n and k by the method you describe in step b.
In a device to produce potable water, humid air at 90°F, 29.7 in Hg, and 95% relative humidity iscooled to 40°F at constant pressure. What volumetric flow rate of air into the cooler (ft3/min) isrequired to provide 10.0 gal/min of condensed water?
A closed tank, 1 m3 in volume is filled with water at 1 bar 80 °C. A second identical tank contains 20 kg of steam at 20 bar. What is the mass of water in tank 1?
At z1 = 0.2 and 30 kPa, the system is present as two phases. What is the chemical potential of methanol and water in the vapor phase using an ideal gas reference state at 300 K and 101 kPa? Is the assumption of treating the vapor phase as an ide..
Find the slip at which the maximum developed torque occurs.
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.
question 1a the radiation protection act 2003 makes provisions for the protection of people against the risks from
Design and optimize a suitable shell-and-tube heat exchanger that can satisfy the above mentioned duty and fix a tentative geometry and perform all standard calculations
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