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Question: Define the vectors of a dynamic process model [x, u, w, p, y, n, z] and cost function [J] for optimization in your own field of interest. Can the variables of this model change continuously or do they change only at discrete instants of time? If the process is continuous, how fast would discrete measurements have to occur to capture the important details of time variables? Is the system linear? Nonlinear? Time-varying?
a pitot-static tube is used to measure the airspeed of an airplane. the pitot tube is connected to a pressure sensing
a. an adiabatic turbine expands steam from 500c 3.5 mpa to 200c and 0.3mpa . if the turbine generates 750 kw. what is
The cantilever beam AB, with the rectangular cross section shown, is supported by a 1/8-in.-diameter steel wire at B.
It is not possible to subject the line to testing equipment, but the voltage and currents can be measured at the load and at the generator.
The power unit A of the tractor-scraper has a mass of 4 Mg with mass center at G1. The fully loaded trailer-scraper unit B has a mass of 24 Mg with mass center at G2. Positioning of the scraper is con- trolled by two hydraulic cylinders EF, one on..
The diameter of the steel pin at C is 0.375in and the ultimate shear strength is 54ksi. If a factor of safety of 2.0 is required in both the strut and the pin at C. determine the maximum load P that can be supported by the structure.
Refrigerant R134a is compressed under steady conditions from a saturated vapour at 100 kPa to 500 kPa. The compressor’s isentropic efficiency is 85%. Heat losses from the compressor can be ignored, as can kinetic energy and potential energy effects.
(a) Describe how the capacitors are combined. (b) There are three other ways to combine all three capacitors in a circuit. What are the equivalent capacitances for each arrangement?
a rankine steam power plant should operate with a high pressure of 3 mpa a low pressure of 10 kpa and the boiler exit
The pressure and temperature at the beginning of compression in a Diesel cycle are 100 kPa and 300 K, respectively. At the end of the heat addition, the pressure is 5 MPa and the temperature is 2500 K.
Derive a formula for the tensile stress σx in the bar as a function of the distance x from point C. What is the maximum tensile stress?
Steam with a mass flow rate of 200,000 lb/hr enters a well insulated turbine at 1100 psi, 900degreeF through a duct with a flow area of 1ft^2. A portion of the steam is extracted at p=130psi,T=380degreeF and exits through a 1 ft diameter duct at v=60..
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