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A gas-turbine plant operates on the regenerative Brayton cycle with two stages of reheating and two-stages of intercooling between the pressure limits of 100 and 1200 kPa. The working fluid is air. The air enters the first and the second stages of the compressor at 300 K and 350 K, respectively, and the first and the second stages of the turbine at 1400 K and 1300 K, respectively. Assuming both the compressor and the turbine have an isentropic efficiency of 80 percent and the regenerator has an effectiveness of 75 percent and using variable specific heats, determine
(a) the back work ratio and the network output,
(b) the thermal efficiency, and
(c) the secondlaw efficiency of the cycle. Also determine
(d) the exergies at the exits of the combustion chamber (state 6) and the regenerator.
How do machine learning algorithms deal with the fact that machine learning is an ill-posed problem?
view an electrical substation that delivers power to a manufacturing plant, you notice large boxes with two terminals connected by wires to the substation network. What might be one function of these large boxes
A robot arm must be able to extend 24 in. horizontally in 2 s while carrying a load of 10 lb. How much force is required, assuming the arm is accelerating all the way
A channel of bandwidth 50 kHz is available. Using null-to-null RF bandwidths, what data rates may be supported by BPSK
A certain transformer has 250 turns in its primary winding. In order to double the voltage, how many turns must be in the secondary winding
A 4157-V rms, 3-phase supply is applied to a balanced Y-connected three-phase load consisting of three identical impedances of 48 at angle 36.87 degrees . Taking the phase voltage Van as reference
The resistance is .4 ohm for each transmission wire connecting the motor source. If the motor was operating at 100% pf and eff and the cost of electrical power was $.10/kWh, how much can be saved each year if the motor was wired to the 240.
How does your measured -3dB frequency (fc) compare to your design critical frequency? Give some reasons why it is different.
A surface-mount permanent-magnet synchronous machine, which has the following ratings and parameters, is running as a motor in maximum torque per ampere operation mode at 800 r/min. The torque of the machine is 10 N-m, and the drive system is in t..
You are designing a general purpose integrated circuit oscillator that will operate at various frequencies, based on the external reactancesthe user supplies. You expect that the IC will be used as afixed frequency oscillator in portable equipment..
Write and test a program for the EASy68k to input a string from the keyboard and output a reversed string to the screen. Use a subroutine to perform the string reversal operation.
Write a short report that analyses the P&ID - Basic Neutralizer Control System: The neutralizer process may be used to adjust the pH of a feed stream.
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