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A jet engine is modeled as a serial combination of a compressor, an adiabatic constant pressure combustor, and a turbine. Air (considered to have a variable specific heat) is compressed through a compression pressure ratio of 8.25:1. Air enters the compressor at 14.7 psia and 60 F. Air leaves the combustor at 2,200 R. The compression isentropic efficiency is 83%, and the turbine isentropic efficiency is 85%.
An engineer claims that 5% of the air should be bypassed around the compressor and combustor, and used to cool the engine walls in a double wall arrangement. If that is done, the air leaving the combustor can be increased by 5 psi. It is claimed that the engine will produce more thrust.
Assuming that the bypassed air produces no thrust, and ignoring fuel mass, is the engineering corrector?
Write the logic equation for Y in terms of A,B,C that solves this problem, and draw the gate-level diagram.
A customer has a 2 story house and needs a whole house fan to run on timers, 1 on each floor, the ability to choose high or low speed on either floor, and signal lights to show if in high or low speed on each floor. The diagram has 4 single pull s..
A ideal transformer is rated at 4800/480 volt, at 75KVA. it is connected as a step down auto transformer. find the line and load voltages, turns ratio and total apparent, real and reactive power at full load and at 60% rated load at a power factor..
If a silicon diffusion is doped with phosphorus (donors) at a concentration of 1.0 x 10^16/cm^3, and has a sheet resistance of 365.7 ohm/cm^2 square, what is the thickness of the diffusion in microns
Design an 8085 microprocessor system that has a total of 4Kx8 EPROM space using a single 4Kx8 chip and a total of 4Kx8 RAM using two 2Kx8 chips. The EPROM should be mapped starting at address 0000 hex
The voltage ratings are 4800v rms and 240v rms for the primary and secondary windings, respectively. The transformer is rated to 10KVA. Now we want to use this transformer at 120Hz. Discuss the factors that must be considered in setting ratings ap..
Finding appropriate source for the electrical load, Have four circuits. One takes 9Vdc, two 5Vdc, and last one takes 12Vdc. Have variable transformer for source. How do I calculate or choose the voltage needed to run all four circuits with out blo..
(a) Determine free electron and hole concentration.(b) Calculate the effective density of states at valence band, Nv. Given that ni = 1x1010 cm3 and kT = 0.026.
A resistance of 40 ohms is connected in series with an inductance of 0.12 H. Calculate the current, power, reactive power, apparent power, and power factor when the combination is connected to a 60 Hz, 120 V source.
what is meant by "proactive" project management. Discuss ways in which to ensure that projects are being managed proactively. Investigate on the internet the features of Microsoft Project. Discuss why a project plan is not a Microsoft Project file.
a 14-bit successive approximation adc is used to sample a signal that has a full-scale range of 8V and a clock frequency of 12 MHz and a jitter of 50ns.initially this is used without a sample and hold amplifier.
In Mips when you use addi or any other commands in which you use a 16 bit value for a reg. value or address offset what operation is done to check if its is a negative number's two's complement or just a regular binary number
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