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A plane wall of a furnace is fabricated from plain carbon steel (k = 60 W/m · K, p = 7850 kg/m3, c = 430 J/kg · K) and is of thickness L = 10 mm. To protect it from the corrosive effects of the furnace combustion gases, one surface of the wall is coated with a thin ceramic film that, for a unit surface area, has a thermal resistance of R"t,f: = 0.01 m2 · K/W. The opposite surface is well insulated from the surroundings.
At furnace start-up the wall is at an initial temperature of Tj = 300 K, and combustion gases at T8 = 1300 K enter the furnace, providing a convection coefficient of h = 25 W/m2 · K at the ceramic film. Assuming the film to have negligible thermal capacitance, how long will it take for the inner surface of the steel to achieve a temperature of Ts.i = 1200 K? What is the temperature Ts.o of the exposed surface of the ceramic film at this time?
The result of part a) is the upperlimit. However, as a practical matter, better error performancewill be achieved at a lower data rate. Assume wechoose a data rate of 2/3 teh maximum theoretical limit. How many signal levels are needed to achieve ..
Why Flux in Primary and Secondary Winding of the Transformer is Same? With a Simple Explanation and Example.
Given a two-dimensional array named number of three rows and four columns of type int, write the single code statement that will both declare and initialize the array such that the first row is initialized to 0, 1, 2, 3
Discuss the differences between series and parallel circuits. What are some advantages and disadvantages of each type Discuss why the total power equals the sum of the individual values of power, whether a series circuit or a parallel circuit is u..
The 16giga-byte (GB=2^30 bytes) flash memory chip for an MP3player is 11mm by 15mm by 1mm. This memory chip holds 20,000photos. a) How many photos fit into a cube whose sides are 1mm
Find the poles and zeros of H(s) and plot them in the s-plane. Find then the corresponding impulse response h(t). Determine if the impulse response of this system is absolutely integrable so that the system is BIBO stable.
What is the voltage output resolution of a 16-bit D/A converter with a 15 volt voltage source Also, what is the analog output voltage of the D/A converter if only the MSB is on
The objective of this lab experiment is to introduce you to assembly language programming for solving mathematical problems. You will use DEBUG to conduct this lab. Consider the following: The sun is 93,000,000 miles from the Earth. The speed..
1. materials are deep-seated in human culture. do you agree with this statement? why or why not? give examples of
Implement a multiple mode counter
Digitizing an Audio Signal, PAM, ADC, An audio signal has a bandwidth that extends from 100 Hz to 10 kHz. The signal is sampled to create a PAM signal and then digitized by an analog to digital converter (ADC) that has 8 bits.
What is the minimum output voltage of the Ratio detector. When the maximum discriminator output voltage is fed into an audio amplifier, the amplifier drives 100 Watts into an 8 ohm load. What is the dB gain of the audio amplifier.
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