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A long rod of 60-mm diameter and thermo physical properties P = 8000 kg/m3, c = 500 J/kg · K, and k = 50 W/m · K is initially at a uniform temperature and is heated in a forced convection furnace maintained at 750 K. The convection coefficient is estimated to be 1000 W/m2 · K.
(a) What is the centerline temperature of the rod when the surface temperature is 550 K?
(b) In a heat -treating process, the centerline temperature of the rod must be increased from Tj = 300 K to T = 500 K. Compute and plot the centerline temperature histories for h = 100, 500 and 1000 W/m2 · K. In each case the calculation may be terminated when T = 500 K.
Understanding the Trends that are re-shaping the world and understanding the Future Workplace and Future Workforce -2020
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The SV curve can be used to understand the impact of constant power factor shunt compensation support. In this case, the receiving end is injected with a specific amount of reactive power so that the receiving end maintains a constant load power f..
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from the following data: 6.28 7.06 6.50 6.76 6.82 6.92 6.86 7.15 6.57 6.48 6.64 6.94 6.49 7.14 7.16 7.10 7.08 6.48 6.40 6.54 A. find the mean and the median B. Find the variance and standard deviation
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A lightning bolt carrying 30,000 A lasts for 50 micro-seconds.If the lightning strikes an airplane flying at 20,000 feet, what is the charge deposited on the plane
Polyethylene with ?_r = 2.25 is used as the insulating material in a lossless coaxial line with a characteristic impedance of 50 Ω. The radius of the inner conductor is 1.2 mm.
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