Engineering, 09.10.2019 16:10 eddrekas8564
Asquare rod of cross-section ac=w2 is attached between two heat reservoirs, maintained at the same temperature tb. the rod loses heat by convection to the air at t[infinity]. the following is given: w = 1 cm, 2l = 20cm, k = 10 w/(m-k), h = 25 w/(m2-k), tb=100°c, and t[infinity] = 20°c. (a) determine the temperature at x = l/2 and at x = l using an exact analysis. the following two options are acceptable: 1) derive the required governing equation using a differential energy balance and find the temperature profiles, and 2) use the proper temperature profile formula from your textbook. (b) determine the total heat transfer from the bar into the environment. (c) the rod under consideration is not a fin per se, but can be analyzed as a fin, what is the efficiency of this fin?
Answers: 1
Engineering, 04.07.2019 18:10, tobyhollingsworth178
Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer
Answers: 2
Engineering, 04.07.2019 18:20, ashleyjaslin
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
Engineering, 04.07.2019 18:20, samueltaye
Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?
Answers: 1
Asquare rod of cross-section ac=w2 is attached between two heat reservoirs, maintained at the same t...
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