Engineering, 05.12.2019 23:31, lazypotato71
Acomposite wall is composed of 20 cm of concrete block with k = 0.5 w/m-k and 5 cm of foam insulation with k = 0.03 w/m-k. the temperature of on the foam side is 25oc while the temperature on the block side is 0oc. what is the temperature at the interface between the block and the foam?
Answers: 3
Engineering, 04.07.2019 18:10, oshawn108
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg. k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m. k
Answers: 2
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
Acomposite wall is composed of 20 cm of concrete block with k = 0.5 w/m-k and 5 cm of foam insulatio...
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