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Two parallel planes 1.2x1.2 are splited by a distance of 1.2 m. the emissivity's of the planes are 0.4 and 0.6, and the temperature are 760 and 300 oC, correspondingly. A 1.2x1.2 radiation shield having an emissivity of 0.05 on both side situated equidistance among the two planes. The combined arrangement is placed in a large room which is maintained at 40 oC. (a) Determine heat transfer rate from each of the two planes if the shield were not present. (b) Determine heat transfer rate from each of the two planes if the shield were present. (c) Temperature of the shield.
what is austenitic steel
Soft magnetic materials Soft magnetic materials are majorly utilized in those applications in which the soft material has to amplify the flux occured by the electrical current
What is density of energy states? The density of states (DOS) of a system explains the number of states at each energy level that are available to be get. A high DOS at a speci
Ask question #haMinimum 100 words accepted#Okkkk Hardness of bore well water is less than sea water. Justify
Consider a Carnot heat engine operating with steam as the working uid, among reservoirs at TL = 200C and TH = 500C. Do the following, using the steam tables: 1) Draw the cycl
how can be boiler trouble be minimised ?
Your favorite professor likes mountain climbing, so there is always a possibility that the professor may fall into a crevasse in some glacier. If that happened today, and the profe
a) The vacuum in the headspace of a can of food is normally formed by "hot fill" exhausting - that is, the cans are closed when the can is filled with product at a temperature of 8
Thermal spelling: The breaking or cracking or peeling off the refractory is known as spelling. A good refractory must show a good resistance to thermal spelling. Thermal spelling
A mixture of calcium sulfate (CaSO4) and calcium uranate (CaUO4) contains 10% sulfur by mass. What is the mass percentage of uranium in the mixture?
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