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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 the basis of classification of hot and cold working? Cold and hot working: Changing the shape of material by extrusion, forging, rolling, and drawing include plastic
calculate the volume at (160c) and 221c if the quality is 0.85
The functions of the oxide layer are to: 1. mask against diffusion or ion-implant 2. passivate the surface electrically and chemically 3. isolate one device from another
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to determine the emf of cell uaing pottentiometre
Hi, my name is Luan Sousa, i am from Brazil and i am a chemical engineering student. I am developing a project of formox plant design and i would like to know about yields of conve
An organic compound is found to contain 37.5% of C, 3.2% of H and 59.3% of F. The following pressure and volume data were obtained for 1.0g of this substance at 90 degrees celsius
Location and layout : Note the location of the lab with respect to the rest of the building. Is the location satisfactory for efficient functioning? You can study the layout well
Refractoriness under load (RUL): This represents the resistance of a refractory material to the combined efforts of heat and load. RUL is the temperature at which the deformation
Where we have strong bond:ch20 ,h20,n20 and why?
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