Engineering, 22.10.2019 23:00 avery4428
Write the steady-state form of the heat diffusion equation for the layer of coal. verify, by direct substitution, that this equation is satisfied by a temperature distribution of the form t x t ql k x l ( ) 2 s 1 2 2 2 = + − from this distribution, what can you say about conditions at the bottom surface (x = 0)? sketch the temperature distribution and label key features. (b) obtain an expression for the rate of heat transfer by conduction per unit area at x = l. applying an energy balance to a control surface about the top surface of the layer, obtain an expression for ts. evaluate ts and t(0) for the prescribed conditions. (c) daily average values of gs and h depend on a number of factors, such as time of year, cloud cover, and wind conditions. for h = 8 w/m2 ⋅ k, compute and plot ts and t(0) as a function of gs for 50 ≤ gs ≤ 500 w/m2. for gs = 500 w/m2, compute and plot ts and t(0) as a function of h for 5 ≤ h ≤ 50 w/m2 ⋅ k.
Answers: 3
Engineering, 04.07.2019 03:10
What precautions should you take to prevent injuries when dealing with heavy loads?
Answers: 1
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:10
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
Write the steady-state form of the heat diffusion equation for the layer of coal. verify, by direct...
Mathematics, 04.03.2021 16:50
Mathematics, 04.03.2021 16:50
Computers and Technology, 04.03.2021 16:50
Mathematics, 04.03.2021 16:50
Mathematics, 04.03.2021 16:50
Geography, 04.03.2021 16:50
History, 04.03.2021 16:50
Biology, 04.03.2021 16:50
Mathematics, 04.03.2021 16:50
English, 04.03.2021 16:50
Mathematics, 04.03.2021 16:50