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Derive an expression for the optimum economic thickness of insulation to put on a flat surface if the annual fixed charges per square foot of insulation are directly proportional to the thickness,
(a) neglecting the air film,
(b) including the air film. The air-film coefficient of heat transfer may be assumed as constant for all insulation thicknesses
Derive an expression for Concentration of substrate versus the length of the packed bed reactor as a function - determine the Vm" (mol/m2s) value necessary to convert 80% of the substrate to product in the reactor.
Calculate the energy required to heat 1kg of CO 2 from 400ºC to 600ºC at a constant pressure of 1atm using:-
If the container holds 1.3 kg of dry air, what are the final specific and relative humidities of the air in the container? what is the dew point?
a discuss how the phase equilibria of mixtures are represented using diagrams similar to the pressure-temperature and
In assessing the success of these programs, it's important tokeep the entire life cycle of ethanol fuels in mind. a. Up to 10% by volume of gasoline in theU.S. may consist of corn-based ethanol. Using this information, calculate the amount of crud..
Address Search - Air Pollution and Prepare the paper on Air Pollution
A jacketed vessel is to be used as a reactor. the vessel has an internal diameter of 2m & it fitted with a jacket over a straight section 1.5m long. both the vessel & jacket walls are 25mm thick.
One mol of methanol vapor is cooled under constant pressure in a closed system by removing 25000 J of heat. Initially, the system is at 2 bar, 200 °C. Determine the final temperature.
Devise a control system for this reactor, and draw up a preliminary piping and instrument diagram. The following points need to be considered:
Chlorine is to be removed from a vent stream by scrubbing with a 5% w/w aqueous solution of sodium hydroxide. The vent stream is essentially nitrogen, with a maximum concentration of 5.5% w/w chlorine.
For the consecutive reaction , A----K1(B-K2--(C, numerical values are K1 = 0.85 hr^-1, K2 = 0.13 hr^-1, Cao = 64 kg -mole /m3 and Cbo = Cco =0 . what is the maximum concentration attained by B when as 1).Batch reactor ,( 2 ) -single stage continuo..
Determine whether a linear correlation of y with x accounts for all but the error variation in y from the following replicate values of y at different levels of x.
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