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Copy and pConsider the stirred-tank heating system shown in Fig. E. It is desired to control temperature T2 by adjusting the heating rate Q1 (Btu/h) via voltage signal V1 to the SCR. It has been suggested that measurements of T1 and To, as well as T2, could provide improved control of T2.
(a) Briefly describe how such a control system might operate and sketch a schematic diagram. State any assumptions that you make.
(b) Indicate how you would classify your control scheme, for example, feedback, cascade, or feedforward. Briefly justify your answer.
(c) Draw a block diagram for the controlsystemaste your question here...
A precipitate forms only when Na2SO4 is added. Which cations could be present in the unknown soluble ionic compound? Explain your answer, and write down any calculations you may have undertook in the process of answering it.
Kyoto box is a simple solar oven used extensively in Africa. Assuming a square box with four reflectors of L = 75 cm, on a sunny day with direct sunlight from the zenith, what is the optimum angle ?? What is the total solar power received by the b..
Explain in detail the working of the instrument. Description should include neat diagram, principle of working and the source of literature.
You have just been hired as part of the opening management team for a new restaurant in the area. As a group, chose 1 of the concepts from a team members' Week One Individual Project to utilize as your restaurant.
A spherical ball of benzoic acid (diameter = 1.5 cm) is submerged in a pool of still water. The solubility and diffusivity of benzoic acid in water are 0.03 kmol/m3 and 1.25 x 10-9 m2/srespectively.
Assume that an As i mplant leads to a uniform electron concentration of 1019 cm·3 down to a depth of 0.1 µm and a mobility of 100 cm2 .V1 .s·1 . Determ ine the resistivity and the sheet resisti vity of the implanted layer.
All other expenses except depreciation would be unchanged. If the old canning unit can be sold for $600, what replacement return on his capital investment will the owner receive if he decides to make the replacement?
Problem 2: Methane containing 4 mol% N2 is flowing through a pipleline at 105.1 kpa and 22 °C. To check this flow rate, N2 at the same temperature and pressure are introduced to the pipleline at the rate of 2.83 m3/min.
Grams of tin and lead, An alloy is 7 parts tin and 3 parts lead. How many grams of each are in 40g of the alloy? Let x= the number of grams of tin in the 40g of the alloy.
Determine the Probability that an Ahmed energy state is occupied by an election it the slide is above the Fermi level by KT.
Explains the mechanism of catalysis.
In a process for the production of acrylic fibers by the emulsion polymerization of acrylonitrile, the unreacted monomer is recovered from water by distillation. Acrylonitrile forms an zoetrope with water and the overhead product from the column c..
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