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A system can be represented by the block diagram below:
A) Derive (write the different steps explicitly. not just the solution!) the closed-loop transfer function relating the set point (Ysp) to the output Y
B) Derive (write derivations explicitly. not just the solution!) the closed-loop transfer function relating the disturbance (D) to the output Y
C) The system contains a feedfonvard controller Gf. Will this feedfonvard controller have an influence on the stability of the system? Motivate your answer (yes or no is not considered as a sufficient answer. you need to explain why you answer yes or no).
At Chernobyl in 1986, hydrogen was produced by the reaction of superheated steam with the graphite reactor core: C(s)+H2O(g) yields CO(g)+H2(g) It was not possible to prevent a chemical explosion at Chernobyl
oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9 sulfur trioxide. a.
Derive an equation for the latent heat of fusion that is a function of the radius of the particle. Using this equation, for a copper particle that has a radius of 2.5 nm, find the ratio of the latent heat of fusion of the particle to the laten..
in the direct steelmaking reactor based on the reduction of an oxidizing foaming slag by char carbon particles and
At a pressure of 10 bar, determine the bubble and dew point of a mixture of hydrocarbons, composition, mol%: n-butane 21, n-pentane 48, n-hexane 31. The equilibrium K factors can be estimated using the De Priester charts in Dadyburjor (1978) or fo..
What mass of ethylene glycol, HOCH2CH2OH, must be dissolved in 4.510 kg of water to result in a freezing point of 18.0°C? What is the boiling point of the same solution?
Write four balanced equations for this system. Identify where any constitutive equations may be required for the modelling processes.
The volume of each stirred tank is 40,000 liters. In passingthrough this system, by how much has the activity decayed? The reaction follows first order kinetics with a constant density
1a / state the formula giving flowrate (qv) in terms of valve flow coefficient, pressure drop across the valve and relative density of fluid. State the units of the variables in the formula.
Strontium fluoride, SrF2, has a Kspvalue in water of 2.45 × 10-9at room temperature. Calculate the solubility of SrF2in water. Express your answer in units of molarity.
A reverse osmosis plant is to be designed to produce 50 kg/s of boiler feed water with less than 20 ppmw of NaCl starting from sea water that contains 3.5 wt% NaCl. The 40 m2 membrane modules operate at 60 atm and achieve a flux of 0.4 m3 /m2 .day..
A strip of metallic scandium, Sc, is placed in a beaker containing concentrated nitric acid. A brown gas rapidly forms, the scandium disappears, and the resulting liquid is brown-yellow but becomes colorless when warmed. These observations best su..
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