Q3 a) Explain what is meant by interaction and give two examples of processes wh
ID: 3349224 • Letter: Q
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Q3 a) Explain what is meant by interaction and give two examples of processes where interaction is present (you may not use the blending example in Part b) of this question). 10 Marks b) The tank, as shown, is used to mix a 50 % solution of NaOH (caustic) to produce a dilute solution. The product specification is 30 % mass caustic and the design flow rate is 4000 kg/hr It is desired to control the product flow, Wp, and the composition, xp, by manipulating the flow of the two inlet streams. i Obtain the steady-state, open loop gains of the system and the relative gains at 25 Marks] 8 Marks] iii) Which pairing of controlled and manipulated variables minimises the effect of 7 Marks] the design conditions. Is the interaction negative or positive? Why? ii) interaction? Why? om - Ki2K2 K,K SP SP SP SP AT FT FC FTExplanation / Answer
a.)Interaction is a kind of action that occur as two or more objects have an effect upon one another. The idea of a two-way effect is essential in the concept of interaction, as opposed to a one-way causal effect. A closely related term is interconnectivity, which deals with the interactions of interactions within systems: combinations of many simple interactions can lead to surprising emergentphenomena.
Example-1. The interaction b/w the molecules of water and salt when salt is put in it.
2. The chemical composition of the substance.
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