Question: For the fired heater in Figure
(i) no change is allowed for the final elements,
(ii) sensors must be added, and
(iii) the feed rate and product outlet temperature must be controlled. Briefly state a reasonable set of control objectives and design a control strategy.
(a) Briefly give the algorithm and purpose for each controller.
(b) Sketch the strategy on the diagram.
(c) Give the failure positions for the final elements.
