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3. The temperature control system illustrated below is used to control the fluid exit temperature. Steam at 0.15kg/s enters the shell and tube heat exchanger via a control valve. This steam is manipulated such that the Hot Water temperature remains at 60C. The Warm Water flow (0.1kg/s) is usually disturbed by an upstream system. a) What is the action of the control valve? b) What is the action of the transmitter? c) Examine the Steam flowrate's effect on the Hot Water Temperature. d) Draw a well-labelled block diagram for the temperature control system