A HEN will involve the four process streams and two utilities shown above. A minimum approach of 30°C will be used for design purposes. Set up the problem table for the network and use it to determine the hot and cold stream temperatures at the pinch and the minimum-utility targets for the system. Ans. 150°C, 120°C, 475 kW (hot), 455 kW (old)

(b) (c) Page 5 of 6 Calculate the gain, in percent transmitter output (%TO) per variable unit (specify units), write the transfer function, and draw the block diagram for a temperature transmitter with a range of 100 to 150°C and time constant of 1.2 minutes. Determine the transfer function relating Y(s) to X1(s) and X2(s) from the block diagram shown in Figure Q6 on page 6. Module code: CAPE203001 O X1(s) Toboz G3 G₂ G₁ X₂(s) G 700 Y2 Figure Q6 Turn the page over Y(s)

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A biofuel production process is carried out in a 10,000 L stirred tank with a diameter of 2 m. Agitation will be provided at 100 rpm. The impeller diameter is half of the tank diameter, and the dimensionless power number Np is 1.0. You can assume that the liquid has the properties of water. Note that the agitation speed N = 2nn where n is the agitation speed in rpm. Questions: 1. How much power will be required of the motor? 2. If you scale down the reactor to a volume of 10 L (keeping geometric similarity), what would the agitation speed required to keep the power / volume ratio constant?

Title: Paper Mill Starch Preparation Plant   Considering the following equipment’s, which includes: 1. A storage tank containing a mixture of flour, water, and enzymes2. A jet cooker utilising steam and water to cook the starch3. A plug flow reactor containing cooked starch4. A static mixer 5. A filter to filter and purify the cooked starch 6. A storage tank with cooked starch   Based on the equipment’s mentioned, what are each equipment's: - Hazardous event or situation- Caused by/sequence of events- Consequences (immediate/ultimate)- Emergency measures (to reduce consequences)- Likelihood (Suggested measures to reduce likelihood)   ❗️Riminder: When answering the questions above, think about: What's the worst thing (worst-case scenario) that could happen to the equipment and causes harm to people, plant and the environment?

Title: Paper Mill Starch Preparation Plant   Considering the following equipment’s, which includes: 1. A storage tank containing a mixture of flour, water, and enzymes2. A jet cooker utilising steam and water to cook the starch3. A plug flow reactor containing cooked starch4. A static mixer 5. A filter to filter and purify the cooked starch 6. A storage tank with cooked starch   Based on the equipment’s mentioned, what are each equipment's: - Hazardous event or situation- Caused by/sequence of events- Consequences (immediate/ultimate)- Emergency measures (to reduce consequences)- Likelihood (Suggested measures to reduce likelihood)   ❗️Riminder: When answering the questions above, think about: What's the worst thing (worst-case scenario) that could happen to the equipment and causes harm to people, plant and the environment?