Choose two temperature sensing technologies, and critically assess their appropriateness for the use in the described process of beer production from start to end
A client wishes to install a line for Beer production, and needs procurement of following sensors:
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Temperature sensors for the control of the following processes:
o Kilning process ( typically 50-105 0C) o Mashing (62-72 0C)
o Fermentation(7-230C)
o Maturation (0-15 0C) 0
o Pasteurisation (60-70 C)
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pH Sensors for Mashing (pH=5.5)
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Level, Pressure and Flow sensors, which will enable smooth automated process.
The student needs to help the client with the choice of sensors, and control valves and in order to do so should write report and recommendations on the following topics:
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Choose two temperature sensing technologies, and critically assess their appropriateness for the use in the described process of beer production from start to end. (Max: 1000 words)
(15 marks)
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Identify some points in the beer production process, where flow sensors could be used. In your opinion, what sensing technologies for flow sensing would be the most appropriate in those cases? (Max 700 words)
(10 marks)
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What are the most common ways of measuring pH? What would you suggest as appropriate technology for pH measurement during mashing process of beer
production? Critically assess alternative solutions. (Max 700 words) (10 marks)
4. Specify the type and dimension (flow capacity) of a valve to be used in the process of empting tank for fermentation (Figure 1). The valve should be 6m below the level of the bottom of the vessel, and the vessel has max volume capacity of 1800 hectoliters. The vessel can be vented (open) at the top. The vessel is of cylindrical shape, flat at the bottom, and when full the level is 12m. Specify the min flow coefficient of the valve, so that the tank full of beer (with 9% v/v alcohol) and at a normal temperature can be emptied in 45 min. You are allowed to take sensible approximations and assumptions, but more precise calculations, which take account more variables will be higher marked, i.e. for the full mark integro-diferential calculation should be used. (max 1000 words)
(15 marks)
(Total 50 marks)
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