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You have just joined the design and development group at Panasonic, Inc. The first task you...

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Mechanical Engineering

You have just joined the design and development group atPanasonic, Inc. The first task you are given is to work on thedesign of a thermal system to anneal TV glass screens. Each screenis made of semi-transparent glass and weighs 10 kg. You need toheat it from a room temperature of 25°C to 1100°C, maintain it atthis temperature for 15 minutes, and then cool slowly to 500°C,after which it may be cooled more rapidly to room temperature. Theallowable rate of temperature change with time, ∂T/∂t, is given forheating, slow cooling, and fast cooling processes. Any energysource may be used and high production rates and uniform annealingare desired. (a) Give the sketch of a possible conceptual designfor the system and of the expected temperature cycle. Briefly givereasons for your choice. (b) List the requirements and constraintsin the problem. (c) Give the location and type of sensors you woulduse to control the system and ensure safe operation. Brieflyjustify your choices (d) Outline a simple mathematical model tosimulate the process.

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