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Metal plates (k = 180 W/m-K, Q = 2800 kg/m3, and cp = 880 J/kg-K) with a length of 1 m and a thickness
Metal plates (k = 180 W/m-K, Q = 2800 kg/m3, and cp = 880 J/kg-K) with a length of 1 m and a thickness of 2 cm exiting an oven are then conveyed through a 10-m-long cooling chamber at a speed of 5 mm/s. The plates enter the cooling chamber at an initial temperature of 155C. In the cooling chamber, the plates are cooled with 10C air blowing in parallel over them. To prevent any incident of thermal burn, it is necessary to design the cooling process such that the plates exit the cooling chamber at a relatively safe temperature. Cooling chamber 5 mm/s Determine the air velocity such that the temperature of the plates exiting the cooling chamber is 45C or less. Assume combined laminar and turbulent flow (verify this assumption). Use the lumped system analysis to determine the required cooling time (verify application of this method to this problem). Use EES to solve this problem and submit the code along with your solution. 2 cm ELLI Metal plate ttttt Blowing air, 10C
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To determine the air velocity and the required cooling time for the metal plates we can use the lumped system analysis This method assumes that the entire plate can be considered as a single lumped ob...Get Instant Access to Expert-Tailored Solutions
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