A furnace wall in the pharmaceutical industry is constructed from 220 mm of heat resistan clay bricks, 150 mm of face bricks, 50 mm of 85% magnesia and 3 mm of metal plate on the outside. If the inside surface temperature is 1500°C and the outside surface temperature is 90°C, calculate the following: 3.1 The heat loss in kJ/h m². 3.2 The temperature between layers; NB: k (heat resistant clay bricks) = 4 kJ/mh°C; k (Face brick) = 2.8kJ/mh°C; k (85% magnesia) = 0.24KJ/m h°C; and k (metal plate) = 240 kJ/m h°C

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A furnace wall in the pharmaceutical industry is constructed from 220 mm of heat resistant
clay bricks, 150 mm of face bricks, 50 mm of 85% magnesia and 3 mm of metal plate on the
outside. If the inside surface temperature is 1500°C and the outside surface temperature is
90°C, calculate the following:
3.1 The heat loss in kJ/h m2.
3.2 The temperature between layers;
NB: k (heat resistant clay bricks) = 4 kJ/mh°C; k (Face brick) = 2.8kJ/mh°C;
k (85% magnesia) = 0.24kJ/m h°C; and k (metal plate) = 240 kJ/m h°C
Transcribed Image Text:A furnace wall in the pharmaceutical industry is constructed from 220 mm of heat resistant clay bricks, 150 mm of face bricks, 50 mm of 85% magnesia and 3 mm of metal plate on the outside. If the inside surface temperature is 1500°C and the outside surface temperature is 90°C, calculate the following: 3.1 The heat loss in kJ/h m2. 3.2 The temperature between layers; NB: k (heat resistant clay bricks) = 4 kJ/mh°C; k (Face brick) = 2.8kJ/mh°C; k (85% magnesia) = 0.24kJ/m h°C; and k (metal plate) = 240 kJ/m h°C
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