The Distribution of Heat Losses in a Tank Furnace System

JSGT 1935 V19 T319-T329

 The tank furnace investigated was regeneratively fired and produced approximately 50 tons per week of electric light bulbs. Expressed as a percentage of the heat content of the coal the main losses were 22·3% in the producer and flue to the gas valve; 37·2% from the furnace structure; 7% from the regenerators and 25% stack loss, of which the excess air used for combustion accounted for 2·5%. The efficiency of the furnace was 7·3%, and of regeneration 57%. The application of insulation to the crown cut down the loss from it from 6 to 3%. The heat balance was compared with those published previously for three bigger furnaces, the efficiencies ranging from 10 to 19·1%.

 H. S. Y. Gill