An Investigation of the Variation in Heat Absorption in a Pulverized-Coal-Fired Water-Cooled Steam-Boiler Furnace: IV—Comparison and Correlation of the Results of Furnace Heat-Absorption Investigations

In this part of the symposium the three preceding sections of the report are compared, and satisfactory coordination is accomplished for the first two sections. The tube-surface temperature measurements show furnace heat absorptions which can be co-ordinated with the absorptions indicated by the surveys of the gas conditions at the furnace outlet by applying a correction to the gas-temperature measurement, or by varying the tube-to-water film conductance. A method of evaluating furnace cleanliness is developed and applied. A suggested basis of comparing furnaces is discussed.