Abstract
Some advantages of the semi-luminous flame for oil-burning furnaces are taken up in the early part of the paper. To assist in understanding some of the mechanics involved in obtaining the semi-luminous flame, the diagrammatic sketch, Fig. 2, labels a few of the happenings shown in Fig. 1. Fig. 2 shows four main branches, A, B, C, and D, coming off from the flame. Each of these branches has in it several blocks labeled with some of the factors involved. Branch A deals with oil atomization, primary air, and initial chemical reactions. Branch B deals with secondary combustion air, final chemical reactions, etc. Branch C explains the thermal setting for proper flame temperature. Branch D takes up the specially designed steel boiler made necessary to coordinate properly the many factors involved (such as proper size and correct proportion of the combustion chamber) to obtain the clean, quiet, efficient semi-luminous flame.