Radiation emitted in Gaseous Explosions. 81 



22. A glance at these curves shows at once that a close rela- 

 tionship exists between the total radiation emitted and the 

 maximum gas temperatures developed in the various mix- 

 tures, and in fig. 6 the total radiation received by the walls 

 per sq. cm.* has been plotted against the maximum gas 

 temperatures. It will be noted that the total radiation is a 

 linear function of the maximum temperature. The equation 

 to this line is 



R T = O-OOO56(0 max .-7OO) (11) 



(b) Variation of Total Radiation with Density and 

 Cylinder Dimensiojis. 



23. The writer does not possess sufficient records to enable 

 him to plot similar curves to that in fig. 6 for other densities. 



Fig. 6. 



10 



1 



h 



■<3 



■6 



'I 



bv 



0-8 



0-6 



0-4 



0-2 



*s* 



!600 



1800 

 fV7ax/'rrJU/T? 



2400 

 °C &6s. 



2600 



2000 2200 



G&s Temperature 



* The radiation values in fig. 6 are those shown in fig. 5 multiplied 

 0'95 so as to give the mean values over the whole vessel. 



Phil. May. Ser. 6. Vol. 39. No. 229. Jan. 1920. G 



