61. 



DR. LINDSEY: At Hanford most of the energy would be re- 

 leased in boiling and in the ground. 



DR. HUBBERT: The primary concern is how much energy is 

 needed to make these brickettes. 



MR. STRUXNESS: Yes. 



DR. HUBBERT: Is this heating element shaped like a doughnut, 

 hollow inside? 



MR. STRUXNESS: Yes. 



In experiment No. 4, the set up is as follows: in the inner con- 

 tainer is acid aluminum nitrate waste plus the clay flux mixture, sur- 

 rounded with foam glass, and with vermiculite in the outer container. 

 The diameter of the inner container is 12 inches, the foam glass con- 

 tainer is 20 inches, the hot pot outer container is 36 inches, the height 

 is 48 inches, and the inner liquid is 24 inches. With an input of 40 

 watts the temperature rose to almost 100 degrees Centigrade in 3 days, 

 Then the power was increased to 100 watts and the temperature rose 

 rapidly, and at about the fifth day it was somewhere between 110 and 

 120 degrees. Beginning at about the third day, and extending to the 

 tenth day, it bubbled and steamed. Beginning about the sixth day the 

 temperature began to increase slowly and NC*2 fumes began to appear. 

 This continued until the nineteenth day, the temperature gradually in- 

 creasing --on the fifteenth day, the temperature had risen to about 

 250. 



By the twentieth day the temperature had risen to 300°C. , at 

 which point practically all the nitrogen oxide had been released. Then 

 the temperature began to rise more abruptly, so that by the thirtieth 

 day the temperature had risen to 460°C; the reason for this was that 

 after the liquid had been evaporated and the nitrogen oxide fumes had 

 been evolved, an insulating material was added above the dry mass. 



Now a word about what happens in the inner container: the level 

 of the liquid was 24 inches, the diameter 12 inches. As the level 

 dropped 10 inches nothing clung to the walls. Then dropping from 10 

 to 17 inches the material did cling to the walls. The reduction of the 

 waste and clay flux mixture was from 24 inches to something on the 

 order of 8 inches. The heater failed, so temperatures could not be 

 raised further but the mass seemed to be fairly well fused. Dr. 

 Johnson's description of the consolidation is as follows: 



