Tests were run on two miniature bayonet Type 347 stainless steel boilers. NaK at 800 deg F was used to heat the water to 488 deg F (600 psig) which contained the equivalent of 2000 ppm NaK (78% K). The tests were run for 10 days to determine if quantities of caustic of the above magnitude would cause cracking of the tube sheets if a specified boiler water treatment was used. Visual inspection and a mass spectrometer leak test at MSA and preliminary metallographic examination at B & W indicated that the boilers were not adversely affected by operation with this quantity of caustic. (auth)

agree within approximately fate solution a 25% of WAPD (Bettis Plant) correlation. The film boiling data do not appear to yield to correlation over the range investigated in this experiment. The partial film boiling coefficients found in this experiment range from approximately 100 to 10,000 Btu/hr sq ft- F. (auth)