Without heat removal the anticipated pumping power of 1000 hp for the primary salt pump would raise the temperature of the approximately 100 ft3 of circulating salt nearly 6 °F per minute. A study was made of an open cycle system designed to remove 3-82 X 10^s Btu/hr, that is, to accommodate 1500 hp pumping power.
    Several different heat removal systems were investigated to provide a tolerable noise level, reasonable physical size, safety, economical and simple construction and operation, and minimum maintenance. Systems investigated included (l) thermal convection salt-to-air radiator, (2) forced circulation salt-to-air radiator, (3) salt-to-steam heat exchanger