AbstractsEngineering

Test apparatus and appropriate instrumentation has been designed to experimentally study the Boiling Crisis and determine the Critical Heat Flux of water flow under forced convection. A description of the regimes and boiling mechanisms of pool saturated boiling is presented here, and the nature of the boiling crisis and its attendant heat flux described. Representative correlations of critical heat-flux for subcooled flow boiling are presented in tabular form. Since test apparatus for tide type of work involves relatively high fluid pressures and temperatures, some attention has been given to designing operating safety into the system. Likewise, attention has been given to the maintenance of cleanliness and the determination of the distilled water PH factor by use of stainless steel flow lines, screening devices and a PH meter. Specifications and drawings, reflecting these objectives, are presented in this report as a part of the apparatus design section.