抄録
Some alcohol solutions such as butanol show non-linear surface tension dependence. It is known that dryout of the heat surface is inhibited by Thermal Marangoni Effect of non-linear surface tension. These solutions are called Self-rewetting Liquids. Boiling heat transfer of butanol aqueous solution is studied in experimental systems of forced convection boiling. This test is also performed inside a mini channel. Mass flux is 1286kg/m^2s or 2374kg/m^2s, subcooling was changed from 0K to 50K. Bulk liquid concentration changed from 0.00wt% to 7.15wt%. Wall temperature was measured by using thermocouple and radiation thermometer. At high mass flux (G=2374kg/m^2s), CHF of butanol aqueous solution is from 20% to 50% higher than that of pure water in subcooled region. Burnout of butanol aqueous solution was Fast Burnout (Upper stream CHF).
