Abstract:
Data on critical heat loads $q_{\mathrm{cr}}$ for the saturated and unsaturated pool boiling of water and ethanol under atmospheric pressure are reported. It is found experimentally that the critical heat load does not necessarily coincide with the heat load causing burnout of the heater, which should be taken into account. The absolute values of $q_{\mathrm{cr}}$ for the boiling of water and ethanol on copper surfaces 65, 80, 100, 120, and 200 $\mu$m in diameter; tungsten surface 100 $\mu$m in diameter; and nichrome surface 100 $\mu$m in diameter are obtained experimentally.
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