Abstract:
In experiments on the controlled pulsed heating of a substance, the heat transfer to aqueous glycols and propylene glycols solutions was compared in the full range of compositions. The research was conducted in the field of stable and superheated states. The used mode involved the thermostabilization of a probe heater when a specified temperature was reached. The typical heating duration was $10$ ms. The general feasibility of the measurement of primary quantities in aqueous solutions superheated with respect to the liquid–vapor equilibrium temperature is shown. In test experiments with an aqueous solution of PPG-$425$ polypropylene glycol, the measurements were carried out with short-term superheating relative to the liquid–liquid equilibrium temperature, as well as in a certain range of compositions relative to the temperature of the diffusion spinodal of the solution.
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