R 96 Rutin, S. B. Apparatus for studying heat transfer in nanofluids under high-power heating [Electronic resource] / S. B. Rutin, P. V. Skripov // Journal of Engineering Thermophysics. - 2012. - Vol.21, №2. - P144-153. - Bibliogr. : p. 153 (19 ref.) Рубрики: ФИЗИКА Кл.слова (ненормированные): HEAT TRAHSFER -- HIGH-POWER HEATING -- ELECTRONIC CONTROL Аннотация: A technique of electronic control of the probe heating power is developed using the method of controlled pulse heating of a wire probe, that is a resistance thermometer, was developed. An apparatus implementing this technique was fabricated. The characteristic parameters of the apparatus are as follows: the heating pulse length, 1 to 10 ms; the heat flux density through the surface of a 20 µm probe, 1 to 10 MW/m2; repeatability of selected power value in a series of pulses is on a level of 0.05%. As an example, the constant heating power mode is applied for comparing the thermal resistance of nanofluids in the region of stable states of liquid and superheated (with respect to the liquid-vapor equilibrium temperature of the base liquid) ones. The parameter was the content of Al2O3 nanoparticles in the base liquid (isopropanol). \\\\expert2\\NBO\\Journal of Engineering Thermophysics\\2012, V.31, N 2. P. 144-153.pdf |