METHOD OF DETERMINING BOILING HEAT TRANSFER COEFFICIENT

摘要

Usage: region thermophysical Skog experiment to determine the heat transfer coefficient of boiling, condensation and convective heat transfer. SUMMARY OF THE INVENTION: electrocution heated test section of the tube-heater placed in the test liquid, and simultaneously sub ayut cooling medium in the condenser tube. Measured power of the electric current and the saturation temperature of the sample liquid boiling at steady mode. Is carried out feeding the cooling medium at the same rate as the tube-condenser in trubku- nagrevatel.Odnovremenno heated test section twice current power, temperature of the cooling medium is varied to achieve the initial value of the saturation temperature of the sample liquid. Measured flow rate and the coolant temperature at the inlet and outlet of the heater and condenser with identical geometrical dimensions and material. From the measured values ​​of m is determined by calculation of heat transfer coefficients for each type heat exchange process. 1 yl. ate with