THERMAL CONDUCTIVITY OF THE SYSTEM "LIQUID METHYL BUTYL KETONE+SINGLE-WALL, MULTI-WALL CARBON NANOTUBES" AT DIFFERENT TEMPERATURES AND PRESSURES
The paper presents the results of an experimental study of the thermal conductivity of liquid methylbutyl ketone both in pure form and embedded in a certain amount of CNT in the temperature range (from 293K to 640K) at atmospheric pressure from 0,101-45MPa. To measure the thermal conductivity of methyl butyl ketone and (CNT) solutions, the heated filament method was used. The total relative error in measuring the effective thermal conductivity of nanofluids at a confidence level α=0.95 is 2.6%. Based on the results of experimental studies of the thermal conductivity coefficient of the studied nanofluids (methylbutyl ketone + CNT), a graph of the dependence of the thermal conductivity coefficient on temperature, pressure and concentration of a single-walled carbon nanotube and a multilayer carbon nanotube was plotted.