INTERNATIONAL SCIENTIFIC RESEARCH CONGRESS DEDICATED TO THE 30TH ANNIVERSARY OF BAKU EURASIA UNIVERSITY, Baku, Azerbaycan, 27 - 28 Nisan 2022, ss.1523-1531
Ranque-Hilsch Vortex Tube (RHVT) is a system that
consists of a simple pipe, has no moving parts except the control valve, works
with pressurized fluid, and making both cooling and heating processes at the
same time. Air is generally used as the pressurized fluid in RHVT, and oxygen
gas was used as fluid in the experimental study. In this study, a counter-flow
RHVT with a body length of 100 mm and an internal diameter of 7 mm, which has
no moving parts except for the control valve on the hot fluid outlet side, was
used to adjust the volumetric flow rates. In counter flow RHVT, two, three,
four, five and six orifice nozzles made of polyamide and brass materials were used. In the experimental
study, the control valve on the hot fluid outlet side was left in the fully
open position. The performance of the RHVT was optimized in terms of the
difference (ΔT) between the temperature of the outpoint hot flow (Tsck)
and the temperature of the outpoint cold flow (Tsgk) by using
pressurized oxygen gas at 50 kPa intervals between the inlet pressure of 150
and 700 kPa. For this purpose, Linear Regression (LR) and Gaussian Process
Regression (GSR) methods, which are machine learning methods, were used
separately in the optimization of the performance of RHVT. The obtained results
were compared with the analysis results using experimental data.