Management of thermal and mechanic flow characteristics in the output channels of a turbocharger centrifugal compressor

Abstract

It is known that the thermal and mechanical characteristics of the air flow in the output channel of a turbocharger compressor largely determine the effectiveness of the gas exchange processes quality of a piston engine. The studies were carried out on an experimental installation containing a turbocharger, output channels of different configurations, a measuring base, and a data collection system. It was found that stabilization of the flow in the compressor output channel leads to a significant increase in heat transfer intensity (up to 25 %) compared to the baseline pipeline while simultaneously reducing the turbulence number by up to 30 %. A more significant increase in heat transfer intensity (up to 30 %) was observed in the output channel of the compressor with grooves compared to the base channel while simultaneously increasing the turbulence number by up to 12 %. The proposed configuration of the output channels of the compressor can be used to intensify heat transfer for the natural cooling of the air during the intake process. The configuration with a leveling grid can be used to stabilize the gas-dynamic flow parameters in order to reduce the hydraulic resistance of the intake system of a turbocharged engine.

Design and Analysis of Thermal Management System of Power Matching Transmission in Energy Machinery

“…Heat dissipation is needed for both the engine of engineering machinery and the hydraulic oil of hydraulic torque converter. The huge cooling demand cannot be satisfied with one cooling fan alone [19][20][21][22]. Naumenko et al [23] carried out the matching design for the cooling fan and radiator of engineering machinery, reconfigured the thermal parameters and component parameters of the hydraulic drive and transmission, and conducted experiments to compare the engine water temperatures and preheating times before and after system improvement; their electro-hydraulic hybrid drive cooling system was proved effective in cooling.…”

Modelo matemático de un plenum para obtener las características dinámicas del flujo másico de un turbocargador

“…En las máquinas térmicas, más específicamente en el campo de los motores de combustión interna, existe un gran interés en el estudio, análisis, operación y mantenimiento de los turbocargadores [1][2][3][4]. El turbocargador es una máquina térmica que influye directamente en el motor de combustión interna en mejorar su eficiencia, desarrollo y funcionalidad [5][6][7][8][9].…”