Turbomachinery miniaturization has been an emerging research field during the last decades and, especially, micro-scale radial compressors are becoming increasingly relevant due to development of high-speed electric motors. They can be found in a wide range applications such as micro gas turbines, aerial unmanned vehicles propulsion, fuel cells and even medical ventilators. Furthermore, use cen...

Abstract Gas Turbine Compressors are used by Saka Indonesia Pangkah Ltd. in upstream oil and gas facilities either to boost hydrocarbon products downstream or lift liquid as a common artificial method. As production rate declining leads supply deficiency the compressors, operating point move surge line away from best efficiency point. feed shortage affecting compressor’s performance which contr...

The blade tip clearance is a crucial factor in the compressor performance and aeroacoustics. There are usually main blades splitter blades, two different types of centrifugal compressors. Keeping almost same work input, three configurations were designed which gaps uneven. Then experimental investigations carried out to study influence uneven clearances on aeroacoustic characteristics results s...

Abstract: This paper is focused on the performance of centrifugal compressors for vehicle turbochargers operating at high altitude. The reasons for turbocharged diesel engine power loss increases and bad economy performance caused by exhaust gas energy utilization are investigated. The atmosphere’s impact on the turbocharger centrifugal compressor’s energy distribution characteristics under the...

This paper presents a new design method of balance weights with phase angles for scroll compressors. Based on force and moment balances on crankshaft and compressor frame, mathematical formulation of shaft bearing loads, unbalanced force and moment acting on the frame has been made in terms of balance weight design parameters such as masses and phase angles of the upper and lower balance weight...