Effect of vaned diffuser on the performance of small turbocharger / Hilmi Amiruddin...[et al.]

Amiruddin, Hilmi and Wan Mahmood, Wan Mohd Faizal and Abdullah, Shahrir and Abu Mansor, Mohd Radzi and Abdollah, Mohd Fadzli and Mamat, Rizalman and Alias, Azri (2017) Effect of vaned diffuser on the performance of small turbocharger / Hilmi Amiruddin...[et al.]. Journal of Mechanical Engineering (JMechE), SI 1 (1). pp. 227-236. ISSN 1823-5514 ; 2550-164X


This work presents an experimental investigation of performance of small turbocharger compressor with vaned diffuser. The aim of the study is to investigate the effect of number vaned diffuser on peak pressure ratio in turbocharger. The study was carried out using cold-flow turbocharger test rig driven by compressed air with the impeller rotational speed from 40,000 to 70,000 rpm. Tests were conducted with 6, 8 and 10 number of vanes while maintaining the vane blades angle of 6°, turning angle of 30° and blade length of 21.8 mm. The vanes as a flow deflector were designed as a thin flat plate of 1 mm thickness. All the results were compared with original vaneless diffuser of the compressor. The results found that the proposed design of 6 and 8 vanes shifted the peak pressure ratio toward low mass flow rate region. It was observed that modification from conventional vaneless diffuser compressor to the one equipped with vaned diffuser has significant improvement on the overall pressure ratio of the turbocharger.


Item Type: Article
Email / ID Num.
Amiruddin, Hilmi
Wan Mahmood, Wan Mohd Faizal
Abdullah, Shahrir
Abu Mansor, Mohd Radzi
Abdollah, Mohd Fadzli
Mamat, Rizalman
Alias, Azri
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Universiti Teknologi MARA, Shah Alam > Faculty of Mechanical Engineering
Journal or Publication Title: Journal of Mechanical Engineering (JMechE)
UiTM Journal Collections: UiTM Journal > Journal of Mechanical Engineering (JMechE)
ISSN: 1823-5514 ; 2550-164X
Volume: SI 1
Number: 1
Page Range: pp. 227-236
Keywords: Turbocharger; Vaned Diffuser, Compressor, Pressure Ratio
Date: 2017
URI: https://ir.uitm.edu.my/id/eprint/37108
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