The Experts below are selected from a list of 88473 Experts worldwide ranked by ideXlab platform

Azri Alias - One of the best experts on this subject based on the ideXlab platform.

  • Application of Taguchi Method in optimization of design darameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose – The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach – Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings – The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of bladesand blade angle produced the least effect on the Pressure Output. Originality/value – The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

  • Application of Taguchi method in optimization of design parameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose: The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach: Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings: The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of blades and blade angle produced the least effect on the Pressure Output. Originality/value: The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

Hilmi Amiruddin - One of the best experts on this subject based on the ideXlab platform.

  • Application of Taguchi Method in optimization of design darameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose – The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach – Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings – The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of bladesand blade angle produced the least effect on the Pressure Output. Originality/value – The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

  • Application of Taguchi method in optimization of design parameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose: The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach: Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings: The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of blades and blade angle produced the least effect on the Pressure Output. Originality/value: The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

Osman Eroğul - One of the best experts on this subject based on the ideXlab platform.

  • Capacitive micromachined ultrasonic transducer: transmission performance evaluation under different driving parameters and membrane stress for underwater imaging applications
    Microsystem Technologies, 2020
    Co-Authors: Abdullah İrfan Yaşar, Fikret Yıldız, Osman Eroğul
    Abstract:

    Transmission performance of a CMUT element in terms of Output Pressure and displacements was evaluated. A SIMULINK model of single CMUT element based on mechanical model of MEMS capacitor was used and the analyses were performed under different ac and dc conditions. 2.6 µm thick Si, Poly-Si and Si_3Ni_4 membranes with a radius 60 µm were used to obtain results for underwater imaging application. Relation between membrane stress and Outputs of CMUT was also investigated using SIMULINK model for commonly used CMUT membrane made of Si_3Ni_4 and polysilicon membrane under different electrical driving parameters. It was observed that different ac signal inputs (sine, square and sawtooth) showed different effects on CMUTs Pressure and displacement characteristics. Our results indicated that the maximum Output Pressure and displacement were obtained in a square waveform. In addition, although stress on membrane increases the displacement and Pressure of CMUT membrane made of Poly-Si, quality factor inversely proportional to stress on membrane. Membrane stress has adverse effect on Si_3Ni_4 membrane transmission Outputs. The used model in this study might enable to determine optimum driving electrical inputs and stress on membrane to control CMUT Outputs in terms of Output Pressure, displacement, quality factor and bandwitdh.

  • Capacitive micromachined ultrasonic transducer: transmission performance evaluation under different driving parameters and membrane stress for underwater imaging applications
    Microsystem Technologies, 2020
    Co-Authors: Abdullah İrfan Yaşar, Fikret Yıldız, Osman Eroğul
    Abstract:

    Transmission performance of a CMUT element in terms of Output Pressure and displacements was evaluated. A SIMULINK model of single CMUT element based on mechanical model of MEMS capacitor was used and the analyses were performed under different ac and dc conditions. 2.6 µm thick Si, Poly-Si and Si_3Ni_4 membranes with a radius 60 µm were used to obtain results for underwater imaging application. Relation between membrane stress and Outputs of CMUT was also investigated using SIMULINK model for commonly used CMUT membrane made of Si_3Ni_4 and polysilicon membrane under different electrical driving parameters. It was observed that different ac signal inputs (sine, square and sawtooth) showed different effects on CMUTs Pressure and displacement characteristics. Our results indicated that the maximum Output Pressure and displacement were obtained in a square waveform. In addition, although stress on membrane increases the displacement and Pressure of CMUT membrane made of Poly-Si, quality factor inversely proportional to stress on membrane. Membrane stress has adverse effect on Si_3Ni_4 membrane transmission Outputs. The used model in this study might enable to determine optimum driving electrical inputs and stress on membrane to control CMUT Outputs in terms of Output Pressure, displacement, quality factor and bandwitdh.

R. Mamat - One of the best experts on this subject based on the ideXlab platform.

  • Application of Taguchi Method in optimization of design darameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose – The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach – Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings – The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of bladesand blade angle produced the least effect on the Pressure Output. Originality/value – The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

  • Application of Taguchi method in optimization of design parameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose: The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach: Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings: The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of blades and blade angle produced the least effect on the Pressure Output. Originality/value: The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

Mohd Radzi, Abu Mansor - One of the best experts on this subject based on the ideXlab platform.

  • Application of Taguchi Method in optimization of design darameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose – The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach – Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings – The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of bladesand blade angle produced the least effect on the Pressure Output. Originality/value – The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure

  • Application of Taguchi method in optimization of design parameter for turbocharger vaned diffuser
    'Emerald', 2017
    Co-Authors: Hilmi Amiruddin, Wan Mohd Faizal, Wan Mahmood, Shahrir Abdullah, Mohd Radzi, Abu Mansor, R. Mamat, Azri Alias
    Abstract:

    Purpose: The purpose of this study is to determine the best vaned diffuser design that can generate higher Pressure Output at a predetermined speed. Design/methodology/approach: Several vaned diffusers of thin, flat-type design with different number of blades and blade angle were fabricated. The vaned diffusers were fitted inside the turbocharger compressor and test on a cold-flow turbocharger test rig. A Taguchi L27 orthogonal array is selected for analysis of the data. Influence of number of blades, blade angle and rotational speed on Output Pressure is studied using the analysis of variance (ANOVA) technique. Finally, confirmation tests are conducted to validate the experimental results. Findings: The optimum design parameters of the vaned diffuser using signal-to-noise ratio analysis were six blades type, blade angle of 18° and rotational speed of 70,000 rpm. Results from ANOVA showed that the speed has the highest influence on Output Pressure. The number of blades and blade angle produced the least effect on the Pressure Output. Originality/value: The study used the turbocharger with the impeller size 60 mm and adapted vaned diffuser to increase the Output Pressure