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Papers by Shuji Matsusaka

Advanced Powder Technology, Aug 1, 2022

CRC Press eBooks, Nov 29, 2006

CRC Press eBooks, Oct 16, 2019

DENSHI SHASHIN GAKKAISHI, 2007

DENSHI SHASHIN GAKKAISHI, 2007

Advanced Powder Technology, Dec 1, 2019

Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation ... more Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation than low pressure plasmas. Because the ions and/or electrons in the APPJ can be arbitrarily extracted to a gas-phase space by changing the DC bias voltage and efficiently deposited onto particle surfaces in an external electric field, this operating technique can be applied towards controlling particle charge. Several methods to control the particle charge using an APPJ system have already been reported. This article summarizes the specifications and operations of these systems, their mechanisms of charge transfer, and methods for particle charging, based on previously reported work. The methods are categorized into three groups, i.e., direct charging of particles, direct charging of a powder bed, and indirect charging of particles, and the corresponding experimental setups, procedures, results, and discussions are presented.

Advanced Powder Technology, Dec 1, 2019

Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation ... more Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation than low pressure plasmas. Because the ions and/or electrons in the APPJ can be arbitrarily extracted to a gas-phase space by changing the DC bias voltage and efficiently deposited onto particle surfaces in an external electric field, this operating technique can be applied towards controlling particle charge. Several methods to control the particle charge using an APPJ system have already been reported. This article summarizes the specifications and operations of these systems, their mechanisms of charge transfer, and methods for particle charging, based on previously reported work. The methods are categorized into three groups, i.e., direct charging of particles, direct charging of a powder bed, and indirect charging of particles, and the corresponding experimental setups, procedures, results, and discussions are presented.

Funtai Kōgakkaishi, 2006

Funtai Kōgakkaishi, 2006

The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. Th... more The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. The main parameters used for quantitative characterization of the phenomenon included induced current, particle charge density and equivalent current of the charged granular flow. These were measured using a Digital Electrometer, Faraday Cage and Modular Parametric Current Transformer (MPCT) respectively. Three different flow patterns corresponding to the different electrostatic effects within the pneumatic conveying system were observed and these were classified as the disperse flow, half-ring flow and ring flow patterns. It was found that the induced current, particle charge density and equivalent current increased with decreasing flow rates. Electrostatic effects generally become stronger with time and this may lead to clustering behavior occurring even in the disperse flow regime.

The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. Th... more The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. The main parameters used for quantitative characterization of the phenomenon included induced current, particle charge density and equivalent current of the charged granular flow. These were measured using a Digital Electrometer, Faraday Cage and Modular Parametric Current Transformer (MPCT) respectively. Three different flow patterns corresponding to the different electrostatic effects within the pneumatic conveying system were observed and these were classified as the disperse flow, half-ring flow and ring flow patterns. It was found that the induced current, particle charge density and equivalent current increased with decreasing flow rates. Electrostatic effects generally become stronger with time and this may lead to clustering behavior occurring even in the disperse flow regime.

Asian Pacific Confederation of Chemical Engineering congress program and abstracts Asian Pacific Confederation of Chemical Engineers congress program and abstracts, 2004

The movement of spherical particles in a twin roller system for size classification has been stud... more The movement of spherical particles in a twin roller system for size classification has been studied experimentally. The diameter of the particles used is 600 µm. The classification system consists of a feeder, a twin roller unit and containers for collecting particles classified. The two rollers can be set at a desired angle from the horizon. The rollers can be rotated at an arbitrary angular velocity. All the particles that are fed from the feeder move along the gap between the two rollers. As the gap width increases downward, the particles fall down at a point where the gap width exceeds the particle diameter and are collected in containers arranged in a row. The motion of the particles moving along the gap is observed through a high-speed camera connected with a microscope. The image analysis shows that the particles roll down with small jumping, and the rotation of the particles depends on the operating condition of the twin roller system. The particle velocity along the gap varies according to the jumping. The flight time, normal velocity, and distance can be calculated from the velocity difference of the particles before and after the contact with the rollers.

Asian Pacific Confederation of Chemical Engineering congress program and abstracts Asian Pacific Confederation of Chemical Engineers congress program and abstracts, 2004

The movement of spherical particles in a twin roller system for size classification has been stud... more The movement of spherical particles in a twin roller system for size classification has been studied experimentally. The diameter of the particles used is 600 µm. The classification system consists of a feeder, a twin roller unit and containers for collecting particles classified. The two rollers can be set at a desired angle from the horizon. The rollers can be rotated at an arbitrary angular velocity. All the particles that are fed from the feeder move along the gap between the two rollers. As the gap width increases downward, the particles fall down at a point where the gap width exceeds the particle diameter and are collected in containers arranged in a row. The motion of the particles moving along the gap is observed through a high-speed camera connected with a microscope. The image analysis shows that the particles roll down with small jumping, and the rotation of the particles depends on the operating condition of the twin roller system. The particle velocity along the gap varies according to the jumping. The flight time, normal velocity, and distance can be calculated from the velocity difference of the particles before and after the contact with the rollers.

Funtai Kōgakkaishi, 1995

Advanced Powder Technology, Aug 1, 2022

CRC Press eBooks, Nov 29, 2006

CRC Press eBooks, Oct 16, 2019

DENSHI SHASHIN GAKKAISHI, 2007

DENSHI SHASHIN GAKKAISHI, 2007

Advanced Powder Technology, Dec 1, 2019

Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation ... more Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation than low pressure plasmas. Because the ions and/or electrons in the APPJ can be arbitrarily extracted to a gas-phase space by changing the DC bias voltage and efficiently deposited onto particle surfaces in an external electric field, this operating technique can be applied towards controlling particle charge. Several methods to control the particle charge using an APPJ system have already been reported. This article summarizes the specifications and operations of these systems, their mechanisms of charge transfer, and methods for particle charging, based on previously reported work. The methods are categorized into three groups, i.e., direct charging of particles, direct charging of a powder bed, and indirect charging of particles, and the corresponding experimental setups, procedures, results, and discussions are presented.

Advanced Powder Technology, Dec 1, 2019

Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation ... more Atmospheric pressure plasma jets (APPJs) have more advantages regarding flexibility of operation than low pressure plasmas. Because the ions and/or electrons in the APPJ can be arbitrarily extracted to a gas-phase space by changing the DC bias voltage and efficiently deposited onto particle surfaces in an external electric field, this operating technique can be applied towards controlling particle charge. Several methods to control the particle charge using an APPJ system have already been reported. This article summarizes the specifications and operations of these systems, their mechanisms of charge transfer, and methods for particle charging, based on previously reported work. The methods are categorized into three groups, i.e., direct charging of particles, direct charging of a powder bed, and indirect charging of particles, and the corresponding experimental setups, procedures, results, and discussions are presented.

Funtai Kōgakkaishi, 2006

Funtai Kōgakkaishi, 2006

The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. Th... more The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. The main parameters used for quantitative characterization of the phenomenon included induced current, particle charge density and equivalent current of the charged granular flow. These were measured using a Digital Electrometer, Faraday Cage and Modular Parametric Current Transformer (MPCT) respectively. Three different flow patterns corresponding to the different electrostatic effects within the pneumatic conveying system were observed and these were classified as the disperse flow, half-ring flow and ring flow patterns. It was found that the induced current, particle charge density and equivalent current increased with decreasing flow rates. Electrostatic effects generally become stronger with time and this may lead to clustering behavior occurring even in the disperse flow regime.

The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. Th... more The phenomenon of electrostatic charge generation in a pneumatic conveying system was studied. The main parameters used for quantitative characterization of the phenomenon included induced current, particle charge density and equivalent current of the charged granular flow. These were measured using a Digital Electrometer, Faraday Cage and Modular Parametric Current Transformer (MPCT) respectively. Three different flow patterns corresponding to the different electrostatic effects within the pneumatic conveying system were observed and these were classified as the disperse flow, half-ring flow and ring flow patterns. It was found that the induced current, particle charge density and equivalent current increased with decreasing flow rates. Electrostatic effects generally become stronger with time and this may lead to clustering behavior occurring even in the disperse flow regime.

Asian Pacific Confederation of Chemical Engineering congress program and abstracts Asian Pacific Confederation of Chemical Engineers congress program and abstracts, 2004

The movement of spherical particles in a twin roller system for size classification has been stud... more The movement of spherical particles in a twin roller system for size classification has been studied experimentally. The diameter of the particles used is 600 µm. The classification system consists of a feeder, a twin roller unit and containers for collecting particles classified. The two rollers can be set at a desired angle from the horizon. The rollers can be rotated at an arbitrary angular velocity. All the particles that are fed from the feeder move along the gap between the two rollers. As the gap width increases downward, the particles fall down at a point where the gap width exceeds the particle diameter and are collected in containers arranged in a row. The motion of the particles moving along the gap is observed through a high-speed camera connected with a microscope. The image analysis shows that the particles roll down with small jumping, and the rotation of the particles depends on the operating condition of the twin roller system. The particle velocity along the gap varies according to the jumping. The flight time, normal velocity, and distance can be calculated from the velocity difference of the particles before and after the contact with the rollers.

Asian Pacific Confederation of Chemical Engineering congress program and abstracts Asian Pacific Confederation of Chemical Engineers congress program and abstracts, 2004

The movement of spherical particles in a twin roller system for size classification has been stud... more The movement of spherical particles in a twin roller system for size classification has been studied experimentally. The diameter of the particles used is 600 µm. The classification system consists of a feeder, a twin roller unit and containers for collecting particles classified. The two rollers can be set at a desired angle from the horizon. The rollers can be rotated at an arbitrary angular velocity. All the particles that are fed from the feeder move along the gap between the two rollers. As the gap width increases downward, the particles fall down at a point where the gap width exceeds the particle diameter and are collected in containers arranged in a row. The motion of the particles moving along the gap is observed through a high-speed camera connected with a microscope. The image analysis shows that the particles roll down with small jumping, and the rotation of the particles depends on the operating condition of the twin roller system. The particle velocity along the gap varies according to the jumping. The flight time, normal velocity, and distance can be calculated from the velocity difference of the particles before and after the contact with the rollers.

Funtai Kōgakkaishi, 1995