Browsing by Author "Hirata, Daisuke"
Now showing items 1-7 of 7
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Pash, Nathan; Hayles, George C.; Hirata, Daisuke; Kiuchi, Daisuke (Texas A&M University. Turbomachinery Laboratories, 2012)This paper presents a detailed analysis and evaluation of impeller efficiency and overall compressor performance as they relate to specific impeller manufacturing methods, manufacturing tolerances, and quality control. The ...
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Hirata, Daisuke; Nekomoto, Yoshitsugu; Ibrahim, Fady; Nakaniwa, Akihiro; van Beek, Pieter; Frediani, Luca (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station; Texas A & M University. Libraries; Texas A & M University. Libraries, 2021)In a centrifugal compressor, interactions between impeller blades and stationary parts such as diffuser vanes will generate high frequency pressure pulsations. The frequencies of these pulsations, so called “blade passing ...
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Hirata, Daisuke; Nakaniwa, Akihiro; Nekomoto, Yoshitsugu; van Beek, Pieter; Ibrahim, Fady; Frediani, Luca (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2022)In a centrifugal compressor, interactions between impeller blades and stationary parts such as diffuser vanes will generate high frequency pressure pulsations. The frequencies of these pulsations, so called “blade passing ...
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Oda, Takashi; Hirata, Daisuke; Mohit, Goenka; Mathew, Ajay; Tasaki, Akinori (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)Suction side Journal bearing temperature increased to around 130 degC from 60 degC instantaneously. Further the temperature was decreased to 80 degC accompanied by increase in rotor vibration.(from 5 to 15 ?m p-p) •Bearing ...
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Schirle, Hans; Hirata, Daisuke; Pash, Nathan; Hayles, George C. (Texas A&M University. Turbomachinery Laboratories, 2012)
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Hirata, Daisuke; Nagai, Naoyuki; Higashimori, Hirotaka; Shoji, Yoshiaki (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2018)Subsynchronous shaft vibration was observed in an integrally geared expander-compressor when the machine was operated with a partial load in the course of plant start up. The root cause of the synchronous shaft vibration ...
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Nagai, Naoyuki; Higashimori, Hirotaka; Hirata, Daisuke (Turbomachinery Laboratory, Texas A&M Engineering Experiment Station, 2017)