Unsteady wet-steam flows through low pressure turbine final three stages considering blade number

Satoshi Miyake; Hironori Miyazawa; Satoru Yamamoto; Yasuhiro Sasao; Kazuhiro Momma; Hiroharu Ooyama; Toshihiro Miyawaki

doi:10.1115/GT2015-42366

Unsteady wet-steam flows through low pressure turbine final three stages considering blade number

Satoshi Miyake, Hironori Miyazawa, Satoru Yamamoto, Yasuhiro Sasao, Kazuhiro Momma, Hiroharu Ooyama, Toshihiro Miyawaki

INF - Computer and Mathematical Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

12 Citations (Scopus)

Abstract

Unsteady three-dimensional wet-steam flows through stator-rotor blade rows in the final three stages of a lowpressure steam turbine, taking the blade number into consideration, are numerically investigated. In ASME Turbo Expo 2014, we presented the numerical results of the unsteady flow assuming the same blade number. Here, this previous study is extended to flow simulations using the real blade number. The flows under three flow conditions, with and without condensation and considering the same and real blade numbers are simulated, and the numerical results are compared with each other and with the experimental results. Finally, the effect of the blade number on unsteady wet-steam flows in real low-pressure steam turbines is discussed.

Original language	English
Title of host publication	Microturbines, Turbochargers and Small Turbomachines; Steam Turbines
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791856796
DOIs	https://doi.org/10.1115/GT2015-42366
Publication status	Published - 2015
Event	ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015 - Montreal, Canada Duration: 2015 Jun 15 → 2015 Jun 19

Publication series

Name	Proceedings of the ASME Turbo Expo
Volume	8

Other

Other	ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015
Country/Territory	Canada
City	Montreal
Period	15/6/15 → 15/6/19

ASJC Scopus subject areas

Engineering(all)

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10.1115/GT2015-42366

Cite this

Miyake, S., Miyazawa, H., Yamamoto, S., Sasao, Y., Momma, K., Ooyama, H., & Miyawaki, T. (2015). Unsteady wet-steam flows through low pressure turbine final three stages considering blade number. In Microturbines, Turbochargers and Small Turbomachines; Steam Turbines (Proceedings of the ASME Turbo Expo; Vol. 8). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/GT2015-42366

Unsteady wet-steam flows through low pressure turbine final three stages considering blade number. / Miyake, Satoshi; Miyazawa, Hironori ; Yamamoto, Satoru et al.

Microturbines, Turbochargers and Small Turbomachines; Steam Turbines. American Society of Mechanical Engineers (ASME), 2015. (Proceedings of the ASME Turbo Expo; Vol. 8).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Miyake, S, Miyazawa, H , Yamamoto, S, Sasao, Y, Momma, K, Ooyama, H & Miyawaki, T 2015, Unsteady wet-steam flows through low pressure turbine final three stages considering blade number. in Microturbines, Turbochargers and Small Turbomachines; Steam Turbines. Proceedings of the ASME Turbo Expo, vol. 8, American Society of Mechanical Engineers (ASME), ASME Turbo Expo 2015: Turbine Technical Conference and Exposition, GT 2015, Montreal, Canada, 15/6/15. https://doi.org/10.1115/GT2015-42366

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abstract = "Unsteady three-dimensional wet-steam flows through stator-rotor blade rows in the final three stages of a lowpressure steam turbine, taking the blade number into consideration, are numerically investigated. In ASME Turbo Expo 2014, we presented the numerical results of the unsteady flow assuming the same blade number. Here, this previous study is extended to flow simulations using the real blade number. The flows under three flow conditions, with and without condensation and considering the same and real blade numbers are simulated, and the numerical results are compared with each other and with the experimental results. Finally, the effect of the blade number on unsteady wet-steam flows in real low-pressure steam turbines is discussed.",

author = "Satoshi Miyake and Hironori Miyazawa and Satoru Yamamoto and Yasuhiro Sasao and Kazuhiro Momma and Hiroharu Ooyama and Toshihiro Miyawaki",

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AU - Miyake, Satoshi

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AU - Momma, Kazuhiro

AU - Ooyama, Hiroharu

AU - Miyawaki, Toshihiro

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N2 - Unsteady three-dimensional wet-steam flows through stator-rotor blade rows in the final three stages of a lowpressure steam turbine, taking the blade number into consideration, are numerically investigated. In ASME Turbo Expo 2014, we presented the numerical results of the unsteady flow assuming the same blade number. Here, this previous study is extended to flow simulations using the real blade number. The flows under three flow conditions, with and without condensation and considering the same and real blade numbers are simulated, and the numerical results are compared with each other and with the experimental results. Finally, the effect of the blade number on unsteady wet-steam flows in real low-pressure steam turbines is discussed.

AB - Unsteady three-dimensional wet-steam flows through stator-rotor blade rows in the final three stages of a lowpressure steam turbine, taking the blade number into consideration, are numerically investigated. In ASME Turbo Expo 2014, we presented the numerical results of the unsteady flow assuming the same blade number. Here, this previous study is extended to flow simulations using the real blade number. The flows under three flow conditions, with and without condensation and considering the same and real blade numbers are simulated, and the numerical results are compared with each other and with the experimental results. Finally, the effect of the blade number on unsteady wet-steam flows in real low-pressure steam turbines is discussed.

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Unsteady wet-steam flows through low pressure turbine final three stages considering blade number

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