Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement

Yuki Sakamoto; Hiroaki Kobayashi; Yoshihiro Naruo; Yuichiro Takesaki; Yo Nakajima; Atsuhiro Furuichi; Hiroki Tsujimura; Koki Kabayama; Tetsuya Sato

doi:10.1016/j.ijhydene.2019.05.066

Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement

Yuki Sakamoto^*, Hiroaki Kobayashi, Yoshihiro Naruo, Yuichiro Takesaki, Yo Nakajima, Atsuhiro Furuichi, Hiroki Tsujimura, Koki Kabayama, Tetsuya Sato

^*Corresponding author for this work

School of Fundamental Science and Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

The void fraction and vapor quality are important parameters for characterizing the gas–liquid two-phase flow. However, neither an established void fraction measurement method nor a verified void fraction – vapor quality interconversion model is available for the two-phase hydrogen flow. The object of this study is the development of a void fraction measurement technique and the investigation of the void fraction–quality correlations. A capacitive void fraction sensor was developed using the electric field analysis (EFA) and design of experiment (DOE), and it was applied in a boiling hydrogen experimental facility. The experimental conditions were as follows: the inner diameter of the heating pipe was 15 mm, the mass flux was ranged from 50 to 110 kg/m²s, and the static pressure was ranged from 250 to 300 kPaA. Further, the correlation between the thermal equilibrium quality (χ_ac=− 0.03–0.14) and void fraction (α = 0–70%) was compared with that obtained in previously proposed models, and the void fraction – actual quality – thermal equilibrium quality interconversion models applicable to the boiling hydrogen flow were investigated. It was observed that the combination of the Sekoguchi model for thermal equilibrium quality – actual quality conversion and the Steiner drift-flux model for actual quality – void fraction conversion agreed well with the experimental results.

Original language	English
Pages (from-to)	18483-18495
Number of pages	13
Journal	International Journal of Hydrogen Energy
Volume	44
Issue number	33
DOIs	https://doi.org/10.1016/j.ijhydene.2019.05.066
Publication status	Published - 2019 Jul 5

Keywords

Boiling
Capacitive sensor
Hydrogen
Two-phase flow
Vapor quality
Void fraction

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2019.05.066

Cite this

Sakamoto, Y., Kobayashi, H., Naruo, Y., Takesaki, Y., Nakajima, Y., Furuichi, A., Tsujimura, H., Kabayama, K., & Sato, T. (2019). Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement. International Journal of Hydrogen Energy, 44(33), 18483-18495. https://doi.org/10.1016/j.ijhydene.2019.05.066

Sakamoto, Y, Kobayashi, H, Naruo, Y, Takesaki, Y, Nakajima, Y, Furuichi, A, Tsujimura, H, Kabayama, K & Sato, T 2019, 'Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement', International Journal of Hydrogen Energy, vol. 44, no. 33, pp. 18483-18495. https://doi.org/10.1016/j.ijhydene.2019.05.066

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title = "Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement",

abstract = "The void fraction and vapor quality are important parameters for characterizing the gas–liquid two-phase flow. However, neither an established void fraction measurement method nor a verified void fraction – vapor quality interconversion model is available for the two-phase hydrogen flow. The object of this study is the development of a void fraction measurement technique and the investigation of the void fraction–quality correlations. A capacitive void fraction sensor was developed using the electric field analysis (EFA) and design of experiment (DOE), and it was applied in a boiling hydrogen experimental facility. The experimental conditions were as follows: the inner diameter of the heating pipe was 15 mm, the mass flux was ranged from 50 to 110 kg/m2s, and the static pressure was ranged from 250 to 300 kPaA. Further, the correlation between the thermal equilibrium quality (χac=− 0.03–0.14) and void fraction (α = 0–70%) was compared with that obtained in previously proposed models, and the void fraction – actual quality – thermal equilibrium quality interconversion models applicable to the boiling hydrogen flow were investigated. It was observed that the combination of the Sekoguchi model for thermal equilibrium quality – actual quality conversion and the Steiner drift-flux model for actual quality – void fraction conversion agreed well with the experimental results.",

keywords = "Boiling, Capacitive sensor, Hydrogen, Two-phase flow, Vapor quality, Void fraction",

author = "Yuki Sakamoto and Hiroaki Kobayashi and Yoshihiro Naruo and Yuichiro Takesaki and Yo Nakajima and Atsuhiro Furuichi and Hiroki Tsujimura and Koki Kabayama and Tetsuya Sato",

note = "Funding Information: This work was supported by JSPS Grant-in-Aid for JSPS Research Fellow Number 17J01920, JSPS KAKENHI Grant Number 17H03479, and Waseda University Early Bird program. The authors would like to thank Dr. K. Ohira of Institute of Slush Hydrogen and Mr. K. Takahashi of Tohoku University for advising conducting the experiment. Also, technical assistance was received from JECC TORISHA Co. Ltd. to construct the experimental apparatus. Funding Information: This work was supported by JSPS Grant-in-Aid for JSPS Research Fellow Number 17J01920 , JSPS KAKENHI Grant Number 17H03479 , and Waseda University Early Bird program. The authors would like to thank Dr. K. Ohira of Institute of Slush Hydrogen and Mr. K. Takahashi of Tohoku University for advising conducting the experiment. Also, technical assistance was received from JECC TORISHA Co., Ltd. to construct the experimental apparatus. Publisher Copyright: {\textcopyright} 2019 Hydrogen Energy Publications LLC Copyright: Copyright 2019 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.ijhydene.2019.05.066",

language = "English",

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T1 - Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement

AU - Sakamoto, Yuki

AU - Kobayashi, Hiroaki

AU - Naruo, Yoshihiro

AU - Takesaki, Yuichiro

AU - Nakajima, Yo

AU - Furuichi, Atsuhiro

AU - Tsujimura, Hiroki

AU - Kabayama, Koki

AU - Sato, Tetsuya

N1 - Funding Information: This work was supported by JSPS Grant-in-Aid for JSPS Research Fellow Number 17J01920, JSPS KAKENHI Grant Number 17H03479, and Waseda University Early Bird program. The authors would like to thank Dr. K. Ohira of Institute of Slush Hydrogen and Mr. K. Takahashi of Tohoku University for advising conducting the experiment. Also, technical assistance was received from JECC TORISHA Co. Ltd. to construct the experimental apparatus. Funding Information: This work was supported by JSPS Grant-in-Aid for JSPS Research Fellow Number 17J01920 , JSPS KAKENHI Grant Number 17H03479 , and Waseda University Early Bird program. The authors would like to thank Dr. K. Ohira of Institute of Slush Hydrogen and Mr. K. Takahashi of Tohoku University for advising conducting the experiment. Also, technical assistance was received from JECC TORISHA Co., Ltd. to construct the experimental apparatus. Publisher Copyright: © 2019 Hydrogen Energy Publications LLC Copyright: Copyright 2019 Elsevier B.V., All rights reserved.

PY - 2019/7/5

Y1 - 2019/7/5

N2 - The void fraction and vapor quality are important parameters for characterizing the gas–liquid two-phase flow. However, neither an established void fraction measurement method nor a verified void fraction – vapor quality interconversion model is available for the two-phase hydrogen flow. The object of this study is the development of a void fraction measurement technique and the investigation of the void fraction–quality correlations. A capacitive void fraction sensor was developed using the electric field analysis (EFA) and design of experiment (DOE), and it was applied in a boiling hydrogen experimental facility. The experimental conditions were as follows: the inner diameter of the heating pipe was 15 mm, the mass flux was ranged from 50 to 110 kg/m2s, and the static pressure was ranged from 250 to 300 kPaA. Further, the correlation between the thermal equilibrium quality (χac=− 0.03–0.14) and void fraction (α = 0–70%) was compared with that obtained in previously proposed models, and the void fraction – actual quality – thermal equilibrium quality interconversion models applicable to the boiling hydrogen flow were investigated. It was observed that the combination of the Sekoguchi model for thermal equilibrium quality – actual quality conversion and the Steiner drift-flux model for actual quality – void fraction conversion agreed well with the experimental results.

AB - The void fraction and vapor quality are important parameters for characterizing the gas–liquid two-phase flow. However, neither an established void fraction measurement method nor a verified void fraction – vapor quality interconversion model is available for the two-phase hydrogen flow. The object of this study is the development of a void fraction measurement technique and the investigation of the void fraction–quality correlations. A capacitive void fraction sensor was developed using the electric field analysis (EFA) and design of experiment (DOE), and it was applied in a boiling hydrogen experimental facility. The experimental conditions were as follows: the inner diameter of the heating pipe was 15 mm, the mass flux was ranged from 50 to 110 kg/m2s, and the static pressure was ranged from 250 to 300 kPaA. Further, the correlation between the thermal equilibrium quality (χac=− 0.03–0.14) and void fraction (α = 0–70%) was compared with that obtained in previously proposed models, and the void fraction – actual quality – thermal equilibrium quality interconversion models applicable to the boiling hydrogen flow were investigated. It was observed that the combination of the Sekoguchi model for thermal equilibrium quality – actual quality conversion and the Steiner drift-flux model for actual quality – void fraction conversion agreed well with the experimental results.

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KW - Capacitive sensor

KW - Hydrogen

KW - Two-phase flow

KW - Vapor quality

KW - Void fraction

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Investigation of the void fraction–quality correlations for two-phase hydrogen flow based on the capacitive void fraction measurement

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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