Title:
METHOD FOR EVALUATING HYDROGEN GAS DISPENSER
Document Type and Number:
Japanese Patent JP2017181215
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an evaluation method which can accurately evaluate the accuracy of the measured value of a gas flow rate obtained by a built-in gas flowmeter of a hydrogen gas dispenser, over a wide range (wide pressure range and a wide flow rate range).SOLUTION: The method for evaluating a hydrogen gas dispenser according to the present invention includes the steps of: connecting an evaluation gas flowmeter and a hydrogen gas dispenser with a built-in gas flowmeter to each other; introducing a hydrogen gas and measuring the flow rate of the hydrogen gas by the gas flowmeter and the evaluation gas flowmeter; and determining whether the built-in gas flowmeter is functioning appropriately based on the difference between the measured value of the gas flow rate of the built-in gas flowmeter (MV) and the measured value of the gas flow rate of the evaluation gas flowmeter (SV). The evaluation gas flowmeter is corrected and is priced using the hydrogen gas based on a standard gas flowmeter having at least two critical flow nozzles with different throat diameters and on-off valves corresponding to the critical flow nozzles.SELECTED DRAWING: Figure 15
Inventors:
MORIOKA TOSHIHIRO
ITO MASARU
FUJIKAWA SEIICHI
INOUE GOICHI
ITO MASARU
FUJIKAWA SEIICHI
INOUE GOICHI
Application Number:
JP2016066866A
Publication Date:
October 05, 2017
Filing Date:
March 29, 2016
Export Citation:
Assignee:
IWATANI INT CORP
AIST
AIST
International Classes:
G01F25/00; G01F1/42; G01F1/84
Domestic Patent References:
| JP2011515660A | 2011-05-19 | |||
| JPH05142017A | 1993-06-08 | |||
| JP2007192682A | 2007-08-02 | |||
| JPS59151121U | 1984-10-09 | |||
| JPS6320027U | 1988-02-09 | |||
| JP2005233437A | 2005-09-02 |
Foreign References:
| CN103759793A | 2014-04-30 |
Other References:
森岡敏博、伊藤優、藤川静一、石橋雅裕、中尾晨一: "高圧水素大容量の実流校正設備の構築とその評価", 日本機械学会論文集Ｂ編, vol. 79巻, 800号, JPN6019023010, 25 April 2013 (2013-04-25), JP, pages 533 - 540, ISSN: 0004288068
森岡敏博、中尾晨一、石橋雅裕: "高圧水素ガス計測用臨界ノズル式流量計の特性評価", 日本機械学会論文集（B編）, vol. 77巻, 776号, JPN6019048671, 25 April 2011 (2011-04-25), JP, pages 1088 - 1097, ISSN: 0004288067
浅野裕、中尾晨一、八鍬武史: "低レイノルズ数における臨界ノズルの形状に関する研究", 日本機械学会論文集（B編）, vol. 77巻, 779号, JPN6019048674, 25 July 2011 (2011-07-25), JP, pages 1550 - 1556, ISSN: 0004173407
森岡敏博、中尾晨一、石橋雅裕: "高圧水素ガス計測用臨界ノズル式流量計の特性評価", 日本機械学会論文集（B編）, vol. 77巻, 776号, JPN6019048671, 25 April 2011 (2011-04-25), JP, pages 1088 - 1097, ISSN: 0004288067
浅野裕、中尾晨一、八鍬武史: "低レイノルズ数における臨界ノズルの形状に関する研究", 日本機械学会論文集（B編）, vol. 77巻, 779号, JPN6019048674, 25 July 2011 (2011-07-25), JP, pages 1550 - 1556, ISSN: 0004173407
Attorney, Agent or Firm:
Makoto International Patent Office