Presentation is loading. Please wait.

Presentation is loading. Please wait.

Freeze of Nozzle/Receptacle during Hydrogen Fueling

Published byMadison Alice Henry Modified over 6 years ago

Similar presentations

Presentation on theme: "Freeze of Nozzle/Receptacle during Hydrogen Fueling"— Presentation transcript:

1 Freeze of Nozzle/Receptacle during Hydrogen Fueling
Wataru Hiraki1, Hiroyuki Mitsuishi1 1Japan Automobile Research Institute

2 Hydrogen station Compressor Pressure vessel Dispenser FCV Overpressure Pressure [MPa] Overheat Temperature [°C] Overfill 85 70 15 SOC 100% 87.5 -40 use Pre-cool Hydrogen station is possible about fast-fueling safely, using pre-cool

3 Issue of nozzle/receptacle freeze lock
Disconnection Freeze lock Ice forms during fueling which causes the nozzle and receptacle to freeze together. This phenomenon is not specific to a single nozzle/receptacle design.

4 Object Safety evaluation of the nozzle/receptacle freeze lock
Confirmation of a water amount to cause the freeze lock

5 Test condition & Experiment setup
Fueling gas: Hydrogen, 35 MPa Nozzle Receptacle Thermocouple T Gas Sensor Incubator N2 Nitrogen Gas temperature: -40°C Ambient temperature: 30°C Hydrogen Ambient humidity: 95 %RH Flow rate: 650 g/min Fueling time: 3 min Test interval: 10 min Nozzle: A, B(Two types) Water added : Nozzle, Receptacle Condition for the end of the test: Freeze lock occured or pass for 5 times

6 Experiment setup Receptacle Incubator Nozzle connected nozzle

7 Disconnect procedure Procedure for identification of freeze lock
(1) Slidable locking sleeve is released (2) Draw out the nozzle 　⇒ 　disconnect Receptacle Nozzle Chuck Sleeve Receptacle Nozzle Chuck Sleeve (1') Chuck goes up Receptacle Nozzle Chuck Sleeve (※Shape of the sleeve and inner chuck are estimated) Procedure for identification of freeze lock Check immediately after the fueling Action for the disconnection; Revolve → Release the locking mechanism → Draw out Identify as freeze lock if the nozzle is not disconnected in the above condition

8 Water Spraying Position
Nozzle Receptacle Chuck Sleeve Hydrogen Gas Line Pin Cover spray Nozzle Receptacle Fitting part Fitting part

9 Release the Locking mechanism
Freeze lock Nozzle Water added Results Freeze lock Revolve Release the Locking mechanism Darw out A Receptacle 2nd fueling possible impossible

10 Release the Locking mechanism
Freeze lock Nozzle Water added Results Freeze lock Revolve Release the Locking mechanism Darw out A Nozzle, Receptacle 1st fueling possible impossible

11 Release the Locking mechanism
Freeze lock Nozzle Water added Results Freeze lock Revolve Release the Locking mechanism Darw out B Receptacle 5th fueling possible impossible

12 Release the Locking mechanism
Freeze lock Nozzle Water added Results Freeze lock Revolve Release the Locking mechanism Darw out B 1st fueling possible impossible

13 Result Freeze lock is caused by water inside the nozzle.
Hydrogen does not leak from the nozzle/receptacle even if the nozzle/receptacle were freeze lock. Freeze lock does not cause any damage of the equipment.

14 Estimation of freezing part
Result Incidence Revolve Release the Locking mechanism Draw out possible impossible 14/16 (Nozzle A) 13/14 (Nozzle B) Clearance of sleeve Chuck part Fitting part Receptacle Nozzle Chuck Sleeve Estimated freezing part：Clearance of sleeve, Chuck part

15 Water injection method
Effect of a water amount on freeze lock Water injection method Micropipette Nozzle head Water is injected to the nozzle inside before fueling. Connect to receptacle and flow -40°C gas Freeze lock?

16 Test condition & Experiment setup
Nozzle Receptacle Thermocouple T Gas Sensor Incubator N2 Nitrogen Fueling gas: Hydrogen, 35 MPa Gas temperature: -40°C Ambient temperature: 30°C Hydrogen Ambient humidity: 60 %RH Flow rate: 650 g/min Fueling time: 3 min Nozzle: A Water added : injection the Nozzle

17 Release the loking mechanism
Result of Quantification Water injection [μL] Results Revolve Release the loking mechanism Draw out 500 possible 750 1000 impossible After fueling Freeze lock

18 Conclusions ・ The nozzle and the receptacle are safely, even if the freeze lock occurred ・ The freeze lock is caused by the water freezing in the locking mechanism of the nozzle ・ The freeze lock occurred after fueling when water of 1000 μL over 750 μL injected to the nozzle A

19 Next step Experiment of the freeze lock
Investigation of the freeze lock with other nozzles. Investigation of ambient condition when the freeze lock occurs. Investigation of a technique that protect the freeze lock. Proposition of the freeze lock testing condition and procedure

20 Thank you for your attention
ACKNOWLEDGEMENTS This study is a summary of the “Hydrogen Using Technology Research and Development Project”, and the "Hydrogen production, transportation and storage system technology development" under consignment by the New Energy and Industrial Technology Development Organization (NEDO). Thank you for your attention

Download ppt "Freeze of Nozzle/Receptacle during Hydrogen Fueling"

Similar presentations

1. Glenpool South Tank Farm Glenpool, Oklahoma April 7, 2003 Storage Tank Explosion and Fire ConocoPhillips.

1. Glenpool South Tank Farm Glenpool, Oklahoma April 7, 2003 Storage Tank Explosion and Fire ConocoPhillips.
AN-NAJAH NATIONAL UNIVERSITY FACULTY OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING Prepared by: Wajdi abu-muhsen Khaled aamer Ahmad Al-Hunate Nabeel.

AN-NAJAH NATIONAL UNIVERSITY FACULTY OF ENGINEERING DEPARTMENT OF MECHANICAL ENGINEERING Prepared by: Wajdi abu-muhsen Khaled aamer Ahmad Al-Hunate Nabeel.
4-1 Chapter 4 Overview b The DCM is very complex Mechanical, electrical, hydraulic and safety systems all work together Mechanical, electrical, hydraulic.

4-1 Chapter 4 Overview b The DCM is very complex Mechanical, electrical, hydraulic and safety systems all work together Mechanical, electrical, hydraulic.
Research Activities of HFCV in Korea Speaker : Economy : The Republic of Korea.

Research Activities of HFCV in Korea Speaker : Economy : The Republic of Korea.
1 Cooling the Hydrogen (Helium) Absorbers with Small Coolers Michael A. Green University of Oxford Department of Physics Oxford OX1 3RH, UK MICE Video.

1 Cooling the Hydrogen (Helium) Absorbers with Small Coolers Michael A. Green University of Oxford Department of Physics Oxford OX1 3RH, UK MICE Video.
Proposal of Fire Resistance Test

Proposal of Fire Resistance Test
7 Portable Fire Extinguishers Captain Walker. 2 Objectives (1 of 2) State the primary purposes of fire extinguishers. Define Class A fires. Define Class.

7 Portable Fire Extinguishers Captain Walker. 2 Objectives (1 of 2) State the primary purposes of fire extinguishers. Define Class A fires. Define Class.
Water in Earth’s Atmosphere. Phase changes To evaporate, water must absorb energy. This energy goes into changing the liquid particles that are close.

Water in Earth’s Atmosphere. Phase changes To evaporate, water must absorb energy. This energy goes into changing the liquid particles that are close.
0 Copyright; 2007 IAE. All rights reserved. 2nd ICHS 11-13/9/2007 Spain Study of Hydrogen Diffusion and Deflagration in a Closed System Yuki Ishimoto 1,

0 Copyright; 2007 IAE. All rights reserved. 2nd ICHS 11-13/9/2007 Spain Study of Hydrogen Diffusion and Deflagration in a Closed System Yuki Ishimoto 1,
Flammable and Combustible Liquids. Flammable liquids Class I - liquids have flashpoints below 100 degrees F, with vapor pressures not exceeding 40 psia.

Flammable and Combustible Liquids. Flammable liquids Class I - liquids have flashpoints below 100 degrees F, with vapor pressures not exceeding 40 psia.
Research Activities of HFCV Rule-making in Korea Sept. 24 ~ 26, 2008 4 th HFCV-SGS Meeting Ministry of Land, Transport and Maritime Affairs, Korea Transportation.

Research Activities of HFCV Rule-making in Korea Sept. 24 ~ 26, th HFCV-SGS Meeting Ministry of Land, Transport and Maritime Affairs, Korea Transportation.
Research Activities of HFCV in Korea May 26 ~ 29, 2009 6 th HFCV-SGS Meeting Ministry of Land, Transport and Maritime Affairs, Korea Transportation Safety.

Research Activities of HFCV in Korea May 26 ~ 29, th HFCV-SGS Meeting Ministry of Land, Transport and Maritime Affairs, Korea Transportation Safety.
Phase Changes  Objectives:  SWBAT describe phase changes of water  Catalyst:  Describe the law of conservation of matter in your own words.  Kevin.

Phase Changes  Objectives:  SWBAT describe phase changes of water  Catalyst:  Describe the law of conservation of matter in your own words.  Kevin.
Hydrogen risk assessment in São Paulo State – Brazil Newton Pimenta Sandro Tomaz Giuseppe Michelino 4 th International Conference on Hydrogen Safety ICHS.

Hydrogen risk assessment in São Paulo State – Brazil Newton Pimenta Sandro Tomaz Giuseppe Michelino 4 th International Conference on Hydrogen Safety ICHS.
The Spread of Fire from Adjoining Vehicles to a Hydrogen Fuel Cell Vehicle Japan Automobile Research Institute Yohsuke Tamura, Masaru Takabayashi, Masayuki.

The Spread of Fire from Adjoining Vehicles to a Hydrogen Fuel Cell Vehicle Japan Automobile Research Institute Yohsuke Tamura, Masaru Takabayashi, Masayuki.
Evaluating the Energy from Fuels Draw a suitable, labelled graph of the results. Describe what the results and graph show Most- Explain what was found.

Evaluating the Energy from Fuels Draw a suitable, labelled graph of the results. Describe what the results and graph show Most- Explain what was found.
DEVELOPING FIRE TESTS FOR FCV AND HYDROGEN VEHICLES Glenn Scheffler Consultant for the US Department of Energy August 2010 DEVELOPING FIRE TESTS FOR FCV.

DEVELOPING FIRE TESTS FOR FCV AND HYDROGEN VEHICLES Glenn Scheffler Consultant for the US Department of Energy August 2010 DEVELOPING FIRE TESTS FOR FCV.
Table of Contents  General Description  Concept of RX Vessel and Location of Defect  Radiation Dose Control  Repair Schedule of Bottom Header Defected.

Table of Contents  General Description  Concept of RX Vessel and Location of Defect  Radiation Dose Control  Repair Schedule of Bottom Header Defected.
1 September 13, 2007 Engineering Advancement Association (ENAA) of Japan Sam Miyashita Hydrogen Safety R&D and RCS process in Japan.

1 September 13, 2007 Engineering Advancement Association (ENAA) of Japan Sam Miyashita Hydrogen Safety R&D and RCS process in Japan.
International Conference on Hydrogen Safety 2011 – San Francisco, 12 Sept 2011 Risk informed separation distances for hydrogen refuelling stations Frederic.

International Conference on Hydrogen Safety 2011 – San Francisco, 12 Sept 2011 Risk informed separation distances for hydrogen refuelling stations Frederic.

Similar presentations

Ads by Google