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Pre-normative research on resistance to mechanical impact of composite overwrapped pressure vessels
A European Project supported through the Seventh Framework Programme for the Fuel Cells and Hydrogen Joint Technology Initiative.
Hydrogen is expected to be highly va-luable energy carrier for the 21st centu-ry, answering main societal and econo-mical concerns.
Demonstrating and maximising its safety in use will contribute to promote its so-cial acceptance and thus its extensive use as an energy vector.
Considering the feedback gathered on cylinders currently in service (mostly me-tallic), resistance to mechanical impact is of main concern.
The HyPactor project, supported by FCH JTI, aims at strengthening the knowledge on influence of mechanical impact with respect to full composite (type-IV) high pressure cylinders integrity.
WP2: Study of damages due to impactsLeader: CEAParticipants:AL, HEX, NTNU, WRUT, ISA
WP3: Residual performance assessment of impacted tanksLeader: WRUTParticipants: CEA, NTNU, HEX, AL, ISA
WP4: Inspection MethodsLeader: ALParticipants: ISA, HEX, WRUT, NTNU, CEA
WP1: Project managementLeader : CEAParticipant : ALMA
WP5: Dissemination and RCS recommendationsLeader: HEXParticipants: CEA, AL; ISA, WRUT, NTNU, ALMA
TODAY’SCHALLENGES
HYPACTOR PROJECT STRUCTURE
The main objective is to provide recommendations for Regu-lation Codes and Standards (RCS) regarding the qualification of new designs of Composite Overwrapped Pressure Vessels (COPV) and the procedures for periodic inspection in service of COPV subjected to mechanical impacts.
To that aim HyPactor is going to:• Understand and characterise the relationship between the
impact, the damage and the loss of performance of COPV at short term and after further pressure loads in service;
• Develop models to predict at least short term residual perfor-mance of the impacted COPV;
• Assess and develop relevant (non-destructive) inspection procedures and define pass-fail criteria for COPV in service subjected to mechanical impacts.
The project focuses on applications like stationary buffers but also transportable cylinders, bundles and tube trailers.
Composite vessel behaviour model
Mechanicals impacts and
damages consequences
Residual performance
Alternative non-destructive examination methods and definition of pass-fail criteri
Test on small cylinders with
different thicknesses
Validation on larger cylinder with various pressures
Literature and experimental
data
• Extensive experimental database• Improved modelling
for prediction• Recommendations
for RCS
ENHANCED CHARACTERISATION OF DAMAGE GENERATED BY IMPACT. ASSESSMENT OF RESPECTIVE RESIDUAL PERFORMANCES
Expected outcomes of the project are primarily:
PERSPECTIVES OF HYPACTOR PROJECT
• Extensive experimental database with damage description correlated to variety of impact conditions chosen for their severity or probability to happen in service
• Improved modelling for prediction of residual performance of impacted COPV• Recommendations for the Regulation Codes and Standards for optimised strategies of safe management
of vessels subjected to mechanical impacts.
The HyPactor project brings together partners with complementary expertise: experts in testing processes for compressed gaseous hydrogen (CGH2) storage in full composite vessels (CEA, WRUT), a gas company operating CGH2 technologies (AIR LIQUIDE), a pressure vessel supplier (HEXAGON), experts in characterisation, particularly non-destructive testing (ISA, WRUT, CEA) and experts in modelling (NTNU), leading actors in international RCS development (HEXAGON, AIR LIQUIDE, IS, CEA), and an expert in European R&D collaborative project management (ALMA CG).
HyPactor COORDINATOR
CEAFabien NONY+33 2 47 34 49 [email protected]
WITH THE SUPPORT OF
ALMA CGRichard VAUX+33 4 72 35 80 [email protected]
CONSORTIUM
ACKNOWLEDGEMENT
Supported by the European Union’s Seventh Framework Programme (FP7 / 2007-2013) for the Fuel Cells and Hydrogen Joint Technology Initiative under grant agreement n° 621194 with up to 2.14 M€ out of a total budget of 4.05 M€.
www.hypactor.eu