< Prev Next >

3.1.6 Protection from flammable gas appliance hazards

The gas appliance directive requires the possibility of unburned gas release to be considered.

GUIDE

1 Introduction and Scope
2 Introduction to fuel cell systems and their associated hazards
- 2.1 Fuel cell systems
  - 2.1.1 Types of fuel cell
  - 2.1.2 Components of a fuel cell system
- 2.2 Hazards associated with fuel cell installation and operation
  - 2.2.1 Hazards of fuels other than hydrogen
  - 2.2.2 Fire and explosion hazards
- 2.3 Properties and characteristics of hydrogen
3 General and higher level requirements
- 3.0 Introduction
- 3.1 Design and manufacturing requirements
- 3.2 Installation requirements
- 3.3 Regulatory approval considerations
- 3.4 Operational/maintenance considerations
4 System-specific and siting considerations
- 4.0 Introduction
- 4.1 Hydrogen generation
  - 4.1.1 Generation options
  - 4.1.2 Standards and guidance
- 4.2 Hydrogen containment and piping
- 4.3 Siting
- 4.4 Explosion prevention and protection
- 4.5 Hydrogen sensing
- 4.6 Fire precautions
- 4.7 Interconnectivity
5 Permitting Route
- 5.0 Introduction
- 5.1 Outline approval checklist for commercial/industrial installations
- 5.2 Outline approval checklist for domestic/residential installations
Appendix
- Appendix A1: Table of Regulations related to domestic natural gas systems
- Appendix A2: Useful regulations, codes and standards
- Appendix A3: Case Studies
- Appendix A4: CE certification
- Appendix A5: Experimental Results Summary
- Appendix A6: Modelling results summary
- Appendix A7: Detection techniques: commercially available technologies for hydrogen detection
- Appendix A8: Suggested Risk Assessment Methodology
- Appendix A9: Abbreviations
- Appendix A10: References