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THE RISK OF FIRES AND EXPLOSIONS DURING THE TRANSPORT, STORAGE AND DISTRIBUTION OF DIESEL FUEL
Abstract
Many operations with flammable liquids produce flammable atmospheres by evaporation of the liquid being handled. In some circumstances, the flammable atmosphere is not due to the liquid being handled but due to residues of volatile liquid or vapor from earlier operations with the same equipment as is often the case with diesel fuel handling. This paper highlights some aspects regarding the danger of fires and explosions in the transport, storage and distribution of diesel fuel starting from the investigation of the causes that led to the occurrence of repeated events at a fuel loading ramp during loading of road tanks with diesel - ignition of flammable atmosphere by electrostatic discharge. Use of new types of fuels, ULSD (Ultra Low Sulfur Diesel), as a result of the implementation of environmental legislation, has increased the risk of explosion, because these types of diesel are easily charged with static electricity. Factors that need to be considered to reduce the risk of ignition sunt flammability characteristics of explosive atmosphere (the vapor pressure, flash point, temperature, and pressure) and the factors that determine the charging of static electricity (fuel type, electrical conductivity, sulfur content, viscosity, vehicle process: flow rate, pipe diameter, filters, pumps, spark promoters).
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References5
- EC Directive, Directive 1999/92/EC on minimum requirements for improving the safety and health protection of workers potentially at risk from explosive atmospheres, Non-binding Guide of Good Practice for implementing of the Directive, (1999)
- Unloading petrol from road tankers. Dangerous Substances and Explosive Atmospheres Regulations, Approved Code of Practice and guidance, (2002) www.hse.gov.uk/pubns/books/l133.htm.,
- CSB - Case Study, U.S. Chemical Safety and Hazard Investigation Board Barton Solvents Static Spark Ignites Explosion Inside Flammable Liquid Storage Tank, No. 2007-06-I-KS, (2007)
- API RECOMMENDED PRACTICE, Protection Against Ignitions Arising Out of Static, Lightning, and Stray Currents, (2003)
- Canadian Fuels Association, Professional Petroleum Driver’s Manual, (February 2017)
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