Generation of electrostatic charge in fuel handling systems

a literature survey
  • 52 Pages
  • 3.19 MB
  • 870 Downloads
  • English
by
Naval Research Laboratory , Washington, D.C
Electrostatics -- Bibliog
StatementJ.T. Leonard
SeriesNRL report -- 8484
ContributionsNaval Research Laboratory (U.S.). Combustion and Fuels Branch
The Physical Object
Paginationiii, 52 p. :
ID Numbers
Open LibraryOL14859574M

GENERATION OF ELECTROSTATIC CHARGE IN FUEL HANDLING SYSTEMS: A LITERATURE SURVEY INTRODUCTION A number of survey articles on electrostatic charge generation in fuel handling systems have appeared ( since Klinkenberg and Van der Minne published their monograph on the subject [6].Cited by: 6.

A review is presented on the status of research on the generation and dissipation of electrostatic charge by hydrocarbon liquids and fuels, with emphasis Generation of electrostatic charge in fuel handling systems book the period Both metallic and nonmetallic fuel handling systems are covered, including the special problems encountered in aircraft fuel tanks filled with polyurethane foam.

The review stresses recent advances and presents Cited by: 6. The generation of electrostatic charge as a result of the flow of potential" observed at steady-state with the quiescent system.

The identity of the charge carriers (i.e. electrons, ions, or both) and the the flammability (or detonability) of the fuel-oxidant mixtures ignited.

Details Generation of electrostatic charge in fuel handling systems FB2

Charge generation due to fuel flow During fuel delivery it has been estimated that litres is transferred in minutes. This corresponds to fuel flows of between 7 and 9 litres per second and moderate velocities in the pipe of around metres per second.

The electrostatic charge that is generated in fuel being pumped along pipes File Size: KB. Electrostatic Ignitions of Fires and Explosions, by Thomas H.

Pratt outlines basics of electrostatic charge separation and discharge. Concepts presented include breakdown currents (3, volts per millimeter).

Pratt also indicates that liquids prone to accumulate static are more prone to electrostatic charge separation when air or gas is entrained. Several methods have been investigated to oil-lubricated charge generation in oil-lubricated systems and prevent damage that can occur if the electrostatic discharge operates unchecked.

One method involves adding an antistatic additive (ASA) to the liquid, but it has been restricted to fuel applications. Electrostatic charge generation occurs in fluid systems as a result of friction between the fluid and system components.

The magnitude of charge generated by each component will depend on many interrelated factors, including environmental ones. It can occur during filtration of hydraulic and lubricating oils as well as diesel and gasoline fuels.

The accumulation of electrostatic charge, generating during flight on the outer surfaces of aircraft and inside aircraft piping systems, cannot be considered as an immediate danger for flight safety, but it has to be seriously prevented to avoid upset in flight communications and risks of explosion in fuel areas or during refueling operations.

Static Electricity in Fuel Handling Facilities. Expertise to reduce the hazards associated with firs from an electrostatic discharge is based both on research and years of experience within the petroleum industry. Sully Curran provides advice and cautions to be taken when transferring fuels.

R.R. Bonaldi, in High-Performance Apparel, Antistatic protection. Electrostatic charge is generally believed to be a surface phenomenon because it is generated after contact and separation of two materials.

Description Generation of electrostatic charge in fuel handling systems EPUB

The triboelectric charge is generated after the separation of two materials, which have been in contact and undergone an exchange of electrons or ions between the two. Electrostatic charge generation occurs in fluid systems as a result of friction between the fluid and system components.

The magnitude of charge depends on many interrelated factors, including the environment. Charges can occur during filtration of hydraulic and lubricating fluids as.

Figure 3: Power module handling 5. Humidity Humidity is an important factor for the generation of static charges. A humid environment generates lower static charges than a dry environment which generates high static charges.

But a too high humid environment is uncomfortable for human. Humidity between 40 and 60% is the best choice for an. During the course of the tests, the conductivity of both fuels was regularly monitored. The Fuel C was in the range 31–52 pS m −1 with the white spirit 6–15 pS m −1 indicating that both test fuels were in or near the optimum range for electrostatic charge generation.

Fuel. systems, grounding issues, transformers, and the analysis of power quality problems. baldwin also holds the rank of professor at the fAMU-fSU College of Engineering at florida State University, tallahassee, fl, and has conducted research at the Center for Advanced Power Systems since he is a registered Professional Engineer in.

The Electrostatic Charging HAZARD during Aircraft Fueling 1. Aviation fuels are good insulators and like all good insulators they become electrified by friction.

Just as a comb or a bar of glass develops an electrostatic charge when rubbed, so hydrocarbon fuels develop a similar charge within the body of the fuel when pumped through pipes or hoses. equilibrium conditions, additional charge separation will occur.

Download Generation of electrostatic charge in fuel handling systems FB2

Moreover, the position of the pipeline export will also affect the generation and accumulation of electrostatic charge when oil flows into the tanks or other containers. For example, on J in a petroleum chemical plant, a fire.

The accumulated electrostatic charge is capable of producing an incendiary spark. There is a spark gap. There is an ignitable vapor-air mixture in the spark gap.

Control of Ignition Hazards A. Reducing Static Generation Static charge voltage may be prevented from reaching the sparking potential by reducing the rate of static.

Electrostatic charge generation occurs in fluid systems as a result of friction between the fluid and system components. The magnitude of charge depends on many interrelated factors, including the. Electrostatic discharge (ESD) is the sudden flow of electricity between two electrically charged objects caused by contact, an electrical short, or dielectric breakdown.A buildup of static electricity can be caused by tribocharging or by electrostatic ESD occurs when differently-charged objects are brought close together or when the dielectric between them breaks down, often.

An electrostatic precipitator (ESP) is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

In contrast to wet scrubbers, which apply energy directly to the flowing fluid medium, an ESP applies energy only to the particulate matter being collected and. - Electrostatic phenomena that arise from the following circumstances of vehicle or fuel system operation: a.

Flowing fuel in the fuel delivery system b. Flowing fuel being dispensed to the vehicle while it it being fueled This recommended practice provides for materials, components and subsystems that can be robust to electrostatic charge.

Negative charges are more common to synthetic materials such as Styrofoam or plastic cups. The amount of electrostatic charge that can accumulate on any item is dependent on its capacity to store a charge. For example, the human body can store a charge equal to picofarads.

This correlates into a stored charge that can be as high as 25,V. An electrostatic generator, or electrostatic machine, is an electromechanical generator that produces static electricity, or electricity at high voltage and low continuous knowledge of static electricity dates back to the earliest civilizations, but for millennia it remained merely an interesting and mystifying phenomenon, without a theory to explain its behavior and often confused.

LCFS Guidance (Revised April ): Book-and-Claim Accounting for Low-CI Electricity; Draft Regulatory Guidance (April ): Methodology for Determining Electricity Consumption of Electric Forklifts; Regulatory Guidance (May ): Guidance on Exemption for Fuel Used in Interstate Locomotives. by percent after switching to fuel cellpowered material handling equipment.

uel cell electric F material handling equipment is replacing battery-powered forklifts. There is also the potential for fuel cells to power vehicles and equipment in ports, construction, agriculture, and mining operations. The extent to which materials, whether solid, liquid or vapour, can generate and retain a static charge depends on their electrical resistance.

If the resistance is high, a charge can be built up. It is also possible for a charge to build up on materials in a system with low resistance (e.g.

metals) that are electrically insulated from each other. system and its components. Discussions of generation, transmission, and utilization are complemented by environmental and energy resources topics as well as electromechanical conversion, power electronics, electric safety, renewable energy, and electricity blackouts.” More Detailed Description: In this class we will cover the following.

As shown, Escape Titanium; EPA-Est. MPG 23 City/31 Hwy/C L EcoBoost engine. Actual mileage will vary. The completely redesigned Escape. GUIDELINES FOR THE CONTROL OF STATIC ELECTRICITY IN INDUSTRY 4 ARCHIVE 1.

INTRODUCTION Static electricity is generated by the contact and separation of materials, and clearly this generation often cannot be prevented in the industrial setting. Dodge V6 & V8 Gas & Cummins turbo-diesel Pick-ups () Haynes Repair Manual (Does not include fleet models with the L diesel.

The electric force on a charge Q 1 under these conditions, due to a charge Q 2 at a distance r, is given by Coulomb’s law, The bold characters in the equation indicate the vector nature of the force, and the unit vector r̂ is a vector that has a size of one and that points from charge Q 2 to charge .The Stationary Power Working Group addresses regulations affecting the deployment of stationary fuel cell systems and the overarching power generation industry.

FCHEA also maintains the Hydrogen & Fuel Cell Safety Report, a website and electronic newsletter published every other month which highlights the latest developments for U.S.

and.Fuel Handling Systems. Safe management and control of fuel to any burner system. Gas fuel systems: Natural gas, LPG, bio-gas, waste gases.