Fuel Contaminates

Contaminates in your fuel can cause back up power systems to fail. Which is often only discovered when the back up power supply is needed, thus having catastrophic results.

Effects of Contaminations

Injector Damage small

Any contamination in fuel leads to damaged injectors and other precision components, in addition to reduced engine efficiency.

Failures, injector damage and engine wear (as shown in the pictures) cause further engine damage, resulting in less power, the engine will still run, but will have a shorter shelf life and run very uneconomically.

 

How do contaminations occur?

fuel layers smallContaminations occur for various reasons and contaminates include water, bacteria and sludge.

Water can form in any fuel tank, typically from condensation, poor venting or water ingress (especially common in marine vessels).  Water, while a contamination itself, is the main cause of formation of all other forms of contaminations.

 

Types of contaminations

Water

emulsified water 2The problem with water is that it accelerates the formation of acids in the fuel, which in turn will degrade any seals or gaskets. Moreover it will destroy the fuel injectors if allowed to reach the engine, which renders the engine useless, and is typically highly expensive to repair.

Water can be “emulsified” or “free water”.

 

  

 

 

Bacterial / Fungal Infection

bug1 smallBacterial infection is a major issue in fuel systems. There are hundreds of various bacterial infections, the two most common being “Cladosporium Resinae” (clad) and “Pseudomonas aeruginosa”.

These yeast and fungal infections cannot germinate in the fuel itself, but require the right temperature (10-40 degrees centigrade) a food source (the fuel’s hydrocarbons) and water to live (as above). Bacterial infection most often looks like black or dark brown ‘waxy sludge’. This is often found in fuel tanks, pipes and filters. The by-product waste will then cause damage to the tanks and pipe work as well as stopping the generator by blocking the fuel flow.

 

Sediment

Fuel degrades over time, and after 6 to 12 months is considered to be out of specification, as per BP Long term Storage of Fuel Document and CONCAWE Report. It can still be burnt, but as it degrades, it forms sediment and gums within the fuel – these rapidly block filters and can starve the engine of fuel.

 

Biodiesel

Bio-fuel is hygroscopic and attracts water, which can become free or emulsified. Water is the cause of all microbial growth, which can lead to waxing, sludge, bacterial infections, sediments and other foreign matter.

blocked and clean injector exampleMicrobial contaminations can then lead to corrosion of pipe work, fuel blockages, damage to tanks and engine’s injectors. Furthermore the lack of lubricant in biodiesel decreases the engine’s efficiency. The engine works harder, thus raising the temperature, causing component wear, wasting electricity and fuel and potentially leading to back-up generator failure in an emergency situation.

 

The long-term solution

fuel samplesThe WASP PFS Ltd Fuel Polishing systems effectively removes and contains all forms of contaminations to resolve the immediate issue while protecting your fuel long-term by removing the bacterial content and neutralising any residual micro-fine particles so the infection simply cannot return.

Each component on the WASP PFS System works to contain different contaminates. 

 


 

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Expert advice

Unsure which spare parts you require? Or if a Separ filter will meet your requirements? 

Talk to our expert team. Call 01923 276 007

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