Improved Emissions through Enzyme Fuel Treatment Technology

Huelin Dispatch, Cross Channel Ferry - Servicing the Channel Islands & Northern France

Huelin-Renouf ShippingLOA 90m
Width 13m
Built 2000
Gross Tonnage 3390t
Draught 4.6
Speed 9.3 (Average)
Flag Gibraltar
Engines MAK 6M25

Test Results for Huelin Dispatch

During the 88 day test period, the exhaust emissions of the Huelin Dispatch were recorded on a daily basis. Huelin Dispatch used Marine Gas Oil (MGO) fuel, measurements were logged from the onboard meters and emissions were measured using a Testo 340 combustion analyser.

A base line was established for 10 days using untreated MGO fuel. Advanced Marine Gas Oil was used on day 10. Initially no change was notable. After 37 days there was a notable increase in emissions on the deck of the vessel (as recorded by the Engineer, and recorded in the Engine Log Book) as well as an increase in the recorded emissions from the analyser. This continued for 12 days after which the CO PPM emissions dropped from a high of 166 (PPM) to 95 (PPM), a decrease in emissions of 42.7%. The decrease was maintained for the remainder of the trial.

It is clear to see that the there was noticeable decrease in emissions caused by the increase in combustion efficiency of the fuel when Advanced Marine Gas Oil was applied.

The decrease in emissions can be related to the conditioning of fuel, which clearly improves as the trial progressed. Before the trial, fuel samples showed high water content as well as a high microbial content. These are known to cause poor combustion and poor lubricity on engine parts.

As the trial progresses the fuel quality and emissions were noticeably linked and efficiency improvement noted. Improvement in efficiency was up to 7.3%.

42.7% Decrease in Specific CO (PPM)

Graph

Before Trial - 11/06/11

Before Trial - Microscopic view of fuel Fuel sample before trial

Fuel samples clearly show contamination. Under the microscope a high particle count of microbial growth which causes the poor combustion and filter blockages can be seen

After Trial - 01/11/11

After Trial - Microscopic view of fuel Fuel sample after trial

The images of the fuel samples after the enzyme treated Advanced Fuel has been introduced. The fuel sample is clear and bright and the fuel has been brought back into specification.

Richard Theobald, Engineer on the Huelin Dispatch, commented:

“A base line was established for 10 day using untreated MGO fuel. Advanced Marine Gas Oil was used on day 10.  Initially no change was notable”

“After 37 days there was a notable increase in emissions on the deck of the vessel, as well as an increase in the recorded emissions from the analyser. This continued for 12 days; after which the CO PPM emissions dropped from a high of 166 (PPM) to 95 (PPM), a decrease in emissions of 42.7%. The decrease was maintained for the remainder of the trial”

“It is clear to see that the there is noticeable decrease in emissions which is caused by the increase in combustion efficiency of the fuel when Advanced Marine Gas Oil is applied”

“The decrease in emissions can be related to the conditioning of fuel, which clearly improves as the trial progresses”

“As the trial progresses the fuel quality and emissions are noticeably linked and efficiency improvement is noted;  So far an improvement in efficiency has been seen of up to 7.3%”

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