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The Singapore
Naval Maintenance Base
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Also undertook a trial
on three vessels involving the monitoring of fuel consumption (usage
per hour). Two vessels which were known to have higher than normal
fuel consumption recorded savings of 20% and the third a saving of
15%.
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Shell
Deepwater Production Inc. U.S. |
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Four gas
turbines used for power generation on an oil rig. These turbines burn
5 gallons per minute per engine when loaded. When a De-Bug Unit was
fitted: "... filter usage cost has dropped from $8,000 per year to
less than $1,000 per year. We satisfied with the appearance of the
fuel we have has no unscheduled engine shutdowns due to clogged
filters. The De-Bug Unit has performed as well as we were told it
would ..."
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Western Mining Corporation Ltd: |
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"In addition to these savings we are now using around 8% less fuel.
TMs is partly from better engine economy and partly from reduced
fuel wastage due to bacterial contamination levels"
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Deep
Submergence |
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Rescue Vehicle Support Ship (DSESS)
Kellie Chouest, leased to the US Navy for research, rescue
and retrieval, suffered severe algae contamination and the fuel
filters required replacement every few hours. Installation of De-Bug
units in the fuel supply lines solved the problem and allowed filter
replacement to be undertaken at the normal servicing intervals.
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Union Rotorua |
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A
merchant vessel operated by Union Shipping of New Zealand,
was supplied with over 1000 Tonnes of light marine diesel bunker oil
which was subsequently found to be contaminated with
Hormonicus
Resinae. The bacteria caused severe problems by fouling fuel filters;
filter life was reduced from 6-8 weeks to 17 hours.
On fitting two De-Bug L4000 units, the fuel filter life was extended
such that frequent and expensive filter changes were no longer
required. The two units successfully coped with fuel flow rates of 78
tonnes of fuel every 24 hours. While cleaning of the infected bunkers
was still required, the fitting of the De-Bug units allowed this to be
scheduled for a convenient time, allowing the vessel to continue a
normal trading pattern and generating revenue for it owners. No
further problems were reported during the last five years of service
that were completed in 1998.
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Ship
Control Services |
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A
merchant vessel operated by Ship Control Services (PTE) Ltd. of
Singapore, had engine exhaust temperatures above the maximum
recommended levels.
An L4000 De-Bug unit was fitted which resulted in a reduction of
the engine exhaust temperature to within limits. In addition, daily
fuel oil consumption (for the same shaft revolutions) was reduced from
17.4 metric tonnes to 15.5 metric tonnes.
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Ray
Piper: |
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From the first trip I
noticed a better engine performance. For the first time in my memory
the engines were pulling evenly. They were running cleaner and
quieter. There is no smoke at all. Before I had thick black smoke.
The engines are really sweet now, and the fuel is crystal clear.
Numerous people have commented on my clear fuel. The De-Bug has been
on my motors for a year now and I haven’t had to change the filter
once.
I also have figures to
prove that I have greater fuel economy
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High
Speed Catamarans |
Operating between
Singapore and Malaysia frequently experienced main engine and
auxiliary engine stoppages due to heavily clogged water separators and
secondary fuel filters resulting from a jelly like growth and the
filters had to be replaced every three days.
The operator tried using fuel additives but found the cost
prohibitive. In addition to the blocked filters, the operator
experienced expensive damage to the fuel pumps and injectors.
Since installing a De-Bug unit, fuel oil filter elements did not
have to be changed within the first three months of operation, no
further damage was reported and fuel economy was improved.
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The
Port of Singapore |
Undertook a trial in one of its vessels and fitted a L1000 De-Bug unit
on one of the vessels engines. After fitting, the number of filter
changes reduced by 40% compared with the other engine. The other
engine was subsequently fitted with a De-Bug unit.
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Two Korean trawlers |
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Participated in a comparative trial from December 1995 to June 1996;
Trawlers #601 and #608, both were considered identical, except #608
had a De-Bug unit. fitted. The two trawlers left Korea the
same day to operate off the coast of Portland, Oregon, USA. Against
the background of similar operating hours and total loading on the
engines, the trial demonstrated:
1. Fuel saving of nearly 20%
2. Nozzle life per running engine increased on average by 25%
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Inconnu, a 60ft fishing vessel |
Used for crab and
lobster fishing off the Channel Islands experienced fuel starvation
due to filter blockage. The problem became so severe that the filters
were being replaced every day. Treating the fuel with Biocide only
increased filter life to two days! Upon fitting a De-Bug unit, the
contamination problem was eradicated and filter life increased to 40
days. The owner also dispensed with using expensive chemicals.
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Tropic Star Lodge:
Report 1 |
"Our
engines are running cleaner with less down time for our clients and we
have reduced
our replacement of fuel filters by more than half. We are also
experiencing a reduction in our fuel consumption.
Tropic Star Lodge:Report
2
After using for 2 years
"...have been
using De-Bug Units for over two years on our extensive fleet of
yachts, generators, trucks and other vehicles" "
... with the use of De-Bugs, we have
increased our engine time between
overhauls from from 3000 to 4500 hrs with very little mechanical
downtime..."
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Inconnu, a 60ft fishing vessel |
Used for crab and
lobster fishing off the Channel Islands experienced fuel starvation
due to filter blockage. The problem became so severe that the filters
were being replaced every day. Treating the fuel with Biocide only
increased filter life to two days! Upon fitting a De-Bug unit, the
contamination problem was eradicated and filter life increased to 40
days. The owner also dispensed with using expensive chemicals.
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Norna
- Scottish Fisheries Protection Vessel |
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Experienced microbial spoilage in the diesel fuel header tank, and
during bad weather, a build up of a sludge type biomass in the fuel
feed line to the purifier halving its capacity from 1 tonne per hour
to 0.5 tonnes per hour. In addition, the fuel strainers on the feed
lines to the twin 3,000 HP engines had to be cleaned every ten days to
prevent fuel starvation.
After fitting of an L4000 De-Bug Unit, restrictions were eliminated
and the cleaning cycle for the engine strainers was increased to ten
weeks; a sevenfold increase in life.
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RMK Transport: |
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Prior to fitting the
De-Bug I was using abut 320 litres of diesel on the
Cairns - Townsville return run and since fitting the De-Bug
the same run is only using about 270
litres of fuel, representing a fuel saving of about 15%. |
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Remote Power
Stations in the Darwin |
Area of Australia are
supplied by coastal barges which in many cases cause the infestation
of the diesel fuel used. The Power and Water Authority of the Northern
Territory fitted De-Bug units to the fuel systems and recorded
increases in fuel filter life from 168 hours to 500 hours. Further
trials demonstrated that filter life could be increased well beyond
500 hours.
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