(Translated from original letter)
OLCESA - COOSUR
TARANCON-VILCHES
- (Spain)
Vilches 18 December 2003
Dear Sirs,
After more than two years’
experience using the additive “rb bertomeu” beco F1/ASF in our
cogeneration plants at COOSUR in Vilches, Jaén province, and at
OLCESA in Tarancón, Cuenca province, we have compiled sufficient
real data to be able to calculate the reduction in fuel oil
consumption attained by using this additive. This reduction was
estimated to be approximately 0.9% – 1.2 % in our letters of May 2002,
which also gave details of a range of significant advantages that we
observed when using this additive in both plants.
Both our cogeneration
plants consist of two WARTSÏLA engines, type 12 V 46 B, with a
power output of 10.5 MWhe each, running on fuel oil. The levels of
fuel oil consumption per KWhe produced, before and after using the
additive beco F1/ASF, are as follows:
Plant
Year Fuel Type Additive
Consumption(g/ KWhe)
COOSUR
2000 fuel oil NONE
201.5
2001 fuel
oil NONE 201.6
2001 fuel
oil beco F1/ASF 200.5
2002 fuel
oil beco F1/ASF 199.8
2003 fuel
oil beco F1/ASF 198.3 (-1.61%)
OLCESA
2000-2001 fuel oil NONE
208.5
2002 fuel
oil beco F1/ASF 201.8
2003 fuel
oil beco F1/ASF 198.9 (-4.6%)
In the COOSUR
Plant, even with engines perfectly adjusted in terms of fuel
consumption prior to commencing the additive treatment, it may be
observed that the use of beco F1/ASF has achieved a saving in
fuel oil consumption of 3.25g/KWhe produced, equivalent to a saving
of 1.61%. According to our calculations, which include
measurements of the reduction in fuel sludge formed, this saving is due
to:
a) Improved
utilisation of organic components of sludge as fuel: 0.40 %
b) Improved
combustion of the fuel oil:
1.21 %
In the OLCESA
Plant, where the engines were not so well adjusted in terms of fuel
consumption as those at COOSUR, it may be observed that the use of
beco F1/ASF has produced a greater reduction in fuel oil consumption,
to the extent that consumption falls to levels similar to those obtained
in the COOSUR plant. The resultant saving in fuel oil consumption
comes in at either 9.6 or 8.15 g/KWhe produced, depending on whether
the present consumption level is taken as that of the year 2003 or as
the average for 2002 and 2003. These values represent a saving in
fuel oil of between 4.6 % and 3.9 % in comparison with the
overall consumption levels prior to commencing additive treatment. We
consider this reduction to be due to several factors, including the
reduction in fuel oil sludge, improved combustion of fuel oil, reduced
deterioration of injection systems, etc.
We hereby authorise the
circulation of this reference letter for use as you may see fit.
Best regards,
Signature with Company Stamp
Signed Josu Ortuoste
Cogeneration Plant Manager
Engineer of the Merchant Navy