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Understanding Laboratory
Bench Tests
Bench tests are different to "road tests", "user
experience/feedback" and "Rolling Road Tests".
Bench test use an engine directly coupled
to a dynamometer, therefore no
gearbox/transmission systems,
rear differentials/final drives
nor tires are
involved.
This is important because
of the affect these "normal vehicle" components have on performance and hence fuel economy, for
instance tyre size effects fuel economy as the larger the tyre, the
greater the rotational distance covered by a tyre for 1 revolution of
the engine.
Similarly gearboxes/transmissions, rear
differentials/final drives, all vary the amount of engine rotation with
respect to tyres rotation. Take gearboxes for example: Lower gears produce more RPM and greater
torque
(allowing faster acceleration from a standstill); higher gears
allow engines to operate at less RPM, producing less torque but allow higher
top-end speed
and better fuel economy.
Militec-1 Laboratory Bench Tests
University Institute of
Technology, University of Paris.
The University of Paris X
is one of the 13 constituents of the
University of Paris, UIT has a vast multi-disciplinarity in the field
of engineering sciences, internationally recognised excellence and
activity in connection with industry and services.
130 laboratories (3 000 faculty members and 2000 PhD students) which cover the
major fields in science and technology.
University of Paris X - Petrol Engine Test.
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| Test Summary:
"The use of the lubrication additive brings about an improvement of
consumption and of power reaching 4% after 25 hours of use."
"This can be attributed to a reduction of the torque of
rubbing due to an improvement of the lubricity of the lubricated parts in
relative movement. It can be seen at the start of using , after about one
hour, a slight degradation in performance followed by an improvement,
already clear after 5 hours of use."
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Full Report
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US
Department of Transportation
"A demonstration of Militec-1 was witnessed by Professor Jose
Femenia, the Head of the Department of Engineering at the U.S. Merchant Marine
Academy, and several faculty members of the Academy at a joint meeting of
SNAME and the Society of Marine Port Engineers in New York City. After the
demonstration, Professor Femenia offered the Academy's diesel generator set as
a test facility. Militec-1 was subsequently added to the engine lubricating
oil of the diesel generator set and the change in the engine performance was
analyzed."
DOT - Bench Diesel Engine Test.
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Test Summary:
"The addition of Militec-1 to the engine lubricating oil of the Waukesha
marine diesel generator set at the U.S. Merchant Marine Academy has
produced a reduction of specific fuel consumption of three percent
at an output of 250kW. In conclusion, the data shows that the engine is
experiencing a decrease in its specific fuel consumption due to the
reduction of friction by the addition of Militec-1." |
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Full Report
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Brunel
University
"Brunel University
is one of the largest and most active engine research groups in U.K., their
research on internal combustion engines goes back to the late 1960s. The work
of the Group covers both experimental and modelling aspects of engine
research."
The group has 11 "Benched Test Engines" housed
in two laboratories" as well as several unconnected, spare or old
engines.
At the time of testing Brunel University's engine group worked with
the following sponsors/collaborators:
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- EPSRC
- European Union
- Ford Motor Company
- Jaguar Cars Ltd.
- Delphi Diesel Systems
- Rover Group
- BP
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- Johnson Matthew
- Ricardo
- Cambridge University
- Brighton University
- Institut Francais du Petrole
- Instituto Motori
- Renault
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Brunel UNiversity - Petrol Engine Test.
Brunel
University
Brunel UNiversity - Diesel Engine Test.
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Test Summary: - At
operating conditions similar to motorway driving, the addition of
Militec-1 resulted in increased fuel economy of just below 7%.
- "BSN
- a systematic smoke emission reduction was obtained with Militec
addition."
- BSNOx - " it is evident that overall Militec resulted in
improved emissions."
- BSHC - "The improvements were very impressive
from ranging from 15% to over 40%."
- In cylinder net heat release
rate increased with Militec-1 as load increased.
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Full Report
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