eXess Prsentation SFT

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eXess? in fuel tanks

• What is eXess?
• Major eXess? Benefits
• Disadvantages
• Conclusion

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
3

• eXess is a trademark of an expanded metal
• three-dimensional honeycomb structure,
• either in the form of

? eXess? Network or
? eXess? Networkcylinder
What is eXess?
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
4
Technical Data of eXess?
Material aluminium alloy Weight approx. 0.045
kg / liter Loss of volume by displacement of
fuel approx. 1.5 Loss of volume by absorption of
fuel 0 Fuel compatibility completely compatible
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
5
eXess? in fuel tanks

• What is eXess?
• Major eXess? Benefits
• Disadvantages
• Conclusion

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
6
Major Benefits of eXess?

• Improved Comfort
• Reduction of HC-Emission
• Improved Active Safety
• Improved Passive Safety
• Reduction of Danger due to Fire
• Electrostatic Aspects

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
7
Improved Comfort

• Noise reduction regarding fuel sloshing
• Reduced dynamic movement of vehicle after stop
  due to better fuel stabilization
• No necessity of baffle plates
• Faster refilling due to reduced fuel-foam
• Increased fuel capacity due to reduction of
  fuel-foam
• Reduced initial pressure peak at start of
  refilling

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
8
Reduced Fuel Sloshing
You see the liquid in the left chamber almost
frozen,
whereas the liquid in the right chamber is
sloshing unhindered!
to repeat the video, please click the picture
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
9
Improved Comfort

• Noise reduction regarding fuel sloshing
• Reduced dynamic movement of vehicle after stop
  due to better fuel stabilisation
• No necessity of baffle plates
• Faster refilling due to reduced fuel-foam
• Increased fuel capacity due to reduction of
  fuel-foam
• Reduced initial pressure peak at start of
  refilling

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
10
eXess? and fuel-foam(gasoline)
Whereas, without eXess?, gasoline can foam
unhindered, during refuelling process,
with eXess?, foam formation is almost stopt.
In comparison it is obvious, that, also
evaporation will be reduced with eXess?, during
refuelling.
to repeat the video, please click the picture
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
11
eXess? and fuel-foam (diesel)
Without eXess diesel appears almost milky
during refuelling process.
In the observed situation, it needs about 30
sec., that the diesel becomes clear and up to 2
min. until all foam will be destroyed.
to repeat the video, please click the picture
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
12
Improved Comfort

• Noise reduction regarding fuel sloshing
• Reduced dynamic movement of vehicle after stop
  due to better fuel stabilization
• No necessity of baffle plates
• Faster refilling due to reduced fuel-foam
• Increased fuel capacity due to reduction of
  fuel-foam
• Reduced initial pressure peak at start of
  refilling

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
13
Increased fuel capacity
Refuelling tests with a plastic tank, designed
for ORVR (liquid sealing), showed following
results
The tank equipped with eXess? could be filled
with almost 1 more fuel.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
14
Improved Comfort

• Noise reduction regarding fuel sloshing
• Reduced dynamic movement of vehicle after stop
  due to better fuel stabilization
• No necessity of baffle plates
• Faster refilling due to reduced fuel-foam
• Increased fuel capacity due to reduction of
  fuel-foam
• Reduced initial pressure peak at start of
  refilling

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
15
Reduced pressure at start of refilling
Pressure peaks at the beginning of the refuelling
process can leed to an unwelcome shut-off of the
nozzle.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
16
Major Benefits of eXess?

• Improved Comfort
• Reduction of HC-Emission
• Improved Active Safety
• Improved Passive Safety
• Reduction of Danger due to Fire
• Electrostatic Aspects

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
17
Reduction of HC-Emission

• Reduction of HC-Emission due to reduced fuel
  movement during and after Vehicle motion
• 8 reduction of HC-Emission for ORVR fuel systems
  due to eXess? during refuelling

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
18
Reduction of HC-Emission due to fuel
stabilization
Simultane shaking of both cans showed 25 mbar
without and 2.5 mbar with eXess?.
Lower pressure would leed to lower emission!
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
19
SHED Tests with eXess?
Metallic gas-can (open filler neck) positioned in
a heatable SHED-chamber on a shaking
table. During the test temperature increased from
about 21.5C to about 23.5C, pressure was
constant with 975mbar.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
20
SHED Tests with eXess?
HC-Emission reduction from 298.8 ppmV to 103.9
ppmV.
This means for 65.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
21
Reduction of HC-Emission

• Reduction of HC-Emission due to reduced fuel
  movement during and after Vehicle motion
• 8 reduction of HC-Emission for ORVR fuel systems
  due to eXess? during refuelling

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
22
Refuelling Tests with eXess?
Refuelling tests with a plastic tank, designed
for ORVR (liquid sealing), showed following
results
The tank equipped with eXess? could be filled
with almost 1 more fuel, whereas the amount of
HC, which had to be adsorbed by the carbon
filter, could be reduced by almost 8.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
23
Major Benefits of eXess?

• Improved Comfort
• Reduction of HC-Emission
• Improved Active Safety
• Improved Passive Safety
• Reduction of Danger due to Fire
• Electrostatic Aspects

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
24
Improved Active Safety

• Improved driving stability due to reduced fuel
  movement within the tank

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
25
Improved Active Safety
A U-shaped tube, limb-length 1m each, was filled
with water up to its half. One limb was closed
with a seal cap through which the liquid column
could be moved to the other limb with compressed
air. After a sudden opening of the cap a liquid
oscillating started.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
26
Improved Active Safety
Supplying the lower part of the U-tube, with
eXess? the liquid motion stopped after 7 seconds,
almost without oscillation, whereas without
eXess? oscillation continued for over 1 minute.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
27
Major Benefits of eXess?

• Improved Comfort
• Reduction of HC-Emission
• Improved Active Safety
• Improved Passive Safety
• Reduction of Danger due to Fire
• Electrostatic Aspects

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
28
Improved Passive Safety

• Reduced internal fuel pressure peak in case of
  sudden impact on tank
• Reduced fuel spray and fuel loss in case of
• tank leakage
• tank rupture
• connection-brake between tank and filling unit

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
29
Reduced Pressure Peaks
Pressure peaks caused by sudden impacts could be
reduced up to 50.
It is obvious, that lower internal pressure would
leed to reduced fuel spray in case of any leakage.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
30
Major Benefits of eXess?

• Improved Comfort
• Reduction of HC-Emission
• Improved Active Safety
• Improved Passive Safety
• Reduction of Danger due to Fire
• Electrostatic Aspects

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
31
Reduction of Danger due to Fire

• General Explosion Protection
• Heavily reduced access of oxygen and therefore
  strongly reduced flames due to eXess?
• Reduced smoke developement in case of fire in
  tank (tunnel)
• Easier fire extinguishing

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
32
General Explosion Protection
The lower and upper explosion limits (Exu and
Exo) describe the concentration area of the
gaseous fuel in mixture with air within which a
continuously ongoing reaction can be started by
an ignition source.
Investigations of accepted institutes (TUEV
Vienna, Industrial Technology Research Institute
Taiwan) with 20 and 400 liters explosion
containers showed that the upper explosion limit
can be reduced so far, by the installation of
eXess, (depending on the installed eXess -
volume) that an explosion is prevented by heat
absorption.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
33
General Explosion Protection
explosion pressure without eXess
explosion pressure with eXess
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
34
Reduction of Danger due to Fire

• General Explosion Protection
• Heavily reduced access of oxygen and therefore
  strongly reduced flames due to eXess?
• Reduced smoke developement in case of fire in
  tank (tunnel)
• Easier fire extinguishing

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
35
Heavily reduced access of oxygen and therefore
strongly reduced flames
Because of heat absorption and reduction of the
oxygenation only a small flame is formed
evaporation and burning of volatile components
are controlled by eXess, in contrast to the high
temperatures and high, sooty fire in the other
case.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
36
Reduction of Danger due to Fire

• General Explosion Protection
• Heavily reduced access of oxygen and therefore
  strongly reduced flames due to eXess?
• Reduced smoke developement in case of fire in
  tank (tunnel)
• Easier fire extinguishing

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
37
Reduced smoke developement
During the whole burning period the control
vessel showed fire with high, blazing flames,
attended by great heat and dark clouds of smoke,
whereas with eXess? small and quiet flames
without any smoke and heat burned.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
38
Reduction of Danger due to Fire

• General Explosion Protection
• Heavily reduced access of oxygen and therefore
  strongly reduced flames due to eXess?
• Reduced smoke developement in case of fire in
  tank (tunnel)
• Easier fire extinguishing

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
39
Easier fire extinguishing
After a burning period of 2 minutes the
eXess?-fire could be extinguished with pure
water, whereas for the control vessel foam was
needed notice that the firemen had to stay far
away from the fire, because of the great heat.
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
40
Major Benefits of eXess?

• Improved Comfort
• Reduction of HC-Emission
• Improved Active Safety
• Improved Passive Safety
• Reduction of Danger due to Fire
• Electrostatic Aspects

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
41
Electrostatic Aspects

• Simple grounding
• Reduced static loading due to reduced fuel
  movement

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
42
eXess? in fuel tanks

• What is eXess?
• Major eXess? Benefits
• Disadvantages
• Conclusion

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
43
Disadvantages

• Special level gauging system required
• Additional mass (0.045 kg/l)
• Additional costs

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
44
eXess? in fuel tanks

• What is eXess?
• Major eXess? Benefits
• Disadvantages
• Conclusion

EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
45
Conclusion

• If eXess? is installed in car tanks, due to its
  benefits,it would leed to many advantages for

• car passangers
• environment and
• in case of accidents also to rescue teams.

If this would be recogniced by at least one car
manufacturer, eXess will become standard!
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
46
its up to you!
its up to you!
EXESS Group EXESS Holding AG EXESS Lizenz
AG EXESS Produktions AG EXESS Engineering AG
47
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