The High-Rise Building Multiple Entry Vertical Escape Technology
1968 - 2001
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History will shows that:
THOUSANDS COULD HAVE SAVED THEIR LIVES IN THE WTC
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ABC
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People that were trapped above the floor levels impacted could have
been evacuated by only one set of four or five units of ZEC-EM, remaining
operative over 25, in few minutes.
The Zephinie Escape Chute (ZEC)
can operate over 100 floors.
Can evacuate up 1000 persons per minute, including handicapped ,
injured persons with the same average escape speed.
Ignorance or bad will
can't invalidate demonstrable
facts.
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1974
Fire code enclosed ZEC escape chute
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Single Entry SE
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25 years Applications
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Historic Archive
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ZEC's Licensees
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Ave2853
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Misunderstanding the design's particularity that makes the Zephinie 's
multiple entry evacuation module an unlimited height mass evacuation technique
lead to non-sense question and unfair judgments.
The Zephinie's Multiple Entry evacuation module IS
NOT mechanically a single continuous evacuation system but a series of one
floor modular escape devices.
So, eventually thinking that under Galileo and Newton physic laws it
could occur some physical difference on the ZEC-ME evacuation parameters between
a 3 stories and eventually an 120 stories installation should not be a
serious idea for anyone having learned engineering or architecture
science.
The included illustration will try to explain that a ZEC-ME
module performances and limits are independent of any other
interconnected ZEC-ME units. Such as could be independent a one floor
length hook ladder from another similar ladder (fig 3) or a stairway's
floor unit (fig 4) the physical performances and limits of a ZEC-ME
installation are only related to single standards system unit modules characteristic.
No matter if it we have a 3 stories or 300 stories installation.
A ZEC-ME unit mechanical characteristics will have to absorb/transforms
limited potential of energy equal to a mass of 2<4 peoples time a
distance of one floor height in a given time period.
Basically a ZEC-ME per floor unit practical working physical scale will be
a payload of 200 kg in a 1<3 second period from a vertical distance
of 3.5 m.
The potential energy transformation occurring in a ZEC-ME is about 1700
w/s. The two sleeves give an area of 110,000 cm2 for dissipating said 1700
w/s giving an energy load to dissipate of about 0,05 watt second or
180 Joule per cm2 of chute fabric. (Back in 1968 it was a matter of
concern. Since over one millions ZEC evacuation experiences have confirmed
that we know how to manage the problem. We have set proprietary
evaluation methods of heat effects) Please see note1
So if a three stories ZEC-ME modules installation works fine, a ten, thirty
or hundreds stories installation will works the same way using classic
scientific method of factors extrapolation.
But a other problem arise for presuming of any scientific competence to
judge a life saving technology badly needed for years by the honest
American having not special interest in fire safety deals : the 25 years
ignorance that the system works. How could known that it works in the USA
if the very US corps having supported the technology in Europe was
deterred to market it in the US , the employees forbidden to mention the existence
of the product in the USA!
So... it is ignored that 2/5 stories demo structure
ZEC-ME have been 100,000's times publicly tested oversea for decades.
Stubborn ignorance will not erase facts known by millions of witness in Europe and other
countries.. ZEC-ME system allows an effortless, precise and
complete control of motion.
No equation can explain human's feeling.
Some day thousands American will personally experience the ZEC
mass evacuation technology. Some day it will be impossible to hide anymore
to the American public opinion the special interest biased motivations
having motivated key players of the NY safety regulation about forbidding
innocent peoples evacuation.
After making the intellectual efforts for understanding that a 100
floor ZEC-ME installation is made by interconnecting 100 "mechanically"
independents ZEC-ME units ... just working like every single steep
of a stairway.
A stairway steep will carry always the same limited number of persons.. no
matter the height of the building, the mechanical parameters of a the
steep are the same.
High speed motion and eventual dissipation of potential energy conversion
is obviously related with an erroneous idea of how eventually works the
ZEC-ME
The following intellectual effort to adjust with reality, is to try
understanding that a ZEC-ME in emergency evacuation situation is saturated
( like a staiway) by the disproportion of number of entries versus the
single exit capacity of the ZEC sleeve, not matter if the extreme limit
can reach 3600 peoples/hour for a 65 cm diameter system (2 ft). As soon as
the ZEC-ME sleeves are saturated it result a slow motion the ZEC-ME
installation.
the vertical speed range in the .3<1m/s (1/3ft/s)
no much different that stairway descend speed but resulting 3 times faster
because we use a vertical path and stairway a helicoids'
path.
Of that results that thermal dissipation is a far less matter of
concern than the tensile efforts transferred the sleeve and inertial
overload.
So the breaking load of 14 tons for the support sleeve's payload of
about 200kg . ( margins exceeding elevator industry safety standards)
Training for using the the ZEC-ME : the low speed motion in case
of mass evacuation make absurd the objection that public will not know to
use the ZEC in case of severe emergency.
In mass evacuation occurrence a complete ignorance of how the system works
is not a problem. But it is a problem in case of using the ZEC-ME when the
installation is empty.
Note # 1.
Thermal dissipation:
We have three different specific heat material and constant micro motion
in the textile components. Strong electrostatic effects and pressure
differential effects produced body motion in the ZEC sleeves.
The two "independent" sleeves system present still unique design advantage over
any other vertical evacuation devices for smoothly transferring the breaking effect
between the body in translation to the sleeve support due to a unique
"form effect" resulting of the particularity of the low module
elastomer used in the design.
A mathematical model remains extremely complex to work out:
The ZEC "form" effect would require extremely complexes tribological analytic
works to be evaluated compared with straight surface friction effect.
The particular "form" effect also
complicate mathematical interpretation considering the lows module synthetic
elastic material reaction that produce the friction effect. The material
present complex electro-molecular potential energy storage including
time "hysterisis" phenomena and temperature effects.
Zephinie invented a particular testing device in 1976 to better evaluate
the safety margins considering particular phenomena occurring in cloth
material.
Most of complex physical phenomena were considered
in the thousands of tests of the different ZEC evacuation models
(1973-1976).
Including strong UHF field on the ZEC storage were considered.
We have proprietary methods to monitor the ZEC sleeves
physical parameters.
Our 36 years experience represent the original source of competences in
matter of modern vertical mass evacuation.
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Ave2853
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