Thirty years of conformism to special interests has barred the potential
of commercialization of the only high rise alternative mass evacuation
technique in the USA.
Misunderstanding the design's particularity that makes the Zephinie 's
multiple entry evacuation modules has 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
So, eventually thinking that under Galileo and Newton's physic laws, it
could occur some physical difference on the ZEC-ME evacuation parameters
between three stories and sometimes an 120 stories installation should
not be a serious idea for anyone having learned engineering or
The included illustration will try to explain that a ZEC-ME module
performances and limits are autonomous of any other interconnected ZEC-ME
units. Such as could be self-reliant from a 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 is only
related to the characteristic of a single standard ZEC unit... No matter
if we have three stories, or we have a 300 stories building.
Mechanically, a ZEC per floor unit will have to absorb/transforms the
potential of energy of about a mass limited to 200 kg over a vertical
height in average of 3.5 meters.
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 note #1.
So if three stories ZEC-I module installation works fine, a ten, thirty
or hundreds stories installation will work the same way using a classic
logical methodical extrapolation. However, another problem arises from
presuming of any analytical competence, when bad faith is involved ...
to judge a life-saving technology badly needed for years by the honest
American having a not special interest in fire safety deals.
Ignorance that the system works, and how it does works, remain the
privilege of the newspapers' favorite top American specialist in
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 Americans 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 people 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
A stairway steep will carry always the equivalent limited number of
persons... no matter the height of the building, the mechanical
parameters of step are equivalent.
High speed motion and eventual dissipation of potential energy
conversion are 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 an emergency evacuation situation is
saturated ( like a stairway) by the disproportion of the number of entry
versus the single exit capacity of the ZEC sleeve. No matter either if
the extreme limit can reach 3600 people/hour for a 65cm diameter system
(2ft). As soon as the ZECZEC- sleeves are saturated it results from a
slow motion the ZEC-ME installation.
The vertical speed ranges in the .3<1m/s (1/3ft/s)
no much different that stairway descends speed but resulting three times
faster because we use a vertical path and stairway a helicoid' 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 ZEC-ME: the low-speed motion in case of mass
evacuation makes absurd about the objection that public will not know to
use the ZEC in case of severe emergency.
En masse evacuation occurrence a complete ignorance of how the system
works is not a problem. However, it is a problem in case of using the
ZEC-ME when the installation is empty.
Note # 1.
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" sleeve's system presents still unequaled 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 singular "form effect" resulting of the
particularity of the low module elastomer used during the design.
A mathematical model remains extremely complex to work out:
The ZEC "form" effect would require extremely complex's tribological
analytic works to be evaluated compared with straight surface friction
The particular "form" effect also complicates mathematical
interpretation considering the low's module synthetic elastic material
reaction that produces the friction effect. The material presents
complex electro-molecular potential energy storage, including time "hysteresis"
phenomena and temperature effects.
Zephinie invented a precise testing device in 1976 to better evaluate
the safety margins considering specific phenomena occurring in cloth
Most of the complex physical phenomena were considered in the thousands
of tests of the different ZEC evacuation models (1973-1976).
Including strong UHF field to the ZEC storage were considered.
We have proprietary methods to monitor the ZEC sleeve's physical
Our 36 years experience to represent the original source of competences
in the matter of modern vertical mass evacuation.