Fuel Efficiency Solutions
for Commercial Trucks
Energy Efficiency Solutions
for Open Case Refrigeration
In the United States, trucks account for over 60% of all commercial transport. This
trend is unlikely to change in the foreseeable future. Class 8 trucks, the majority
of which are commonly known as semis or tractor trailers, account for nearly 12%
of all fuel consumed nationwide. The focus on increasing fuel efficiency by
trucking companies and the Department of Energy (DOE) is well warranted. The
challenge is that a truck moving at 70 mph expends over 65% of its fuel simply
overcoming friction with the air (also known as drag.) A typical long haul truck will
travel 100,000 to 150,000 miles a year at a rate of about 6 mpg. This represents a
fuel cost per truck of between $55,000 and $75,000 a year. A significant reduction
in drag would substantially reduce overall operational costs.

16.3% Drag Reduction or 8 - 10%     
Fuel Savings for Class 8 Trucks












The solution is lightweight, self powered, has a small physical profile, and can be
easily retrofitted onto existing truck fleets. Production costs are relatively low and
systems can be installed quickly and efficiently without disrupting the trucks other
systems or needing to tie into the trucks electrical circuit. Maintenance will be
minimal if any.

Cool Flow Dynamics has filed patents for this exclusive IP and will be adding to
this over the coming year.  The company in the past received government support
in the form of grants to further our development efforts in conjunction with the
University of Florida. The Company approach to our products have been highly
end user focused and as such industry response has been very favorable to our
concept.
WHY WE SHIFTED AWAY FROM THESE TECHNOLOGIES:
     Linear Actuators, Serpentine Actuators and
                      Synthetic Jet Actuators
August 1, 2016 - Last Updated

The most compelling  reason to use these types of technologies for active air
flow solutions to reduce drag is that the velocities that they produce use very
low watts of power. The challenge is that  they all require very sophisticated
power supplies to operate as they have
very unique high voltage electrical
characteristics needed to drive them
.

Linear Actuators:
The most simple of the group, can be configured to produce as much as 20
m/s (45 mph) velocity, and produces a laminar flow of air.  Inexpensive to
produce, these are very effective for some applications of air flow control.  
There are several versions of linear actuators, but their basic design and
laminar flow characteristics are fundamentally the same. One major problem
is that these
cannot be exposed to rain or snow(electricity). Laminar flow has
not been as effective in reducing drag based on our testing at the University of
Florida applied physics research group which conducted a 9 month study on
the subject. The highly charged power that glows(See image above) is
producing toxic volumes of ozone, which is a regulated pollutant by the EPA.

Synthetic Jet Actuators (SJA's):
Is the most powerful of the 3 capable of producing over 300 mph, but these are
expensive to produce as
a membrane or diaphragm moves up and down
hundreds of times per minute to function
. Although the mechanism is fairly
simple, extremely fast cycling requires high-level engineering to produce a
device that will last in industrial/commercial applications, a challenge that has
yet to be overcome or proven over extended periods of time.
The system is
also parasitic to the trucks engine and although low wattage, very high
voltages
.

Serpentine Actuators:
Unlike the linear plasma actuator, this unique design developed by Dr. Subrata
Roy, operates by producing active air flow control.  By manipulating the pattern
of air flow at relatively low velocities, it is capable of disrupting drag at near
double the efficiency than simple laminar flow. This design is inexpensive to
produce unlike SJA's as it has no moving parts. As with Linear plasma
actuators, these produce toxic volumes of ozone which could not be mitigated
without neutralizing its performance. In addition, as with all plasma, these
exposed electrodes would not operate under wet conditions, and must be
exposed to function.
The continuous power requirement of 27 kV is known
short term, but an unkown over the long term.
Left: Image of highly charged
exposed surface of a linear
plasma actuator. (Purple
glow) Thi
s surface will fail if
exposed to water
and emits
vast quantities of ozone
at
dangerous levels.
Below:
The mechanics of an SJA.
Left: SJA. Graphic of an
example. The highly sensitive
membrane acts like a
diapragm or trampoline to
"push" air out at rapid speeds
and velocity
.
Learn More:
about OZONE
© Cool Flow Dynamics, Inc. 2013
Cool Flow Dynamics Inc. has developed a retrofit proprietary product which
provides energy efficiency solutions for open case refrigeration targeting the
global retail food and beverage segment. 75% of the energy used to operate
these open refrigerators is wasted, leaving a large margin for improvement both
in economic and environmental terms.

Our working prototypes have achieved a 19% energy costs savings using 4.5
watts of power for every 600 watts saved. The system is designed to install in
under 15 minutes for every 4 linear feet and is a plug and play system.  With a
payback of under 6 months at 12 cents per kWh, it is very low cost.

       19% energy cost savings....
4.5 Watts used for every 600 saved

In the US the total energy consumption of open refrigeration represents 55% of
a typical convenience store and 35% of grocery stores. This represents the
largest known source of wasted energy in the commercial sector. The problem
is so substantial that new 2014 legislation (proposed) is being introduced by
the US Department of Energy in an attempt to curb inefficiencies.

The Company estimates that the global market opportunity for this energy
saving solution in the grocery and the convenience store market is $20 billion.
Globally where electricity prices are higher, the need and opportunities are even
greater for energy efficiency solutions. Alternative market solutions have
inadequately addressed this challenge to date, creating an attractive opportunity
for a solution that is more closely aligned with their needs. The company
intends to challenge the status quo and has introduced a solution that can
substantially reduce the energy wasted, while generating savings and a
payback that exceeds our customers expectations.

The Company will be going into a Beta with a convenience chain with 8,500
stores under its control, this fall (2016).  The company is also seeking to
expand its US sales channels.
Old Articles
Incorporated:   August 2013

Type:                  Delaware C

Founder:            Kahoru 'Kalu' Watanabe

Home Base:      6321 Porter Rd - Suite # 7
                        Sarasota, Florida 34240
Cool Flow Dynamics Inc., original mission in 2013 was to develop energy efficiency solutions using state of the art plasma actuators and with research conducted
with the University of Florida. In late 2014, we funded more research at the University of Florida to expand to developing drag reduction solutions for commercial trucks
using serpentine plasma actuators. Both achieved positive results, but there was understandable industry push back to the use technology with no commercial
history for the rigorous use and conditions required for the trucking industry.
27 kV is tremendous voltage, should it backfire for any reason. (See article Below)
In 2015, we brought the refrigeration & truck projects to Sarasota &  focused on eliminating the technology risks
associated with plasma actuators (See article below). Advanced wind tunnel testing was conducted at both
Kettering University and Taisei Techno in Japan and we successfully scaled from the original 1:64 size to 1:32 and
finally 1:14.  We have developed a commercially viable Beta model  with a potential 8 - 10% fuel savings, that will
begin testing in September with a top national truck carrier with 4,800 trucks
.

In refrigeration, in June we successfully achieved a 19% combined cost savings using a state of the art open case
refrigeration unit.  In both cases, we anticipate payback periods of 6 - 12 months.  In the truck gap solution, we have
completely eliminated the technology risk. We have also developed other aerodynamic solution prototypes,
including a new generation rear solution, which  will be further refined post our upcoming "A" round funding.
Results without the Technology Risks