Trimodal Group
Advanced Power
Generation Technologies
Corporate Overview
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Trimodal Group is a Vancouver Washington Privately held
company has developed and applied for patents on an
innovative new engine that is more efficient than any
existing turbine technology and can also generate
electricity from sources of low temperature heat that were
until now, not usable.
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Construction arm services Fortune 500 Customers include
Chevron, Arco, BP, Shell, Weyerhaeuser, GP, and GE.
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Ownership employs between 250-1500 people depending
on number of jobs contracted.
LTPC Engine Description
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LTPC = Low Temperature Phase Change
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Modular based – plug-n-play type technology.
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The LTPC engine is a positive displacement device that does not
depend on high-pressure steam to create energy. While the LTPC
engine can be used very effectively with steam, it was primarily
designed to use a refrigerant as the working fluid, which enables
it to create energy from fluid temperatures as low as 150F/70c.
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Our proprietary refrigerant generates over 580psi at 200F/100C
which is far more pressure at a lower temperature than using
water/steam.
History
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RANKINE CYCLE ENGINES
The “Rankine Cycle” has been recognized for well over 100 years as an
excellent method of converting heat into mechanical energy. Perhaps the
best-known applications were the steam locomotives that pulled trains
across the continent in the 1800s.
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Even today most power plants, including nuclear, use the Rankine Cycle
to generate power, using turbines where the energy source is steam.
Whether the fuel is coal, gas, oil, or nuclear; the heat generated by the
combustion of these fuels is used to generate steam. This steam, at a
pressure of approximately 600 psig to 1000 psig, which spins a turbine,
converts the heat to mechanical energy.
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Because the turbine is essentially a “fan” there is a “slippage” as the
steam passes through the turbine wheel, whereas a positive displacement
device is far more efficient than and therefore capable of producing
mechanical energy at a much lower pressure. The LTPC engine efficiency
obtained is in the area of 50% compared to 25% to 35% efficiency for a
turbine using comparable steam.
Technology Overview
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The patent pending LTPC engine system pumps high pressure
liquid refrigerant into an evaporator where the low value heat is
added to the vapor and the resultant high pressure vapor,
approximately 300-575 psig, is used to drive double acting pistons
within cylinders.
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A double acting piston uses the high-pressure gas to drive the
piston downward as well as upward. This means twice the energy is
produced per cycle; and compounding the cylinders further
increases the efficiency. This means that the unused energy leaving
the first or high-pressure cylinder enters the second stage or lowpressure cylinder to extract added work energy. In a breakthrough,
which was designed to minimize internal friction losses, piston rings
are eliminated and “deliberate blow-by” is used to entrap a fluid
boundary layer seal.
Double Acting Pistons (continued)
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The piston diameter of the second stage piston is approximately
twice that of the first stage piston (four times the surface area) so
as to produce equivalent power as the smaller higher-pressure
first stage piston. The vapor leaving the low-pressure cylinder
passes through a heat exchanger and then to a condenser where
the vapor is returned to the process as a liquid. The heat
exchanger mentioned reclaims some of the heat and transfers
this energy into the refrigerant liquid before it enters the
evaporator and the cycle is repeated.
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The cylinders of the LTPC engine are arranged in an “opposed”
or “pancake” configuration. In an original design move,
alignment rods extend beyond the cylinder heads (via bushings)
to maintain perpendicularity of the connecting rods to the crank,
eliminating side loads and maintaining piston alignment within
the cylinders without contact.
Scotch Yoke
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There is a “Scotch Yoke” arrangement in lieu of a
conventional crankshaft. This arrangement, along with a
rotational speed of approximately 650 RPM allows a
smooth almost vibration free operation. There is a close
tolerance, but no contact between the pistons and the
cylinder walls. The design uses an electronic-solenoid
valve, eliminating camshafts and valve lifters, thus creating
an engine with minimum friction and parasitic load.
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The LTPC engine is quite simple to construct. Most of the
engine can be injection molded from reinforced
thermosetting plastic with metal use being reserved for the
output shaft, connecting rod and fasteners.
Low Temperature Applications
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Low Temperature Geothermal: Many wells that have been drilled
can achieve temperatures of 70c-100c, but few reach the high
temperatures that are required for traditional technologies.
Drilling is one of the most expensive parts of developing
geothermal plants and by not having to drill nearly as far, the
project will be much more profitable.
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Waste Heat Recovery: We can utilize the was waste heat
produced by any power plant, geothermal plant, steel mill,
cement plant, paper mill, or any other kind of manufacturing plant
that generates waste heat.
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Concentrated Solar Power: We can combine the engine with
solar collectors that collect both high and low grade steam/heat
for large scale, cost effective solar.
Trimodal’s LTPC Technology
Side View of Cylinders/Valves
MARKET OPPORTUNITIES
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Waste heat from any sources
New Power Generation plant
Replace any steam turbine for higher efficiency
Low/High Temperature Geothermal Sources
Large Scale Concentrated Solar
Boiler and Industrial Furnace Stacks
Low Pressure Steam at Condensers of Conventional Power
Plants
Gas Turbine HRSG Discharges
Refrigeration Plant De-Super heaters
Hot Natural Gas in some Oil Fields
Waste Heat from Steel and Aluminum Rolling Mills
Sources of Waste Heat
Industry & Equipment
Pulp & Paper
Power & Recovery
Source System (s)
Typical Gas & Fluid Stream
Temperatures
Power Boiler Stack Gases (post feed
water economizer)
325 to 450 F
Recovery Boiler Stack Gases (post
ESP)
270 to 300 F
Rotary lime kiln exhaust Stack
(post ESP)
350 to 450 F
Liquor Dissolving Tank Vent Stack
200 to 212 F
Paper machine exhaust Stack
200 to 212 F
continued
Industry & Equipment
Power
Source System (s)
Steam Turbine air cooled & water
cooled condenser systems
212 to 300 F
Gas Turbine exhaust system heat
exchange
225 to 450 F
HRSG Exhaust stack
Blow Down Tank vent exhaust
Petrochem
Typical Gas & Fluid Stream
Temperatures
FCC Cat. Regen Gas Exhaust
HRSG Exhaust stack
Blow Down Tank vent exhaust
270 to 450 F
212 to 300 (+) F
250 to 1300 F
270 to 450 F
212 to 300 (+) F
Project Example Economics
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10MW Exhaust Waste Heat Recovery
Annual revenue 10MW @ 8,500 hours/year @
$100/MWH = $8.50 million per year
Maintenance/operations $250,000/yr
Finance cost $15 million @10yrs 8% = $2.250,000/yr
Net profit = $6 million per year
Life Expectancy 20 years = $120 million net profit
over the life of the project
Plus carbon credits/Renewable Energy Credits
Status and Sizes
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The engine is scalable up to 5MW in size. We will initially
build 5 different sized models, 100kw, 500kw, 1MW, 2.5MW,
and 5MW so that we have an appropriate size to fit most
applications.
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For larger projects, we can simply have multiple 5MW units
that can be combined on a single shaft.
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The first demo engine which is a 100kw unit has been
completed and has been tested on Air pressure where is
outperformed expectations. The vapor system now needs
to be sized according to the output of the engine.
Trimodal Business Opportunities
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Trimodal is seeking investment in the range of $5-$20
million dollars for global expansion.
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Trimodal is seeking JV partners and Exclusive Licensing
arrangements in exchange for investment.
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Trimodal is actively seeking a qualified OEM Manufacturer
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Trimodal is looking for strategic partners to assist in the
development of large scale projects.
Contract Info
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Trimodal Group
Marty Johnson (President)
800-530-9989 office or 503-475-7575 cell
[email protected]
7600 NE 47th Ave
Vancouver, WA 98661 - USA