Transcript Whether at rest or running around the clock, conventional

Technology to Unlock your
Engine’s Reserve Capacity
Evans Cooling Systems, Inc.
Improves Fuel Economy
Reduces Maintenance Costs
Environmentally Friendly
Evans Waterless HD Thermal Coolant
Allows Two Fuel Saving Techniques for Heavy Duty Engines*:
Reduce
fan-on time by
raising fan-on
temp to
230o F
Increase the
thermostat
temperature to
215o F
The fans for heavy duty diesel engines draw considerable horsepower.
Minimizing fan operation leads directly to significant fuel savings.
* See Two Fuel Saving Techniques for Heavy Duty Engines, Tom Light, May 16, 2009
 Retrofitting a Mack MR688S (from the solid waste
industry) with Evans coolant, with raising the fan-on
temperature to 230o F, and increasing the fan off temp,
showed an overall improvement of over 7%!
 SAE Type II test at PAVE Research Institute, using Evans
Waterless HDTC with 215oF thermostats, proved a fuel
economy improvement in excess of 3%!
•
Test was conducted Jan. 2009 by the
PAVE Institute at Auburn Univ.
•
Evans Waterless Coolant and 215oF
thermostats were used.
•
Radiator fans were locked “on” to
remove the fans as variables.
•
Full report is available.
For fleets averaging:
• 5.5 mpg
• $2.25 per gallon
• 100,000 miles annually
A 3% improvement in fuel
economy yields an
annual savings of $1,227 per truck,
or $368,181 for the entire fleet!
Annual fuel cost is
$40,909 per truck.
A 5% improvement in fuel
economy yields an
annual savings of $2,045 per truck,
or $613,635 for the entire fleet!
A typical conversion cost of $600-$800 per truck
pays for itself in 4 - 8 months!
Gallons of Fuel Saved per Year by Converting to Evans HD Thermal Coolant
Miles per gallon
Fuel Saving
%
3
4
3%
500
375
4%
666
5%
5
6
7
8
300
250
213
188
500
400
333
285
250
833
625
500
416
357
312
6%
1,000
750
600
500
429
374
7%
1,166
875
700
583
500
437
8%
1,333
1,000
800
666
572
500
Based on 50,000 miles driven per year

Waterless formula avoids corrosion and electrolysis.

The absence of vapor forms a lower pressure system.
• Reduces stress on cooling system hoses reduces likelihood of leaks;
any leakage is not a high pressure spray phenomenon.

HDTC is a lifetime coolant; replacement cost is eliminated!
• Evans HDTC contains additives that remain stable and in suspension during
storage and use, eliminating the need for replacement.

Lengthens engine life by preventing pump and cylinder liner
cavitation.
•
Cavitation test showed significant reduction of cylinder liner cavitation.

The John Deere Engine Cavitation
Test, a 250 hour dynamometer
test, is highly predictive of realworld cavitation erosion of
cylinder liners. It is expected to be
approved by the ASTM as the
definitive test method.

The test procedure was performed
in April 2009 by a third-party
laboratory using Evans HDTC.

The results were so good that no
water-based formulations, even
ELC formulations, regardless of
additives, come close.

Endurance of the engine is improved by maintaining
control of engine metal temperatures at all times.

The absence of cavitation erosion extends the life of
cylinder liners and coolant pumps.

No abrasive additive deposits.
• Pump seals last longer
• Hoses and gaskets won’t deteriorate

Low system pressure puts less stress on hoses and cooling
system plumbing.

Evans Waterless HDTC contains an inhibitor that lowers the
toxicity of ethylene glycol.

Disposal and replacement costs are reduced or eliminated.
•
•

80% of coolant produced goes to refill or top off leaking cooling systems.
Only 12% of all antifreeze produced in the United States is recycled each year.
Fuel savings mean less carbon dioxide emissions:
• A 3% fuel savings = 5,550 less lbs of CO2 emissions annually.*
• A 5% fuel savings = 8,800 less lbs of CO2 emissions annually.*
*Average of 50,000 miles per year , 6 mpg (@ 22.2 lbs of CO2 emitted per gallon of diesel).

A blend of glycols, soluble additives, and no water.

Boiling point: 375o F, freezing point: <-70o F.

Low conductivity – no “battery effect”.

HDTC is a lifetime coolant if it does not become
contaminated with water.

Reduced Toxicity
What is Good about Water in a Coolant?
Water has been the choice for cooling engines for over
100 years for very good reasons:
1. Water is cheap.
2. Water is available.
3. Water has superior thermal conductivity
- in its liquid state.

The low boiling point of water (212o F to 220o F) becomes the
failure temperature of traditional cooling systems.

Water is corrosive and promotes electrolysis between
dissimilar metals within the cooling system.

Localized boiling causes vapor pockets that interrupt heat
transfer; water retains just 4% of it’s thermal conductivity
when it changes to vapor.
The energy that it takes to maintain coolant temperatures below
the boiling point of water is a huge waste of fuel.
Thermal Conductivity Comparison
Energy is consumed
to keep coolant
temp below boiling
point and prevent
vaporization.
Evans HDTC
removes the
barrier, saving
energy and fuel.

An engine operating temperature of 230o F is more than
100o F less than the boiling point of Evans HDTC.

Evans Waterless HDTC decreases formation of vapor.
• In the case of water based coolants, the glycol component of the
vapor condenses readily, leaving water vapor.
• The temperature at which water vapor condenses is the boiling point
of water, not the boiling point of water based coolants.
• Heat transfer is not interrupted by insulating layers of water vapor.
With Evans HDTC
the boiling point of water is no longer a limitation.
Coolant Failure Temperatures
Typical coolant operating temperatures are near the failure temperatures of water-based
coolants (bottom curve) but are much colder than the failure temperatures of HDTC (top curve).

With Evans HDTC, the huge separation between operating
temperature and coolant boiling point unlocks a reserve
capacity.
•
•
The reserve capacity increases the engine’s capability to operate safely at higher
temperatures, without introducing thermal stress.
Under high thermal stress conditions, Evans HDTC will run warmer but the
cooling system will not fail; metal temperatures remain under control.
 Cooling system continues to function after shut down:
• No after boil.
• No increase in system pressure.
• Engine can be restarted at any time.

There are thousands of successful conversions worldwide.

Most of these installations answer acute engine cooling
problems that have defied solution by conventional
coolant means.

Evans waterless coolants offer solutions that save money
and enhance performance.
Evans Waterless Heavy Duty Thermal Coolant
Proven Economic, Environmental, and Performance Advantages!
For More Information:
Evans Cooling Systems, Inc.
1 Mountain Rd. Suffield, CT 06078
860-668-1114
Mike Tourville, Marketing Director
[email protected]
Mark Stone, National Sales Manager
[email protected]
Richard Mamuszka, Product Development
[email protected]
Engineering Office
255 Gay St., Sharon, CT 06069
860-364-5130
Tom Light, Chief Engineer
[email protected]