Technology / Research

Our History

More TMPG (Ton Miles Per Gallon), LLC was formed as a sustainable energy efficiency solution for the transport refrigeration industry. The company became the exclusive national distributor of Cold-Plus® in November 2020.

 

Cold-Plus® is a patent pending refrigeration treatment that reduces fuel consumption 10% to 35% [depending on the age of the unit treated and number of hours in service] by removing “oil fouling” and increasing lubricity within the cooling system. It is a non-corrosive, non-toxic, environmentally friendly product that also extends the life of a refrigeration unit 20%-25%. The increased efficiency of a refrigeration unit treated with Cold-Plus® has been documented by dozens of independent tests and 25,000+ successful applications without a single failure or warranty claim.

 

Treating a transport refrigeration compressor with Cold-Plus® will:

  • Permanently remove oil fouling that reduces heat transfer.
  • Increase refrigerant flow which increases efficiency.
  • Reduce friction in the compressor, which reduces noise & wear and extends compressor life.
  • Reach set points faster with improved heat transfer.
  • Reduce compressor run time, thereby reducing the amount of fuel required.
  • Reduce carbon emissions.

Applications

The transport refrigeration industry includes over-the-road semi-tractor refrigerated trailers, local refrigerated trucks, refrigerated rail cars, refrigerated shipping vessels, cold storage warehouses, and transport refrigeration repair facilities.

Reefer Trucks

There are currently Five Hundred Thousand [500,000] over-the-road semi-tractor refrigerated trailers [reefers] in service in the United States. The majority of these units run in a “start – stop” mode. When the temperature set point is reached, the unit stops running. When the temperature increases above the set point, the unit begins to run. The decrease in fuel consumption is most noticeable on start – stop units. Cold-Plus® reduces the number of hours the unit needs to run to maintain the set point. The average reduction in fuel consumption for start – stop units will range from 10% – 35%, depending on the age of the unit and the number of hours in service. This reduction of run time also increases the life of the unit. It is not uncommon for older units with many hours of service to experience fuel savings in excess of 30%, and to enjoy several extra years of productivity.

Reefer units that operate in a “continuous run” mode will not experience the same fuel savings noted above, as the motor which powers the refrigeration unit is always running and consuming fuel. What is noticed following a Cold-Plus® treatment is the reduction in the amount of time the refrigeration unit operates at high speed. Running at a lower speed will extend the life of the continuous run unit, deferring the capital expense of replacement.

Refrigerated Rail Cars / Shipping Vessels

The same principles noted above for ‘reefer’ trailers can be applied to rail cars and shipping vessels. Refrigeration units running in start stop mode will experience significant fuel savings and extended life. Refrigeration units operating in a continuous cycle mode will experience longer life and deferred capital replacement costs.

Climate-Controlled Storage Industry

Climate-controlled storage is an associated industry closely tied with transport refrigeration in the form of cold storage food and agricultural warehouses. The specific nature of this type of commercial facility makes it possible to predict an average 15% reduction in electrical consumption for climate-controlled storage units treated with Cold-Plus®. The treatment is compatible with all refrigerants except ammonia. A January 2017 study of a refrigerated warehouse in Dubai showed a reduction in energy consumption of 21.9%.

(Click Here to see report).

The caveat in this industry is to note Cold-Plus® is not compatible with any ammonia refrigerant. It is estimated that 30% to 40% of all cold storage warehouses are cooled by an ammonia refrigerant.

Cold-Plus Case Studies

Energy Cost Reduction

“an estimated peak demand savings of 86 kW, a 15.1% reduction. This translates to an energy cost savings of $16,176.”

Return On Investment

“The return on investment …based on the 8% reduction in consumption and the Cold-Plus injection cost is less than 7 months.”

Oil Fouling Removal

“The increased heat transfer and refrigerant flow restored much of the degraded cooling capacity of a 12 year old Trane 20-ton Voyager A/C unit.”

Run-Time Reduction

“compressor run-time to achieve the set peak performance system temperatures was reduced by 40.11%

Pool Boiling Improvement

“the treatment is found to enhance pool boiling attributes of refrigerant”

Maintenance Cost Reduction

“reduced load on the unit after treatment with Cold-Plus also results in longer operational lifespan and fewer service calls.”

Emissions Reduction

“CO2 [Carbon Dioxide] emissions reduction: 8% / NOX [Nitrogen Oxide] emissions reduction: 8% / SOX [Sulfur Oxide] emissions reduction: 10%”

Start-Up Amp Reduction

“What the results show is a virtual elimination of the amp spike during start-up.”

Extended Unit Life

“The study clearly shows … the decreased KWH for each of these units. Because of the polymer this should continue for the life of the unit”

Increased Lubricity

“the treatment is found to enhance wear lubricity to compressor operations.”

September 2020 "Reefer" Test

September 5, 2020 was the beginning day of an independent six-day test to prove the effectiveness of Cold-Plus in a transport refrigeration unit. The unit tested is owned by KC Refrigeration Solutions. (Click here to see Dustin Briggs Testimonial Video.) The 2006 53-foot Carrier unit had 27,328 in service hours at the beginning of the test. Prior to starting the test an electric heater was placed in the rear of the empty trailer to simulate a load. The heater ran continuously on a high setting throughout the test. It was checked each morning at 9:00 to confirm it was running.

The refrigeration unit was started at 9:00 AM after the fuel tank had been topped off. The set point was minus five degrees in a start stop mode. At the end of twenty-four hours the fuel tank again was topped off and the amount of fuel consumed was computed. At the end of the second twenty-four hours period the refrigeration unit had run a total of thirty-nine hours and consumed 39.32 gallons of fuel. Average daily run time was 19.5 hours and average fuel consumption was one gallon per hour.
Cold-Plus was installed at 9:00 on the morning of the third day. The same procedure above was followed. Each morning the heater was checked to confirm its operation; the fuel tank was topped off and fuel consumed was computed; and the hours of run time were noted. At the end of the sixth day, four days after Cold-Plus had been installed, the run time was fifty-one hours and fuel consumed was 51.4 gallons. Average daily run time was reduced to 12.75 hours and average fuel consumption remained at one gallon per hour.
What the test means: when the refrigeration unit is in a start stop mode, fuel consumption remains at one gallon per hour. However, the compressor run time, because of the Cold-Plus treatment, was reduced 6.75 hours per day, saving 6.75 gallons of fuel daily. If this unit were to operate 350 days a year, there would be a reduction of 2,362.5 gallons of fuel. Using $2.00 per gallon for illustration, $4,725 is the annual savings for this ONE-TIME TREATMENT, which is good for the life of the compressor.

Click here to see full test report.
Click here to see bio of Dr. Peter Jenkins, world’s foremost authority on Cold-Plus.

Carbon Emissions

The mobile refrigeration industry includes over-the-road semi-tractor refrigerated trailers, local refrigerated trucks, refrigerated rail cars and refrigerated shipping containers. For the purposes of this summary, only the over-the-road semi-tractor refrigerated trailers will be reviewed, as independent testing results are available for this branch of transport refrigeration repair and services. There are currently Five Hundred Thousand [500,000] over-the-road semi-tractor refrigerated trailers [reefers] in service in the United States. Reefer units are cooled with a refrigerated unit powered by diesel fuel. Independent tests done on reefer units treated with Cold-Plus® showed a decrease in fuel consumption between 10% and 35%. Depending on the price of diesel fuel and hours of service, this one-time treatment will provide fuel savings to a refrigerated trucking company of $1,500 to $3,500 per refrigerated trailer – annually. The average return on investment for the cost of a Cold-Plus treatment to a refrigerated trucking company is three to nine months. Whether the refrigerated products move by road, rail or marine, Cold-Plus™ will improve fuel efficiency and increase compressor and unit life.


Treating a refrigeration compressor with Cold-Plus™ will:


  • Permanently remove the oil fouling that reduces heat transfer.
  • Increase refrigerant flow which increases efficiency.
  • Reduce friction in the compressor, which reduces noise & wear and extends life of compressor.
  • Reach set points faster with improved heat transfer.
  • Reduce compressor run time, thereby reducing the amount of fuel required.
  • Reduce carbon emissions.

 

For each gallon of diesel fuel burned, 22.38 pounds of CO2 are produced [U.S. Energy Information Administration]. Mobile refrigeration units consume .75 to 1.0 gallons of diesel fuel per hour of operation, depending on the age of the unit. Using .875 gallons per hour as an average, and assuming 3,000 hours of run time yearly, annual diesel consumption is 2,625 gallons, which generates 58,748 pounds of CO2 – per refrigerated trailer.

 

  • A single mobile refrigerated trailer produces nearly 30 tons of CO2 annually!

 

Test results showing a decrease in fuel usage of 10% to 30% will produce a reduction in CO2 emissions of 3 to 9 tons per year, per refrigerated trailer. Older and less sophisticated units will be at the high end of both fuel savings and carbon emission reductions, while newer more sophisticated units will perform at the low end. In either scenario, the installed cost of Cold-Plus® is normally recouped within 12 months, and in many instances the ROI is 1,000%, depending on the age of the refrigeration unit.

Market Acceptance

Ironically, the industry one would expect to embrace Cold-Plus® is the industry which has, for the most part, stringently opposed the use of this product. The manufacturers of refrigeration units have opposed Cold-Plus® on one of two grounds:

  1. The product has been lumped into the category of other refrigeration products introduced in the industry over the past several decades – products which were by composition either corrosive, toxic or in some fashion injurious to the treated unit, resulting in warranty claims; or,
  2. There has been a realization that Cold-Plus® works and is beneficial to the treated refrigeration unit and therefore extends the life of the treated unit 20% – 25%, causing a significant disruption in the manufacturers’ new equipment sales cycle and planned equipment obsolescence.

Opposition to Cold-Plus® for the first reason is due to the manufacturers being misinformed or uninformed. Opposition for the second reason is putting excessive self-interest before the needs of the end user.