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U.S. Army Awards Research Contract for Next Generation CO2 Refrigeration System

U.S. Army Awards Research Contract for Next Generation CO2 Refrigeration System

S-RAM Dynamics to produce state of the art refrigeration system using new CO2 energy recovery compressor

NASHVILLE, Tenn. (February 22, 2016) – The U.S. Army Natick Soldier Systems Center (NSSC) has awarded S-RAM Dynamics a Small Business Independent Research (SBIR) Phase 2 contract for $1 million to build and test a mobile refrigeration system demonstration prototype using the new S-RAM energy recovery compressor that utilizes the natural refrigerant carbon dioxide (CO2). The next generation CO2 refrigeration system will reduce energy consumption of the Army’s mobile refrigeration assets in excess of 50 percent, decreasing fuel consumption for forward operating bases without using synthetic refrigerants. The mobile CO2 demonstration refrigeration system will be installed on the Army’s Multi-Temperature Refrigerated Container System (MTRCS).

The high-performance S-RAM CO2 energy recovery compressor is the enabling technology that makes HVAC, refrigeration and heat pump systems significantly more efficient and climate friendly. The heavily patented energy recovery compressor integrates an axial piston compressor with an opposed axial piston expander to recapture normally lost energy and boost system performance. The energy recovery compressor will be applicable to the millions of refrigerated transport containers that travel road and rail across the nation and world, as well as millions of stationary refrigeration units. This technology is also being used for an external heat recovery engine to generate power as well as an axial internal combustion engine for unmanned systems, such as drones.  The S-RAM CO2 energy recovery compressor will be manufactured in Tennessee.  “We are pleased the Army recognized the impact of our proprietary CO2 compressor and expander technology to reduce energy consumption while eliminating harmful greenhouse gas emissions,” said S-RAM President Lee Jestings.This demonstration contract will help accelerate our commercialization efforts for a broad range of refrigeration and heat pump products.”

The S-RAM compressor technology is being developed with the assistance of Purdue University at the Ray W. Herrick laboratories, led by world-renowned compressor expert Professor Eckhard Groll.  “We’re excited to be part of testing S-RAM’s technology and to assist S-RAM with commercializing the energy recovery compressor along with the mobile CO2 refrigeration system,” said Dr. Groll, Reilly Professor of Mechanical Engineering at Purdue University. “This cutting-edge technology has the potential of setting a new standard for innovative clean tech products.”

About S-RAM Dynamics:

S-RAM Dynamics, based in Nashville, Tenn., is a privately-held energy technology company focused on commercializing next generation, energy-efficient technologies including natural refrigerant HVAC (heating, ventilation, and air conditioning) applications, waste heat to power engines and power generation axial engines.  The company has 47 patents for its variable power conversion technology and three patents pending. For more information on S-RAM Dynamics, please visit http://www.s-ram.com.

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Development of natural refrigerant heat pump receives grant from U.S. Department of Energy

New heat pump technology reduces energy consumption by 50 percent

NASHVILLE, Tenn., August 26, 2013 – Part of a Department of Energy (DOE) project to reduce energy bills and greenhouse gas emissions, S-RAM Dynamics has been awarded a grant to help commercialize a new heat pump that does not use any high global warming refrigerants.

A highly energy efficient technology, the S-RAM heat pump will also reduce energy consumption for commercial and industrial customers by more than 50 percent when compared to other common refrigeration and heating systems.  The system is being developed in coordination with Purdue University and performance testing will be done at DOE’s Oak Ridge National Laboratory, a leading innovator of heat pump technology.

“This is a big award for us. Energy efficiency and greenhouse gas emissions are major concerns, and the DOE recognized the potential impact of the new heat pump using our company’s proprietary compressor and expander technology,” said S-RAM President Lee Jestings.

Assistant Secretary for Energy David Danielson announced the selection of the S-RAM technology as part of the “Next Generation Energy Efficient Buildings Technologies” program.  According to Danielson, “Energy efficient technologies – from improved heating and cooling systems to better windows and lighting – provide one of the clearest and most cost-effective opportunities to save consumers money while curbing greenhouse gas emissions.”

Heat pumps offer the most energy-efficient way to heat and cool buildings in many applications.  They do this by removing or adding heat from the desired area or application using other natural renewable heat sources like the ground, air and water.  Most heat pumps use hydrofluorocarbons (HFCs) to accomplish this, but S-RAM’s heat pump replaces these chemicals with a natural refrigerant, eliminating any greenhouse gas emissions.

“We are excited to be part of testing S-RAM’s technology and to assist them with commercializing this heat pump,” said Dr. Eckhard Groll, the Reilly Professor of Mechanical Engineering at Purdue University.  “This technology can eliminate the use of high global warming refrigerants and improve energy efficiency while providing comfortable and productive indoor environments for occupants.”

About S-RAM Dynamics:

S-RAM Dynamics, based in Nashville, Tenn., is a privately-held energy technology company focused on commercializing next generation, energy-efficient technologies including natural refrigerant HVAC (heating, ventilation, and air conditioning) applications, waste heat to power engines and power generation engines.  The company has 47 patents for its variable power conversion technology.

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Frost & Sullivan Recognizes Pioneering S-RAM Technology

Palo Alto, Calif. — Based on its recent analysis of the power supplies market, Frost & Sullivan recognizes Sanderson Engine Development, LLC (SED) with the 2008 North American Frost & Sullivan Award for Emerging Company of the Year. By designing the revolutionary Sanderson Rocker-Arm Mechanism (S-RAM), SED has successfully created a paradigm shift in the industry, and introduced a technology with disruptive market potential. The S-RAM is an emerging core technology for an entirely new generation of engine-driven pumps, compressors, generators, and any other device for which current power systems deploy multiple components (as in a crankshaft engine and a swash plate hydraulic pump) to transfer power.

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S-RAM Receives New Technology Patents

Upton, MA, May 22, 2007 – Sanderson Engine Development Company, a developer of ultra high-efficiency engine technology, has announced the receipt of three new patents by the U.S. Patent and Trademark Office. The patents cover a highly innovative piston assembly, an associated piston connecting joint, and a variable compression ratio mechanism. The piston joint and associated components are core components of the Sanderson Rocker Arm Mechanism (S-RAM) invented by Robert and Albert Sanderson.

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LSHT Motor Tests Show Impressive Performance

Palo Alto, CA — Hydraulics & Pneumatics Magazine:

The latest tests of a recent invention, the Sanderson rocker-arm mechanism (SRAM), Figure 1, show advantages for this method of converting reciprocating motion into rotary motion. The low frictional losses of the SRAM pay off in high torque and overall efficiency in hydraulic devices, and may lead to lower heat generation and higher starting torque than with conventional motors and pumps.

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Pump Cuts Friction By Eliminating Side Loads

Palo Alto, CA — Hydraulics & Pneumatics Magazine:

Based on its recent analysis of the power supplies market, Frost & Sullivan recognizes Sanderson Engine Development, LLC (SED) with the 2008 North American Frost & Sullivan Award for Emerging Company of the Year. By designing the revolutionary Sanderson Rocker-Arm Mechanism (S-RAM), SED has successfully created a paradigm shift in the industry, and introduced a technology with disruptive market potential.

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Fluid Power Targeted for New Pump-Motor Design

Palo Alto, CA — Hydraulics & Pneumatics Magazine:

Based on its recent analysis of the power supplies market, Frost & Sullivan recognizes Sanderson Engine Development, LLC (SED) with the 2008 North American Frost & Sullivan Award for Emerging Company of the Year. By designing the revolutionary Sanderson Rocker-Arm Mechanism (S-RAM), SED has successfully created a paradigm shift in the industry, and introduced a technology with disruptive market potential.

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