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GMZ 1,000W Diesel TEG to be Tested in Bradley Fighting Vehicle

GMZ TEGGMZ Energy has successfully demonstrated a 1,000W high-temperature thermoelectric generation (TEG) system designed for diesel engine exhaust heat recapture to increase fuel efficiency and lower costs.

This announcement follows GMZ’s June demonstration of its 200W diesel TEG. The company integrated five 200W TEGs into a single 1,000W diesel engine solution that directly converts exhaust waste heat into electrical energy.

With this demonstration, GMZ has successfully reached the next milestone in the $1.5 million vehicle efficiency program sponsored by the (US Army Tank Automotive Research, Development and Engineering Center) TARDEC program and administered by the Department of Energy.

The next phase is to being testing in a Bradley Fighting Vehicle, according to Cheryl A. Diuguid, CEO of GMZ.

The company also plans to implement its low-cost TEG technology into a broad array of commercial markets, including long-haul trucking, heavy equipment, and light automotive, Diuguid says.

GMZ’s TEG demonstrated over 1,000 watts of continuous output power with no degradation in performance over the test period. To simulate vehicle performance, the unit was tested by connecting directly to the exhaust of a 15-liter V8 diesel engine inside an engine test cell. At approximately 80 liters (2.8 ft3), GMZ’s TEG is less than one-third of the TARDEC program’s specified size requirement.

With battlefield fuel costs ranging from $40 to $800 per gallon, the US military is especially interested in thermoelectric technologies, which are physically robust, have long service lives, and require no maintenance due to their solid-state design.

GMZ says its patented half-Heusler material is suited for military applications. The 1,000W TEG features enhanced mechanical integrity and high-temperature stability because of GMZ’s patented nanostructuring approach. GMZ’s TEG also enables silent generation, muffles engine noise, and reduces thermal structure.

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