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Carrier cuts gen-set fuel use by third

Amsterdam, Netherlands:  Carrier Transicold introduced its newest PowerLine generator sets that use about a third less fuel compared to prior standard units at Intermodal Europe.

The generator sets deliver improved performance and run cleaner, achieving compliance with 2013 Tier 4 emissions standards from the US Environmental Protection Agency.

“Taking a holistic view of the system to achieve emissions compliance, Carrier developed a suite of technologies known as ecoForward, resulting in a significant overall performance boost,” says Charu Mahajan, generator set business manager, Carrier Transicold.

“In short, the generator sets do much more, while consuming less fuel.”

Carrier Transicold’s PowerLine diesel generator sets provide uninterrupted power to operate 460-volt ISO container refrigeration systems when used overland in intermodal applications, and are available in models that either mount underneath a container chassis or clip to the front of a refrigerated container unit.

Carrier's T4 generator sets do much more, while consuming less fuel: Charu Mahajan, generator set business manager

The 2013 models introduce as standard fuel-saving technology that automatically switches the generator set between two speeds via a simple black box controller as well as an optional engine emissions system for compliance with the ultra-low emissions standard of the California Air Resources Board (CARB).

The new PowerLine units also weigh about 14kg (30 lbs) less than the previous units. Common to PowerLine systems with ecoForeward  technologies is a 2.2-litre diesel engine based on Carrier Transicold’s established engine line. “Emissions compliance was a given,” Mahajan says.

“Providing customers with a familiar, reliable large displacement engine while increasing system efficiency was key. Equally so, was improving fuel economy to reduce total operating costs for our customers.”

While actual fuel consumption depends on real-world conditions, cargo and the specific refrigeration unit used, Carrier’s preliminary testing shows that the fuel savings on the new models ranges from 32 to 34%, in test situations at 38 degrees Celsius (100 degrees Fahrenheit) ambient, resulting in relatively short payback periods.

With diesel fuel prices hovering around US $4.00 per gallon, a fleet of 250 new PowerLINE generator sets, each operating 2,000 hours, could save in excess of $300,000 per year. The savings comes in large part from standardisation of FuelWise functionality, the proven dual-speed capability that was first introduced as an option in 2008. Incremental efficiency gains also come from the 15 kW custom-designed generator. Unlike conventional generators, the ultra-high efficiency PMG provides approximately 94 percent efficiency, reducing the engine power required and further contributing to the overall fuel efficiency of the generator set.

Performance gains from the application of ecoForard technologies means 20 percent less engine power is required, which puts the engine within the scope of EPA’s Tier 4 standard for non-highway engines rated at 8 to 19 kW (11 to 25 horsepower). As carbon footprint is commensurate to fuel consumption, the new PowerLINE units offer greenhouse gas reductions of up to 34 percent relative to previous standard units.

Carrier’s new emissions system option reduces emissions well beyond EPA Tier 4 requirements for the engine class and provides compliance with CARB’s ultra-low diesel emission requirement, which affects units operating in or through California beyond seven years.