Cummins announces dual-fuel QSK engines

Posted: August 13, 2012 in Industrial, Mining, Oil & Gas, Power Generation, Rail

Dual-fuel QSK50 will begin production in mid-2013.

Cummins has announced plans to produce dual-fuel engines from 800 hp to 3500 hp for high horsepower markets. The first in the product portfolio, the Tier 2 QSK50 for oil and gas well servicing applications, will begin production mid-year 2013, with other QSK engines to follow.

Cummins high horsepower dual fuel engines will operate with common integrated controls, making a seamless transition from diesel fuel to dual-fuel operation. By default, an engine will run on diesel fuel until the operator selects the option on the control panel to run the engine on a blend of diesel and natural gas fuel. The engine will switch to dual-fuel mode and automatically select the substitution rate for the operator.

“This technology investment by Cummins further demonstrates our position as a technology leader in the high horsepower markets,” says Mark Levett, vice president of high horsepower engine business.

In traditional operating conditions, a maximum substitution rate of diesel fuel with natural gas of 70 percent can be expected, with average substitution rates of greater than 50 percent, depending on application and duty cycle.

The Cummins dual-fuel solution will be applicable to both new QSK family engines and as a retrofit on existing QSK family engines in the field today.

The rapid expansion and abundance of natural gas in many areas of the world has driven a dramatic cost advantage of natural gas over diesel fuel. The ability to substitute diesel fuel with natural gas drives down the total cost of ownership of equipment.

“In the oil and gas industry, variable-speed pressure pumping applications traditionally consume a lot of fuel due to the rugged duty cycle of the application. These customers can expect to see significant fuel savings from the Cummins dual-fuel solution and will typically see a return on capital investment within the first six months of operation,” said Erik Drewry, director of oil and gas business.

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