Clean diesel technology upgrades for large tug and switcher locomotive engines cost only $4,379 to $15,201 per ton of nitrogen oxides (NOx), compared to more than $30,000 per ton of NOx for many other ...
One of the greatest practical wastes in railroading arises from burning fuel in switching yard engines to keep steam up continually, although the engines are only occasionally used. This loss may now ...
Technologies that could equip a future generation of Pratt & Whitney geared turbofan (GTF) engines, including hybrid-electric and steam-injection systems to slash greenhouse gas emissions, are to be ...
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