Transportable Heavy Duty Emissions Testing Laboratory and Research Program
Transportable Heavy Duty Emissions Testing Laboratory and Research Program
The objective of this program was to quantify the emissions from heavy-duty vehicles operating on alternative fuels or advanced fuel blends, often with novel engine technology or aftertreatment. In the first year of the program West Virginia University (WVU) researchers determined that a transportable chassis dynamometer emissions measurement approach was required so that fleets of trucks and buses did not need to be ferried across the nation to a fixed facility. A Transportable Heavy-Duty Vehicle Emissions Testing Laboratory (Translab) was designed, constructed and verified. This laboratory consisted of a chassis dynamometer semi-trailer and an analytic trailer housing a full scale exhaust dilution tunnel and sampling system which mimicked closely the system described in the Code of Federal Regulations for engine certification. The Translab was first used to quantify emissions from natural gas and methanol fueled transit buses, and a second Translab unit was constructed to satisfy research demand. Subsequent emissions measurement was performed on trucks and buses using ethanol, Fischer-Tropsch fuel, and biodiesel. A medium-duty chassis dynamometer was also designed and constructed to facilitate research on delivery vehicles in the 10,000 to 20,000lb range. The Translab participated in major programs to evaluate low-sulfur diesel in conjunction with passively regenerating exhaust particulate filtration technology, and substantial reductions in particulate matter were recorded.
Document information
Transportable Heavy Duty Emissions Testing Laboratory and Research Program
2008
90 pages
Report
No indication
English
Environmental Studies , Fuels , Engine Studies, Energy Related , Road Transportation , Reciprocation & Rotating Combustion Engines , Air Pollution & Control , Alternative fuels , Exhaust emissions , Research programs , Air pollution , Natural gas , Synthetic Fuels , Aldehydes , Buses , Biodiesel , Blowers , Carbon dioxide , Closed-loop control , Dilution , Dynamometers , Engines , Ethanol , Methanol , Particulates , Sulfur
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