Evaluation of exhaust emissions data for diesel engines used in underground mines. Technical report
Exhaust emissions data for diesel engines used in underground mines was evaluated. Diesel exhaust pollutants evaluated were nitrogen oxide (10102439) (NO), carbon monoxide (630080) (CO), and carbon dioxide (124389) (CO2). The pollutants were collected from 4,6,8, and 12 cylinder indirect injection engines prior to installation of any emission control device. NO emissions ranged from 3.8 to 6.0 grams per brake horsepower hour (gm/bhphr). The lowest NO emissions were from the 6 cylinder engine, and highest emissions were produced by the 8 cylinder engine. The number of engine cylinders had only a small effect on emission concentrations. CO2 exhaust emissions ranged from 580 to 812gm/bhphr. Average CO2 emissions from the turbocharged aftercooled (TA) engines were 21 percent lower than from the naturally aspirated (NA) engines, and the methane (74828) atmosphere slightly reduced CO2 emissions. CO emissions ranged from 0.8 to 2.4gm/bhphr. CO emissions from the TA engine were much lower than CO emissions from any of the NA engines. The number of engine cylinders had a slight effect on CO emissions. The author recommends that since exhaust emission concentrations vary among diesel engines with similar fuel injection systems, air intake systems, and numbers of cylinders, several makes and models of engines should be used when testing the effectiveness of emission control devices.
- Research Organization:
- National Inst. for Occupational Safety and Health, Rockville, MD (USA)
- OSTI ID:
- 5766366
- Report Number(s):
- PB-81-225377
- Country of Publication:
- United States
- Language:
- English
Similar Records
A hydrogen engine for underground mining vehicles
Control technology for diesel equipment in the underground mining environment - a review of selected topics. Final report 23 August 1978-31 January 1979
Related Subjects
016000 -- Coal
Lignite
& Peat-- Health & Safety
33 ADVANCED PROPULSION SYSTEMS
330102 -- Internal Combustion Engines-- Diesel
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION
ALKANES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
DIESEL ENGINES
ECOLOGICAL CONCENTRATION
EFFICIENCY
ENGINES
EQUIPMENT
EVALUATION
EXHAUST GASES
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
METHANE
MINING
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
POLLUTION
POLLUTION CONTROL EQUIPMENT
UNDERGROUND MINING
USA
WASTES