HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

Emissions and demonstration of an emission control technology for small two-stroke utility engines.

Abstract
Small utility engines represent an important contribution to the emissions inventory and have been subjected to increasingly stringent regulations in recent years. For this project, a Tanaka two-stroke engine was tested in its original condition and with a modified fuel/oil injection system. The modified fuel/oil injection system applied to the Tanaka two-stroke engine resulted in significant emissions reductions of approximately 52% for carbon monoxide (CO), 70% for total hydrocarbons (THC), 70% for particulate matter (PM), and 67% for the regulated THC + nitrogen oxides metric. This technology met the California Air Resources Board's 2000 model-year regulations for all pollutants, with the exception of slightly higher PM emissions. Two additional two-stroke engines were tested under a new condition and after at least 100 hr of use to examine the effects of deterioration on in-use, two-stroke engines. For one engine, CO and PM emissions more than tripled after 162 hr of operation in the field, with smaller increases also observed for THC (20%). For the second engine, significant repairs were required throughout the 100 operating hours, which counteracted the effects of the emissions deterioration and resulted in lower CO and THC emissions.
AuthorsWilliam Welch, Thomas D Durbin
JournalJournal of the Air & Waste Management Association (1995) (J Air Waste Manag Assoc) Vol. 54 Issue 2 Pg. 200-6 (Feb 2004) ISSN: 1096-2247 [Print] United States
PMID14977321 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • Air Pollutants
  • Hydrocarbons
  • Vehicle Emissions
  • Carbon Monoxide
Topics
  • Air Pollutants
  • Air Pollution (prevention & control)
  • Carbon Monoxide (analysis)
  • Engineering
  • Equipment Design
  • Hydrocarbons (analysis)
  • Vehicle Emissions (analysis)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: