| Author | Panya Warapetcharayut |
| Call Number | AIT Thesis no. EV-94-33 |
| Subject(s) | Waste gases
|
| Note | A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science, School of Environment, Resources & Development |
| Publisher | Asian Institute of Technology |
| Abstract | Thailand is facing severe air pollution in Bangkok, which resulted from motor vehicle
emissions. The number of motorcycles in Bangkok has increased sharply as a result of traffic
congestion, which has been recognized as an environmental problem that cause possible harmful
health effects. More than 80% of motorcycles in Thailand are two-stroke motorcycles.
In this study, fifteen two-stroke motorcycles from four trade names; YAMAHA,
KAWASAKI, SUZUKI and HONDA were tested. Both new and old motorcycles having a
cylinder capacity size of more than 125 cc. were tested. This study is an attempt to compare the
pollutants level of exhaust gases by using two different types of lubricating oil. Five major
primary pollutants were considered : CO, HC, NOx, Pb and white smoke.
The percent reduction of average exhaust gas concentrations at idle conditions from low
to high in terms of exhaust gases are NOx, HC and CO; in terms of trade names are Y AMARA,
HONDA, SUZUKI and KAWASAKI when compared both using regular lubricating oil [no
Polyisobutylene (PIB)] and low smoke lubricating oil (with PIB).
The percent reduction of average emission load on chassis dynamometer from low to high
are CO, NOx, and HC when compared both using the regular lubricating oil (no PIB) and the low
smoke lubricating oil (with PIB). The white smoke was significantly decreased from average
30.2% to 9.6% or 68.21 % reduction when changed from using the regular lubricating oil (no PIB)
to low smoke lubricating oil (with PIB).
The human health effects of exhaust gas emissions were also reviewed in this study. |
| Year | 1994 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Environmental Engineering (EV) |
| Chairperson(s) | Samorn Muttamara |
| Examination Committee(s) | Su, Wei-Han ;Stoll, -Ing. Uwe
|
| Scholarship Donor(s) | Royal Thai Government |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1994 |