การประเมินผลทางด้านเศรษฐศาสตร์และสิ่งแวดล้อมของรถโดยสาร ขสมก ที่ใช้ก๊าซธรรมชาติเป็นเชื้อเพลิง

An Economic and Environmental Evaluation of Natural Gas Fuelled BMTA Bus Fleet

Name: วารุณี พุฒิธนะสุนทร

Organization : สถาบันเทคโนโลยีพระจอมเกล้าธนบุรี

Name: Warunee Puttitanasuntorn

keyword: รถโดยสารประจำทาง ขสมก

; ก๊าซธรรมชาติ

Abstract: The objective of the study was to assess the economic andenvironmental aspects of BMTA buses using Natural Gas as fuelcompared with those using diesel fuel.Economically, the study of fuel consumption fn the fleettest indicated that the fuel consumption of NGVs was slighlylower than that of diesel buses. In traffic jam conditionstraffic jam, the NGVs had lower fuel consumption in terms ofbaht/km. than the diesel buses. However in the condition ofconstant speed (60-80 km./hr.), the fuel consumption of dieselbuses was comparatively lower. And the economics analyzing by usingthe change of annual total cost to the change of the settingvariables ; buses price, fuel price and maintainance fee; foundthat the buses price is the most effective variables to thesensitivity of changing. Maintainance fee is the second one and thefuel price is the least effective for both NGV-MAN and NGV-BENZ. Thebuses that use diesel fuel, the maintainance fee and fuel pricehave almost the same sensitivety of change. When comparing insensitivity of variables change of any buses found that in thechanges of price NGV-BENZ will have the most sensitivity ofchange. The DIESEL-BENZ, DIESEL-MAN and NGV-NAN has the lesssensitivity of changes respectively. In the change of fuel price,DIESEL will have the most sensitivity of change and almost equal toDIESEL-HAN. NGV-HAN is the lesses one and NGV-BENZ will have theleast sensitivity of change. In the change of aaintainance feethe more effect to the sensitivity of change is NGV-MAN, NGV-BENZ,DIESEL-HAN and DIESEL-BENZ respectively.Environmentally, the inspection of pollutants, soot, andnoise level indicated that carbonmonoxide emitted from NGV-BENZ andDiesel-BENZ were not significantly different whereas the emissionfrom NGV-MAN was higher when being driven between lo-60 km./hr..Generally, the amount of nitric oxide emitted from NGV-BAN washigher than that from NGV-BENZ and Diesel-BENZ. At the range ofspeed of lo-60 km./hr., Diesel-BENZ emitted higher amounts of thenitric oxide higher than NGV-BENZ. The results also revealed thatthe amount of hydrocarbon emitted from NGVs was higher than thatemitted from diesel buses for the whole range of test conditions.The major fraction of hydrocarbon emitted from NGVs was methanewhich was not found in the diesel exhaust gas.The amount soot from NGVs was significantly lower thanthat from diesel buses. The maximum noise level measured in thepassenger area of NGVs was lower than that of diesel buses.

สถาบันเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร

Email: info.lib@mail.kmutt.ac.th

Name: สมชาย จันทร์ชาวนา

Role: อาจารย์ที่ปรึกษา

Name: พจนีย์ ขุมมงคล

Role: อาจารย์ที่ปรึกษา

Created: 2537

Issued: 2005-04-13

Modified: 2554-04-28

วิทยานิพนธ์/Thesis

ISBN: 9746212648

CallNumber: EV28

tha

DegreeName: วิทยาศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: เทคโนโลยีสิ่งแวดล้อม

Grantor: สถาบันเทคโนโลยีพระจอมเกล้าธนบุรี

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3	EV28ab.smi	2.8 KB	96	2020-02-20 12:02:49

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