ทางเลือกเชื้อเพลิงที่เหมาะสมสำหรับทดแทนน้ำมันดีเซลในยานยนต์

Suitable Fuel Alternatives to Diesel Oil in Vehicles

Name: มิ่งขวัญ วิเชียรมณี

Organization : มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

keyword: เชื้อเพลิงทดแทน

Abstract: The objective of the study was to assess the fmancial and econoinic feasibilities of using LPG or CNG to substitute diesel oil for pick-up truck; in case of converted compression ignition engine to spark ignition engine f~ed by LPG (CI-SI-LPG), modified compression ignition engine fued by LPG (CI-LPG), modified compression ignition engine fired by CNG (CI-CNG) , in comparison to a conventional compression ignition engine (CI). For bus, NGV-BENZ and NGV-MAN natural gas engines are compared with diesel erghe ( DIESEL- BENZ ). Both of financial and economic analysis for the pick-up truck, present worths of the total costs of CI-SI-LPG and CI-LPG were higher than CI. The present worth of total cost of CI-LPG was lower than CI-SI-LPG. Financial analysis indicates suitable costs of LPG was 2.75 Baht per litre, a decrease of 3.65 Baht per litre for case of CI-SI-LPG and cost of LPG was 4.35 Baht per litre, a decrease of 2.05 Baht per litre for case of CI-LPG. Economic analysis indicates suitable costs of LPG was 0.32 Baht per litre, a decrease of 4.35 Baht per litre for case of CI-SI-LPG and cost of LPG 1.68 Baht per litre, a decrease of 2.99 Baht per litre for case of CI-LPG. Present worth of using CNG as fuel substitute for diesel oil (CI-CNG) was lower than CI. If government wishes to substitute diesel oil with LPG for decreasing diesel oil, diesel oil smuggling and SPM, tax on LPG should bereduced. For bus, comparison of the present worth of total cost was made between using CNG as a kel substitute ( NGV-BENZ and NGV-MAN ) and using diesel oil (DIESEL-BENZ). Results of financial analysis shows that present worth of total cost ofDIESEL-BENZ was the lowest and present worth of total cost of NGV-BENZ was lower than NGV-MAN. The result of economic analysis is the same as the financial analysis but present worth of total cost of NGV-MAN was lower than that of NGV-BENZ. However, it should be noted that maintenance cost of buses using CNG was much higher than that ofthe bus using diesel oil. If the maintenance cost is not included, results revealed by financial and economic analysis that present worth of total cost for NGV-MAN was the lowest and NGV-BENZ was also lower than DIESEL-BENZ. More accurate assessment of the maintenance cost of NGV should be further attempted.

มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

Address: กรุงเทพมหานคร

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

Name: ปรีดา วิบูลย์สวัสดิ์

Role: อาจารย์ที่ปรึกษา

Name: วารุณี เตีย

Role: อาจารย์ที่ปรึกษา

Created: 2541

Issued: 2007-01-04

Modified: 2553-11-27

วิทยานิพนธ์/Thesis

ISBN: 9746243047

CallNumber: EM123

tha

DegreeName: วิทยาศาสตรมหาบัณฑิต

Level: ปริญญาโท

Descipline: เทคโนโลยีการจัดการพลังงาน

Grantor: มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี

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1	EM 123.pdf	1.14 MB	49	2021-01-06 12:41:31
2	EM 123ab.pdf	131.92 KB	32	2021-01-06 12:41:41
3	EM 123ab.txt	2.59 KB	64	2021-01-06 12:42:06

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