Emission Factor of Carbon Dioxide from In-Use Vehicles in Thailand

Nilrit, Sutthicha; Sampanpanish, Pantawat

doi:10.5539/mas.v6n8p52

Cited by 7 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1.1) CO 2 emission rates from HDD For the HDD with diesel, the CO 2 emission rate was 1,036.4-1,212.9 g km -1 with no significant difference but different vehicle speeds between diesel and NGV were significantly different at 20-40 and 40-80 km h -1 . This result is in accord with the results of previous studies [12][13], which reported that, compared to the proportion of O 2 and N 2 in the fuel, 50 % of the diesel emissions were CO 2 . The average CO 2 emission level was dependent on vehicle speed, as demonstrated by the following results: 1,290.6 ±96.7, 577.3±91.6 and 1,568.4±179.1 g km -1 at 0-20, 20-40 and 40-80 km h -1 , respectively.…”

Section: Results and Discussion 1) Co 2 Emission From Diesel Engine supporting

confidence: 93%

Comparison of CO2 Emissions from Vehicles in Thailand

2017

Self Cite

View full text Add to dashboard Cite

Emission of carbon dioxide (CO2), a greenhouse gas, from typical passenger vehicles in Thailand was investigated using a chassis dynamometer in the Automotive Emission Laboratory. The vehicle running method was controlled under the standard Bangkok driving cycle. CO2 emissions were measured at three different speeds for the following four vehicle types commonly used in Thailand: heavy duty diesel (HDD), light duty diesel (LDD), and light duty gasoline (LDG) vehicles and motorcycles (MC). HDD vehicles had the highest average CO2 emission rate, followed by LDD, LDG and MC at 1,198.8±93.1, 268.4±21.3, 166.1±27.7 and 42.5±6.1 g km-1, respectively; all values were significantly different (p < 0.05) from each other. The effect of different fuel types, including diesel, gasoline 91, gasohol 95, gasohol 91, liquid petroleum gas (LPG) and natural gas for vehicles (NGV), on the CO2 emission level was also compared. HDD vehicles had a higher rate of CO2 emission when using either NGV or diesel, while LDD vehicles emitted more CO2 with diesel than with NGV. For LDG vehicles, more CO2 was emitted with gasohol 91 than with gasohol E20, LPG or NGV. Finally, MC had a higher average CO2 emission rate with gasohol 95 than with gasoline 91 and gasohol 91 at any vehicle speed. The CO2 emission rates obtained in this study can be used as a basis to create a database that supports development of an efficient transportation management system and reduced vehicular emission of greenhouse gases in Thailand.

show abstract

Section: Results and Discussion 1) Co 2 Emission From Diesel Engine supporting

confidence: 93%

Comparison of CO2 Emissions from Vehicles in Thailand

2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…The LDDV had the lowest EF-CH 4 at 0.17 g km −1 and LDGV-2 had the lowest EF-CO 2 at 153.8 g km −1 . The results of this test correspond with the results from the chassis dynamometer in the study by Nilrit and Sampanpanish (2012).…”

Section: Emission Factors Of Ch 4 and Co 2 From The Tests Of The Thresupporting

confidence: 85%

EMISSION FACTORS OF CH<sub>4</sub> AND CO<sub>2</sub> EMITTED FROM VEHICLES

Nilrit¹,

Sampanpanish²,

Bualert³

2013

American Journal of Environmental Sciences

View full text Add to dashboard Cite

The study of the Emission Factors (EF) of methane (CH₄) and Carbon Dioxide (CO₂) emitted from vehicle exhaust is the study of greenhouse gases that are crucial to climate change. These gases are part of a fuel known as Compressed Natural Gas (CNG) or as Natural Gas for Vehicles (NGV) in Thailand. This fuel is used as an alternative to oil, which has decreased the amount of gasoline and diesel oil used in the transportation sector of Thailand. This study used different types of cars that were tested on a chassis dynamometer with a Bangkok driving cycle to measure the emissions of CH₄ and CO₂ and then to calculate the averages of EF-CH₄ and EF-CO₂, which are associated with speed and fuel consumption, respectively. This study was conducted in 3 vehicle types that are actually used in Thailand, namely, Heavy Duty Diesel Vehicles (HDDV), Light Duty Diesel Vehicles (LDDV) and Light Duty Gasoline Vehicles (LDGV). Our results showed that of the three vehicle types, HDDV produced the highest EF-CH₄ and EF-CO₂ averages at 7.22 and 919.6 g km^-1, respectively. LDDV produced the lowest EF-CH₄ (0.17 g km^-1) and LDGV produced the lowest EF-CO₂ (153.8 g km^-1). In addition, the EF-CH₄ and EF-CO2values of LDDV and LDGV were comparable even though the engine types of these vehicles were different. With respect to fuel consumption, the EF-CH₄ and EF-CO₂ of HDDV indicated a higher fuel consumption, which differed from those of LDDV and LDGV. Nevertheless, LDGV or taxis, which account for a large portion of the transportation sector in Thailand, emitted higher proportions of CH₄ and CO₂ than the other vehicle types, as shown by the CH₄:CO₂ ratio. Therefore, according to the results, the EF-CH₄ and EF-CO₂ values can be applied for the effective evaluation of CH₄ and CO₂ emissions from vehicles in Thailand

show abstract

“…Carbon dioxide gas is the main cause of global warming, dust and other particulates are the main causes of haze and other bad weather. These harmful components in the exhaust gas have a direct impact on the environmental and human health of human beings [3][4][5][6]. From the perspective of environmental protection, in order to reduce the emission of automobile exhaust, and thus reduce the pollution to the environment, the development of new vehicles replacing traditional internal combustion engines is the inevitable trend of the future [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Trimode Smart Charging and Real Vehicle Characteristics Investigation for Solar-electric Vehicles

Zeng¹,

Chen²,

Zhu³

2018

dteees

View full text Add to dashboard Cite

Abstract. Because of the increasingly serious problems of environmental pollution and non-renewable energy shortage, in recent years, the world has been vigorously developing new energy vehicles, especially electric vehicles. Electric vehicles with solar energy as an auxiliary energy source can reduce the demand for power generation and charging stations for excessive electric vehicles during peak hours. In the present study, a solar electric vehicle was built, in which batteries and solar panel jointly provided power for car operations. In order to ensure that the electricity of solar panel can be safely and continuously supplied to the motor, this paper designed an intelligent charging controller with three work mode to connect the solar panel and batteries. Through reasonable charging strategy, this technology can maximize the use of solar energy, and ensure the safety and service life of the battery. Real vehicle test results show that the solar intelligent charging technology has obvious effect on the expansion of vehicle endurance, and also show that the integration of solar panel into the body design is an effective means to deal with the energy crisis in the future.

show abstract

Emission Factor of Carbon Dioxide from In-Use Vehicles in Thailand

Cited by 7 publications

References 6 publications

Comparison of CO2 Emissions from Vehicles in Thailand

Comparison of CO2 Emissions from Vehicles in Thailand

EMISSION FACTORS OF CH<sub>4</sub> AND CO<sub>2</sub> EMITTED FROM VEHICLES

Trimode Smart Charging and Real Vehicle Characteristics Investigation for Solar-electric Vehicles

Contact Info

Product

Resources

About