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四行程機車排氣檢定排放測定參數之變異數分析及以迴歸分析建立燃燒效率模式

Variance analysis of measurement parameters of exhaust test for four-cycle motorcycles emissions and regression analysis of combustion efficiency model

摘要


在地狹人稠的臺灣,機動車為民眾生活中不可或缺的代步工具,機動車的數量更是不斷提升,每年產生的污染物,例如:一氧化碳(CO)、碳氫化合物(HC),佔了全國總排放量的10%,為了解決嚴重的空氣污染,環保署制定了各項政策,包含機車排氣定期檢驗、逐年提高排放標準,期許能夠降低污染,提升空氣品質。燃燒效率為評估燃燒器燃燒燃料效果的一種指標,以燃燒燃料獲得熱量而言,燃燒效率越高,其成本越低,高燃燒效率可以降低污染,當燃料出現不完全燃燒時會產生一氧化碳(CO),反之若完全燃燒僅會產生二氧化碳(CO_2),因此可以利用此兩種參數作為評估燃燒器燃燒效率好壞的指標。因此本研究利用宜蘭縣機動車2014年及2015年的四行程機車之檢測資料建構出一組以檢測資料做為燃燒效率的參數,透過燃燒效率來了解燃料被利用的程度。另外也針對其他因素對於測定參數進行變異數分析,其他因素包括:廠牌、排氣量、里程數、期程別,本研究以SPSS軟體,以變異數分析針對每個測定參數進行分析,探討測定參數對於其他因素之間關係,另外利用迴歸分析進行燃燒效率統計分析歸納出一方程式。

並列摘要


Motorcycles are popular and important transportation in Taiwan. The number of motorcycles is increasing every year and then emits larger amount of pollutants, such as carbon monoxide (CO) and Hydrocarbons (HC). In order to solve serious air pollution problems, Environmental Protection Agency of Taiwan, R.O.C. have announced several policies, for example, motor vehicles regular inspection and increasing emissions standards, to reduce pollution and improve air quality. Combustion efficiency is an index which can be used to evaluate the effect of engine burning the fuels. The higher combustion efficiency shows lower CO produced and lower the pollution. In this study, the motorcycles inspection data of Yilan county, Taiwan was used to inspect the relationships between the pollutants emissions and combustion efficiency, also considered the parameters, such as, brands, displacements, mileage, and periods. In this study, SPSS software was used to analyze each measurement parameter with the variance analysis to explore the relationship between the measured parameters and other factors. The regression analysis was also used to analyze the relationship between measured parameters and combustion efficiency.

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