Dynamic Characteristic of Exhaust Emission from Construction Equipment: A Case Study of Construction Excavator

• Main Authors: SU, YU-CHENG, 蘇昱丞
• Other Authors: CHANG, YU-MING
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/5x785u

碩士 === 國立臺北科技大學 === 環境工程與管理研究所 === 107 === During construction or plant (field) operations, significant portion of greenhouse gases (GHG, Greenhouse Gas) and air pollutants are derived from construction work equipment. The air pollutant from diesel construction equipment, including nitrogen oxides (NOX), carbon monoxide (CO) and particulate matter (PM2.5 and PM10). this issue be deeply concerned by the government and the public. Because these pollutants may endanger human health and damage surrounding environment. The purpose of the research is to discuss the air pollutant emission characteristics of the construction equipment during dynamic operation. The research also use self-designed portable emission measurement system（PEMS）to carry out sampling and testing of granular and gaseous pollutants in construction equipment and also choose three excavators as sampling objects. According to the results, the pollution discharge of three excavators in NOX are 155～435 ppm , for CO are 110～860 ppm , for the THC are 11～70 ppm , and for PM2.5 are 11～117 mg/Nm3. The result of study shows the engine horsepower and engine speed are the key emission factors affecting air pollution emission concentrations in construction equipment. And other affecting air pollution emission concentrations are personnel operating conditions and combustion characteristics of diesel engines. In this study obtained the actual exhaust emissions in construction equipment during dynamic operation, after result will compare with the relevant literature and establish the standard procedures for sampling and testing dynamic pollutants of localized construction equipment. Which will provide domestic construction equipment control measures.