DEVELOPMENT OF REAL OPERATING TEST CYCLE FOR
TIER-IV CONSTRUCTION MACHINERIES WITH
EMISSIONS CHARACTERISTICS |
Jingeun Song 1, Joonbong Chang 2, Seokho Moon 3, Dong In Lee 4, Youngkyo Seo 4, Yunsung Lim 4, Junepyo Cha 5 |
1Kyungpook National University 2ed Powertrain R&D Center 3Konkuk University 4Transportation Pollution Research Center 5Korea National University of Transportation |
|
|
|
|
ABSTRACT |
Recently, the clean air support system (CAPSS) pronounced that construction machinery is the second-largest
source of pollutants in Non-road mobile machinery (NRMM) after ship. Three types of vehicles, forklifts, excavators, and
loaders, account for 80 % of pollutants emitted by all construction machinery. In addition, domestic construction emission
regulation has been reinforced by adopting the EU Stage V regulations. Therefore, it is necessary to analyze the domestic and
overseas construction machinery regulations and perform emission test under real operation condition. In this study, three
construction machineries (1 unit each of forklift, excavator, and loader) were selected as test vehicles. The emissions were
measured using a portable emissions measurement system (PEMS) installed on the test vehicles. The real operation test was
conducted in accordance with EU Stage V ISM policy emission measurement procedure. The real operation test cycles were
developed for each vehicle type to meet the minimum test duration requirement. Additionally, the test data were evaluated to
distinguish valid working events and analyze emission characteristics using the moving average window (MAW) analysis
method. |
Key Words:
Non-road mobile machinery (NRMM), Construction machinery, Portable emissions measurement system
(PEMS), Real operation emission test, In-service monitoring, Real operation test cycle for emission measurement |
|