ENGINEERING

A study on the emissions of SOx and NH3 for a 78 kW class agricultural tractor according to agricultural operations

Seung Min Kim1   Wan Soo Kim2   Jun Ho Lee1   Yean Jung Kim3   Dae Seok Suh3   Sun Ok Chung1,2   Chang Hyun Choi4   Byoung Woo Gam5,*   Yong-Joo Kim1,2,*   

1Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Korea
2Department of Biosystems Machinery Engineering, Chungnam National University, Daejeon 34134, Korea
3Department of Agroindustry Innovation Research, Korea Rural Economic Institute, Naju 58321, Korea
4Department of Bio-Mechatronic Engineering, Sungkyunkwan University, Suwon 16419, Korea
5Smart System Research Division, Daedong Industrial Co., Ltd., Seoul 06724, Korea

Abstract

The purpose of this study was to compare and analyze the emissions of SOx and NH3 for a 78 kW class agricultural tractor during agricultural operations. A real-time monitoring system was constructed for measuring the load data. The field test was conducted during plow and rotary tillage. The working conditions were selected with the transmission gears in M3 Low and M2 High for the plow tillage and L3 High and L3 Low for the rotary tillage. The engine torque and fuel consumption were measured using controller area network (CAN) communication, and the emissions of SOx and NH3 were calculated based on the fuel consumption. As a result of the field tests, the engine torque was higher for the plow tillage than for the rotary tillage. As the gear stage was increased, the engine torque became higher. The emissions of SOx and NH3 were higher for the plow tillage than for the rotary tillage because the fuel consumption increased. Moreover, the emissions of SOx and NH3 tended to be more distributed for the rotary tillage than for the plow tillage. To develop an emission factor for agricultural machinery, it is important to measure reliable emission data during agricultural operations. In a future study, we will collect various emission data using a portable emission measurement system during agricultural operations.

Figures & Tables

Fig. 1. Photo of field test according agricultural operations: (a) Plow tillage, (b) rotary tillage.