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A Study on the Temperature Distribution at the Surface of Diesel Particulate Filter and Partitioned Electric Heater according to the Conditions of Heating and Flow using an Infrared Temperature Camera  

Lee, Choong-Hoon (Department of Automotive Engineering, Seoul National University of Technology)
Paik, Sung-Chon (Graduate School of Railroad, Seoul National University of Technology)
Publication Information
Journal of the Korean Society of Safety / v.23, no.5, 2008 , pp. 7-14 More about this Journal
Abstract
The temperature distribution in a surface of diesel particulate filter(DPF) was measured using an infrared temperature camera. In order to regenerate the DPF, five partitioned electric heaters were used for heating the ceramic filter. The five partitioned heaters were switched on/off with some time interval one the other. The surface temperature distribution in the ceramic filter and electric heaters were measured with varying both the electrical power supply to the heaters and the mass flow rate of the air supply from a blower. The higher mass flow rate in the DPF system enhanced the uniformity in the surface temperature distribution of the ceramic filter due to effective convection heat transfer. The flow in the monolith ceramic structure of the DPF move mainly in the axial direction, which could be identified from the surface temperature of the ceramic filter.
Keywords
partitioned electric heater; diesel engine; DPF(diesel particulate filter); temperature distribution; infrared temperature camera;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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