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논문 기본 정보

자료유형
학술대회자료
저자정보
Quach Nhu Y (University of Ulsan) Ock-Taeck Lim (University of Ulsan)
저널정보
한국자동차공학회 한국자동차공학회 춘계학술대회 2024 한국자동차공학회 춘계학술대회
발행연도
2024.6
수록면
169 - 176 (8page)

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초록· 키워드

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The influence of heating value on combustion characteristics in an experimental engine setup has been meticulously examined in this study. A comprehensive analysis of engine performance parameters, including residual gas concentrations, effective release energy, brake mean effective pressure (BMEP), brake specific fuel consumption (BSFC), engine brake torque, and engine power, was conducted under varying heating values. An experimental system is installed with a dynamo testing system, and a simulation model is established using AVL-Boost software. In this research, the ignition timing is increased from a 10 degree to 40 degree crank angle bTDC. The engine testing speed band is from 3000 rpm – 10000 rpm. The findings revealed a nuanced interplay between heating value and combustion completeness, with a critical threshold at 35 degrees ignition timing. Notably, the highest residual gas concentrations were consistently observed at 35 degrees, indicating incomplete combustion. Conversely, combustion completeness improved at 20 degrees, accentuated by the pivotal role of heating value. Effective release energy exhibited a consistent increase up to 30 degrees ignition timing, underscoring the intricate relationship between ignition timing and energy release. BMEP peaked at 30 degrees across all heating values, with heating value significantly augmenting combustion efficiency. Conversely, BMEP reached its nadir at 35 degrees. BSFC displayed optimal combustion efficiency at 25 degrees. The engine demonstrated maximum brake torque and power at specific heating values and ignition timings.

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ABSTRACT
1. INTRODUCTION
2. EXPERIMENTAL SETUP AND MATERIAL
3. RESULTS AND DISCUSSIONS
REFERENCE

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