INFLUENCE OF HYDROGEN ADDITION ON PERFORMANCE AND EMISSION FORMATION OF DIESEL ENGINE

  • Trịnh Xuân Phong
  • Hoàng Đình Long
  • Phạm Ngọc Anh
  • Nguyễn Phi Trường
Keywords: Hydrogen addition, diesel engine, dual fuel, engine emission control.

Abstract

This paper shows that the effect of hydrogen addition rate on the performance and emission
characteristics of diesel engines R180 in full load mode. Research methods contain experimental research and
simulation research. The engine has been experimentally tested in 2 modes: pure diesel and diesel-hydrogen
dual fuel with a hydrogen addition rate (HES) of 5%. Hydrogen was introduced into intake manifold using gas
injectors as additive fuel in gaseous form and also diesel fuel was injected into cylinder by diesel injector and
used as an igniter.. Based on the results of experimental research, build a 1-D AVL Boost model to simulate
higher hydrogen addition rates thereby assessing the effect of hydrogen addition rate to over combustion
and emissions of diesel engines. The results showed that in full load mode when the amount of hydrogen
replaced is less than 10%, engine power increases, BTE, BSEC almost not changce, Soot emissions drop
sharply, CO emissions decrease significantly, while NOx increases. When the replacement rate is greater than
10%, the hydrogen displacement is large, the amount of clean air intake decreases, the lambda is reduced,
the combustion imperfections lead to a decrease in engine power, increased BTE, increased BESC, Soot
emissions and CO increases, NOx emissions decrease.

điểm /   đánh giá
Published
2022-03-31
Section
RESEARCH AND DEVELOPMENT