Academic Challenge for Regional Transition toward Sustainable Carbon Neutral ...
Study on Combustion in a Gas Engine for Power Generation Fueled with Biomass - Prof. Eiji Tomita (Dean of Faculty of Engineering, Okayama University)
1. First RCE Thematic Conference: Towards Achieving the SDGs
(Dec.5, 2017)
バイオマスを燃料とする
発電用ガスエンジンの燃焼に関する研究
Study on Combustion in a Gas Engine for Power Generation
Fueled with Biomass
岡山大学大学院
自然科学研究科
冨田 栄二 (Eiji TOMITA)
4. 岡山大学大学院自然科学研究科プロジェクト
Project in Graduate school of Natural Science and Technology, Okayama
University
CO2循環・削減型社会実現に向けての
融合的研究
Fusional Study for Realization of Circulation and Reduction of
Carbon Dioxide
April 2007-March 2010
(PJ leader:Eiji TOMITA)
After this project,
each research continues individually.
6. Experimental apparatus for biogas
Diesel fuel
injector
TDC signal
CH4
CO2
N2
Air compressor
Common rail
Diesel fuel
Exhaust gas
H2
CO
Dynamometer
Mass flow
controller
Pin=200kPa
Combustion & exhaust emissions in a biomass gas engine
9. mgo= 2.0mg/cycle Pgo=40 MPa CA, deg. ATDC
IN
INEX
EX
13.5 15.0 16.5 18.0 21.0
-1.5 TDC 1.5 3.0 4.5
6.0 7.5 9.0 10.5 12.0
mgo= 2.0mg/cycle Pgo=40 MPa CA, deg. ATDC
IN
INEX
EX IN
INEX
EX
13.5 15.0 16.5 18.0 21.0
-1.5 TDC 1.5 3.0 4.5
6.0 7.5 9.0 10.5 12.0
10. 0
5
10
15
20
25
-30 -15 0 15 30 45
Crank angle, deg ATDC
Pressure,MPa Knock
Auto-ignition without
pressure oscillation
Normal combustion
Gas oil only
Motoring
n=1000rpm, CNG+ diesel fuel ft=0.6, mgo=2.0mg/cycle, Pin=200kPa
Pressure history in a natural gas engine ignited with diesel fuel
Bore 96mm
Stroke 108mm
e 16
Injector
f0.1mmx3
Pinj=40MPa
Clarification of PREMIER combustion
(PREMixed gas Ignition
in the End gas Region)