Improvement of combustion in a dual fuel natural gas engine with half the number of cylinders

Norifumi Mizushima, Shingo Ito, Jin Kusaka, Yasuhiro Daisho

研究成果: Conference article

7 引用 (Scopus)

抄録

A dual fuel natural gas diesel engine suffers from remarkably lower thermal efficiency and higher THC, CO emissions at lower load because of its lower burned mass fraction caused by the lean pre-mixture. To overcome this inevitable disadvantage at lower load, two methods of reducing the number of operating cylinders were examined. One method was to use the two cylinders operation while the second one was to use the quasi-two cylinders operation. As a result, it was found that the unburned hydrocarbons and CO emissions could be favorably reduced with the improvement of thermal efficiency by reducing the number of cylinders to half for a dual fuel natural gas diesel engine. Moreover, it was also found that the quasi-two cylinders operation could improve the torque fluctuation more compared to the two cylinders operation.

元の言語English
ジャーナルSAE Technical Papers
DOI
出版物ステータスPublished - 2003 1 1
イベント2003 JSAE/SAE International Spring Fuels and Lubricants Meeting - Yokohama, Japan
継続期間: 2003 5 192003 5 22

Fingerprint

Gas engines
Engine cylinders
Natural gas
Diesel engines
Torque
Hydrocarbons

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

これを引用

Improvement of combustion in a dual fuel natural gas engine with half the number of cylinders. / Mizushima, Norifumi; Ito, Shingo; Kusaka, Jin; Daisho, Yasuhiro.

:: SAE Technical Papers, 01.01.2003.

研究成果: Conference article

@article{b210542e8142408a83f667cbe806e715,
title = "Improvement of combustion in a dual fuel natural gas engine with half the number of cylinders",
abstract = "A dual fuel natural gas diesel engine suffers from remarkably lower thermal efficiency and higher THC, CO emissions at lower load because of its lower burned mass fraction caused by the lean pre-mixture. To overcome this inevitable disadvantage at lower load, two methods of reducing the number of operating cylinders were examined. One method was to use the two cylinders operation while the second one was to use the quasi-two cylinders operation. As a result, it was found that the unburned hydrocarbons and CO emissions could be favorably reduced with the improvement of thermal efficiency by reducing the number of cylinders to half for a dual fuel natural gas diesel engine. Moreover, it was also found that the quasi-two cylinders operation could improve the torque fluctuation more compared to the two cylinders operation.",
author = "Norifumi Mizushima and Shingo Ito and Jin Kusaka and Yasuhiro Daisho",
year = "2003",
month = "1",
day = "1",
doi = "10.4271/2003-01-1938",
language = "English",
journal = "SAE Technical Papers",
issn = "0148-7191",
publisher = "SAE International",

}

TY - JOUR

T1 - Improvement of combustion in a dual fuel natural gas engine with half the number of cylinders

AU - Mizushima, Norifumi

AU - Ito, Shingo

AU - Kusaka, Jin

AU - Daisho, Yasuhiro

PY - 2003/1/1

Y1 - 2003/1/1

N2 - A dual fuel natural gas diesel engine suffers from remarkably lower thermal efficiency and higher THC, CO emissions at lower load because of its lower burned mass fraction caused by the lean pre-mixture. To overcome this inevitable disadvantage at lower load, two methods of reducing the number of operating cylinders were examined. One method was to use the two cylinders operation while the second one was to use the quasi-two cylinders operation. As a result, it was found that the unburned hydrocarbons and CO emissions could be favorably reduced with the improvement of thermal efficiency by reducing the number of cylinders to half for a dual fuel natural gas diesel engine. Moreover, it was also found that the quasi-two cylinders operation could improve the torque fluctuation more compared to the two cylinders operation.

AB - A dual fuel natural gas diesel engine suffers from remarkably lower thermal efficiency and higher THC, CO emissions at lower load because of its lower burned mass fraction caused by the lean pre-mixture. To overcome this inevitable disadvantage at lower load, two methods of reducing the number of operating cylinders were examined. One method was to use the two cylinders operation while the second one was to use the quasi-two cylinders operation. As a result, it was found that the unburned hydrocarbons and CO emissions could be favorably reduced with the improvement of thermal efficiency by reducing the number of cylinders to half for a dual fuel natural gas diesel engine. Moreover, it was also found that the quasi-two cylinders operation could improve the torque fluctuation more compared to the two cylinders operation.

UR - http://www.scopus.com/inward/record.url?scp=85072422564&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85072422564&partnerID=8YFLogxK

U2 - 10.4271/2003-01-1938

DO - 10.4271/2003-01-1938

M3 - Conference article

AN - SCOPUS:85072422564

JO - SAE Technical Papers

JF - SAE Technical Papers

SN - 0148-7191

ER -