STRATIFIED CHARGE COMBUSTION AT A HIGH PRESSURE AND TEMPERATURE USING A CONSTANT-VOLUME COMBUSTION VESSEL. (DEVELOPMENT OF THE COMBUSTION SYSTEM AND EXPERIMENTS ON COMBUSTION).

Kyu Hoon Choi, Humio Ohno, Ken Umehara, Yasuhiro Daisho, Takeshi Saito

Research output: Contribution to journalArticle

Abstract

A constant-volume combustion system has been developed to reproduce direct-injection stratified-charge combustion, which is regarded as a promising concept for lean combustion. A fully premixed mixture consisting of N//2, O//2 and H//2 was ignited to obtain a high pressure and temperature occurring at the top dead center in a real engine. The H//2 in the mixture is oxidized by a part of the O//2; thus, a N//2-H//2O-O//2 mixture can be prepared before the injection of iso-octane fuel. Velocities of the swirling air in the vessel were measured by hot-wire anemometry and combustion was analyzed from schlieren photographs and combustion pressures. The results show that a compromise should be achieved between burning velocity and NOx and HC emissions by adjusting the swirl level.

Original languageEnglish
Pages (from-to)1641-1646
Number of pages6
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume53
Issue number489
Publication statusPublished - 1987 May
Externally publishedYes

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vessels
Experiments
Temperature
injection
swirling
Direct injection
octanes
photographs
velocity measurement
engines
adjusting
wire
Wire
Engines
air
Air

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

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title = "STRATIFIED CHARGE COMBUSTION AT A HIGH PRESSURE AND TEMPERATURE USING A CONSTANT-VOLUME COMBUSTION VESSEL. (DEVELOPMENT OF THE COMBUSTION SYSTEM AND EXPERIMENTS ON COMBUSTION).",
abstract = "A constant-volume combustion system has been developed to reproduce direct-injection stratified-charge combustion, which is regarded as a promising concept for lean combustion. A fully premixed mixture consisting of N//2, O//2 and H//2 was ignited to obtain a high pressure and temperature occurring at the top dead center in a real engine. The H//2 in the mixture is oxidized by a part of the O//2; thus, a N//2-H//2O-O//2 mixture can be prepared before the injection of iso-octane fuel. Velocities of the swirling air in the vessel were measured by hot-wire anemometry and combustion was analyzed from schlieren photographs and combustion pressures. The results show that a compromise should be achieved between burning velocity and NOx and HC emissions by adjusting the swirl level.",
author = "Choi, {Kyu Hoon} and Humio Ohno and Ken Umehara and Yasuhiro Daisho and Takeshi Saito",
year = "1987",
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T1 - STRATIFIED CHARGE COMBUSTION AT A HIGH PRESSURE AND TEMPERATURE USING A CONSTANT-VOLUME COMBUSTION VESSEL. (DEVELOPMENT OF THE COMBUSTION SYSTEM AND EXPERIMENTS ON COMBUSTION).

AU - Choi, Kyu Hoon

AU - Ohno, Humio

AU - Umehara, Ken

AU - Daisho, Yasuhiro

AU - Saito, Takeshi

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AB - A constant-volume combustion system has been developed to reproduce direct-injection stratified-charge combustion, which is regarded as a promising concept for lean combustion. A fully premixed mixture consisting of N//2, O//2 and H//2 was ignited to obtain a high pressure and temperature occurring at the top dead center in a real engine. The H//2 in the mixture is oxidized by a part of the O//2; thus, a N//2-H//2O-O//2 mixture can be prepared before the injection of iso-octane fuel. Velocities of the swirling air in the vessel were measured by hot-wire anemometry and combustion was analyzed from schlieren photographs and combustion pressures. The results show that a compromise should be achieved between burning velocity and NOx and HC emissions by adjusting the swirl level.

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