Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity

Keiichi Okai; Yutaka Ono; Osamu Moriue; Hideki Kato; Mitsuhiro Tsue; Michikata Kono; Jun'Ichi Sato; Daniel L. Dietrich; Forman A. Williams

doi:10.1299/kikaib.65.2888

Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity

Keiichi Okai, Yutaka Ono, Osamu Moriue, Hideki Kato, Mitsuhiro Tsue, Michikata Kono, Jun'Ichi Sato, Daniel L. Dietrich, Forman A. Williams

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The interactive combustion of two closely-spaced droplets at elevated pressures was investigated experimentally in a 2.2 second drop tower. Heptane, hexadecane and mixtures of the two were the fuel, and a nitrogen-oxygen ambient with a relatively low oxygen concentration was employed to facilitate observaton of droplets during combustion at elevated pressures. Results show that staged combustion of binary fuel droplets still exists for interacting droplets at elevated pressures. For pure fuels, it is shown that the interaction effects are principally observed during the initial heating period. For fuel mixtures, interaction effects are estimated by comparing transition time of single droplet and that of two droplets.

Original language	English
Pages (from-to)	2888-2894
Number of pages	7
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	65
Issue number	636
DOIs	https://doi.org/10.1299/kikaib.65.2888
Publication status	Published - 1999
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1299/kikaib.65.2888

Cite this

Okai, K., Ono, Y., Moriue, O., Kato, H., Tsue, M., Kono, M., Sato, JI., Dietrich, D. L., & Williams, F. A. (1999). Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity. Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 65(636), 2888-2894. https://doi.org/10.1299/kikaib.65.2888

Okai, K, Ono, Y, Moriue, O, Kato, H, Tsue, M, Kono, M, Sato, JI, Dietrich, DL & Williams, FA 1999, 'Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity', Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 65, no. 636, pp. 2888-2894. https://doi.org/10.1299/kikaib.65.2888

@article{252964f25cf0468dbef6a4e27b09ca45,

title = "Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity",

abstract = "The interactive combustion of two closely-spaced droplets at elevated pressures was investigated experimentally in a 2.2 second drop tower. Heptane, hexadecane and mixtures of the two were the fuel, and a nitrogen-oxygen ambient with a relatively low oxygen concentration was employed to facilitate observaton of droplets during combustion at elevated pressures. Results show that staged combustion of binary fuel droplets still exists for interacting droplets at elevated pressures. For pure fuels, it is shown that the interaction effects are principally observed during the initial heating period. For fuel mixtures, interaction effects are estimated by comparing transition time of single droplet and that of two droplets.",

author = "Keiichi Okai and Yutaka Ono and Osamu Moriue and Hideki Kato and Mitsuhiro Tsue and Michikata Kono and Jun'Ichi Sato and Dietrich, {Daniel L.} and Williams, {Forman A.}",

year = "1999",

doi = "10.1299/kikaib.65.2888",

language = "English",

volume = "65",

pages = "2888--2894",

journal = "Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B",

issn = "0387-5016",

publisher = "The Japan Society of Mechanical Engineers",

number = "636",

}

TY - JOUR

T1 - Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity

AU - Okai, Keiichi

AU - Ono, Yutaka

AU - Moriue, Osamu

AU - Kato, Hideki

AU - Tsue, Mitsuhiro

AU - Kono, Michikata

AU - Sato, Jun'Ichi

AU - Dietrich, Daniel L.

AU - Williams, Forman A.

PY - 1999

Y1 - 1999

N2 - The interactive combustion of two closely-spaced droplets at elevated pressures was investigated experimentally in a 2.2 second drop tower. Heptane, hexadecane and mixtures of the two were the fuel, and a nitrogen-oxygen ambient with a relatively low oxygen concentration was employed to facilitate observaton of droplets during combustion at elevated pressures. Results show that staged combustion of binary fuel droplets still exists for interacting droplets at elevated pressures. For pure fuels, it is shown that the interaction effects are principally observed during the initial heating period. For fuel mixtures, interaction effects are estimated by comparing transition time of single droplet and that of two droplets.

AB - The interactive combustion of two closely-spaced droplets at elevated pressures was investigated experimentally in a 2.2 second drop tower. Heptane, hexadecane and mixtures of the two were the fuel, and a nitrogen-oxygen ambient with a relatively low oxygen concentration was employed to facilitate observaton of droplets during combustion at elevated pressures. Results show that staged combustion of binary fuel droplets still exists for interacting droplets at elevated pressures. For pure fuels, it is shown that the interaction effects are principally observed during the initial heating period. For fuel mixtures, interaction effects are estimated by comparing transition time of single droplet and that of two droplets.

UR - http://www.scopus.com/inward/record.url?scp=71249159773&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71249159773&partnerID=8YFLogxK

U2 - 10.1299/kikaib.65.2888

DO - 10.1299/kikaib.65.2888

M3 - Article

AN - SCOPUS:71249159773

SN - 0387-5016

VL - 65

SP - 2888

EP - 2894

JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B

IS - 636

ER -

Effects of the initial heat-up period on a two-droplet array burning at high pressure in microgravity

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this