The effects of de-humidification and O2 direct injection in oxy-pc combustion

C. G. Choi; I. H. Na; J. W. Lee; T. Y. Chae; W. Yang

The effects of de-humidification and O2 direct injection in oxy-pc combustion

C. G. Choi
, I. H. Na
, J. W. Lee
, T. Y. Chae
, W. Yang

Department of Smart Mobility Engineering

Korea Institute of Industrial Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

This study is aimed to derive effects of de-humidification and O ₂ direct injection in oxy-PC combustion system. Temperature distribution and flue gas composition were observed for various air and oxy-fuel conditions such as effect of various O₂ concentration of total oxidant, O₂concentration of primary stream and O₂ direct injection through 0-D heat and mass balance calculation and experiments in the oxy-PC combustion system of 0.3MW scale in KITECH (Korea Institute of Industrial Technology). Flame attachment characteristic related to O₂ direct injection was also observed experimentally. We found that FEGT (furnace exit gas temperature) of 100% de-humidification to oxidizer is lower than humidification condition; difference between two conditions is lower than 20°C in all cases. The efficiency changing of combustion was negligible in O₂ direct injection. But O₂ direct injection should be carefully designed to produce a stable flame.

Original language	English
Title of host publication	Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion
Publisher	Springer-Verlag Berlin Heidelberg
Pages	808-809
Number of pages	2
ISBN (Print)	3540356061, 9783642304446
State	Published - 2012
Event	7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC - Harbin, China Duration: 17 Jul 2011 → 20 Jul 2011

Publication series

Name	Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion

Conference

Conference	7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC
Country/Territory	China
City	Harbin
Period	17/07/11 → 20/07/11

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Flue gas recirculation
Oxy-fuel combustion
Pilot-scale experiment
Pulverized coal

Cite this

Choi, C. G., Na, I. H., Lee, J. W., Chae, T. Y., & Yang, W. (2012). The effects of de-humidification and O2 direct injection in oxy-pc combustion. In Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion (pp. 808-809). (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion). Springer-Verlag Berlin Heidelberg.

Choi, C. G. ; Na, I. H. ; Lee, J. W. et al. / The effects of de-humidification and O2 direct injection in oxy-pc combustion. Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Springer-Verlag Berlin Heidelberg, 2012. pp. 808-809 (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion).

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title = "The effects of de-humidification and O2 direct injection in oxy-pc combustion",

abstract = "This study is aimed to derive effects of de-humidification and O 2 direct injection in oxy-PC combustion system. Temperature distribution and flue gas composition were observed for various air and oxy-fuel conditions such as effect of various O2 concentration of total oxidant, O2concentration of primary stream and O2 direct injection through 0-D heat and mass balance calculation and experiments in the oxy-PC combustion system of 0.3MW scale in KITECH (Korea Institute of Industrial Technology). Flame attachment characteristic related to O2 direct injection was also observed experimentally. We found that FEGT (furnace exit gas temperature) of 100\% de-humidification to oxidizer is lower than humidification condition; difference between two conditions is lower than 20°C in all cases. The efficiency changing of combustion was negligible in O2 direct injection. But O2 direct injection should be carefully designed to produce a stable flame.",

keywords = "Flue gas recirculation, Oxy-fuel combustion, Pilot-scale experiment, Pulverized coal",

author = "Choi, \{C. G.\} and Na, \{I. H.\} and Lee, \{J. W.\} and Chae, \{T. Y.\} and W. Yang",

year = "2012",

language = "English",

isbn = "3540356061",

series = "Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion",

publisher = "Springer-Verlag Berlin Heidelberg",

pages = "808--809",

booktitle = "Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion",

note = "7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC ; Conference date: 17-07-2011 Through 20-07-2011",

}

Choi, CG, Na, IH, Lee, JW, Chae, TY & Yang, W 2012, The effects of de-humidification and O2 direct injection in oxy-pc combustion. in Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion, Springer-Verlag Berlin Heidelberg, pp. 808-809, 7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC, Harbin, China, 17/07/11.

The effects of de-humidification and O2 direct injection in oxy-pc combustion. / Choi, C. G.; Na, I. H.; Lee, J. W. et al.
Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Springer-Verlag Berlin Heidelberg, 2012. p. 808-809 (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - The effects of de-humidification and O2 direct injection in oxy-pc combustion

AU - Choi, C. G.

AU - Na, I. H.

AU - Lee, J. W.

AU - Chae, T. Y.

AU - Yang, W.

PY - 2012

Y1 - 2012

N2 - This study is aimed to derive effects of de-humidification and O 2 direct injection in oxy-PC combustion system. Temperature distribution and flue gas composition were observed for various air and oxy-fuel conditions such as effect of various O2 concentration of total oxidant, O2concentration of primary stream and O2 direct injection through 0-D heat and mass balance calculation and experiments in the oxy-PC combustion system of 0.3MW scale in KITECH (Korea Institute of Industrial Technology). Flame attachment characteristic related to O2 direct injection was also observed experimentally. We found that FEGT (furnace exit gas temperature) of 100% de-humidification to oxidizer is lower than humidification condition; difference between two conditions is lower than 20°C in all cases. The efficiency changing of combustion was negligible in O2 direct injection. But O2 direct injection should be carefully designed to produce a stable flame.

AB - This study is aimed to derive effects of de-humidification and O 2 direct injection in oxy-PC combustion system. Temperature distribution and flue gas composition were observed for various air and oxy-fuel conditions such as effect of various O2 concentration of total oxidant, O2concentration of primary stream and O2 direct injection through 0-D heat and mass balance calculation and experiments in the oxy-PC combustion system of 0.3MW scale in KITECH (Korea Institute of Industrial Technology). Flame attachment characteristic related to O2 direct injection was also observed experimentally. We found that FEGT (furnace exit gas temperature) of 100% de-humidification to oxidizer is lower than humidification condition; difference between two conditions is lower than 20°C in all cases. The efficiency changing of combustion was negligible in O2 direct injection. But O2 direct injection should be carefully designed to produce a stable flame.

KW - Flue gas recirculation

KW - Oxy-fuel combustion

KW - Pilot-scale experiment

KW - Pulverized coal

UR - https://www.scopus.com/pages/publications/84866110480

M3 - Conference contribution

AN - SCOPUS:84866110480

SN - 3540356061

SN - 9783642304446

T3 - Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion

SP - 808

EP - 809

BT - Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion

PB - Springer-Verlag Berlin Heidelberg

T2 - 7th International Symposium on Coal Combustion: Cleaner Combustion and Sustainable World, ISCC

Y2 - 17 July 2011 through 20 July 2011

ER -

Choi CG, Na IH, Lee JW, Chae TY, Yang W. The effects of de-humidification and O2 direct injection in oxy-pc combustion. In Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion. Springer-Verlag Berlin Heidelberg. 2012. p. 808-809. (Cleaner Combustion and Sustainable World - Proceedings of the 7th International Symposium on Coal Combustion).

The effects of de-humidification and O2 direct injection in oxy-pc combustion

Abstract

Publication series

Conference

UN SDGs

Keywords

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