The effects of exhaust gas recirculation on premixed type condensing boiler

Jinsu Kim; Byeonghun Yu; Seungro Lee; Sung Min Kum; Chang Eon Lee

The effects of exhaust gas recirculation on premixed type condensing boiler

Jinsu Kim
, Byeonghun Yu
, Seungro Lee
, Sung Min Kum
, Chang Eon Lee^*

^*Corresponding author for this work

Department of Mechanical Engineering

Inha University
Cheju Halla University

Research output: Conference(x) › Paper › peer-review

Abstract

The premixed combustion system as the preheated air condensing boiler applying exhaust gas recirculation (EGR) was investigated to achieve the low pollutant emission and the high thermal efficiency. In this study, it was studied the effects of EGR on the thermal efficiency, NO_x and CO emissions with various EGR and equivalence ratios, numerically and experimentally. As results, when the equivalence ratio increased, thermal efficiency and NO_x and CO concentrations increased. Especially, in the case of 15% of EGR ratio at 0.85 of equivalence ratio, NO_x and CO concentrations were a smaller than these of the current operating condition of the boiler (φ=0.78) and the thermal efficiency was approximately 1.7% higher.

Original language	English
State	Published - 2013
Event	9th Asia-Pacific Conference on Combustion, ASPACC 2013 - Gyeongju, Korea, Republic of Duration: 2013.05.19 → 2013.05.22

Conference

Conference	9th Asia-Pacific Conference on Combustion, ASPACC 2013
Country/Territory	Korea, Republic of
City	Gyeongju
Period	13.05.19 → 13.05.22

Cite this

@conference{3b9eb44a77b94d2fa232f557d11390d1,

title = "The effects of exhaust gas recirculation on premixed type condensing boiler",

abstract = "The premixed combustion system as the preheated air condensing boiler applying exhaust gas recirculation (EGR) was investigated to achieve the low pollutant emission and the high thermal efficiency. In this study, it was studied the effects of EGR on the thermal efficiency, NOx and CO emissions with various EGR and equivalence ratios, numerically and experimentally. As results, when the equivalence ratio increased, thermal efficiency and NOx and CO concentrations increased. Especially, in the case of 15\% of EGR ratio at 0.85 of equivalence ratio, NOx and CO concentrations were a smaller than these of the current operating condition of the boiler (φ=0.78) and the thermal efficiency was approximately 1.7\% higher.",

author = "Jinsu Kim and Byeonghun Yu and Seungro Lee and Kum, \{Sung Min\} and Lee, \{Chang Eon\}",

year = "2013",

language = "English",

note = "9th Asia-Pacific Conference on Combustion, ASPACC 2013 ; Conference date: 19-05-2013 Through 22-05-2013",

}

TY - CONF

T1 - The effects of exhaust gas recirculation on premixed type condensing boiler

AU - Kim, Jinsu

AU - Yu, Byeonghun

AU - Lee, Seungro

AU - Kum, Sung Min

AU - Lee, Chang Eon

PY - 2013

Y1 - 2013

N2 - The premixed combustion system as the preheated air condensing boiler applying exhaust gas recirculation (EGR) was investigated to achieve the low pollutant emission and the high thermal efficiency. In this study, it was studied the effects of EGR on the thermal efficiency, NOx and CO emissions with various EGR and equivalence ratios, numerically and experimentally. As results, when the equivalence ratio increased, thermal efficiency and NOx and CO concentrations increased. Especially, in the case of 15% of EGR ratio at 0.85 of equivalence ratio, NOx and CO concentrations were a smaller than these of the current operating condition of the boiler (φ=0.78) and the thermal efficiency was approximately 1.7% higher.

AB - The premixed combustion system as the preheated air condensing boiler applying exhaust gas recirculation (EGR) was investigated to achieve the low pollutant emission and the high thermal efficiency. In this study, it was studied the effects of EGR on the thermal efficiency, NOx and CO emissions with various EGR and equivalence ratios, numerically and experimentally. As results, when the equivalence ratio increased, thermal efficiency and NOx and CO concentrations increased. Especially, in the case of 15% of EGR ratio at 0.85 of equivalence ratio, NOx and CO concentrations were a smaller than these of the current operating condition of the boiler (φ=0.78) and the thermal efficiency was approximately 1.7% higher.

UR - https://www.scopus.com/pages/publications/84905493251

M3 - Paper

AN - SCOPUS:84905493251

T2 - 9th Asia-Pacific Conference on Combustion, ASPACC 2013

Y2 - 19 May 2013 through 22 May 2013

ER -

The effects of exhaust gas recirculation on premixed type condensing boiler

Abstract

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