Performances of a heat exchanger and pilot boiler for the development of a condensing gas boiler

Seungro Lee; Sung Min Kum; Chang Eon Lee

doi:10.1016/j.energy.2011.05.018

Performances of a heat exchanger and pilot boiler for the development of a condensing gas boiler

Seungro Lee
, Sung Min Kum
, Chang Eon Lee^*

^*Corresponding author for this work

Department of Mechanical Engineering

Inha University
Cheju Halla University

Research output: Contribution to journal › Journal article › peer-review

51 Scopus citations

Abstract

In this research, design factors for a heat exchanger and boiler were investigated using a simplified model of a heat exchanger and pilot condensing boiler, respectively. Specifications of each heat exchanger component (e.g., upper heat exchanger (UHE) and lower heat exchanger (LHE); coil heat exchanger (CHE); baffles) were investigated using a model apparatus, and the comprehensive performance of the pilot gas boiler was examined experimentally. The heating efficiency of the boiler developed was about 90% when using the optimal designed heat exchangers. Compared to a conventional Bunsen-type boiler, the heating efficiency was improved about 10%. Additionally, NO_x and CO emissions were about 30ppm and 160ppm, respectively, based on a 0% O₂ basis at an equivalence ratio of 0.70, which is an appropriate operating condition. However, the pollutant emission of the boiler developed is satisfactory considering the emission performance of a condensing boiler, even though CO emission must be reduced.

Original language	English
Pages (from-to)	3945-3951
Number of pages	7
Journal	Energy
Volume	36
Issue number	7
DOIs	https://doi.org/10.1016/j.energy.2011.05.018
State	Published - 2011.07

Keywords

Condensing boiler
Heat exchanger
Pilot boiler

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10.1016/j.energy.2011.05.018

Cite this

@article{e1f580bb516046e0ab437378ee615297,

title = "Performances of a heat exchanger and pilot boiler for the development of a condensing gas boiler",

abstract = "In this research, design factors for a heat exchanger and boiler were investigated using a simplified model of a heat exchanger and pilot condensing boiler, respectively. Specifications of each heat exchanger component (e.g., upper heat exchanger (UHE) and lower heat exchanger (LHE); coil heat exchanger (CHE); baffles) were investigated using a model apparatus, and the comprehensive performance of the pilot gas boiler was examined experimentally. The heating efficiency of the boiler developed was about 90\% when using the optimal designed heat exchangers. Compared to a conventional Bunsen-type boiler, the heating efficiency was improved about 10\%. Additionally, NOx and CO emissions were about 30ppm and 160ppm, respectively, based on a 0\% O2 basis at an equivalence ratio of 0.70, which is an appropriate operating condition. However, the pollutant emission of the boiler developed is satisfactory considering the emission performance of a condensing boiler, even though CO emission must be reduced.",

keywords = "Condensing boiler, Heat exchanger, Pilot boiler",

author = "Seungro Lee and Kum, \{Sung Min\} and Lee, \{Chang Eon\}",

year = "2011",

month = jul,

doi = "10.1016/j.energy.2011.05.018",

language = "English",

volume = "36",

pages = "3945--3951",

journal = "Energy",

issn = "0360-5442",

number = "7",

}

TY - JOUR

T1 - Performances of a heat exchanger and pilot boiler for the development of a condensing gas boiler

AU - Lee, Seungro

AU - Kum, Sung Min

AU - Lee, Chang Eon

PY - 2011/7

Y1 - 2011/7

N2 - In this research, design factors for a heat exchanger and boiler were investigated using a simplified model of a heat exchanger and pilot condensing boiler, respectively. Specifications of each heat exchanger component (e.g., upper heat exchanger (UHE) and lower heat exchanger (LHE); coil heat exchanger (CHE); baffles) were investigated using a model apparatus, and the comprehensive performance of the pilot gas boiler was examined experimentally. The heating efficiency of the boiler developed was about 90% when using the optimal designed heat exchangers. Compared to a conventional Bunsen-type boiler, the heating efficiency was improved about 10%. Additionally, NOx and CO emissions were about 30ppm and 160ppm, respectively, based on a 0% O2 basis at an equivalence ratio of 0.70, which is an appropriate operating condition. However, the pollutant emission of the boiler developed is satisfactory considering the emission performance of a condensing boiler, even though CO emission must be reduced.

AB - In this research, design factors for a heat exchanger and boiler were investigated using a simplified model of a heat exchanger and pilot condensing boiler, respectively. Specifications of each heat exchanger component (e.g., upper heat exchanger (UHE) and lower heat exchanger (LHE); coil heat exchanger (CHE); baffles) were investigated using a model apparatus, and the comprehensive performance of the pilot gas boiler was examined experimentally. The heating efficiency of the boiler developed was about 90% when using the optimal designed heat exchangers. Compared to a conventional Bunsen-type boiler, the heating efficiency was improved about 10%. Additionally, NOx and CO emissions were about 30ppm and 160ppm, respectively, based on a 0% O2 basis at an equivalence ratio of 0.70, which is an appropriate operating condition. However, the pollutant emission of the boiler developed is satisfactory considering the emission performance of a condensing boiler, even though CO emission must be reduced.

KW - Condensing boiler

KW - Heat exchanger

KW - Pilot boiler

UR - https://www.scopus.com/pages/publications/79959378243

U2 - 10.1016/j.energy.2011.05.018

DO - 10.1016/j.energy.2011.05.018

M3 - Journal article

AN - SCOPUS:79959378243

SN - 0360-5442

VL - 36

SP - 3945

EP - 3951

JO - Energy

JF - Energy

IS - 7

ER -

Performances of a heat exchanger and pilot boiler for the development of a condensing gas boiler

Abstract

Keywords

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