Development of a Combustor in Portable Pellet Stoves Using Wood Pellets to Improve Combustion Efficiency and to Reduce Carbon Monoxide (CO) Emission

Min, Kyoung-Soon, Lim, Dae-Eun

doi:10.12652/Ksce.2020.40.3.0315

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2020 Vol.40, Issue 3 Preview Page Next Page

2019 Convention Article

Development of a Combustor in Portable Pellet Stoves Using Wood Pellets to Improve Combustion Efficiency and to Reduce Carbon Monoxide (CO) Emission 목재 펠릿(pellet)을 활용하는 휴대용 펠릿 난로의 연소 효율 향상과 일산화탄소(CO) 배출 저감을 위한 연소기 개발

June 2020. pp. 315-320

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Abstract

목재 부산물 등을 활용하여 제조되는 목재펠릿(pellet)은 가공되는 방식과 추가되는 부산물의 종류, 목재펠릿난로의 종류에 따라 완전연소가 아닌 불완전연소가 일어나는 경우가 있다. 이에 본 연구에서는 불완전연소로 인한 환경오염과 에너지 낭비를 줄이기 위해 목재펠릿난로 연소 작용의 핵심부인 연소기를 개발하였다. 현재 시중에서 유통되고 있는 목재펠릿난로의 연소 작용을 담당하고 있는 연소기의 한계점을 넘기 위해 다층구조(Multi Layer)방식이라 명명하는 새로운 구조의 연소기 방식을 창안하고, CAD (Computer Aided Design) program으로 설계 후 3D 프린터를 활용하여 실현 가능성을 검증하였다. 검증된 데이터를 바탕으로 다층구조(Mulit Layer)방식의 목재펠릿난로의 연소 작용을 담당하는 연소기의 시제품(Prototype)을 설계, 제작하여 실험을 진행하였다. 실험의 신뢰도를 위해 동일한 날짜, 장소, 연료를 사용하여 현재 시중에서 유통되어 판매되고 있는 목재펠릿난로의 연소기와 본 연구에서 개발한 목재펠릿난로의 연소기를 비교실험하였다. 실험의 결과로 환경적인 측면에서 일산화탄소(Carbon Monoxide) 배출량의 감소를 확인하였고, 에너지 효율면에서 상대적으로 높은 열효율 결과를 도출하여 긍정적인 결과를 나타냈다.

키워드

펠릿 난로

지구온난화

목재 펠릿

연소기

일산화탄소

완전연소

바이오매스

Pellets are manufactured using wood by-products. The combustion efficiency of pellets depends on the pellet manufacturing process, the types of materials mixed while manufacturing and the wood pellet stoves themselves. In this study, we developed a multi-layer combustor to be used in a wood pellet stove, for the purpose of reducing environmental pollution and energy waste due to incomplete combustion. The multi-layer combustor was designed to compensate for the shortcomings of existing combustors. A CAD (Computer Aided Design) model was verified using a 3D printer and a prototype was developed. The combustion experiments were conducted on commercial and proposed combustors using pellets of the same brand, manufacturing date, place and specifications. From the experiments, it was found that the proposed combustor produced the lowest carbon monoxide (CO) emission and highest thermal efficiency.

Keywords

Recycle

Global warming

Wood pellets

Multistage combustor

Complete combustion

Biomass

References

Euh, S. H., Oh, K. C., Oh, J. H. and Kim, D. H. (2014). "The formation characteristics of tar, ash and clinker due to combustion of wood pellet and performance analysis of wood pellet boiler in terms of the moisture contents change of the wood pellet." Journal of Energy Engineering, Vol. 23, No. 3, pp. 221-230 (in Korean).

10.5855/ENERGY.2014.23.3.211

Forest Biomass Energy Association (2019). Felit and felit boyer, Available at: http://www.biomassenergy.kr/ (Accessed: November 1, 2019) (in Korean).

Joo, S. Y., Lee, C. G., Jeong, I. S., Park, S. Y., Oh, K. C., Cho, L. H., Lee, S. Y., Kim, M. J., Kim, S. J. and Kim, D. H. (2019). "Tar reduction and thermal efficiency analysis of a wood pellet boiler using catalyst mixed pellets." New & Renewable Energy, Vol. 15, No. 2, pp. 1-8.

10.7849/ksnre.2019.6.15.2.001

Kang, K. R. (2018). 1.5 trillion won in domestic camping industry, Available at: https://www.edaily.co.kr/news/read?newsId=029356066 19080672&mediaCodeNo=257 (Accessed: January 23, 2018) (in Korean).

Kang, S. B., Kim, H. J., Kim, J. J., Park, H. C., Choi, K. S., Sim, B. S. and Oh, H. Y. (2011). "Performance characteristics of domestic wood pellet boilers." The Society of Air-Conditioning And Refrigerating Engineers of Korea, pp. 900-903 (in Korean).

Kang, S. B., Kim, J. J. and Choi, K. S. (2009). "Performance test and flue gas characteristics of domestic wood pellet boilers." The Society of Air-Conditioning and Refrigerating Engineers of Korea, pp. 569-573 (in Korean).

Kang, S. U., Choi, J. M., Yoon, D. H., Lee, G. Y. and Park, D. C. (2016). A basic study on the situation and a model development of glamping sites, The Korean Housing Association, pp. 107-112 (in Korean).

Kim, D. Y., Han, Y. H., Choi, M. A., Park, S. K. and Jang, Y. K. (2014). "A study on estimation of air pollutants emission from wood stove and boiler, wood-pellet stove and boiler." Journal of Korean Society for Atmospheric Environment, Vol. 30, No. 3, pp. 251-260 (in Korean).

10.5572/KOSAE.2014.30.3.251

Kim, H. W. (2019a). What is the trend of the camping industry?, Chosun news paper, Available at: http://news.chosun.com/ site/data/html_dir/ 2019/04/09/2019040901530.html (Accessed: April 9, 2019) (in Korean).

Kim, J. G. (2019b). What is wood pellets?, Korea Forest Service, Available at: https://www.forest.go.kr/newkfsweb/html/ Html Page.do?pg=/resource/resource_040701.html&mn=KFS_02_01_04_07_01 (Accessed: November 1, 2019) (in Korean).

Kim, N. H., Cha, D. S. and Kwon, G. J. (2009). "Characteristics of the commercial wood pellets." Journal of Forest and Environmental Science, Vol. 25, No. 2, pp. 127-130 (in Korean).

Korean Energy Agency, Indicator (2019). New renewable energy supply statistics, Available at: http://www.index.go.kr/unify/idx- info.do?idxCd=4293&clasCd=7,2018 (Accessed: November 1, 2019) (in Korean).

Melzer, E. J. (2010). Proposed biomass plant: Better than coal?, The Michigan Messenger, Archived from the original on 2010-02-05.

Popp, J., Lakner, Z., Harangi-Rakos, M. and Fári, M. (2014). "The effect of bioenergy expansion: Food, energy, and environment." Renewable and Sustainable Energy Reviews, Vol. 32, pp. 559-578.

10.1016/j.rser.2014.01.056

Use EFB Pellet as Renewable Energy (2015). Biofuel resource, Retrieved 16 February 2015, Available at: http://www.altenergy.org/ renewables/biomass.html/ (Accessed: November 1, 2019).

Zhang, J. J. and Smith, K. R. (2007). "Household air pollution from coal and biomass fuels in China: Measurements, health impacts, and interventions." Environmental Health Perspectives, Vol. 115, No. 6, pp. 848-855.

10.1289/ehp.947917589590PMC1892127

Information

Publisher :Korean Society of Civil Engineers
Publisher(Ko) :대한토목학회
Journal Title :KSCE JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING RESEARCH
Journal Title(Ko) :대한토목학회 논문집
Volume : 40
No :3
Pages :315-320
Received Date :2019. 11. 16
Revised Date :2020. 01. 20
Accepted Date : 2020. 03. 30
DOI :https://doi.org/10.12652/Ksce.2020.40.3.0315

KSCE JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING RESEARCH ISSN:1015-6348(Print) 2287-934X(Online) 대한토목학회 논문집

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