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자료유형
학술대회자료
저자정보
이형돈 (한국산업기술시험원) 정만수 (규원테크)
저널정보
한국유체기계학회 한국유체기계학회 학술대회 논문집 2022년 한국유체기계학회 동계학술대회
발행연도
2022.11
수록면
681 - 689 (9page)

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Supply of various heating systems using wood pellets have been a popular choice as an alternative to oil. This was due to its advantages in price and efficiency. But research and development for boilers using wood fuel (firewood) for setting environmental standards has been scarce. On the other hand, overseas research and development on firewood boilers have been steadily conducted, mainly in Europe. In this study, a 30 kW class firewood boiler was developed and performance evaluation (combustion, environmental performance) was conducted. In addition, we designed an environmental certification standard (draft) suitable for the domestic situation by a standardized survey similar to those of domestic and foreign firewood boilers. After analyzing the combustion characteristics of firewood boilers, we have completed the design optimization of controlling more than 50% of the primary air damper and controlling the pyrolysis of heat in secondary air. As a result of analyzing the combustion characteristics for each fuel grade, it was confirmed that there was no significant difference from the EN303-5 quality standard, and the performance difference according to the fuel quality grade was not significant. Subsequently, after evaluating the heating performance, the heating output was 32.3 kW and the heating efficiency was 87.9%. After the environmental evaluation of the second prototype, it was confirmed that the CO concentration was very stable. PM less than 0.5 μm emission in total suspended particles(TSP) gave the highest contribution. Overall, the environmental certification standards for domestic firewood boilers were designed to have under 600 mg/m3 for CO, under 150 mg/㎥ for NOx, and under 60 mg/㎥ for PM.

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ABSTRACT
1. 서론
2. 연구 장치 및 방법
3. 연구 결과
6. 결론
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