All Issue

2018 Vol.30, Issue 3 Preview Page
December 2018. pp. 192-199

The main objective of this study was to improve the wood pellet boiler and overcome inefficient air supply to the grate in the combustion chamber. Nozzle-type burner pins were attached to the grate to increase the contact area between the solid fuel (pellets) in the grate and the supplied air. In order to verify the increase in thermal efficiency due to the nozzle-type burner pins, comparative experiments were conducted using the same two wood pellet boilers. Two hours of experiments were conducted under the same external conditions (amount of oxidizer, load, ambient temperature, and pellet consumption). The results showed that the combustion characteristics of the flue gas from the boiler with burner pins were improved compared to those of the conventional boiler: the carbon dioxide content was increased, and the thermal efficiency was increased by 2.51%. The contact area between the wood pellets in the grate and the air supply was increased by the nozzle-type burner pins; hence, this boiler showed an improved combustion performance compared to that of the conventional burner system.

  1. Bloomberg New Energy Finance (2015) Australia's 2030 emissions pledge in line with other OECD nations, but lacks the tools to deliver.
  2. Choi, Y. S., Euh, S. H., Oh, K. C., Kim, D. H., Oh, J. H. (2015) A study on combustion characteristics in terms of the type of fuel supply device (feeder) of a wood pellet boiler, J Energy Eng 24:120-128.10.5855/ENERGY.2015.24.2.120
  3. Euh, S. H., Oh, K. C., Oh, J. H., 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, J Energy Eng 23:221-230.
  4. Euh, S. H. (2016) A study on tar fouling mechanism to improve the combustion system efficiency. Ph.D. Thesis, Kangwon National University, Chuncheon, Korea.
  5. Euh, S. H., Kafle, S., Choi, Y. S., Oh, J. H., Kim, D. H. (2016) A study on the tar fouled on thermal efficiency of a wood pellet boiler: A performance analysis and simulation using computation fluid dynamics, Energy 103:305-312.10.1016/
  6. Euh, S. H., Kafle, S., Lee, S. Y., Lee, C. G., Jo, L. H., Choi, Y. S., Oh, J. H., Kim, D. H. (2017) Establishment and validation of tar fouling mechanism in wood pellet boiler using kinetic models, Appl Therm Eng 127:165-175.10.1016/j.applthermaleng.2017.07.212
  7. Euh, S. H., Choi, Y. S., Nam, Y. S., Lee, C. G., Lee, S. Y., Oh, K. C., Oh, J. H., Kim, D. H. (2018) Development of a real-time drying control system for a pneumatic conveying dryer for sawdust in pellet production, Energy 161:10-16.10.1016/
  • Publisher :Agriculture and Life Sciences Research Institute, Kangwon National University
  • Publisher(Ko) :강원대학교 농업생명과학대학 농업생명과학연구원
  • Journal Title :Journal of Agricultural, Life and Environmental Sciences
  • Journal Title(Ko) :강원농업생명환경연구
  • Volume : 30
  • No :3
  • Pages :192-199
  • Received Date :2018. 12. 07
  • Accepted Date : 2018. 12. 19
Journal Informaiton Agriculture and Life Sciences Research Institute Journal of Agricultural, Life and Environmental Sciences
  • NRF
  • crosscheck
  • open access
  • orcid
  • KISTI Cited-by
  • ccl
  • KISTI Current Status
Journal Informaiton Journal Informaiton - close