Modelling of the finned convection section of a biomass boiler

Jukka Yrjölä (Corresponding Author), Janne Paavilainen, Heikki Oravainen

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

Fouling of the convection section of a boiler has an effect on the efficiency of thermochemical biomass conversion. In this paper, a modelling for the heat transfer of a fouled fin is discussed. The temperature of the base of the fouled fin is assumed to be equal to the surface temperature of the wall and the difference of the heat transfer rate is ±2% when compared to the results of finite element method calculations. A calculating procedure for simulating the thermal performance of the entire convection section is introduced. It was established that the calculations describe the effects of changes in the operation conditions with satisfactory accuracy. This was verified by measurements at three biomass boiler plants.
Original languageEnglish
Pages (from-to)2552-2563
JournalEnergy Conversion and Management
Volume47
Issue number15-16
DOIs
Publication statusPublished - 2006
MoE publication typeA1 Journal article-refereed

Fingerprint

Boilers
Biomass
Heat transfer
Fins (heat exchange)
Fouling
Finite element method
Temperature
Convection
Hot Temperature

Keywords

  • deposit
  • extended surface
  • finite element method
  • fouling
  • heat transfer
  • biomass
  • boiler plants

Cite this

Yrjölä, Jukka ; Paavilainen, Janne ; Oravainen, Heikki. / Modelling of the finned convection section of a biomass boiler. In: Energy Conversion and Management. 2006 ; Vol. 47, No. 15-16. pp. 2552-2563.
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Modelling of the finned convection section of a biomass boiler. / Yrjölä, Jukka (Corresponding Author); Paavilainen, Janne; Oravainen, Heikki.

In: Energy Conversion and Management, Vol. 47, No. 15-16, 2006, p. 2552-2563.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Modelling of the finned convection section of a biomass boiler

AU - Yrjölä, Jukka

AU - Paavilainen, Janne

AU - Oravainen, Heikki

PY - 2006

Y1 - 2006

N2 - Fouling of the convection section of a boiler has an effect on the efficiency of thermochemical biomass conversion. In this paper, a modelling for the heat transfer of a fouled fin is discussed. The temperature of the base of the fouled fin is assumed to be equal to the surface temperature of the wall and the difference of the heat transfer rate is ±2% when compared to the results of finite element method calculations. A calculating procedure for simulating the thermal performance of the entire convection section is introduced. It was established that the calculations describe the effects of changes in the operation conditions with satisfactory accuracy. This was verified by measurements at three biomass boiler plants.

AB - Fouling of the convection section of a boiler has an effect on the efficiency of thermochemical biomass conversion. In this paper, a modelling for the heat transfer of a fouled fin is discussed. The temperature of the base of the fouled fin is assumed to be equal to the surface temperature of the wall and the difference of the heat transfer rate is ±2% when compared to the results of finite element method calculations. A calculating procedure for simulating the thermal performance of the entire convection section is introduced. It was established that the calculations describe the effects of changes in the operation conditions with satisfactory accuracy. This was verified by measurements at three biomass boiler plants.

KW - deposit

KW - extended surface

KW - finite element method

KW - fouling

KW - heat transfer

KW - biomass

KW - boiler plants

U2 - 10.1016/j.enconman.2005.10.036

DO - 10.1016/j.enconman.2005.10.036

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