Simplified dynamic model for heat input and output of heat storing stoves

Jaakko Saastamoinen, Pekka Tuomaala, Tuomas Paloposki, Krzysztof Klobut

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

A simplified method to describe the dynamical heat output from heat storing stoves for small houses with a single or several successive firing batches is presented. Both measurements in a stove and theoretical and experimental studies of the combustion of single wood logs can be applied to study the heat input from the batch firing to the furnace walls. Different distributions for presenting heat input as function of time from the firing of a batch are discussed. Three different approaches can be made. The first is to present the measured heat input by fitting a statistical distribution such as lognormal or gamma distribution. The second approach is to apply a distribution that is based on the approximate combustion physics of a wood log. These two types of input distributions can be applied as a boundary condition for numerical simulation of heat output of different stove constructions. The third alternative is to select input distribution function, which is so simple that analytical solution for the heat output calculations of an idealized stove for approximate and fast simulation is possible.
Original languageEnglish
Pages (from-to)2878 - 2890
JournalApplied Thermal Engineering
Volume25
Issue number17 - 18
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

Stoves
Dynamic models
Wood
Hot Temperature
Distribution functions
Furnaces
Physics
Boundary conditions
Computer simulation

Keywords

  • stove
  • wood combustion
  • transient heat conduction
  • heat storage
  • room heating

Cite this

Saastamoinen, Jaakko ; Tuomaala, Pekka ; Paloposki, Tuomas ; Klobut, Krzysztof. / Simplified dynamic model for heat input and output of heat storing stoves. In: Applied Thermal Engineering. 2005 ; Vol. 25, No. 17 - 18. pp. 2878 - 2890.
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Simplified dynamic model for heat input and output of heat storing stoves. / Saastamoinen, Jaakko; Tuomaala, Pekka; Paloposki, Tuomas; Klobut, Krzysztof.

In: Applied Thermal Engineering, Vol. 25, No. 17 - 18, 2005, p. 2878 - 2890.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Simplified dynamic model for heat input and output of heat storing stoves

AU - Saastamoinen, Jaakko

AU - Tuomaala, Pekka

AU - Paloposki, Tuomas

AU - Klobut, Krzysztof

PY - 2005

Y1 - 2005

N2 - A simplified method to describe the dynamical heat output from heat storing stoves for small houses with a single or several successive firing batches is presented. Both measurements in a stove and theoretical and experimental studies of the combustion of single wood logs can be applied to study the heat input from the batch firing to the furnace walls. Different distributions for presenting heat input as function of time from the firing of a batch are discussed. Three different approaches can be made. The first is to present the measured heat input by fitting a statistical distribution such as lognormal or gamma distribution. The second approach is to apply a distribution that is based on the approximate combustion physics of a wood log. These two types of input distributions can be applied as a boundary condition for numerical simulation of heat output of different stove constructions. The third alternative is to select input distribution function, which is so simple that analytical solution for the heat output calculations of an idealized stove for approximate and fast simulation is possible.

AB - A simplified method to describe the dynamical heat output from heat storing stoves for small houses with a single or several successive firing batches is presented. Both measurements in a stove and theoretical and experimental studies of the combustion of single wood logs can be applied to study the heat input from the batch firing to the furnace walls. Different distributions for presenting heat input as function of time from the firing of a batch are discussed. Three different approaches can be made. The first is to present the measured heat input by fitting a statistical distribution such as lognormal or gamma distribution. The second approach is to apply a distribution that is based on the approximate combustion physics of a wood log. These two types of input distributions can be applied as a boundary condition for numerical simulation of heat output of different stove constructions. The third alternative is to select input distribution function, which is so simple that analytical solution for the heat output calculations of an idealized stove for approximate and fast simulation is possible.

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KW - wood combustion

KW - transient heat conduction

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KW - room heating

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