The effects of operating conditions on emissions from masonry heaters and sauna stoves

Jarkko Tissari, Kati Hytönen, Olli Sippula, Jorma Jokiniemi

Research output: Contribution to journalArticleScientificpeer-review

59 Citations (Scopus)

Abstract

Emissions from masonry heaters and sauna stoves were studied. In the sauna stove the production of organic gaseous carbon (OGC) at 10 gC kg−1 (per kilogram of fuel), carbon monoxide (CO) at 55 g kg−1, fine particle mass (PM1) at 5 g kg−1 and number emissions (N) at 1.8 × 1015 kg−1 was higher than in other measured appliances. In a modern technology masonry heater with a unique grate, the emissions were very low: 0.4 gC kg−1 OGC, 14 g kg−1 CO and 0.7 g kg−1 PM1. Conventional masonry heaters, using small logs, clearly produced higher emissions when compared to using large logs. Doubling the fuel load caused emission factors to increase by up to 4- times (OGC), except for the number emission, which decreased from 4.0 × 1014 to 2.0 × 1014 kg−1. From the conventional masonry heater 90% of the PM was emitted during the firing phase. Its combustion process is different to that in stoves or conventional open fireplaces. The insufficient supply of air, due to too fast pyrolysis, and increased ash release, due to the high combustion temperature, are the main parameters which cause high particle and gas emissions in masonry heaters and sauna stoves.
Original languageEnglish
Pages (from-to)513-520
JournalBiomass and Bioenergy
Volume33
Issue number3
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Stoves
heaters
masonry
Ashes
Carbon monoxide
carbon monoxide
Carbon
combustion
carbon
particulate emissions
emissions factor
Gas emissions
gas emissions
pyrolysis
Pyrolysis
organic production
heater
stove
effect
ash

Keywords

  • batch combustion
  • emissions
  • fine particles
  • operational practices
  • wood log
  • heaters
  • sauna stove

Cite this

Tissari, Jarkko ; Hytönen, Kati ; Sippula, Olli ; Jokiniemi, Jorma. / The effects of operating conditions on emissions from masonry heaters and sauna stoves. In: Biomass and Bioenergy. 2009 ; Vol. 33, No. 3. pp. 513-520.
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abstract = "Emissions from masonry heaters and sauna stoves were studied. In the sauna stove the production of organic gaseous carbon (OGC) at 10 gC kg−1 (per kilogram of fuel), carbon monoxide (CO) at 55 g kg−1, fine particle mass (PM1) at 5 g kg−1 and number emissions (N) at 1.8 × 1015 kg−1 was higher than in other measured appliances. In a modern technology masonry heater with a unique grate, the emissions were very low: 0.4 gC kg−1 OGC, 14 g kg−1 CO and 0.7 g kg−1 PM1. Conventional masonry heaters, using small logs, clearly produced higher emissions when compared to using large logs. Doubling the fuel load caused emission factors to increase by up to 4- times (OGC), except for the number emission, which decreased from 4.0 × 1014 to 2.0 × 1014 kg−1. From the conventional masonry heater 90{\%} of the PM was emitted during the firing phase. Its combustion process is different to that in stoves or conventional open fireplaces. The insufficient supply of air, due to too fast pyrolysis, and increased ash release, due to the high combustion temperature, are the main parameters which cause high particle and gas emissions in masonry heaters and sauna stoves.",
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The effects of operating conditions on emissions from masonry heaters and sauna stoves. / Tissari, Jarkko; Hytönen, Kati; Sippula, Olli; Jokiniemi, Jorma.

In: Biomass and Bioenergy, Vol. 33, No. 3, 2009, p. 513-520.

Research output: Contribution to journalArticleScientificpeer-review

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N2 - Emissions from masonry heaters and sauna stoves were studied. In the sauna stove the production of organic gaseous carbon (OGC) at 10 gC kg−1 (per kilogram of fuel), carbon monoxide (CO) at 55 g kg−1, fine particle mass (PM1) at 5 g kg−1 and number emissions (N) at 1.8 × 1015 kg−1 was higher than in other measured appliances. In a modern technology masonry heater with a unique grate, the emissions were very low: 0.4 gC kg−1 OGC, 14 g kg−1 CO and 0.7 g kg−1 PM1. Conventional masonry heaters, using small logs, clearly produced higher emissions when compared to using large logs. Doubling the fuel load caused emission factors to increase by up to 4- times (OGC), except for the number emission, which decreased from 4.0 × 1014 to 2.0 × 1014 kg−1. From the conventional masonry heater 90% of the PM was emitted during the firing phase. Its combustion process is different to that in stoves or conventional open fireplaces. The insufficient supply of air, due to too fast pyrolysis, and increased ash release, due to the high combustion temperature, are the main parameters which cause high particle and gas emissions in masonry heaters and sauna stoves.

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