Characterization of operating conditions of two residential wood combustion appliances

Calvo, Ana; Tarelho, L.A.C.; Alves, Célia; Duarte, Márcio; Tarelho, Luís António da Cruz

doi:10.1016/j.fuproc.2014.05.001

Cited by 47 publications

(49 citation statements)

References 50 publications

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“…if the combustion rate is too high, the devolatilised gases could go directly through the chimney without reacting, due to insufficient residence time in the combustion chamber [40]. Thus, two periods of high CO and THC levels were identified in the present work and in other studies [28]: a first peak related to the fuel fast devolatilisation after reloading the combustion chamber and a second peak related to the char combustion at relatively low temperatures (b500°C).…”

Section: Combustion Conditionsmentioning

confidence: 62%

“…The emission factors were calculated following the methodology described by Calvo et al [28], taking into account the concentration of the compound in the flue gas, the mean combustion gas flow rate in the chimney, the sampling time and the fuel mass consumed (dry basis). Fig.…”

Section: Gaseous Emissionsmentioning

confidence: 99%

“…The emission factors were calculated following the methodology described by Calvo et al [28], taking into account the concentration of PM 10 in the dilution tunnel, the mean combustion gas flow rate also in the dilution tunnel, the sampling time and the fuel mass consumed (dry basis). The emission factors for "softwood" combustion ranged between 5.07 ± 0.30 and 16.74 ± 1.92 (g kg −1 of wood burned, dry basis).…”

Section: Pm 10 Emission Factorsmentioning

confidence: 99%

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Emission of carbon monoxide, total hydrocarbons and particulate matter during wood combustion in a stove operating under distinct conditions

Vicente

Duarte

Calvo

et al. 2015

Fuel Processing Technology

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Wood combustion experiments were carried out to determine the effect of ignition technique, biomass load and cleavage, as well as secondary air supply, on carbon monoxide (CO), total hydrocarbon (THC), particulate matter (PM 10 ) and particle number emissions from a woodstove. Wood from two typical tree species in the Iberian Peninsula was selected: pine (Pinus pinaster) and beech (Fagus sylvatica). The highest CO and total hydrocarbon emission factors (EFs) were observed, respectively, for pine and beech, for high and low fuel loads. The highest PM 10 EF was recorded for the operation with low loads for both woods. Secondary air supply produced the lowest PM 10 emission factors. The top ignition can decrease the PM 10 EF to less than half when compared with the common technique of lighting from the bottom. The lowest particle number emission factors were observed when operating with high loads of split beech logs and when using secondary air supply during the combustion of pine. Regarding particle number distributions, the highest geometric mean diameter (Dg), for both woods, were observed when operating with high loads (with split and non-split wood).

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Section: Combustion Conditionsmentioning

confidence: 62%

Section: Gaseous Emissionsmentioning

confidence: 99%

Section: Pm 10 Emission Factorsmentioning

confidence: 99%

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Emission of carbon monoxide, total hydrocarbons and particulate matter during wood combustion in a stove operating under distinct conditions

Vicente

Duarte

Calvo

et al. 2015

Fuel Processing Technology

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“…Sprawność energetyczna wkładu kominkowego została wyznaczona zgodnie z wymaganiami normy PN-EN 13229:2002/A1:2005 będącej normą odniesienia, która określa sprawność na podstawie strat cieplnych urządzenia według wzoru (1).…”

Section: Metodyka Badańunclassified

“…Ze względu na duże zainteresowanie spalaniem paliw innych niż kopalne tego typu analizy koncentrują się w szczególności na urządzeniach wykorzystujących w procesie spalania biomasę, do której należy zaliczyć również drewno [3,9,10,14]. Wspomniane badania poświęcono wpływowi zarówno skła-du biomasy, jak i wilgotności i temperatury powietrza dostarczanego do spalania [3] na jakość spalin oraz wielkość emisji substancji szkodliwych w wyniku niecałkowitego i niezupeł-nego spalania paliwa [1,9,13]. Głównym wnioskiem wynikającym z badań jest określenie zasad prowadzenia procesu spalania biomasy, aby był on efektywny energetycznie oraz bezpieczny dla środowiska.…”

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Wpływ ustawienia przepływu powietrza na jakość spalania i sprawność wkładu kominkowego

Rataj

2016

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Wpływ ustawienia przepływu powietrza na jakość spalania i sprawność wkładu kominkowego Zarówno wkłady kominkowe, jak i ogrzewacze wolnostojące na paliwa stałe zyskują coraz większą popularność [5]. Stają się one nie tylko elementem dekoracyjnym, ale również źródłem ciepła, które powinno być wykorzystywane jak najbardziej efektywnie i bezpiecznie w całym okresie użytkowania urządzenia. Niniejszy artykuł pokazuje, w jaki sposób zmiany ustawienia przepływu powietrza mają wpływ na parametry pracy danego urządzenia, takie jak: sprawność, jakość spalania i temperatura spalin. Analiza została wykonana dla wkładu kominkowego dostęp-nego na rynku. Podczas badań prowadzono rejestrację następujących parametrów spalin: zawartości tlenu, tlenku węgla(II), tlenku węgla(IV) oraz temperatury. Uzyskane wyniki posłużyły do oceny zarówno efektywności energetycznej osiąganej przez urządzenie, jak i jakości spalin powstających podczas procesu spalania biomasy (drewna) w różnych warunkach dopływu powietrza.Słowa kluczowe: wkład kominkowy, jakość spalania, sprawność. Impact of air flow settings on the combustion quality and efficiency of fireplace insertsFireplace inserts and roomheaters fired by solid fuel are growing in popularity. They have become not only a decorative element, but also a useful source of heat, which should be used in the most effective and safe way, over the lifetime of the device. This article shows how a change in the air flow settings can impact the combustion and operating parameters of devices, in terms of efficiency, quality of combustion and flue gas temperature. The research was done on a commercially available stove. The following parameters of flue gas were measured during the research: content of oxygen, carbon monoxide, carbon dioxide and value of temperature. The results were used to evaluate the performance achieved by the device and the quality of flue gases produced during the combustion of wood in a variety of air flow conditions.

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Mutagenicity assessment of aerosols in emissions from domestic combustion processes

Canha

Lopes

Vicente

et al. 2016

Environ Sci Pollut Res

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Domestic biofuel combustion is one of the major sources of regional and local air pollution, mainly regarding particulate matter and organic compounds, during winter periods. Mutagenic and carcinogenic activity potentials of the ambient particulate matter have been associated with the fraction of polycyclic aromatic hydrocarbons (PAH) and their ox-ygenated (OPAH) and nitrogenated (NPAH) derivatives. This study aimed at assessing the mutagenicity potential of the fraction of this polycyclic aromatic compound in particles (PM 10) from domestic combustion by using the Ames assays with Salmonella typhimurium TA98 and TA100. Seven biofuels, including four types of pellets and three agro-fuels (olive pit, almond shell and shell of pine nuts), were tested in an automatic pellet stove, and two types of wood (Pinus pinaster, maritime pine, and Eucalyptus globulus, eucalypt) were burned in a traditional wood stove. For this latter appliance , two combustion phases-Devolatilisation and flaming/ smouldering-Were characterised separately. A direct-acting mutagenic effect for the devolatilisation phase of pine combustion and for both phases of eucalypt combustion was found. Almond shell revealed a weak direct-acting mu-tagenic effect, while one type of pellets, made of recycled wastes, and pine (devolatilisation) presented a cytotoxic effect towards strain TA100. Compared to the manually fired appliance, the automatic pellet stove promoted lower polyaromatic mutagenic emissions. For this device, only two of the studied biofuels presented a weak mutagenic or cytotoxic potential. This article was originally intended as an invited contribution to the special issue Biomonitoring of atmospheric pollution: possibilities and future challenges but was inadvertently published prematurely in

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Characterization of operating conditions of two residential wood combustion appliances

Cited by 47 publications

References 50 publications

Emission of carbon monoxide, total hydrocarbons and particulate matter during wood combustion in a stove operating under distinct conditions

Emission of carbon monoxide, total hydrocarbons and particulate matter during wood combustion in a stove operating under distinct conditions

Wpływ ustawienia przepływu powietrza na jakość spalania i sprawność wkładu kominkowego

Mutagenicity assessment of aerosols in emissions from domestic combustion processes

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