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High-speed interferometric measurement and visualization of the conversion of a black liquor droplet during laser heating
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0003-4879-8261
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.ORCID-id: 0000-0001-8355-2414
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.
Vise andre og tillknytning
2012 (engelsk)Inngår i: Optics and lasers in engineering, ISSN 0143-8166, E-ISSN 1873-0302, Vol. 50, nr 11, s. 1654-1661Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Black liquor is a mix of organic and inorganic materials that is left after the kraft pulping process. In a modern pulp mill the pulping chemicals and the energy in the black liquor is recovered and used in the pulping cycle by burning the black liquor in a recovery burner. An alternative to the recovery boiler is to gasify the black liquor to produce an energy rich synthesis gas that can be upgraded into synthetic fuels or chemicals. Characterization of black liquor has mostly been done under conditions that are relevant for recovery boilers but the conditions in a gasifier differ significantly from this. In particular the droplets are much smaller and the heating rates are much higher. This paper presents an optical interferometric technique that has the potential to produce data under relevant conditions for gasification. In the paper, results are measured at atmospheric conditions and with relatively low heating rate. However, the method can be applied also for pressurized conditions and at heating rates that are only limited by the frame rate of the digital camera that is used to capture the transient event when the droplets are heated. In the paper the dynamic properties of the gas ejected from and the swelling during conversion of a single droplet are measured

sted, utgiver, år, opplag, sider
2012. Vol. 50, nr 11, s. 1654-1661
HSV kategori
Forskningsprogram
Strömningslära; Experimentell mekanik; Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-10207DOI: 10.1016/j.optlaseng.2012.05.001ISI: 000307620900021Scopus ID: 2-s2.0-84864287158Lokal ID: 8f8423fe-791c-4f6d-a520-149558104cfbOAI: oai:DiVA.org:ltu-10207DiVA, id: diva2:983147
Merknad
Validerad; 2012; 20120806 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Lycksam, HenrikSjödahl, MikaelGren, PerÖhman, MarcusGebart, Rikard

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