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Simultaneous detect...
Simultaneous detection of K, KOH, and KCl in flames and released from biomass using photofragmentation TDLAS
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- Thorin, Emil (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik
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- Zhang, Kun (författare)
- Center for Combustion Energy, Department of Energy and Power Engineering, Tsinghua University 100084, Beijing, China
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- Valiev, Damir (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik,Center for Combustion Energy, Department of Energy and Power Engineering, Tsinghua University 100084, Beijing, China
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visa fler...
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- Schmidt, Florian M., Dr. 1975- (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik
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visa färre...
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(creator_code:org_t)
- 2021-12-08
- 2021
- Engelska.
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Ingår i: Optics Express. - : The Optical Society. - 1094-4087. ; 29:26
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Gaseous potassium (K) species released from biomass during thermochemicalconversion pose challenges to reactors and human health. Photofragmentation tunable diodelaser absorption spectroscopy (PF-TDLAS) was used for simultaneous, high-dynamic rangemeasurements of atomic K, potassium hydroxide (KOH) and potassium chloride (KCl) inflat flames seeded with KCl salt. An expression for the PF-TDLAS signal is presented andexperimentally verified. Axial K species concentration profiles recorded at fuel-air equivalenceratios of 0.8 and 1.3 are compared to 2D axisymmetric reacting flow simulations. An overallgood agreement is found, but KOH is over-predicted in simulations of fuel-rich flames at theexpense of atomic K. Quantification of K species close to softwood and wheat straw particlesconverted in the flames is demonstrated.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
- LANTBRUKSVETENSKAPER -- Annan lantbruksvetenskap -- Förnyelsebar bioenergi (hsv//swe)
- AGRICULTURAL SCIENCES -- Other Agricultural Sciences -- Renewable Bioenergy Research (hsv//eng)
Nyckelord
- potassium (K)
- potassium hydroxide (KOH)
- potassium chloride (KCl)
- photofragmentation
- optical sensors
- tunable diode laser absorption spectroscopy
- biomass
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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