1 Ocak 2020 Dergi makalesi Açık Erişim

Raheem, Duygu Gunduz; Yilmaz, Baris; Kayahan, Ufuk; Ozdogan, Sibel

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{
  "@context": "https://schema.org/", 
  "@id": 89255, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Raheem, Duygu Gunduz"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Marmara Univ, Dept Mech Engn, Fac Engn, Goztepe Campus, TR-34722 Istanbul, Turkey", 
      "name": "Yilmaz, Baris"
    }, 
    {
      "@type": "Person", 
      "affiliation": "TUBITAK Marmara Res Ctr, Energy Inst, TR-41470 Kocaeli, Turkey", 
      "name": "Kayahan, Ufuk"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Marmara Univ, Dept Mech Engn, Fac Engn, Goztepe Campus, TR-34722 Istanbul, Turkey", 
      "name": "Ozdogan, Sibel"
    }
  ], 
  "datePublished": "2020-01-01", 
  "description": "Oxy-combustion and oxygen-enriched combustion appear as promising options for CO2 capture. In this study, the effect of the recycled flue gas (RFG) ratio on lignite oxy-combustion has been experimentally studied in comparison with oxygen-enriched (O-2/N-2) combustion in a 30 kW h circulating fluidized bed reactor. Oxygen concentrations range from 21 to 28% for both cases, while RFG ratios vary between 0.72 and 0.63 in the oxy-combustion case. The influence of oxygen concentration in the combustion atmosphere on temperature, gaseous emissions, and carbon-based combustion efficiency were investigated by keeping the excess oxygen ratio constant at 1.45 for all cases. Temperatures in the combustor increase with increasing O-2 concentration. CO2 emissions are much higher in O-2/RFG combustion. CO and N2O emissions decrease with O-2 enrichment, while NO and SO2 emissions are promoted for both modes. Under O-2/RFG mode, CO, NO, N2O, and SO2 mass concentrations (mg/MJ) are lower compared to O-2/N-2 mode. Higher oxygen concentrations increase combustion efficiencies for both cases. Similar O-2 concentrations result in similar combustion efficiencies. Oxy-combustion results are considered as the most favorable option for CO2 capture along with the competitive combustion efficiencies and less emissions per unit energy.", 
  "headline": "Effect of Recycled Flue Gas Ratio on Combustion Characteristics of Lignite Oxy-Combustion in a Circulating Fluidized Bed", 
  "identifier": 89255, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Effect of Recycled Flue Gas Ratio on Combustion Characteristics of Lignite Oxy-Combustion in a Circulating Fluidized Bed", 
  "url": "https://aperta.ulakbim.gov.tr/record/89255"
}