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Fundamental investigations for lowering emissions and improving operability

Propulsion and Power Research 2018年第3期7卷 197-204页

作者： Xiao Ren Xin Xue Kyle B.Brady chih-Jen Sung hukam c.mongia Department of Mechanical Engineering University of ConnecticutStorrsCT 06269USA National Research council Air Force Research LaboratoryWPAFBOH 45433USA cSTI Associates LLCYardleyPA 19067USA

This paper first highlights recent developments in lean direct injection(LDI)combustion *** view of the needs and opportunities to lower emissions and expand the operability range of LDI,fundamental research has been undertaken to elucidate the effects of air swirler vane angle,air swirler rotation direction,and overall equivalence ratio on the LDI flow field and flame structure/***,additional investigation has been conducted to understand the fundamental differences between representative LDI and airblast injectors in order to highlight the importance of the flare feature to LDI venturi *** results of these fundamental studies are discussed to help identify possible areas for optimization to generic LDI designs that may improve individual swirler performance.

关键词： Gas turbine combustor Low emissions Lean direct injection Airblast injector Swirl-venturi configuration

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Organo-petrographic and geochemical characteristics of Gurha lignite deposits,Rajasthan,India:Insights into the palaeovegetation,palaeoenvironment and hydrocarbon source rock potential

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Geoscience Frontiers 2020年第3期11卷 965-988页

作者： Runcie Paul Mathews Bhagwan DSingh Vikram Partap Singh Alpana Singh hukam Singh Mahesh Shivanna Suryendu Dutta Vinod A.Mendhe Rimpy chetia DST-Birbal Sahni Institute of Palaeosciences Lucknow226007India Department of Earth Sciences Indian Institute of Technology BombayMumbai400076India cSIR-central Institute of Mining and Fuel Research Dhanbad826015India

The sedimentary sequence containing lignite deposits in Gurha quarry of the Bikaner-Nagaur Basin(Rajasthan)has been *** samples from lignite and allied shale horizons were evaluated for petrographical,palynological,palynofacies and organic geochemical inferences,to depict the source flora and to reconstruct the palaeodepositional conditions prevailed during the *** assessment for the hydrocarbon generation potential of these deposits has also been *** results revealed the dominance of huminite macerals and phytoclasts organic matter(OM) indicating the existence of forested vegetation in the vicinity of the depositional site.A relatively high terrigenous/aquatic ratio(TAR) and the carbon preference index(cPI) are also suggesting the contribution of higher plants in the peat ***,the n-alkane distributions,maximizing at n-c17 and n-c29,showed inputs from the algal communities along with the higher plant derived organic *** palynomorphs of the families Onagraceae,Meliaceae,Arecaceae,Rhizophoraceae,Rubiaceae,ctenolophonaceae, *** with oleanene and ursane types of triterpenoids suggest the contribution from angiosperms source ***,the presence of Araucareaceae and Podocarpaceae pollen grains shows the existence of gymnosperms ***,the presence of tetracyclic diterpanes;demethylated entbeyerane,sandaracopimarane,pimarane,and Kaurane type of compounds confirms the contribution of *** variation in the values of the coefficient of non-equality(H:0.68%-7.56%),the standard deviation(8:0.04%-0.16%) and the coefficient of variability(V:16.10%-46.47%),also shows the heterogeneity in the source organic *** various petrographical indices,palynological entities,and geochemical parameters indicate that the peatforming vegetation was accumulated under a mixed environment and fluctuating hydrological *** interpretation of palynofacies data on APP(Amorphous organ

关键词： Palynofacies Biomarkers Rock-Eval Palaeocene deposits Bikaner-Nagaur Basin

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