Experimental study of droplet combustion and diesel engine characteristics for azolla biodiesel

dc.authoridFemilda Josephin Joseph Shobana Bai / 0000-0003-0249-9506en_US
dc.authoridEdwin Geo Varuvel / 0000-0002-7303-3984en_US
dc.authorscopusidEdwin Geo Varuvel / 25225283500en_US
dc.authorscopusidFemilda Josephin Joseph Shobana Bai / 57973036900
dc.authorwosidFemilda Josephin Joseph Shobana Bai / AGG-4255-2022en_US
dc.authorwosidEdwin Geo Varuvel / AAE-5222-2022en_US
dc.contributor.authorGanapathy, Saravanan Chidambaram
dc.contributor.authorSeshadri, Thiruvenkatachari
dc.contributor.authorJayaraman, Sasikala
dc.contributor.authorRaman, Vallinayagam
dc.contributor.authorMalaiperumal, Vikneswaran
dc.contributor.authorVaruvel, Edwin Geo
dc.contributor.authorJoseph Shobana Bai, Femilda Josephin
dc.date.accessioned2022-12-12T05:34:31Z
dc.date.available2022-12-12T05:34:31Z
dc.date.issued2022en_US
dc.departmentİstinye Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractThis study pertains to studying the feasibility of the third-generation biodiesel obtained from one of the algae species known as Azolla microphylla by exploring their fundamental droplet combustion behavior and diesel engine characteristics. Firstly, the droplet evolution and burn rate are investigated for diesel, Azolla100, and Azolla50 (50% biodiesel +50% diesel) based on the experimental study of suspended droplet combustion. The diesel droplet showed steady combustion with linear regression for the decrease in droplet surface with time throughout its lifetime, while the Azolla100 and Azolla50 droplets showed a linear trend initially, and after a certain point, they resulted in a non-linear trend as a result of disruptive burning. The evaporation and burn rate was found to be higher for Azolla100 and Azolla50 than diesel during the steady burning period and thereafter it decreased with increasing Azolla concentration. The time evolution of droplet combustion images indicated that with increasing biodiesel concentration, the combustion duration was decreased due to secondary droplet ejections and microexplosion, and the residue burning duration was increased. The microexplosion increased the rate of combustion, however, droplet ejection resulted in incomplete combustion. Secondly, the engine experiments were performed for Azolla50 at different fuel injection pressures. The results showed that in-cylinder pressure and Brake thermal efficiency (BTE) for Azolla50 at 300 bar injection pressure were lower than diesel due to limitations with the physical properties of biodiesel. In order to improve the engine characteristics of Azolla50, this study increased the fuel injection pressure to 900 bar. As a result, the BTE for Azolla50 at 900 bar injection pressure is improved by 9.2% and 10.2% at low and full load conditions, respectively, compared to Azolla50 at 300 bar injection pressure. Overall, the spray-driven combustion for Azolla50 is limited by the physical properties of the biodiesel, which affects the mixture formation. On the other hand, the microexplosion and droplet ejection observed with the biodiesel during the combustion study would favor the combustion by improving the atomization and mixing process.en_US
dc.identifier.citationGanapathy, S. C., Seshadri, T., Jayaraman, S., Raman, V., Malaiperumal, V., Arondoss, M. B., ... & Varuvel, E. G. (2022). Experimental study of droplet combustion and diesel engine characteristics for Azolla biodiesel. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 44(4), 10359-10377.en_US
dc.identifier.doi10.1080/15567036.2022.2146238en_US
dc.identifier.endpage10377en_US
dc.identifier.issn1556-7036en_US
dc.identifier.issn1556-7230en_US
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85142343379en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage10359en_US
dc.identifier.urihttp://dx.doi.org/10.1080/15567036.2022.2146238
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3457
dc.identifier.volume44en_US
dc.identifier.wosWOS:000889644200001en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorJoseph Shobana Bai, Femilda Josephin
dc.institutionauthorVaruvel, Edwin Geo
dc.language.isoenen_US
dc.publisherTAYLOR & FRANCIS INCen_US
dc.relation.ispartofENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTSen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectAzollaen_US
dc.subjectDieselen_US
dc.subjectDropleten_US
dc.subjectCombustionen_US
dc.subjectEngine Characteristicsen_US
dc.titleExperimental study of droplet combustion and diesel engine characteristics for azolla biodieselen_US
dc.typeArticleen_US

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