Desain mekanisme pemasukan Syngas dan uji unjuk kerja motor diesel stasioner sistem Dual Fuel Biodiesel Syngas hasil Gasifikasi

Bawono, Agi Noto (2017) Desain mekanisme pemasukan Syngas dan uji unjuk kerja motor diesel stasioner sistem Dual Fuel Biodiesel Syngas hasil Gasifikasi. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

[img]
Preview
Text
2114105031-Undergraduate-theses.pdf - Published Version

Download (5MB) | Preview

Abstract

Saat ini penerapan sistem dual fuel syngas hasil gasifikasi secara langsung menggunakan sistem venturi menghasilkan subtitusi biodiesel oleh syngas hanya 50% saja, Sedangkan aplikasi pada sistem tidak langsung dengan pengaturan syngas dapat mencapai subtitusi 74%. Salah satu parameter yang mempengaruhi subtitusi ini adalah rancangan venturi. Penelitian ini bertujuan untuk meningkatkan subtitusi biodiesel oleh syngas dengan cara memperkecil diameter throat pada venturi untuk meningkatkan kevakuman. Penelitian dimulai dengan pengujian mesin diesel generator set sistem dual fuel dengan venture mixer yang eksisting, yaitu diameter throat 22 mm dan selanjutnya divariasikan dengan diameter 19.8 mm dan 17.6 mm. Mesin dioperasikan pada putaran konstan sebesar 2000 rpm dengan variasi pembebanan mulai dari 200 W sampai dengan 2000 W. Parameter yang diukur pada penelitian ini meliputi: waktu konsumsi bahan bakar biodiesel dengan volume 10 ml, pitot syngas (mm), temperatur diesel (oli, pendingin, gas buang) Co, arus listrik (A), tegangan (V). Hasil yang didapat dari penelitian ini adalah dengan penggunaan venturi mixer dengan diameter throath 17,6 mm dengan 2 lubang masukan syngas akan meningkatkan proporsi jumlah syngas sehingga mengurangi konsumsi biodiesel rata-rata sebesar 49,919% dari kondisi standar. Peningkatan massflowrate syngas melalui venturi mixer ke dalam mesin diesel mensubtitusi penggunaan biodiesel oleh syngas maksimal sebesar 59,016%. Nilai AFR rata-rata mengalami penurunan sebesar 11% dari nilai AFR standar single fuel. Dengan meningkatnya proporsi syngas mengakibatkan nilai spesific fuel consumption (sfc) biodiesel mengalami penurunan rata-rata mencapai 48,051 % dari kondisi standar single fuel. Nilai spesific fuel consumption (sfc) dual fuel mengalami kenaikan rata-rata sebesar 8,408% dari kondisi sfc diameter throat eksisting. Effisiensi thermall sistem dual fuel secara umum mengalami kenaikan dengan penambahan proporsi syngas rata-rata sebesar sebesar 96,052% dari standar biodiesel single fuel. Bila dibandingkan dengan penggunaan venturi mixer diameter eksisting nilai effisiensi thermall sistem dual fuel mengalami kenaikan sebesar 11,55%. Penambahan proporsi syngas mengakibatkan nilai rata-rata energi per siklus pada sistem dual fuel mengalami penurunan sebesar 20,875% dari kondisi standar biodiesel single fuel. Nilai rata-rata energi per siklus dual fuel mengalami kenaikan 4,628% dari kondisi venturi mixer berdiameter throath eksisting. =================================================================================== The current application of the system of dual fuel syngas gasification directly using the venturi system produces the substitution of biodiesel by syngas is only 50%, whereas the indirect system application with the settings of the syngas can reach 74% of substitution. One of the parameters that affect this substitution is a venturi design. This research aims to improve the substitution of biodiesel by syngas by way of reducing the diameter of the throat on a venturi to increase the race. The research starts with testing machines diesel generator sets of dual fuel system with an existing mixer venture, namely throat diameter of 22 mm and vary with the diameter of 27.5 mm and 4.7 mm. Machine-operated on a constant round of 2000 rpms with variation of loading ranging from 200 W to 2000 W Parameters measured in this study include: time fuel consumption of biodiesel by volume 10 ml pitot, syngas (mm), the temperature of diesel (oil, coolant, exhaust gas) co., an electric current (A), voltage (V). The results obtained from this research is the use of venturi mixer with diameter throath 17.6 mm with 2 holes will increase the proportion of syngas input number of syngas biodiesel consumption so as to reduce an average of 49.919% of standard conditions. Improved massflowrate venturi mixer via syngas into diesel engine mensubtitusi the use of biodiesel by syngas maximum of 59,016%. The average AFR value decreased by 11% from the value of the AFR standard single fuel. With the increasing proportion of syngas resulted in the value of specific fuel consumption (sfc) of biodiesel has decreased on average achieve 48.051% of standard single fuel conditions. The value of the specific fuel consumption (sfc) dual fuel increase an average of 8.408% of throat diameter of existing conditions of the sfc. A dual fuel system thermall efficiency generally increase with the addition of a proportion of the average of syngas of 96.052% of the biodiesel standard single fuel. When compared with the use of venturi mixer diameter value of the existing dual fuel system thermall efficiency increase of 11.55%. The addition of the proportion of syngas resulted in average energy per cycle on a dual fuel system decreased by 20.875% of biodiesel fuel single standard condition. The value of the average energy per cycle dual fuel increase 4.628% of venturi mixer conditions existing throath in diameter.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: diesel dual fuel; syngas; biodiesel; variasi diameter throat venturi mixer
Subjects: T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design
T Technology > TJ Mechanical engineering and machinery > TJ799 Diesel motor--Electronic control.
Divisions: Faculty of Industrial Technology > Mechanical Engineering > (S1) Undergraduate Theses
Depositing User: - AGI NOTO BAWONO
Date Deposited: 03 Mar 2017 03:02
Last Modified: 03 Mar 2017 03:02
URI: http://repository.its.ac.id/id/eprint/2458

Actions (login required)

View Item View Item