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Sutrisno Sutrisno
Petra Christian University
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Lobe Separation Angle (LSA) Terhadap Performa Motor Bakar Honda Supra X 125 R Steven Roderica Wijaya; Sutrisno Sutrisno
Mechanova Vol 7 (2018): Semester gasal 2018-2019
Publisher : Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.606 KB)

Abstract

Abstrak. Sepeda Motor adalah alat transportasi yang umum dan banyak sekali digunakan oleh masyarakat untuk kebutuhan setiap harinya. Peningkatan performa kendaraan dalam hal ini motor, penggantian camshaft standart ke camshaft racing adalah yang paling popular di kalangan masyarakat yang menginginkan kendaraannya melaju kencang. Tetapi belum diketahui secara pasti berapa LSA yang paling tepat agar camshaft dapat digunakan dengan efektif.Studi literatur yang dilakukan, LSA camshaft yang dapat dimodifikasi. Melalui literatur tersebut LSA 100O -105O adalah Low LSA sedangkan 106O -110O adalah Medium LSA dan <110O adalah Over LSA, dari literature tersebut dibuat variabel LSA dengan LSA 104O 108O dan 112O. dari ketiga desain yang ada, diambil desain terbaik untuk diuji kembali dan melihat performa yang dihasilkan oleh setiap camshaft.Hasil yang didapat dari penelitian ini adalah Medium LSA (108O) memiliki daya 9.10 HP dengan kenaikan 5.44% disbanding dengan Low LSA dan Over LSA dikarenakan fenomena aliran yang dihasilkan dan kompresi dari piston yang sangat baik.
Investigation on Biomass Briquette as Energy Source from Waste Leaf Cerbera Manghas Willyanto Anggono; Fandi D. Suprianto; Sutrisno Sutrisno; Andreas W. Kasrun
International Journal of Industrial Research and Applied Engineering Vol 1, No 1 (2016)
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (407.448 KB) | DOI: 10.9744/JIRAE.1.1.11-14

Abstract

Indonesia is a tropical country and has abundant varieties of plants but has not been utilized to the fullest. One of the plants that are often encountered in the community is Cerbera manghas. Cerbera manghas is known as one of the trees that have solid roots; thus, it is widely used for adding greenery both on the roadside and the residential areas of Surabaya. Although beneficial for shade and the reduction of air pollution in urban areas, waste from the leaves of this plant become a serious issue for the cleanliness of the city. Organic solid waste that comes from the falling leaves have the potential to be used as a solid fuel alternative in the form of briquettes when processed appropriately. This study aims to investigate the potential of Cerbera manghas leaves waste to be used as raw material of biomass briquettes with tapioca as a binder, to evaluate the property of the resulted briquettes using ultimate analysis, proximate analysis, and also to find the effect of the composition of tapioca to the heating value of the biomass briquettes. Heating values ​​of five mixtures with various tapioca compositions of 10%, 20%, 30%, 40%, and 50% were evaluated using an oxygen bomb calorimeter. The experimental results showed that the biomass briquettes made of Cerbera manghas leaves waste can be made using tapioca as a binder. The greater the percentage of the mass of tapioca in the briquettes, the lower heating value generated. Biomass briquettes made of Cerbera manghas leaves waste can be made into a source of sustainable energy with the optimal composition of 90% waste leaves and 10% tapioca.
Co-Authors Andreas W. Kasrun Fandi D. Suprianto Steven Roderica Wijaya Willyanto Anggono