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All Journal Asian Journal Science and Engineering Jurnal Inovasi dan Teknologi Pembelajaran
Dwi Pebrianti
International Islamic University, Malaysia
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Optimization Study of the Ratio of Bioethanol Bioaceton Ron 90 on the Power and Emissions of a 110cc Gasoline Motor Syva Kurniawan; Dwi Pebrianti
Asian Journal Science and Engineering Vol 2 No 1 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i1.759

Abstract

Fossil fuels have become one of the main causes of increasing pollution in the world, especially in Indonesia. Comparisons between proposed bio-acetone fuel blends and other biofuels were introduced in a unique study. bio-acetone is a promising alternative and can improve performance and emissions over the others. The aim of the research was to determine the optimization of the ratio of bioethanol, bioacetone-Ron 90 to power and exhaust emissions (HC and CO). Fuel mixture ratio bioethanol, bioacetone - RON 90 ((3:7:10), (5:5:10), (7:3:10), (10:5:5), (7,5:7, 5:5), (5:10:5), (2,5:2,5:15), (3,5:1,5:15), (1,5:3,5:15)) and engine speed (2000, 3000, 4000, 5000, 6000) 110cc gasoline engine rpm. The data processing method uses the Response surface method. The results of research on power and emission tests that have been optimized, the optimum value for fuel ratio power at standard spark plugs, at a ratio of 1.5:3,5:15 and Rpm 4424.24 with a power of 8.02065 HP. The optimum value for HC emissions is at a ratio of 3:7:10 at Rpm 4222.22 and HC gas emissions are 43.9879 ppm. Optimum value for CO emissions at a ratio of 7.5:7.5:5 and 2000 rpm with a CO emission of 0.208712%. Keywords: Optimization Bioethanol, Biocetone, Power and Emissions
Designing a laboratory assistant attendance system using Radio Frequency Identification (RFID) technology based on IOT Maulana Krisna Bayu Pratama; Yulia Puspita Dewi; Tri Ika Jaya Kusumawati; Dwi Pebrianti
Jurnal Inovasi dan Teknologi Pembelajaran Vol. 11 No. 1 (2024)
Publisher : Universitas Negeri Malang in collaboration with APSTPI and IPTPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um031v11i12024p044

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Abstrak: Tujuan penelitian ini untuk menghasilkan perangkat presensi RFID (Radio Frequency Identification) sebagai sistem presensi asisten lab di Lab Information and Communication of Technology (ICT) Terpadu Budi Luhur untuk mengatasi permasalahan yang sedang terjadi seperti antrean, kerumitan saat menginput, dan manipulasi waktu kehadiran sampai kepulangan. Pengembangan sistem ini menggunakan metode agile yang bisa menangani risiko ketidakberhasilan dalam tahap pengembangan sistem skala kecil maupun besar. Tahapan merancang sistem memanfaatkan Unified Modeling Language (UML). Pengumpulan data dilakukan dengan teknik observasi, wawancara, dan kuesioner terhadap lingkungan LAB ICT Terpadu Budi Luhur. Hasil penilaian ahli kelayakan pengujian mencapai persentase 90 (sangat pantas), pengujian praktis mencapai persentase 92 (sangat pantas), uji keamanan mencapai persentase 90 (layak), dan uji coba kelompok besar mencapai persentase 90 (sangat pantas). Dapat disimpulkan perancangan sistem dengan menggunakan UML dengan teknologi RFID dapat meningkatkan efektivitas presensi serta menyelesaikan permasalahan dalam presensi. Abstract: The current study attempted to generate an RFID (Radio Frequency Identification) attendance device as a bridge of attendance for the Computer Lab Assistant of Budi Luhur to overcome ongoing problems such as queues, complexity when inputting, and manipulation of attendance time to return. The development of this system uses agile methods that can handle the risk of failure in the small and large-scale system development stages. The system design stage uses UML. The data was collected using observation, interviews, and questionnaires in the Budi Luhur Integrated ICT LAB environment. The outcomes of the viability examination expert assessment attained a rate of 90 percent (highly achievable), the practicality test achieved a level of 92 (highly achievable), the security test attained a level of 90 (practicable), the large-group trial achieved a level of 90 (highly achievable). It can be concluded that designing a system using UML with RFID technology can increase the effectiveness of attendance and solve problems in it.
Co-Authors Maulana Krisna Bayu Pratama Syva Kurniawan Tri Ika Jaya Kusumawati Yulia Puspita Dewi