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Analisis Penggunaan Bahan Bakar Campuran Pertalite dengan Bioetanol dari Tebu Terhadap Konsumsi Bahan Bakar dan Emisi Gas Buang pada Sepeda Motor Injeksi Deded Purnama; Ahmad Arif; Erzeddin Alwi; Toto Sugiarto
MSI Transaction on Education Vol 4 No 3 (2023): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v4i3.117

Abstract

Meningkatnya pertumbuhan jumlah kendaraan bermotor dapat menimbulkan dampak negatif, diantaranya konsumsi bahan bakar fosil yang meningkat dan polusi lingkungan yang disebabkan oleh emisi gas buang pada sepeda motor. Salah satu jenis bahan bakar yang banyak dikonsumsi adalah pertalite sebanyak 79% dibandingkan jenis bahan bakar bensin lainnya. Upaya yang diperlukan dalam mengatasi dampak tersebut yaitu dilakukan pencampuran bahan bakar pertalite dengan bioetanol dari tebu. Penelitian ini bertujuan untuk menurunkan konsumsi bahan bakar dan mengurangi emisi gas buang pada sepeda motor. Variasi bahan bakar yang digunakan adalah BE0, BE5, BE10, BE15, BE20, dan BE25. Hasil penelitian menunjukkan, penurunan terbesar konsumsi bahan bakar terjadi pada variasi bahan bakar BE25 sebesar 19% dan penurunan emisi gas buang karbon monoksida (CO) dan hidrokarbon (HC) terjadi pada variasi bahan bakar BE25 sebesar 28% dan 61% dibandingkan dengan variasi bahan bakar standar BE0. Increasing growth in the number of motorized vehicles can have negative impacts, including increased consumption of fossil fuels and environmental pollution caused by exhaust emissions from motorcycles. One type of fuel that is widely consumed is pertalite as much as 79% compared to other types of gasoline. The effort needed to overcome this impact is to mix pertalite fuel with bioethanol from sugar cane. This research aims to reduce fuel consumption and reduce exhaust emissions on motorbikes. The fuel variations used are BE0, BE5, BE10, BE15, BE20, and BE25. The research results showed that the largest reduction in fuel consumption occurred in the BE25 fuel variation by 19% and the reduction in carbon monoxide (CO) and hydrocarbon (HC) exhaust emissions occurred in the BE25 fuel variation by 28% and 61% compared to the fuel variation standard BE0.
Kontribusi Penerapan Aspek K3 Terhadap Hasil Belajar Siswa Mata Pelajaran PMKR Kelas XI Jurusan TKR di SMKN 2 Payakumbuh Pinto Pratama Afosma; Dwi Sudarno Putra; Milana; Ahmad Arif
MSI Transaction on Education Vol 4 No 3 (2023): MSI Transaction on Education
Publisher : Minangkabau Scholar Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46574/mted.v4i3.120

Abstract

Penelitian ini bertujuan untuk mengukur Kontribusi Penerapan Aspek keselamatan dan kesehatan kerja Terhadap Hasil Belajar Siswa Mata Pelajaran PMKR Kelas XI Jurusan TKR di SMKN 2 Payakumbuh. Penerapan aspek K3 di Sekolah Menengah Kejuruan berpengaruh pada hasil belajar pratikum siswa, dengan tujuan terciptanya hasil belajar yang maksimal ada kaitan penting akan penerapan aspek K3. Metode penelitian ini ini adalah penelitian deskriptif korelasional yang bertujuan untuk menemukan ada tidaknya hubungan antara Aspek K3 dengan hasil belajar pratikum siswa. Berdasarkan pengujian hipotesis, diperoleh nilai r hitung > r tabel 0.266. Setelah dilakukan uji t, diketahui bahwa t hitung > tabel 1,673. Hal ini menunjukan bahwa hipotesis yang menyatakan bahwa terdapat hubungan positif antara kedua variabel (jelas) dengan taraf signifikan 5% secara empiris. dapat disimpulkan bahwa Penerapan Aspek K3 berkontribusi terhadap Hasil Belajar Siswa. This research aims to measure the contribution of implementing occupational health and safety aspects to the learning outcomes of students in the PMKR class XI TKR department at SMKN 2 Payakumbuh. The application of K3 aspects in Vocational High Schools influences students' practical learning outcomes, with the aim of creating maximum learning outcomes, there is an important connection with the application of K3 aspects. This research method is descriptive correlational research which aims to find out whether there is a relationship between K3 aspects and students' practical learning outcomes. Based on hypothesis testing, the calculated r value was 0.753 > r table 0.266. After carrying out the t test, it is known that t count is 5.231 > table 1.673. This shows that the hypothesis states that there is a positive relationship between the two variables (clear) with an empirical significance level of 5%. it can be concluded that the application of K3 aspects contributes to student learning outcomes.
The Fuel System Modification To Strengthen Achievement And The Prospect Of Utilizing Gasoline Ethanol Blended With Water Injection Wawan Purwanto; Tung-Kwan Liu; Hasan Maksum; Ahmad Arif; Muhammad Yasep Setiawan; Muhammad Nasir
Journal of Applied Engineering and Technological Science (JAETS) Vol. 5 No. 2 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v5i2.3249

Abstract

This research proposes a fuel system conversion from a carburetor to an electronic fuel injection (EFI), to save fossil fuels using gasoline-ethanol combined with water injection. Beneficial as an offer for Indonesian motorcycle environmental friendliness in terms of exhaust emissions. The goal of this study is to improve engine performance and accommodate technology for the deployment of ethanol gasoline implementations. The experiment was conducted using fuel with a ration octane number (RON) of 92, gasoline-ethanol was executed up to E25 then applied water injection (Wi). The results show that converting a conventional carburetor to EFI and additional water injection increases engine performance, mileage, and reduces exhaust emissions.
The Feasibility Study of Light Vehicle Engineering Electrical Practice Facilities and Infrastructure at Vocational Education School Ahmad Arif; Ambiyar Ambiyar; Nurhasan Syah; R. Chandra; Wawan Purwanto; Nuzul Hidayat; Muhammad Yanda
Edumaspul: Jurnal Pendidikan Vol 6 No 2 (2022): Edumaspul: Jurnal Pendidikan
Publisher : Universitas Muhammadiyah Enrekang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33487/edumaspul.v6i2.4877

Abstract

The completeness and feasibility of infrastructure in the world of education is something that must be considered and fulfilled. This has an impact on learning outcomes and students' abilities. This study aims to determine the feasibility of facilities and infrastructure in the light vehicle engineering electrical practice workshop at Padang 1 State Vocational Education School. This research uses descriptive analysis method. Research data obtained from interviews, documentation, and direct observation at school. The data on facilities and infrastructure that has been obtained is then compared with the standards of facilities and infrastructure listed in the Regulation of the Minister of Education of the Republic of Indonesia number 40 of 2008 and the National Education Standards Agency number 1049-P2 of 2010/2011. The results showed that the level of feasibility of the facilities and infrastructure for the electrical practice light vehicle engineering Padang 1 State Vocational Education School was 56.42% and 53.32% which were included in the feasible category. Existing electrical practice learning facilities and infrastructure can still be used and schools are expected to improve their quality.