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All Journal Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Agrointek Rekayasa Mesin Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin Machine : Jurnal Teknik Mesin Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) The Indonesian Journal of Infectious Diseases Jurnal Pengabdian Magister Pendidikan IPA Jurnal Riset Teknologi Industri Jurnal Abdi Insani Jurnal Pendidikan Teknik Mesin Undiksha MACHINERY: Jurnal Teknologi Terapan Jurnal Bakti Nusa Jurnal Karya Pengabdian Teknik Mesin Jurnal Pepadu Energy, Materials and Product design
Ida Bagus Alit
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The THE FERFORMANCE ANALYSIS OF ELECTRIC CAR OF THE UNIVERSITY OF MATARAM : THE FERFORMANCE ANALYSIS OF ELECTRIC CAR OF THE UNIVERSITY OF MATARAM Yudhyadi, I Gusti Ngurah Ketut; Pandiatmi, Pandri; Dyah S., Emmy; Alit, Ida Bagus; Sinarep
Energy, Materials and Product Design Vol. 4 No. 1 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v4i1.6342

Abstract

The university of Mataram car suspension and its control was designed to minimize the vibration produced by unwanted external inputs i.e., changes of road contours that reach the car passengers. This effort will provide the passenger with higher safety and comfort. In this study, a quarter car model with two degree of freedoms (2 DOF) was designed and developed its mathematical model. The effects of the road contour were studied and analyzed in term of overshoot and settling time that affect the main body, suspension as well as the passenger. The MATLAB Simulink model was programmed to mimic the behavior of the suspension and its response to the input which was the road contour (step function). This approach was very helpful to reduce the effort, time and money. The result shows that with implementation of the design parameters chose, the responses of the system (displacement and velocities) were satisfied the criteria of comfortable (there are no overshoot), however, the settling time was seconds that much higher than expected which will disturb the passenger comfort. This point shows that the suspension design needs further improvement with consideration of using active suspension with adequate control system.
The Pengaruh Sudut Kemiringan Kaca Terhadap Performa Distilator Surya Alit, Ida Bagus
MACHINERY Jurnal Teknologi Terapan Vol. 6 No. 3 (2025): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

This study aims to analyze the effect of varying the inclination angle of the glass cover on the performance efficiency of a solar distillator. The angles investigated were 35°, 40°, and 45°, with the main observed parameters being the amount of distilled water produced and the thermal efficiency of the system. An experimental method was employed using a single-basin type solar still tested under natural solar radiation conditions. The results showed that the glass inclination angle significantly affects the performance of the distillator. At a 35° inclination, the distillator produced the highest volume of distilled water compared to the other two angles. Thermal efficiency also reached its maximum at this angle, indicating that a shallower glass angle allows for more effective heat absorption and condensation. In contrast, at 40° and 45°, both the distillate output and efficiency decreased. This is presumed to be due to an increased reflection angle of solar radiation and reduced energy absorption by the water in the basin. The study concludes that a glass inclination angle of 35° provides optimal performance for solar distillation under the specific geographical and climatic conditions in which the experiment was conducted.
Co-Authors Achmad Zainuri Adhi W.A., I G.A.K. Chatur agus dwi catur Aldi Mukaddim, Aldi Anggani, Yudi Arif Mulyanto Chatur Adi.W.A, I.G.A.K Didit Yudhanto Dyah S., Emmy Emmy dyah S Eustachius Hagni Wardoyo Gede Wira Buanayuda Gilang Rezeki, Gilang I G.A.K Chatur Adhi W.A. I Gede Bawa Susana I Gede Bawa Susana I Kade Wiratama I Ketut Junitha I Ketut Wiryajati I Made Adi Sayoga I Made Adi Sayoga I Made Mara I Made Nuarsa I Made Nuarsa I Made Nuarsa, I Made I Made Suartika I Wayan Joniarta I.D.K. Okariawan I.M Mara I.M. Mara I.M. Nuarsa Ida Ayu Eka Widiastuti Irwan Humaidi Irwan Humaidi, Irwan M. Mirmanto, M. Made Mara, Made Made Wirawan Made Wirawan made wirawan Made Wirawan, Made Maharsa Pradityatama Mas'ud Mas'ud Monalisa Nasrul N. Nurchayati, N. Nur Kaliwantoro Nur Kaliwantoro Pandri Pandiatmi Perdana Putra, I Ketut Prima Belia Fathana Putu Aditya Wiguna Putu Aditya Wiguna Rifana Cholidah Rudi Sutanto, Rudi Rudy Sutanto Sinarep Siti Rahmatul Aini Srikus Saptaningtyas, Rini Sujita Darmo Sujita Darmo Sujita Darmo Sujita Sujita Sujita Sujita Sujita, Sujita Sultan Sultan Syahrul Yesung Allo Padang Yudhyadi, I Gusti Ngurah Ketut Zainuri Achmad