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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; Made Wirawan
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.
PELATIHAN PRODUKSI UNTUK MENGOPTIMALKAN USAHA KECIL KERIPIK PANGSIT DI DESA LENDANG NANGKA Bawa Susana, I Gede; Wiryajati, I Ketut; Adhi W.A., I G.A.K. Chatur; Perdana Putra, I Ketut; Alit, Ida Bagus
Jurnal Pepadu Vol 6 No 1 (2025): Jurnal Pepadu
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v6i1.6294

Abstract

Economic development in the dumpling chips business requires cooperation from the community and related agencies. One of the efforts made by the community service team is training in pangsit chip production. This is necessary because small businesses in Lendang Nangka Village face various challenges in developing their businesses. Production is still carried out traditionally, which has an impact on the lack of uniformity in product quality. One of the main challenges is the limited knowledge and skills needed to produce quality and consistent products. The purpose of Community Service is to strengthen small entrepreneurs in Lendang Nangka Village by improving production skills so that they can make good quality and consistent products. The activity method through training carried out by the Community Service Team and the Cooperatives and SMEs Service, covers aspects of improving technical skills in the production process. Through the production process, training is provided on how to enhance the quality of the product through the use of better techniques and raw materials. The results of community service give an understanding and skills related to pangsit chips raw materials and how to print, fry, dry, and package products. This can be used as a guideline to ensure that the pangsit chips produced are of good quality and can be stored properly. By overcoming existing challenges and utilizing existing opportunities, this program is expected to have a positive impact on regional economic development. Some things related to packaging are new knowledge for pangsit chip artisans. Pangsit chips artisans are interested in using packaging other than plastic to maintain product quality and use packaging for various sizes of their products.
Thermal Performance of LPG Stove as Heat Source of Rotary Dryer for Drying Corn for Small Farmers Alit, Ida Bagus; Bawa Susana, I Gede
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.537-546

Abstract

Sunlight to dry post-harvest food materials such as corn highly depends on the weather. When it is cloudy or rainy, drying automatically stops. On the other hand, biomass dryer models such as rice husks are rather difficult to regulate the drying temperature. This study aims to create a dryer model that produces uniform temperatures and is easy for small farmers to operate. It is a rotary dryer with liquefied petroleum gas (LPG) energy. This study tested a small-scale rotary dryer based on drying time to reduce water content by up to 14%. The test used corn samples weighing 10 kg, 15 kg, and 20 kg with a water content of 18%. Testing to reduce water content to 14% is based on the Indonesian National Standard. The results showed that corn samples weighing 10 kg, 15 kg, and 20 kg required time and LPG requirements of 37 minutes and 0.092 kg, 52 minutes and 0.132 kg, and 90 minutes and 0.281 kg, respectively. The drying temperatures were 54.67°C, 55.96°C, and 57.63°C, respectively. Rotary dryers are useful for small farmers in developing areas who do not yet understand the technology. The short drying time allows this dryer machine to repeatedly dry corn. Keywords: Rotary dryer, Liquefied petroleum gas, Corn drying, Drying rate.
Analisa Kualitas dan Kuantitas Biogas dari Kotoran Ternak Mara, Made; Alit, Ida Bagus
Dinamika Teknik Mesin Vol 1, No 2 (2011): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Our life is completely dependent on a reliable and adequate supply of energy. In other to reduce dependence on fossil fuels, the use of animal dung in producing a renewable alternative source of energy has been proved using cow dung. Concerns over the environment and the rising costs for energy and waste water treatment have caused a resurgence of interest in anaerobic treatment and subsequent use of the biogas produced during this treatment of organic wastes as fuel. Biogas from manure wastes has become a potential renewable energy source for both domestic and commercial usage especially in West Nusa Tenggara. This study aims to investagate the quality and quantity of biogas produced from animal dung. The Cows, buffaloes and horses dung were used in this research using anaerobic biotank proses. The animal dungs were digested in ambient temperature and the water composition of degester was also analysed. The result shows that total volume of biogas produced by horse dung is 577.735 liters, and then cow dung is 373.839 liters, and the smallest production generated by buffalo dung which is 352.975 liters. Moreover, biogas from horse dungs generated the highest power of combustion, followed by cow dung, and buffalo dung, 732,425 watt, 556,521 watt 539,759 watt resfectively.
ANALISA UNJUK KERJA MOTOR BAKAR BERBAHAN BAKAR BIOGAS TERMURNIKAN BERBASIS ABSORBER Fe2O3 Sutanto, Rudy; Alit, Ida Bagus; Nurchayati, N.
Dinamika Teknik Mesin Vol 4, No 2 (2014): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v4i2.56

Abstract

Long-term aim of this research is to obtain a biogas what the renewable natural gas quality and can be used to fuel an electric generator to support the availability of electricity in the region of small islands. Specific targets to be achieved is to determine whether the binding of H2S in biogas can raise engine peformance of the machine, information technology and the active materials so comprehensive to absorb hydrogen sulfide gas as materials of the textbook writing and articles for national journals. This research will be conducted a biogas testing in the engine performance, seen from the engine rotation (1500, 2500, 3500 and 4500 rpm) of the electric power generated and subtlety spin machine (braking force, fuel consumption) in both the before purified biogas and biogas has been purified. Results of the research that has been conducted in both the before purified biogas and biogas has been purified on peformance engine that does not change significantly for the better performance of the engine torque, effective power and fuel consumption (biogas) to treat a wide variety. Effect of reduction of H2S contained in the biogas no significant effect on engine performance but are more inclined towards corrosive metal material. Keywords: biogas, performance, torque, effective power
ANALISA PENGARUH VARIASI BENTUK ABSORBER PADA ALAT DESTILASI AIR LAUT TERHADAP KENAIKAN SUHU AIR DALAM RUANG PEMANAS DAN JUMLAH PENGUAPAN AIR YANG DIHASILKAN Mukaddim, Aldi; Wirawan, Made; Alit, Ida Bagus
Dinamika Teknik Mesin Vol 3, No 2 (2013): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

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Abstract

Clean water is a requirements of very important human life. Indonesia is a maritime country that has many islands surrounded by ocean, had a decreased clean water problem. One of the method to be used for obtain clean water is sea water distillation process. One of the most important tools is absorber distillation. occurs heat transfer from the absorber to the sea water causing, rising sea temperatures cause sea water to evaporate. The rising temperature of the sea water increases the amount of evaporation that occurs. The more the amount of evaporation generated will increase the number of fresh water produced. Increased seawater temperatures by increasing the temperature absorber, so it needs to be analyzed shape of the absorber which one can be produce more clean water than the others, a conclusion of the study indicated that solar distillation plat shape with a huge wave absorber produces more clean water than the others , the average amount of water that is more of 908 ml, compared with a small wave absorber plate only produce 764.4 ml  average a day and a flat plate absorber only produce 599 ml average a day, it is not independent of heat absorption by absorber, solar distillation plat shape with a huge wave absorber absorbs more heat than the other two absorber plates, this has resulted in solar distillation  shape with a huge wave  absorber plate  very well produce more water than the otehrs. 
APLIKASI ERGONOMI BERDASARKAN DATA ANTROPOMETRI PEKERJA PADA DESAIN ALAT KERJA Bawa Susana, I Gede; Alit, Ida Bagus; Aryadi, I G.A.K. Chatur Adhi Wirya
Energy, Materials and Product Design Vol. 1 No. 1 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

A review of the application of ergonomics to design work tools based on worker anthropometric data is carried out to provide information on its use in the production process, especially in micro, small and medium business. This is done because most people in Indonesia still use simple tools with unnatural work postures. Unnatural work postures such as bending, squatting, twisting, exposure to the sun, etc. Unnatural work postures cause musculoskeletal complaints and fatigue which have an impact on decreasing work efficiency. Of course, this causes a decrease in productivity and quality of life for workers. From the results of a review of several studies and literature, satisfactory results were found regarding the application of ergonomics in designing work tools according to worker anthropometric data. Application of anthropometric data for the design or redesign of a work tool based on the flow of 1) determining the body that is important in the design or redesign, 2) determining the user population, 3) calculating the percentile value for each predetermined body dimension, and 4) application to the design of the tool. Ergonomics application based on information related to human factors (strengths, weaknesses, or limitations) in designing work tools that are more effective, safe, comfortable, healthy, and efficient. An ergonomic work tool can be used effectively, comfortably, safely, healthily, efficiently, and sustainably. Ergonomics application as an alternative in overcoming the problem of musculoskeletal complaints and fatigue due to unnatural work postures. Ergonomics applications improve work safety and worker health so that work productivity increases.
ANALISA SISTEM KENDALI MEKANIK UNTUK PENGEMBANGAN KENDARAAN LISTRIK AUTONOMOUS FAKULTAS TEKNIK UNRAM Okariawan, I Dewa Ketut; Syahrul; Alit, Ida Bagus; Nuarsa, I Made; Suartika, I Made
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

Currently, the vehicles that are commonly used are vehicles with fossil fuels, but we all know that these fuels are non-renewable fuels and their availability in nature is very limited, so it is necessary to innovate to use other renewable energy sources. one of which is electrical energy. Besides that, the use of electrical energy for vehicles is currently very relevant because of its relatively high efficiency and friendly to the environment, namely no CO or CO2 gas is formed as in conventional vehicles. Indonesia has the potential to develop electric cars because there is a lot of nickel available to be processed into batteries. Thus, our country has a very large opportunity to produce electric cars. To realize this, it is deemed necessary to conduct a thorough study such as the level of comfort and safety. Thus, it is needed to conduct a study of the mechanical control system so that driving comfort and safety can be achieved. In this research, we will measure the turning radius of the vehicle at various TOE angles. The resulth of this study are the greater of TOE angle produce the higer the turning radius of the vehicle, The smallest turning radius is at a TOE angle 0 degrees which is 4.42 meters and the largest at a TOE angle 1.035 degrees which is 4.53 meters.
EVALUASI ALAT PENGADUK DODOL NANGKA SKALA RUMAH TANGGA BERDASARKAN PRINSIP ERGO-EKONOMI : EVALUATION OF HOUSEHOLD SCALE JACKFRUIT DODOL MIXER TOOL BASED ON ERGO-ECONOMIC PRINCIPLES Bawa Susana, I Gede; Alit, Ida Bagus
Energy, Materials and Product Design Vol. 3 No. 2 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram

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Abstract

The use of manual tools in the process of stirring jackfruit dodol tends to have an impact on high workload, fatigue, and complaints from workers. The stirring process requires a lot of energy to get perfectly cooked dodol. In addition, manual tools take a long time, and the product needs to be evenly cooked, leaving a crust on the dodol stirring pan. To overcome this, an automatic stirring tool is needed at an affordable cost. Workers' participation as users is required so that the tools used match workers' wishes. Ergo-economic applications are necessary to meet workers' desires: comfort and affordable costs. From the evaluation carried out, it was found that the automatic stirring tool only requires a little energy because a machine does the stirring. This impacts the workload, fatigue, and complaints automatically decreasing when compared to using a manual stirring tool. Economically, the use of an automatic stirring tool provides benefits for dodol entrepreneurs after the 2.4th month. This is based on the investment value of the automatic stirring machine. The ROI (Return on Investment) level is 170.216%. This stirring machine is more effective because the stirring results are more even and do not cause crust on the container. Worker performance can be improved by applying ergo-economics based on preventive measures against behaviors that can potentially cause injury in the workplace. Workers are the main asset or economic resource in the industry, and ergonomics and economics are interrelated with ergonomics, which can create better working conditions, producing a better economy.
Co-Authors Achmad Zainuri Adhi W.A., I G.A.K. Chatur agus dwi catur Aldi Mukaddim, Aldi Anggani, Yudi Anom Josafat Arif Mulyanto Aryadi, I G.A.K. Chatur Adhi Wirya Bayu Tirta Dirja 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 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. Ni Putu Sasmita Lestari Niko Citami Nur Kaliwantoro Okariawan, I Dewa Ketut 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 Vici Muhammad Akbar Wahyu Sulistya Affarah Yesung Allo Padang Yudhyadi, I Gusti Ngurah Ketut Zainuri Achmad