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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 SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan 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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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. 
Pelatihan Bantuan Hidup Dasar bagi Guru Sekolah Menengah di Daerah Pesisir Pulau Lombok Nusa Tenggara Barat Widiastuti, Ida Ayu Eka; Wahyu Sulistya Affarah; Bayu Tirta Dirja; Anom Josafat; Ida Bagus Alit; Vici Muhammad Akbar; Ni Putu Sasmita Lestari; Niko Citami
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 4 (2025): Oktober-Desember 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i4.13429

Abstract

Lombok Island, West Nusa Tenggara, is one of the best tourist destinations in Indonesia. One impact of this is increased activity on the beach and sea, which has the potential to cause emergency conditions and require immediate assistance. Equipping coastal communities with the ability to perform basic life support (BLS) is crucial, including for teachers. The purpose of this activity is to provide participants with knowledge and understanding of the principles of BLS assistance, and participants can provide BLS assistance if they encounter accident/injury victims in the water. This activity was held at the Nipah Community Health Center Hall, Malaka Village, Pemenang District, North Lombok, with a total of 22 high school teachers from Malaka Village participating. The activity was divided into six sessions: pre-test, material delivery, demonstration using mannequins, BLS skills training for participants, discussion and question-and-answer session, and concluded with a post-test. The success of this activity was seen from the increase in post-test scores compared to the pre-test, which was 33.3%. The average pre-test score was 69.55, increasing to 92.73. During the training session, participants enthusiastically practiced the BHD skills that had been previously demonstrated by the presenter and team. This activity needs to be continuously carried out for coastal communities in different locations and targets as an effort to increase the life expectancy for victims who experience respiratory arrest while carrying out activities at sea or on the coast.
Thermal Performance of LPG Stove as Heat Source of Rotary Dryer for Drying Corn for Small Farmers Ida Bagus Alit; I Gede Bawa Susana
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.
APLIKASI ERGONOMI BERDASARKAN DATA ANTROPOMETRI PEKERJA PADA DESAIN ALAT KERJA I Gede Bawa Susana; Ida Bagus Alit; I G.A.K. Chatur Adhi Wirya Aryadi
Energy, Materials and Product Design Vol. 1 No. 1 (2022): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, 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 I Dewa Ketut Okariawan; Syahrul; Ida Bagus Alit; I Made Nuarsa; I Made Suartika
Energy, Materials and Product Design Vol. 2 No. 1 (2023): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, 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 I Gede Bawa Susana; Ida Bagus Alit
Energy, Materials and Product Design Vol. 3 No. 2 (2024): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, 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.
The THE FERFORMANCE ANALYSIS OF ELECTRIC CAR OF THE UNIVERSITY OF MATARAM : THE FERFORMANCE ANALYSIS OF ELECTRIC CAR OF THE UNIVERSITY OF MATARAM I Gusti Ngurah Ketut Yudhyadi; Pandri Pandiatmi; Emmy Dyah S.; Ida Bagus Alit; Sinarep
Energy, Materials and Product Design Vol. 4 No. 1 (2025): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, 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.
ANALISIS PERFORMA ALAT DISTILASI SURYA DENGAN VARIASI KETEBALAN KACA PENUTUP Ida Bagus Alit; Made Wirawan; Irham Zulkarnain
Energy, Materials and Product Design Vol. 5 No. 1 (2026): Energy, Materials and Product Design
Publisher : Jurusan Teknik Mesin dan Industri, Fakultas Teknik, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/empd.v5n1.346-353

Abstract

The availability of clean water has become a global challenge due to the dominance of seawater on Earth and the limited amount of usable freshwater. One potential solution is solar distillation, which utilizes solar energy as a renewable energy source. This study aims to analyze the effect of glass cover thickness on the performance of the solar distillation system, including temperature distribution, water productivity, and system efficiency. The glass thicknesses used in this study were 3 mm, 5 mm, and 8 mm. The results showed that glass thickness significantly affected system performance. 3 mm glass produced the highest productivity of 1073.33 ml/day with an efficiency of approximately 39%, followed by 5 mm and 8 mm glass. Increasing glass thickness reduced temperature, evaporation rate, and distillation yield due to higher thermal resistance and lower solar radiation transmission. Therefore, the optimal glass thickness is 3–5 mm to achieve maximum system performance.
Penerapan teknologi tepat guna pada kelompok tani Desa Setanggor, Kabupaten Lombok Tengah Suteja Suteja; Nasmi Herlina Sari; Sujita Sujita; Rudy Sutanto; Ida Bagus Alit; Syarif Hidayatullah; Ahmad Akromul Huda
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 3 (2026): June (In Progress)
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i3.39015

Abstract

AbstrakKelompok tani sinar harapan memiliki permasalahan perawatan padi berupa biaya dan waktu semprot padi yang terus meningkat. Melalui program Pengabdian Kepada Masyarakat (PKM) ini dihasilkan dan diberikan alat semprot kepada kelompok tani sinar harapan di desa Setanggor sebagai upaya untuk meningkatkan dan mempermudah dalam penyemprotan padi oleh para petani. Oleh karena itu, hal ini menjadi isu yang perlu diselesaikan dalam peningkatan hasil pertanian. Mesin alat semprot ini didesain dan dibuat untuk mengatasi permasalahan seperti mempermudah dan mempercepat semprot padi. Selain pembuatan dan serah terima alat semprot, pelatihan pengoperasian, dan perawatan mesin dilakukan secara Bersama-sama dengn masyarakat dan tim pengabdian dalam program ini. Hasil pengabdian menunjukkan bahwa waktu semprot dan proses semprot pada padi lebih cepat, sehingga mengurangi biaya untuk upah yang dikeluarkan petani. Terlebih lagi, para petani di kelompok tani sinar harapan sudah melewati usaha produktif. Sehingga program ini sangat membantu para petani. Diharapkan program keberlanjutan pada alat yang berbeda lainnya untuk mendukung kemandirian para petani. Kata kunci: alat semprot; kelompok tani sinar harapan; pengabdian kepada masyarakat. Abstract The Sinar Harapan Farmers’ Group faces challenges in rice cultivation, specifically the rising costs and time required for rice spraying. Through this Community Service Program (PKM), a sprayer was developed and provided to the Sinar Harapan Farmers’ Group in Setanggor Village as an effort to improve and streamline rice spraying for farmers. Therefore, this issue must be addressed to increase agricultural yields. This sprayer was designed and built to address issues such as simplifying and speeding up rice spraying. In addition to the construction and handover of the sprayer, training on operation and machine maintenance was conducted jointly with the community and the service team as part of this program. The results of the community service initiative show that the spraying time and process for rice are faster, thereby reducing labor costs for farmers. Furthermore, farmers in the Sinar Harapan farming group have already achieved productive outcomes. Thus, this program is highly beneficial to farmers. It is hoped that sustainable programs involving other types of equipment will be implemented to support farmers’ self-reliance. Keywords: community service; sinar harapan farmers' group; sprayer.
Co-Authors Achmad Zainuri Adhi W.A., I G.A.K. Chatur agus dwi catur Ahmad Akromul Huda 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 Emmy Dyah S. Eustachius Hagni Wardoyo Gede Wira Buanayuda Gilang Rezeki, Gilang I G.A.K Chatur Adhi W.A. I G.A.K. Chatur Adhi Wirya Aryadi I Gede Bawa Susana I Gusti Ngurah Ketut Yudhyadi 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 Ida Bagus, Alit Irham Zulkarnain 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. Nasmi Herlina Sari Ni Putu Sasmita Lestari Niko Citami Nur Kaliwantoro Okariawan, I Dewa Ketut Pandri Pandiatmi Pandri Pandiatmi Perdana Putra, I Ketut Prima Belia Fathana Putu Aditya Wiguna Putu Aditya Wiguna Rifana Cholidah Rudi Sutanto, Rudi Rudy Sutanto Sinarep Sinarep Siti Rahmatul Aini Srikus Saptaningtyas, Rini Sujita Darmo Sujita Darmo Sujita Darmo Sujita Sujita Sujita Sujita Sujita, Sujita Sultan Sultan Suteja Suteja Syahrul Syarif Hidayatullah Vici Muhammad Akbar Wahyu Sulistya Affarah Yesung Allo Padang Yudhyadi, I Gusti Ngurah Ketut Zainuri Achmad Zulkarnain, Irham