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All Journal Jurnal Energi Dan Manufaktur Journal of Engineering and Technological Sciences Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat Semesta Teknika JMPM (Jurnal Material dan Proses Manufaktur) Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Prosiding Seminar Nasional Teknik Mesin METAL : Jurnal Sistem Mekanik dan Termal Makara Journal of Technology
Rustan Tarakka
Departemen Teknik Mesin, Fakultas Teknik, Universitas Hasanuddin, Gowa
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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Kajian Aerodinamika Pada Model Kendaraan dengan Penerapan Kontrol Aktif Suction Rustan Tarakka; Nasaruddin Salam; Jalaluddin Jalaluddin; Wawan Rauf; Muhammad Ihsan
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (673.3 KB) | DOI: 10.25077/metal.5.1.38-43.2021

Abstract

As the air flow reaches the rear part of the vehicle the flow will undergo separation generated by friction and fluid viscosity, and creating wake, considerably large turbulent area with low pressure at the rear of the vehicle which results in pressure drag which can reduce vehicle performance. The research was carried out with a computational and experimental approach. The test model used in this study is a model of a family van model which is a modification of the Ahmed body model. The rear part of the vehicle model is equipped with an active control feature in the form of a suction with a slant angle (α) of 35°. The upstream speed and suction speed are 11.1 m/s and 0.5 m/s, respectively. The results obtained indicate that the application of active suction control is able to reduce wake formation and delay flow separation compared to the uncontrolled model, and is able to increase the minimum pressure coefficient on the rear wall of the vehicle model with an increase of 41.49%, and is able to reduce the drag coefficient by 11.0260% for the approach. computation and 11.0080% for the experimental approach.
Pemanfaatan Pompa Air Tenaga Surya Untuk Sistem Irigasi Pertanian Muhammad Syahid; Nasaruddin Salam .; Wahyu Piarah .; Zuryati Djafar .; Jalaluddin .; Rustan Tarakka .; Gaffar Alqadri .
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 5 No 1 (2022): Kebersamaan dalam Membangun Masyarakat Tangguh dan Gesit
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v5i1.240

Abstract

Solar energy is a renewable and environmentally friendly energy that can be utilized in various fields. Solar energy can be used to increase production in the agricultural sector by introducing smart and efficient technological interventions with cheap energy sources. One of the problems faced by farmers is the provision of crop irrigation and watering which requires a lot of labor or high electricity costs. With a solar-based irrigation pump with an automation system, it is expected to reduce the need for labor and electricity costs. The method of service is by conducting training on the implementation of solar water pumps for agricultural irrigation systems for HKTI-Gowa Youth. The training was continued by demonstration of the use and working system of a solar water pump machine for an agricultural irrigation system using an automation system based on a timer. This service provides additional knowledge about the use of solar power for agricultural irrigation systems, so that it can be more efficient and effective with this cheap and environmentally friendly energy source. This activity was highly appreciated by the training participants in this service.
Modification of Flow Structure Over a Van Model By Suction Flow Control to Reduce Aerodynamics Drag Harinaldi, Harinaldi; Budiarso, Budiarso; Warjito, Warjito; Kosasih, Engkos Achmad; Tarakka, Rustan; Simanungkalit, Sabar Pangihutan; Lay Teryanto, I Gusti Made Fredy
Makara Journal of Technology Vol. 16, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Automobile aerodynamic studies are typically undertaken to improve safety and increase fuel efficiency as well as to find new innovation in automobile technology to deal with the problem of energy crisis and global warming. Some car companies have the objective to develop control solutions that enable to reduce the aerodynamic drag of vehicle and significant modification progress is still possible by reducing the mass, rolling friction or aerodynamic drag. Some flow control method provides the possibility to modify the flow separation to reduce the development of the swirling structures around the vehicle. In this study, a family van is modeled with a modified form of Ahmed's body by changing the orientation of the flow from its original form (modified/reversed Ahmed body). This model is equipped with a suction on the rear side to comprehensively examine the pressure field modifications that occur. The investigation combines computational and experimental work. Computational approach used a commercial software with standard kepsilon flow turbulence model, and the objectives was to determine the characteristics of the flow field and aerodynamic drag reduction that occurred in the test model. Experimental approach used load cell in order to validate the aerodynamic drag reduction obtained by computational approach. The results show that the application of a suction in the rear part of the van model give the effect of reducing the wake and the vortex formation. Futhermore, aerodynamic drag reduction close to 13.86% for the computational approach and 16.32% for the experimental have been obtained.
Implementasi Mesin Pencacah Plastik pada Bank Sampah di Maccini Sombala Kota Makassar Syahid, Muhammad; Amme, Rudi; Salam, Nasaruddin; Piarah, Wahyu H; Tarakka, Rustan; Djafar, Zuriyati; Jalaluddin, Jalaluddin; Arfandy, Arfandy; Kasim, Lukman
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 6 No 2 (2023): Let us Collaborate for Community Issues
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v6i2.385

Abstract

The process of recycling plastic waste is one way of processing plastic waste. Plastic waste in the form of plastic bottles and cups has a high selling value when it is recycled. The Paraikatte Rong waste bank in Makassar City has been in the plastic waste processing business for 5 years. This waste bank only collects and sorts plastic waste due to the unavailability of plastic chopping machines that can help the plastic waste recycling process. Therefore, the Community Service Team of the Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University, with the implementation of appropriate technology designed and built a plastic chopping machine for the Paraikatte Rong waste bank. The method used is to conduct training on the use and maintenance of a plastic chopping machine. The purpose of this service is for the waste bank to carry out the recycling process optimally and efficiently so as to increase the economic value of plastic waste. The scissor system for chopping plastic is applied to the chopping machine so that the chopping results are smoother. The chopping machine consists of 3 dynamic blades and 2 static blades which can be adjusted to the density of the blades. This machine has a capacity of 100 kg/hour using a 7.5 hp petrol engine. The success of this community service activity can be seen from the increase in public understanding based on survey results where the total level of understanding/very understanding of the benefits of selecting plastic waste has increased from 35% to 52.6%. The operation of the plastic chopping machine has increased from 55% to 80%. The maintenance of the plastic chopping machine has increased from 53% to 87%.
Penerangan Tambak Ikan dengan Panel Surya untuk Kemandirian Energi di Kabupaten Pangkajene dan Kepulauan Hayat, Azwar; Salam, Nasruddin; Tarakka, Rustan; Aminy, Ahmad Yusran; Putra, Andi Erwin Eka; Sule, Luther; Arsyad, Hairul; Amaliyah, Novriany; ., Rudi
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 6 No 2 (2023): Let us Collaborate for Community Issues
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v6i2.409

Abstract

Turungan Bontojai Village is one of the areas in Pangkajene and Kepulauan Regency (Pangkep) where the majority of the people work as fish farmers or shrimp farmers. Administratively, this area is Sibatua Village, Pangkajene District. This village is an area close to the sea where infrastructure does not receive much attention, especially the electricity network. The electrical energy crisis experienced by the people of this village area needs a solution. In this community service activity, renewable energy from solar cells have been planned and applied to light the residents' ponds in Turungan Bontojaidengan Village. Lighting application with solar panels that will be placed in one of the residents' ponds as a pilot project for the application of the renewable energy. The community also received training on how to care for the equipment so that the community could independently maintain the sustainability of the program in the future. A 100 wp solar cell with a 432 Wh battery is installed to power 4 unit 7 watt light bulb with an additional DC to AC inverter which can be used to power other electronic equipment. The lights are operated at night for 12 hours with a total power consumption of 336 watts per day. Electronic devices are operated during the day by utilizing direct solar energy which is converted from DC current from solar cells to AC current using a 300 watt inverter. On a daily basis, benefits are obtained in the form of free electricity of 400 watts per day to meet the pond needs of the residents of Turungan Bontojai village. This activity has succeeded in increasing citizens' understanding as seen from the results of data processing with SPSS in the Pre-test and Post-test which shows an increase in understanding with a Mean value of 5.35 (pre-test) to 14.55 (post-test). The success of the activity was measured by a questionnaire on participant satisfaction with the community service activities carried out and the results showed that 90% were satisfied with the implementation of the activity.
Sosialisasi Mekanisme Kontrol Ultraviolet-C (UVC) Desinfektan Penanganan Covid -19 di Kabupaten Pinrang Mochtar, Andi Amijoyo; Sule, Luther; Tarakka, Rustan; Azis, Nasruddin; Mire, Baharuddin; Mangkau, Andi; ., Fauzan
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 7 No 1 (2024): Community Development
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v7i1.466

Abstract

Public services are interactions between society and the government as public servants. This service activity involved the Pinrang Regency Investment and Integrated Service Agency (DPMPTS) and academics from the Mechanical Department, Faculty of Engineering, Hasanuddin University. Utilizing this disinfectant tool can help the DPMPTS service in terms of air sterilization and preventing the spread of Covid-19 in community service spaces. The problem that arises is the level of interaction between the community who needs services and DPMPTS employees as service providers who are quite vulnerable to the spread of viruses and bacteria. This can cause the spread of disease, so tools are needed that can reduce the impact of the spread of the disease. The use of Ultraviolet C (UVC) is a disinfectant tool that has been proven effective in killing microorganisms, one of which is the COVID-19 virus. The service method is carried out using an outreach mechanism at the DPMPTS agency which is attended by technical government agencies and several participating local communities. The process of implementing socialization uses a questionnaire mechanism consisting of pre-test and post-test. At the start of the socialization, the number of respondents who filled out the questionnaire was 18 people consisting of 8 government representatives and 10 community representatives or a total of 18 respondents. In the pre-test results, it was found that only 3 people understood the function of the mobile robot disinfectant system mechanism and 15 people did not understand. After the socialization was carried out, better results were obtained with 17 people who understood and 1 person who still did not understand the working system of the mobile disinfectant robot. Therefore, it is recommended to use mobile disinfectant robots in DPMPTS public service spaces to reduce the effects of spreading viruses and bacteria.
Sosialisasi Manfaat Moda Transportasi Publik Berbasis Rel untuk Peningkatan Animo Penggunaan Kereta Api di Rute Maros-Barru Sulawesi Selatan Ramli, Muhammad Isran; Adisasmita, Sakti Adji; Sabil, Muhammad Ikhsan; Yatmar, Hajriyanti; Tjaronge, Muhammad Wihardi; Bakri, Bambang; Hustim, Muralia; Aly, Sumarni Hamid; Tarakka, Rustan; Sirajuddin, Yahya; Chaerunnisa, Andi Sitti
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 1 (2025): Community Empowerment through Higher Education Community Service Programs
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i1.574

Abstract

The Maros-Barru railway is a strategic route to be developed as a public transportation mode that can connect two important areas in the province of South Sulawesi. However, even though the railway infrastructure in this area already exists, the level of train use by the community is still quite low. The demand for this travel need is significant for planning purposes, both facilities and infrastructure, especially transportation. The lack of public interest in trains on the Maros-Barru route is caused by several factors, one of which is the lack of information received by the community regarding the benefits and comfort offered by trains. Socialization of the benefits of rail-based public transportation will be carried out through various communication channels to reach more passengers, and it is hoped that this activity will benefit policymakers in the management and planning of trains in Sulawesi and reduce transportation problems. Before the socialization, there was no value, but after the socialization, a value of 2984 was obtained, which was in the range of 2501-3250, with the criteria Good. This means that this activity is also expected to be a preference for public transportation modes, especially trains, and the transition from other transportation modes to trains.
Welding Skills Improvement Training in Lanne Village, Pangkep Regency Amme, Rudi; Salam, Nasaruddin; Renreng, Ilyas; Tarakka, Rustan; Arma, Lukmanul Hakim; Arsyad, Hairul; Mochtar, Andi Amijoyo; Hayat, Azwar; Sakka, Asriadi
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 1 (2025): Community Empowerment through Higher Education Community Service Programs
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i1.577

Abstract

The welding method combines two or more pieces of metal by melting the material to be joined. The joining of two or more base metals through melting or without melting the joint area is known as welding technology. Karang Taruna Desa Lanne is a village government program for youth empowerment. Currently, the youth organization has a program that still needs to be improved to increase the productivity of youth organization members. Therefore, the training program to improve welding skills initiated by the Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University, is expected to positively impact partners. The activity was carried out by providing training material followed by welding practice activities to determine the ability of participants to apply the material provided previously. In addition, the pre-test and post-test questionnaires were given to the participants before and after the training to determine the program's success rate. Based on the quantitative analysis of measurements before training, it was found that 85% did not understand and 15% did not understand how to prepare for welding. After the training, it was found that 65% of the participants understood, 25% understood, and 10% understood very well when preparing for welding. This indicates that the activities carried out have a positive impact on partners.
Co-Authors . Jalaluddin . Wardi A. Syamsul Arifin P. Abdul Rasyid Jalil Adisasmita, Sakti Adji Ahmad Yusran Aminy Amme, Rudi Andi Amijoyo Mochtar Andi Amijoyo Mochtar Andi Erwin Eka Putra Andi Mangkau Andi Nurfaidah Rahman Arfandy, Arfandy Azis, Nasruddin Baharuddin Mire Bambang Bakri Budiarso Budiarso, Budiarso Chaerunnisa, Andi Sitti Djafar, Zuriyati Effendy Arif Effendy Arif Engkos Achmad Kosasih Engkos Kosasih Fauzan . Gaffar Alqadri . Hairul Arsyad Harinaldi . Hayat, Azwar I Gusti Made Teryanto, I Gusti Made Ilyas Renreng Jalaluddin - Jalaluddin . Jalaluddin Haddada Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Kasim, Lukman Lay Teryanto, I Gusti Made Fredy Lukmanul Hakim Arma Luther Sule Machfud, Andi Mochtar, Andi Amijoyo Muhammad Ihsan Muhammad Isran Ramli Muhammad Syahid Muhammad Wihardi Tjaronge Muralia Hustim Nasaruddin Salam Nasaruddin Salam . Nasaruddin Salam, Nasaruddin Novriany Amaliyah Piarah, Wahyu H Rauf, Wawan Rudi ., Rudi Sabar Pangihutan Simanungkalit Sabar Simanungkalit, Sabar Sabil, Muhammad Ikhsan Sakka, Asriadi Salam, Nasruddin Sarwan Sarwan Setiawan, Muh. Sirajuddin, Yahya Sumarni Hamid Aly Syahrir Arief Wahyu Piarah . Wardi - Warjito Warjito, Warjito Yatmar, Hajriyanti Yunus Yunus Zuryati Djafar .