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All Journal International Journal of Renewable Energy Development Rekayasa Mesin DINAMIKA Jurnal Ilmiah Teknik Mesin Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Jurnal Fokus Elektroda : Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali Fokus Elektroda: Energi Listrik, Telekomunikasi, Komputer, Elektronika dan Kendali) Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Piston: Jurnal Teknologi Jurnal Polimesin

La Ode Ahmad Barata

Jurusan Teknik Mesin, Universitas Halu Oleo

Author-ID : 690926

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Penyediaan Pakan Ternak Melalui Intervensi Teknologi Alat Pencacah Limbah Cangkang Kepiting Di Desa Puasana Kecamatan Moramo Utara Kabupaten Konawe Selatan Aksar, Prinob; Hasanudin, La; Samhuddin, Samhuddin; Mangalla, Lukas Kano; Barata, La ode Ahmad; Sudia, Budiman; Saputra, Jaka seru Dwi
Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Vol 5, No 2 (2023)
Publisher : Vokasi Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jpmit.v5i2.45389

The aim of the community service activity is to effectively provide technical guidance to the community, especially the farmers in Puasana Village, North Moramo Sub-district, on the creation, operation, and maintenance of the Crab Shell Waste Chopper Technology. Additionally, it aims to transfer knowledge about the procedures for manufacturing, operating, and maintaining the Crab Shell Waste Chopper Technology in Puasana Village, North Moramo Sub-district, Konawe Selatan Regency. The method employed involves field visits, technical guidance, and the evaluation of activities conducted for the community. The results of the community service activity show that the community is well-informed and understands effectively the mechanisms for manufacturing, operating, and maintaining the crab shell waste chopper device used for livestock feed production. Furthermore, the evaluation provides a comprehensive understanding of the impact and sustainability of the crab shell waste chopper technology program in Puasana Village. These results can be used to enhance the program, ensure the continuity of innovation, and provide lessons for other areas interested in adopting a similar approach.

Pengujian Gasifikasi Updraft Untuk Tongkol Jagung dan Cangkang Mete Sebagai Sumber Energi Alternatif Taufik, Muhamad Rian; Mangalla, Lukas Kano; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 4 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Gasification is the process of converting energy from fuel containing carbon (solid or liquid) into a gas called syngas (synthesis gas). The purpose of this study was to determine the characteristics of syngas resulting from the gasification of a mixture of corn cobs and cashew shells and to determine the ideal composition of a mixture of corn cobs and cashew shells that produces optimal gas ingredients. The method used in this study is an experimental method by making a gasification tool and taking data directly with several variations of composition. The results showed that thecharacteristics syngas at the composition of 100% corn cobs could not produce flames, the mixture composition of 75% corn cobs and 25% cashew shells could not produce flames, at the composition of a mixture of 50% corn cobs and 50% cashew shells it was able to produce flames. flame, the composition of a mixture of 25% corn cobs and 75% cashew shells can already produce a flame and a composition of 100% cashew shells can also produce a gasification flame. Virtually the resulting flame is thought to be due to the presence of more hydrogen (gas) than carbon (smoke from combustion). The best composition in updraft gasification testing for corn cobs and cashew shells was obtained in a composition with a mixture of 25% corn cobs and 75% cashew shells, the resulting flame was obtained at 32.5 minutes to 50 minutes. Key words: Updraft gasification, composition , corn cobs, cashew shells, flame

Analisis Karakteristik Briket Daun Jati dan Daun Jambu Mete Arjuna, Muhamad; Kadir, Abd.; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Energy is something abstract that is difficult to prove but can be felt and has the ability to do work (energy is the capability for doing work). The purpose of this study was to determine the characteristics of Teak Leaves and Cashew Leaves Briquettes with varied compositions. The research method used is to analyze the characteristics of the flame temperature and compressive strength. Characteristic analysis of flame temperature and compressive strength was carried out with 3 variations of composition composition (70 teak leaves: 20 guava leaves: 10 clay, 50 teak leaves: 40 guava leaves: 10 clay, 20 teak leaves: 70 guava leaves: 10 clay) . From the results obtained, briquettes with a composition of 70% cashew leaves and 20% teak leaves with 10% clay adhesive are a good composition compared to other compositions with a temperature value of 233oC and a compressive strength value of 0.06272 N/mm2.Keywords: Briquettes, teak leaves, and cashew leaves

Studi Karakteristik Etanol Singkong: Efek Temperatur dan Tekanan Reaktor Gunawan, Yuspian; Barata, La Ode Ahmad; Budiman, Budiman; Muslimin, Salman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 9, No 1 (2024): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v9i1.47240

Tujuan penelitian ini untuk mengetahui pengaruh temperatur dan tekanan terhadap kadar ethanol hasil distilasi menggunakan evaporator. pada penelitian ini fermentasi singkong didistilasi menggunakan vacuum rotary evaporator dengan 3 variasi tekanan dan 3 variasi temperatur untuk memperoleh presentase bioetanol yang tinggi. penelitian dilakukan pada Tekanan 300 mbar, 450 mbar dan 600 mbar, dan temperature 50˚C, 60˚C, dan 70˚C. Bioethanol dengan kadar tertinggi diperoleh pada tekanan 450 mbar dengan temperatur 60˚C yaitu sebesar 43%. Sedangkan pada tekanan 300 mbar dengan temperatur 70˚ C diperoleh kadar etanol terendah yaitu sebesar 19%. Kadar etanol tertinggi digunakan pada pengujian dan analisa nyala api campuran B0, B10, B20, dan B30. Didapatkan Nilai tertinggi temperatur terdapat pada posisi pengambilan data 2cm campuran bioethanol B10 dengan nilai temperatur rata rata pada 5 kali pengujian yaitu 208,6°C. Pada pertalite murni (B0) memiliki nilai lama pembakaran nyala api tertinggi yaitu 801s. Nilai kalor tertinggi terdapat hasil distilasi pada tekanan 450 mbar dengan temperatur 60oC dengan nilai kalor 2576,62 cal/g.

PENGUJIAN SISTEM TOREFAKSI KAYU JATI MENGGUNAKAN MICROWAVE Sarifudin, Sarifudin; Mangalla, Lukas Kano; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 1 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Torrefaction is a heat treatment of raw biomass to obtain a fuel that is more stable, has a high energy density and higher brittleness and is easy to grind. The purpose of this study is to determine changes in physical properties, calorific value of water absorption resistance (hydrophobic) in teak wood after the torrefaction process in the microwave. The method used in this study is an experimental method using a microwave heater equipped with measuring instruments such as a digital thermometer, and digital scales. The biomass material used was finished wood cut with sample sizes of Model 1 (cube 3 x 3 cm), Model 2 (rectangular 7 x 3 x 3 cm), and Model 3 (cylindrical tube 7 x 3 cm). Each material was put in a microwave depth for torrefaction for 15, 25, 35 minutes. The results showed that the model 2 sample experienced the largest mass change of 80.95%, followed by model 3 with a mass change of 76.47% and Model 1 which experienced a mass change of 70%. The longer you experience electromagnetic wave radiation in the microwave, the greater the mass change and the lower the water absorption Keywords: Torrefaction, teak wood, microwave, calorific value, moisture content

Uji Pembakaran Biobriket Tongkol Jagung dan Sekam Padi Menggunakan Perekat Sagu Suratin, Dedi Mardeni; Barata, La Ode Ahmad; Aminur, Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The main source of energy for humans is Human Resources which comes from carbon fossils. This energy has been deficient so it needs to be energy differentified. Biobriquettes are charcoal bars using soft materials that are processed into hard charcoal materials. The purpose of this study was to determine the composition of a good mixture (not easily destroyed) based on the compressive strength of the Corn Cob and Rice Husk biobrikets and to determine the flame temperature of the Corn Cob biobriket and Rice Husk. The method carried out in this study is the analysis of the flame temperature and compressive strength contained in the briquettes. The analysis carried out in this study was carried out with 5 variations in composition, namely ( corn cobs 25% : rice husks 75% : sago 15%, corn cobs 75% : rice husks 25% : sago 15%, corn cobs 50% : rice husks 50% : sago 15%, corn cobs 100% : rice husks 0% : sago 15%, and corn cobs 0% : rice husks 100% : sago 15%). From the results that have been obtained, briquettes that have good quality are found in corn cobs 25%: Rice husks 75%: sago 15% with a temperature value of 500 °C and a maximum load strength value of 159,060 with a compressive strength value of 1.0404624 N / mm2.Keywords: Corn cobs, rice husks, and flame temperature

Analisis Karakteristik Biomassa Cangkang Kelapa Dan Kulit Mete Melalui Proses Torefaksi Nurudin, La Ode; Mangalla, Lukas Kano; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 1 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

In the face of the depletion of fossil fuels, alternative fuels such as biomass are needed. However, biomass has a fairly low calorific value and several other disadvantages compared to petroleum. Therefore, a new breakthrough is needed to correct these weaknesses, one of which is the Torrefaction process. The purpose of this study was to determine the effect of torrefaction of coconut shell and cashew shell biomass on the physical and chemical properties of the material. This research was conducted using coconut shells and cashew shells. The results of this study indicate that the calorific value of coconut shells and cashew shells after torrefaction is 5115,297-5147,021 cal/gr. The water content in coconut shells is 2.718% and the value of water content in cashew shells is 2.397%, the ash content of coconut shells is 6.853% and the value of cashew shell ash content is 6.600%, the value of volatile levels of coconut shells is 14.885% and the value of volatile levels of cashew shells of 14.557% and the value of fixed carbon content of coconut shell is 75.574% and the value of fixed carbon content of cashew shell is 76.447%. Keywords : Biomass, coconut shell, cashewnut shell, torrefaction

Analisa Prestasi Pompa Hidram Dengan Variasi Katub Beban Dan Kondisi Inlet Santoso, Sigit; Sudia, Budiman; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 1 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i1.29821

Water transfer in inland areas is still done manually, so we need a water pump with efficiency, technology, economy without the use of electricity and fuel, namely a hydram pump. A hydram pump is a water pump that relies on the momentum of water to raise water. The purpose of this study was to determine the effect of inlet pipe size on pump efficiency, outlet pipe flow rate and the effect of pipe joints on major and minor losses. This research was made with a water source height of 1 m, varying inlet pipes measuring ¾ inch, 1 inch, and 1,5 inch with a length of 5 m, a hydram pump body with a diameter of 1 inch, an air tube with a diameter of 3 inch with a length of 40 cm and an outlet pipe measuring ½ inch. The largest hydram pump efficiency is found in the ¾ inch inlet pipe with 1.94% with an outlet pipe flow rate of 1.79 l/min and the lowest efficiency is in a 1 inch inlet pipe with 1.49% with an outlet pipe flow rate is 1.55 l/min while the major value and the biggest loss value are in the ¾ inch inlet pipe with values of 0.00754 m and 0.678 m and the lowest values are in the 1.5 inch inlet pipe with values of 0.000410 m and 0.019 m so that it can be concluded that the cross-sectional area and the number of connections in the hydram pump installation are very influential on the value of major and minor losses.Keywords: Diameter, Waste Valve, Pipe, Pump

Pengujian Water Hammer Pada Berbagai Berbagai Tekanan Hidrostatis Idul, Idul; Mangalla, Lukas Kano; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 3 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Fluids are an important aspect of everyday life. A fluid is a substance that can flow. In the pipeline, the problem that often occurs is the occurrence of fluctuations in water pressure due to the sudden closure of the water flow. The purpose of this research is to study the effect of water hammer on pressure fluctuations at various heights, and to determine the phenomenon of water hammer on flow in pipes at various water surface elevations. The research method was carried out by testing the water hammer at hydrostatic pressure with a water level of 2.40 m, 2.60 m, and 2.80 m. The test is carried out in conditions just after the valve is closed. From the results obtained for the height of h 2.40 m, 2.60 m and 2.80 m have a discharge of 0.000543 m3/s, 0.000558 m3/s and 0.000568 m3/s. pressure fluctuations in the pipe for a height of 2.40 (m), with a duration of fluctuation of 12.48 (s), for a height of 2.60, (m) with a duration of fluctuation of 14.37 (s), and at a height of 2.80 (m) fluctuated by 17.56 (s). The higher the water level, the higher the fluctuations produced. The occurrence of altitude fluctuations is caused by the closing of the valve at the end of the pipe so that the water increases and after experiencing an increase there is a decrease in height until it is constant

Uji Eksperimental Aliran Dalam Pipa dengan Variasi Rangkaian Pompa Sentrifugal Amrullah; Akbar Naro Parawangsa; La Ode Ahmad Barata
Piston: Jurnal Teknologi Vol 9 No 1 (2024): Juni 2024
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v9i1.57

A pump converts the rotational energy of the shaft and subsequently the movement of the blades into kinetic energy and pressure in the fluid. Pumps can be configured as single, double series, or double parallel, depending on the requirements. This research aims to determine the best performance of a centrifugal pump installation with variations in head and configuration. The method used in this research is experimental, utilizing a centrifugal pump arranged with water as the fluid. The results show that single and double series configurations are more suitable for applications requiring stable flow despite changes in head. Parallel configurations produce higher speeds compared to single and double series configurations, but speed decreases with increasing head. The single pump's efficiency increases to 40.5% with an increase in head. Efficiency in the series configuration increases to 50.1%, higher than the single pump at the same head. Efficiency in the double parallel configuration increases to 80.1%, indicating that the parallel pump is the most efficient at higher heads. For applications requiring high efficiency, the double parallel pump configuration is the best choice. Based on the analysis results, it can be concluded that the double parallel pump configuration provides the best performance with the highest efficiency at 80.1%, and the highest discharge rate of 43.2 l/min. The double parallel pump configuration is the most efficient and effective for applications requiring optimal pump performance at higher heads.

Co-Authors Abd. Kadir Akbar Naro Parawangsa Akbar Naro Parawangsa Aksar, Prinob Al Kadirun, Sri Amrin Aminur Aminur Aminur Amrullah Amrullah Ardian Sumantri Arjuna, Muhamad Arnold Oscar F.R. Baride, La Budiman Budiman Budiman Sudia, Budiman DWI SURYANTO Harjum La Bau Hasanudin, La Idul, Idul Jaka Seru Dwi Saputra Jenny Delly Kadir Kadir Kiwata Takahiro Kiwata, Takahiro La Hasanudin Lukas Kano Mangalla, Lukas Kano Masharib Al Akhyar Mera Kartika Delimayanti Muh Fadhil Safli Muh. Ilcardi Ralda Muhammad Abdillah Muhammad Alfian Muslimin, Salman Nanang Endriatno Naryanto, Rizqi Firti Nining Mahmuda Meliana Nurjannah Yusman Nurudin, La Ode Rizki Rustam Efendi Ryan Aspari Salimin Salimin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin, Samhuddin Sarifudin sarifudin, Sarifudin Septianus T.L. Sigit Santoso Sudarsono Sudarsono Sudarsono Suratin, Dedi Mardeni Suriyadi Takahiro Kiwata Tando, Arjal Taufik, Muhamad Rian Toshiyuki Ueno Ungo Ibuhasa Yolli Fernanda

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