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All Journal Jurnal Energi Dan Manufaktur TEKNIK Jurnal technoscientia DINAMIKA Jurnal Ilmiah Teknik Mesin Metropilar Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Panrita Abdi - Jurnal Pengabdian pada Masyarakat Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang JURNAL TEKNOLOGI TECHNOSCIENTIA Anoa : Jurnal Pengabdian Masyarakat Sosial, Politik, Budaya, Hukum. Ekonomi Jurnal Pengabdian Masyarakat Ilmu Terapan (JPMIT) Piston: Jurnal Teknologi Jurnal Polimesin

Lukas Kano Mangalla, Lukas Kano

Universitas Halu Oleo

Author-ID : 532953

Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

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Pengujian Eksperimental Perbandingan Konsumsi Bahan Bakar dan Emisi Gas Buang Dengan Beberapa Jenis Bahan Bakar Pada Sepeda Motor Firsan, Muhammad; Mangalla, Lukas Kano; Hasanudin, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 1 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Air pollution is caused by the activities of motorized vehicles that emit exhaust gas emissions, including CO, CO2, HC, NOX, SOX, and particulates. The purpose of this study was to determine how the effect of fuel variations on the time of fuel consumption and exhaust emissions on motorcycles and to find out how the composition of mixing premium fuel with ethanol affects the time of fuel consumption and exhaust emissions. This study uses 4 types of fuel, namely premium, pertalite, E-5, and E-10 and tested using 3 variations of throttle openings. From the test results, it is found that the most fuel consumption is found in the wide throttle opening on premium fuel = 0.77 L/h. For the results of the lowest CO and HC exhaust emissions found in the wide throttle opening on the E-10 fuel where the emission value of CO = 1.98% and HC = 1425 ppm. So it can be concluded that in comparison with the time of fuel consumption, the higher the throttle opening, the faster the fuel consumption will be and for exhaust gas emissions, the higher the throttle opening, the lower the CO and HC emission values. Mixing premium fuel with ethanol can make the fuel consumption time slower than pure premium and can also reduce the content of CO and HC exhaust emissions.Key words: Fuel, Exhaust emissions, Fuel consumption

Analisa Produksi Bio-Etanol Dari Kulit Singkong Dengan Proses Thermal Sabilah, Laode Muhamad Zakirus; Mangalla, Lukas Kano; Imran, Al Ichlas
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 3 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Cassava skin is a waste of high-carbohydrate cassava that can be treated asa an alternative fuel source. As for the purpose of this study, it is to know how to produce bioethanol from cassava skin and how much ethanol is produced in the fermentation destilation procwss. Bioethanol research from the cassava skin is made by means of a fermentation process using a 9 and 12 day fariation with a 20,4 and 60 gram supplement of a mixture (leaven/yeast) of a 20,4 and 60 gram that is cut off by sample destilting devices. Research shows that the longer the fermentation from a mixture of refined caskbark and yeasts does not significantly affect the ethanol produced, since ethanol results from each fariation is 10%. Key words: Cassava suede, fermentation, bioethanol, renewable energy

Pengujian Eksperimen Pembuang Panas dan Aliran Udara Pada Berbagai Bentuk Heatsink Masrianto, Zulqifli; Mangalla, Lukas Kano; Gunawan, Yuspian
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 4 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Heatsinks are widely used in heat exchangers to increase the rate of heat transfer between a surface and the working fluid. This study aims to determine the effect of surface shape and area, and air flow velocity on the rate of heat transfer of the three different heatsinks. The research was conducted experimentally by testing three forms of heatsinks with variations in air flow velocity in a small windtunell. The windtunnel is equipped with test equipment such as a handheld wind meter, K-Type thermocouple and a stopwatch. The heating source for the three model heatsinks is an electric heater that can reach a heating temperature of 100oC. Air flow velocity is varied from 0.5 m/s, 1.0 m/s and 1.5 m/s. The results of this experiment show that the heat dissipation rate is directly correlated with the air flow velocity and the heat transfer surface area. At flow velocities of 0.5 m/s, 1.0 m/s and 1.5 m/s, the air temperature behind the heat sink (T2) is 62.8oC, 56.7 oC, and 52.4 oC, respectively. From the heat calculation results show that the shape of the heatsink -model 3- dissipates heat higher than others where the surface area is much larger. For a flow velocity of 0.5 m/s, the rate of heat dissipation generated in model 1, Model 2 and model 3 are 26875 J/s, 34449.01 J/s and 37686.19 J/s, respectively. Keywords: Heat dissipation, surface model, air flow and heatsink.

Perancangan dan Penguji Gasifikasi Kulit Mente dan Sekam Padi Sebagai Sumber Energi Alternatif Harlan, Harlan; Mangalla, Lukas Kano
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 1 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The purpose of this study is to make an updraft gasification design for a mixture ofthe composition of a mixture of cashew shell and rice husk that produces an optimalgas material, the method used is to make a direct manufacture of an updraft typegasification reactor and to take temperature measurements for each of thespecified compositions. The results showed that the design of the updraftgasification device for cashew skin and rice husk functioned well, because of thegasification process carried out by the two fuels used to produce flammable gas.The best mixture composition is a mixture of 500 grams of rice husk and cashew skin 500 grams with a temperature of 450 ˚C cashew skin and rice husk that produces optimal gas. Generally, the fuel used produces in the 15-20 minutes.Keywords: Gasification reactor designer, Gasification; Alternative Energy

Pengaruh Jumlah dan Panjang Blade Terhadap Performa Kincir Angin Pongbarib, Esau Irsan; Mangalla, Lukas Kano; Hasanudin, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Energy needs continue to increase in line with the increasing population, while fossil energy is very limited and has a negative impact on the environment. Therefore, alternative energy sources such as wind energy are very important to be developed. This study observes the effect of the number of turbine blades and blade length on the rotation and current output. The study was conducted experimentally using the 2, 3, and 4 number of blades, while the length was varied from 10 cm, 15 cm and 20 cm. The blades performance is compared by measuring the blade rotation and current generated from an electric dynamo connected to the blade rotation. We also carried out several variations of wind speed for each number and length of the blade. The results showed that the number of blades 3 and 4 produced almost the same electric current and rotation while the number of blades of 2 was much smaller. It can also be seen that the blade length of 15 cm gives a large rotation followed by a length of 20 cm and 10 cm.Keyword: Windmill, blade length, performance

Pengaruh Variasi Komposisi Terhadap Karakteristik Briket Campuran Sekam Padi Dan Kulit Jambu Mete Aljaninansya, Rusdi; Mangalla, Lukas Kano; Sudia, Budiman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 3 (2019): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

This research aims to determine the characteristic briquettes of rice husk and sawdust. The treatment of this research includes non-carbonization processes, composition variation 30 % rice husk, 70 % sawdust powder, 50 % rice husk, 50 % sawdust powder, and 70 % paddy Husk, 30 % sawn wood powder (adhesive material considered homogeneous) as well as pressure variations (50 kgf/cm2, 100 kgf/cm2 and 150 kgf/cm2). The results of these things show that the higher the percentage of rice husk then the combustion time will be relatively longer, composition 50% rice husk and 50 % sawdust powder produces a higher maximum temperature than other composition, the higher the pressure given then the briquette density level will be greater and the resistance level the briquette will be higher and the Resistance index briquette is strongly influenced by the pressure and material composition briquette. Keywords: Briquet, rice husk, sawdust, non-carbonization

Pengaruh Pemanasan Bahan Bakar Terhadap Laju Konsumsi Bahan Bakar Pada Sepeda Motor Sistem Karburator Faradila, Uswatun; Mangalla, Lukas Kano; Sudia, Budiman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 1 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The increasing human need for transportation requires maksimum engine performance and efficient fuel consumptiton on carburetor system motorcycles. In an effort to improve engine performance it is done various ways one of which is by preheating the fuel. This study aims to determine engine performance through preheating the fuel. This research was conducted on a motorcycle with a carburetor system by providing treatment without heating and by heating the fuel with a fuel preheat temperature of 60oC, 80oC, and 90oC at 2500 rpm engine speed and the fuel used is gasoline and pertamax. In this study, fuel consumption increased at 90oC by 0,38 (Kg/hour), at 80oC and 60oC decreased by 0,30 (Kg/hour) and 0,21 (Kg/hour). Specific fuel consumption at temperature 90oC increased by 0,195 (Kg/kWh), at 80oC and 60oC decreased by 0,155 (Kg/kWh) and 0,106 (Kg/kWh) in gasoline, while in pertamax fuel, fuel consumption more efficient than gasoline, namely at a temperature of 90oC increased by 0,33 (Kg/hour), at 80oC and 60oC decreased by 0,22 (Kg/hour) and 0,19 (Kg/hour) while the specific fuel consumption at a temperature of 90oC increased by 0,170 (Kg/kWh), at 80oC and 60oC it decreased by 0,113 (Kg/kWh) and 0,095 (Kg/kWh).Kata kunci: Engine Performance, Preheating of fuel, Temperature Variations

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

Analisa Kapasitas dan Kebutuhan Daya Pada Sistem Distribusi Feeder Benu-Benua Buransa, Armin Sole; Mangalla, Lukas Kano; Hasanudin, La
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.v9i1.46713

The distribution system is part of the electric power system. This distribution system is useful for distributing electricity from large power sources (bulk power sources) to consumers. However, in this distribution there are often obstacles such as disturbances in the distribution network system. In general, the good and bad of the electricity distribution and distribution system is mainly in terms of the quality of the power received by consumers. This research was conducted to determine the capacity and demand for electricity used against the load in the city of Kendari and to determine the care and maintenance of the distribution system in the city of Kendari. In collecting data, a field survey was carried out at the research location, namely at the New Kendari 150 KV Substation. At the largest average load occurs in the old city line with a power of 38.734,25. While the peak load and demand factor on each line has a different amount. And the biggest voltage loss occurs in the alolama line of 9,9% and the lowest in the old city line of 3,8%. It can be concluded that on the Kemaraya Line the average load obtained is 38.839,25 with the highest load occurring at 18.00 at 6,068 while the highest demand factor occurs on the Kemaraya Line at 19.00 at 134,5. Kata kunci: Load Factor, Capacity, Power Requirements

Analisa Kekuatan Tali Baja Sling Crane Berkapasitas 40,6 Ton Di PT. Pelindo IV (Persero) Kendari Ashbah, Ashbah; Mangalla, Lukas Kano; Aksar, Prinob
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.v8i1.29826

At the port usually the tools used as moving goods are container cranes, container cranes have the main component of steel rope slings which function as lifting cables on the hoist, usually chosen according to the needs of a construction for that it is necessary to analyze the strength of the steel rope slings currently used and comparing the steel rope with other types of steel rope in order to obtain a more comprehensive understanding of alternative steel rope selection that is appropriate for use in container/container lifting mechanisms. Research Objectives To analyze and determine the strength of a sling crane steel rope with a capacity of 40.6 tons and to determine the electrical power used. The research method is to make observations to determine the length of the steel rope using a roll meter and the diameter of the steel rope using a caliper. research, namely the calculation on wire rope obtained 3,896, kg, the cross-sectional area of the steel rope is 615.44 mm², the breaking stress is 6,330 kg/mm², the permissible breaking load of the steel rope is 12,150 kg, the tensile stress on the steel rope is 2,518 kg, the calculation on driving machine The resulting power (N) is 40.21 kW, the moment of static resistance on the motor shaft (M) is 239.927 kg.m.Keywords: Container, crane, steel rope, container

Co-Authors Abd Kadir, Abd Abd. Kadir Abd. Kadir Ade saputra Agustinus Lolok Agustinus Lolok Agustinus Lolok Aksar, Prinob Aljaninansya, Rusdi Ambo Upe Aminur Aminur Amrullah Andi, La Ode Anwar, Fardillah Ashbah, Ashbah Ato, La Awaluddin, Andi Bahdin Ahad Badia Budiman Sudia Budiman Sudia, Budiman Buransa, Armin Sole Darwin Darwin Darwis, Mardis Dedu, La Ode Arfan Defi, Sry DWI SURYANTO Erick Patollong Faradila, Uswatun Feliks Eldad Larobu Firsan, Muhammad Fitriah Masud Golok Jaya, La Ode Muhammad Hamisa, Hamisa Hamisa Harlan, Harlan Hasanudin, La I Made Suardjaja Idris Idris Idul, Idul Imran, Al Ichlas Jaka Seru Dwi Saputra Kadir Kadir Kaebansiha, Rajab Jandipo Kusmardin, Kusmardin La Ode Ahmad Barata La Ode Muhamad Nurrakhmad Arsyad Laode Abdul Gamsir Lolok, Agustinus Masrianto, Zulqifli Muh. Rizal Ode Muhammad Basir Mustarum Musaruddin Nuraida, Waode Nurudin, La Ode Pagiling, luther Pongbarib, Esau Irsan Putra, Bima Rangga Putra, Muhammad Idris Raden Rinova Sisworo Ramadhan, Muhammad Syahrul Randi, Heri Ridway Balaka, Ridway Romy Suryaningrat Edwin Rustam Efendi Sabilah, Laode Muhamad Zakirus Sadimantara, I Gusti R Sadimantara, Muhammad S Said, Harman Salimin Salimin, Salimin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin Samhuddin, Samhuddin Sarifudin sarifudin, Sarifudin Sidik, Sahril Simatupang, Minson Sudia, Budiman S Suramas, Fransiscus R Syahrir, Muhamad Ashar Taufik, Muhamad Rian Teguh Wijayanto Yulius B. Pasolon Yulius Barra Pasolon Zulkaida, Wa Ode

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