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All Journal Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin

Budiman Sudia

Teknik Mesin UHO

Author-ID : 5374740

Mechanical Engineering

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Perancangan dan Desain Alat Press Hidrolik Kapasitas Maksimal 10 Ton La Sarif; Sudarsono Sudarsono; Budiman Sudia
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Hydraulic press as a tool for molding material. This study aims to design and design tools with a maximum level of 10 tons and to determine the components and dimensions of the press. In this study the center uses the jack as the center of loading. For the size of this height 78 cm and width45 cm with bolt fasteners using clay steel material with 0.22 (%) C with tensile strength 42 (kg/mm2), shear stress 3 (kg / mm2), and the outer bolt diameter is 60 (mm) with a distance for the 5.5 (mm) M60 bolt crusher. As for the strength of the material from the components of the press tool has a permit voltage of 37 (kg / mm2), a bending moment of 750 x 103 (kg / mm) with a moment of inertia of 360 x 103 (mm4) and a voltage of 31.25 (kg / mm2). For governance factors 1.18 (kg/mm2).Keywords: Tool, hydraulic, design, safety factor

Analisis Pengaruh Penambahan Kawat Tembaga Terhadap Kompor Minyak Jelantah dengan Campuran Minyak Tanah Asmin Asmin; Budiman Sudia; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 4 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The stove is a fire-producing device to heat an object. Heating solid objects can be done directly on the fire or indirectly on the fire or indirectly by using the media stove. The purpose of this study was to determine the effect of adding copper wire to the stove wick on the performance of a used cooking oil stove with a mixture of kerosene. This research procedure is divided into several stages, namely first assembling the used cooking oil stove wick, then testing the results of the effect of adding copper wire to the used cooking oil stove wick with a mixture of kerosene. From the results of tests carried out from the results of data analysis, namely the addition of each copper wire the average temperature is always changing as well as the time. In this study, a good average temperature or it could be said that the temperature increased, namely the addition of one copper wire. So the addition of copper wire in this study greatly affects the temperature of the stove's flame. The characteristic of the flame produced by mixing used cooking oil and kerosene is reddish yellow in color. The characteristics of the flame produced by mixing used cooking oil and kerosene are reddish yellow with a maximum height of 11 cm - 15 cm in each percentage of the mixture. Keywords: Addition of copper wire, jelantah oil, kerosene

Analisis Pengaruh Fouling dan Slagging Terhadap Kinerja Boiler Subcritical pada PLTU Moramo Fadhilla Inaswara; Budiman Sudia; Raden Rinova Sisworo
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 2 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Boilers that use low-quality coal result in an increase in the amount of coal burning and the high formation of accumulated ash deposits (fouling and salgging). It is necessary to conduct research the effect of fouling and slagging on boiler efficiency in steam power plant Moramo for the boiler performance improvement purpose. The objective of this research are identified fouling and slagging and how its affect boiler performance. By using the principle of mass and energy balance, heat transfer in the evaporator and superheater areas are used as the basis for identifying slagging and fouling. Boiler efficiency is calculated by a direct method. An increase in flue gas temperature which is affected by a degradation in the rate of heat transfer indicates the formation of slagging and fouling. Boiler efficiency is related to the slagging index and sodium content in the ash of coal, the result of higher slagging index and lower the sodium content will further increase boiler efficiency. The best average efficiency of boiler is 89.853% when coal from supplier Y used as fuel with slagging index value is 2370.2 and sodium content in ash is 0.48%..Keyword: Fouling, slagging, heat transfer, efficiency, boiler

Pengaruh Penggunaan Uap Kering Pada Proses Pirolisis Limbah Plastik Lalu Junaedi R.Y.P; Budiman Sudia; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 3 (2019): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Pyrolysis is a fascination process by increasing temperatures without or less oxygen. This research aims to compare the use of gas pressure and gas-burning temperatures that were hasyfish. In this study, the reabsorption of 500 gr in the druse variable of the interactive waste is the type of PET (Polyethylene) with two types of the pyrolysation of the pyrolysis without being dry and the pyrolysis is with the athletes. Research began in preparation for the preparation of the test, preparation of ryl, precursors and research with gas pyrolysis. Further conducted analysis for each product. The highest gas pressure has a pyrolysation trial with an average of 0,04125 MPa while for the pyrolysis, without either a 0,02375 MPa while the average gas of the highest gas air date on the test pyrolysis without a dry temperature at 971,5 °C whereas the water is called for the water of the process of the 962,75 °C.Keywords: Pyrolysis, plastic garbage, gas, and dry steam

STUDI EKSPERIMEN PENGGUNAAN AIR GARAM SEBAGAI SUMBER ENERGI ALTERNATIF Muh Ali Usman; Muhammad Hasbi; Budiman Sudia
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 2, No 3 (2017): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The aim of this study was to determine the effect of cross-sectional area of copper and zinc to the brinegenerated power as an alternative energy source.Equipment and materials was used in this studywere theAVO meter, pliers, meter, measuring cups, wells water, salt, copper plate, zinc plate, cables and glass. Theprocedures of this study were to prepare tools and materials, then making an electrochemical cell as much as10 cell container of water and salt using glass, making the series circuit plate of copper and zinc, making asolution of water and salt, then test the salt water as an alternative energy source using AVO meter, Theparameters measured in this study were a big potential and strong electric currents are able to produce brinewith a variety of cross-sectional area of copper and zinc 7 cm2;7 cm2, 7 cm2; 14 cm2, 7 cm2; 21 cm2 and 14cm2; 7 cm2, 14 cm2; 14 cm2, 14 cm2; 21 cm2 and 21 cm2; 7 cm2, 21 cm2; 14 cm2, 21 cm2; 21 cm2. In brinetesting, into energi source, a large power was found on 21 cm2 of 0,899 W elektrode while to increase thepotential value of electric can be done by increasing the number of cells.Keywords: Water, salt, electrochemical cells, alternative energy .

Analisa Kekerasan dan Struktur Mikro Sambungan Las Kampuh V Tunggal dan Kampuh V Ganda Pada Baja Karbon Rendah Jusman Jusman; Sudarsono Sudarsono; Budiman Sudia
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 4 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The development of production technology and metal raw materials cannot be separated from the use of welding technology. So that it can be said that there is almost no metal that cannot be welded. Welding is a metal joining technique by partially melting the main metal and filler metal. The purpose of this study was to determine the hardness and microstructure of single v seam weld joint and double v seam welded on low carbon steel. In this study, using hardness testing methods and conducting microstructure observations to determine the structure formed in the welding results. The results showed that the micro structure of the single seam v was dominated by pearlite which had high hardness properties with an average value of hardness in the weld metal area of 142.80 kg / mm2, the HAZ area of 132.72 kg / mm2, and the area Main metal (Base Metal) is 121.46 kg / mm2, while the double seam v is dominated by ferrite which has low hardness properties with an average value of weld metal (Weld Metal) of 125.80 kg / mm2, HAZ area of 121 , 20 kg / mm2, and the base metal area of 112.60 kg / mm2. Keywords : SMAW, Low Carbon, hem, hardness.

Pengaruh Penggunaan Zat Aditif Minyak Cengkeh Terhadap Prestasi Mesin Sepeda Motor Injeksi 4 Langkah Pegi Satria Eka Paksi; Budiman Sudia; Abd . Kadir
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 4 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

At this time, fuel oil has become a basic need by the Indonesian people due to the increase in the use of vehicles, while the government is still subsidizing fuel oil. For this reason, it is necessary to save on the use of fuel oil. The alternative that can be done is reformulating fuel oil with additives that function to enrich the oxygen content in the fuel. The purpose of this study is to determine the performance of the engine which can be seen from the fuel consumption and acceleration of the vehicle in which the percentage of clove oil mixing which is most effective in its use will be known. This research includes mixing 1.5%, 2.5%, 3.5% and 4.5% mixture of clove oil to premium/gasoline. In this study, the formulation of a premium fuel/gasoline mixture with clove oil was most effective and efficient on fuel consumption, namely in the stationary test it was a mixture of 1.5% while in the running test it was a mixture of 2.5%. For the acceleration test, the best mixing formulation is in the 4.5% mixture formulation, both in the 0-70 km and 40-70 km tests.

Desain Dan Analisa Pembebanan Statik Terhadap Kekuatan Pelek Modifikasi Tipe Cast Wheel Pada Sepeda Motor Menggunakan Software Solidworks Muslimin Muslimin; Yuspian Gunawan; Budiman Sudia
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 4 (2019): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

In the automotive world, there have been many accidents caused by plasticdeformed rims. The purpose of this study was to design and analyze static loading on the modified rim strength of the cast wheel type on a motorcycle. The analytical method used to analyze is by using Solidworks software, analysis of static loading simulation to be carried out with 3 variations of the rim model and 3 variations in the number of spokes (8, 6, and 4 spoke) at a speed of 70 km/hr. From the results of the simulation analysis, all modification of the cast wheel rim type was analyzed, obtained the value of the safety factor included in the safe to use category. Modified rim type cast wheel model A with the number of spoke 8 obtained the largest maximum voltage value that is equal to 1,372,E+09 N/mm2, while for the smallest maximum voltage value obtained on rim model C with the number of spoke 4 which is 7,863,E+08 N/mm2 .Keywords: Static Loading, rim modification, cast wheel, solidworks software

UNJUK KERJA MESIN PENCACAH SAMPAH Juardin Juardin; Budiman Sudia; Al Ichlas Imran
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 2, No 4 (2017): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The aim of this research is to know the difference of time and of the result of plastic waste enumeration on blade before and after modification to material weight of 250gr, 500gr, and 750gr. This study compared the length of time and of the enumeration results on the blades before they were modified and after modified. Variations in waste weight were 250gr, 500gr, and 750gr. The results showed that the percentage comparison of the length of the process of enumerating plastic waste before modification with the weight of 250gr resulted in enumeration time for 35 seconds, so that the effective capacity of the tool was 25.71 kg / hour. For weight of garbage equal to 500gr produce enumeration time for 126 second, with tool capacity 14,28 kg/hour. While the weight of garbage 750gr produce enumeration time for 192 seconds, with the effective capacity of the tool of 14.06 kg/hour. For the conditions after modification of the blades, the weight of the waste of 250gr resulted in an enumeration time of 80 seconds, in which the effective capacity of the apparatus was 11.25 kg/hr. For the weight of garbage of 500gr was resulted enumeration time for 255 seconds, where the effective capacity of the tool obtained was 7.05 kg/hour. While the weight of 750gr garbage generates the enumeration time for 401 seconds, where the effective capacity of the tool obtained of 6.73 kg/hour. The quality of enumeration of plastic waste on the blades before the modification was still not chopped properly, while the results of plastic waste debris on the blades after modified has been chopped well but the results were not irregular. Keywords: Plastic waste, chopping machine, enumeration time, size of enumeration result.

Analisis Pengaruh Perubahan Tekanan Vakum Kondensor Terhadap Heat Rate Turbin Di PLTU Moramo Sebelum dan Sesudah Perawatan Bagus Andi Saputro; Budiman Sudia; Abd. Kadir
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 6, No 1 (2021): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

PLTU Moramo is one of the Independent Power Producers (IPP) that supplies electricity to PT PLN. PLTU Moramo make use of turbine-generator with an installed capacity of 2x50 MW Steam Turbine - Full Condensing. PLTU Moramo Unit 1 experienced an increase in the condenser vacuum value after routine maintenance, the increase in the vacuum value affected to the heat rate and efficiency of the steam turbine cycle. The research conducted is to analyzes the effect of changes in the value of the condenser vacuum on the heat rate and efficiency of the steam turbine cycle by using a thermodynamic analysis approach and energy input-output methods. Data analysis uses actual parameters taken from the Distributed Control System (DCS) during normal operation. The results obtained in this study indicate that an increase in the condenser vacuum value affects the heat rate and efficiency of the steam turbine cycle, an increase in the vacuum value of -1 kPa results in a decrease in the average turbine heat rate of 57,673 kJ/kWh for a load of 40 MW Net and 93,575 kJ/ kWh for 50 MW Net load. Meanwhile, the average value of the steam turbine cycle efficiency increased by 0.37% for a load of 40 MW Net and 2.19% for 50 MW Net. Keywords: heat rate, efficiency, PLTU, vacuum

Co-Authors Abd . Kadir Abd. Kadir Al Ichlas Imran Ambo Sakka Angga Zeptiawan Sastal Asar Asar Asmin Asmin Bagus Andi Saputro Esparuling Esparuling Fadhilla Inaswara Harman Said Herbianto Anto Idris Idris Juardin Juardin Jusman Jusman La Hasanuddin La Ode Iqwal La Sarif Lalu Junaedi R.Y.P Lukas Kano Mangalla, Lukas Kano Muh Ali Usman Muh. Afdal Djalil Muh. Andri Muh. Azim Panca Wardana Muhammad Faisal Muhammad Hasbi Muslimin Muslimin Nanang Endriatno Pegi Satria Eka Paksi Raden Rinova Sisworo Rusdi Aljaninansya Salimin Salimin Samhuddin Samhuddin Sudarsono Sudarsono Sudarsono Sudarsono Tri Agusti Uswatun Faradila Yuspian Gunawan

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