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Program Studi Teknik Mesin, Fakultas Teknik, Universitas Lambung Mangkurat Jalan Jenderal Achmad Yani KM 35,5 Banjarbaru, Kalimantan Selatan - 70714
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Scientific Journal of Mechanical Engineering Kinematika
Published by Universitas Lambung Mangkurat
ISSN : 26559048     EISSN : 2655903X     DOI : http://dx.doi.org/10.20527
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is a mechanical engineering journal that focuses on Energy, Applied Mechanics, Materials, Manufacturing Processes. SJME Kinematics journal publish in Indonesian and receive in English. Scientific Journal of Mechanical Engineering Kinematika (SJME Kinematika) is an Open Access Journal that is available for free on online media. We are not only accept journals that focus on the derivatives of the four fields below, but also the possibility of an integrated focus of fields from several fields.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 133 Documents
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STUDI NUMERIK: PENGARUH DEBIT INLET TERHADAP KARAKTERISTIK PELELEHAN PARAFFIN WAX PADA TABUNG SILINDER Fajar Anggara; Henry Carles; Pathur Razi Ansyah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (550.132 KB) | DOI: 10.20527/sjmekinematika.v4i1.48

Abstract

Latent Heat Thermal Energy Storage (LHTES) is the method to store thermal energy by changing the phase of Phase Change Material (PCM). This method is being developed to store heat loss for increasing energy efficiency. In this paper, the effect of variation flow rate on the melting characteristics PCM was investigated by three-dimensional numerical simulation using ANSYS FLUENT 17. The set-up of this research was carried out on concentrically two cylindrical tubes with diameter outer tube 10 cm and length 60 cm while diameter inner tube 5 cm and length 50 cm. The inner tube is used as a PCM container and the outer tube which has bottom and top hole is used as Heat Transfer Fluid (HTF) circulation. Variation HTF or hot water flowrate was carried out by 4L / min, 8L / min and 12 L / min while the temperature is kept at 75oC, then flowed through bottom hole and out to top hole. From this study it was found that the variation flow rate did not have significant effect on the melting pattern, only the greater flow rate, the smaller melting time. Natural convection is the main role of heat transfer when melting.
KARAKTERISTIK BRIKET LIMBAH TONGKOL JAGUNG DENGAN PEREKAT TEPUNG BIJI NANGKA SEBAGAI BAHAN BAKAR ALTERNATIF Ibrahim Hasan; Abdul Ghofur
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (223.405 KB) | DOI: 10.20527/sjmekinematika.v4i1.49

Abstract

Briquette is one of the alternative energy sources as a satisfactory substitute for fossil fuels in which the availability decreases every single day. The main materials of briquettes can be biomass. Biomass is an organic material produced by photosynthetic process, the materials may be product, remnant or waste. One of the potentially great biomass to be used as the main ingredient of briquettes is corncob. This study aims to (1) know the characteristics of corncob briquettes with adhesive jackfruit seed flour including moisture content, ash content, volatile matter and calorific value, (2) know the characteristics of the best corncob briquettes based on SNI standard. Corn cobs were converted first to charcoal with carbonization process, and then the charcoal was mixed with adhesive derived from jackfruit seed flour. In this study, variations of corncob to jackfruit seeds ratios were 90%: 10%, 85%: 15% and 80%: 20%, respectively. Then a mixture of charcoal and flour was molded with a molding pressure variation of 100 kg/cm2 and 120 kg/cm2. The parameters of briquette characteristics based on SNI 01-6235-2000 are moisture content, ash content, volatile matter and calorific value. The results show that the best characteristic briquettes is briquettes with sample code of B1 with charcoal to jackfruit flour ratio of 90% to 10% and printing pressure of 120 kg/cm2. The briquettes have water content characteristics of 7,0073%, ash content of 6,8876%, volatile matter of 17,8983% and calorific value of 6241,8137 cal/gram. But overall, the briquettes have not met the SNI 01-6235-2000 standards because the level of volatile matter in the briquettes exceed the maximum limit that has been determined i.e. 15%.
ANALISIS EFISIENSI BOILER DENGAN METODE INPUT– OUTPUT DI PT. JAPFA COMFEED INDONESIA Tbk. UNIT BANJARMASIN Imam Muzaki; Aqli Mursadin
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (589.272 KB) | DOI: 10.20527/sjmekinematika.v4i1.50

Abstract

This paper shows some of the research results. The result of this research shows that the boiler efficiency at operational condition (present) is 79,32% decreased efficiency equal to 9,19% compared with operational condition with efficiency as big as 88,51%. One of the factors analyzing the declining efficiency of the boiler is greatly influencing the heat transfer process, because if there is dirt or crust on the boiler pipe and the fouling, it will result in the process of heat transfer will decrease so that the heat transfer rate will decrease, and will also affect the amount of heat losses in the boiler.
PERANCANGAN PROTOTYPE ALAT PENGURANG KADAR AIR PADA MADU KAPASITAS 5 LITER Achmad Kusairi Samlawi; Wahyu Slamet Pamungkas
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (762.802 KB) | DOI: 10.20527/sjmekinematika.v4i1.51

Abstract

The quality of Honey must meet the requirements set by the Indonesian National Standard (SNI) in 2004. In the standard set, the enzyme diastase function is at least 3 DN, hydroxymethylfurfural (HMF) maximum 50 mg / kg, maximum air content is 22% b / b, sugar reducing at least 65% b / b,asucrose maximum 5% b / b, acidity maximum 50 milliecivalents / kg, solids not up to maximum 0.50% b / b, maximumAash content 0.50% b / b (BSN), 2004) To meetAthese standards designedAa tool that willAreduce the air content in honey without damaging it as it is vaccinated at -70 -70 bar with temperatures below 40 ° C. With the results of the balance shows: (1) electric motor with power ¼ HP with 1400 rpm rotation. (2) V-belt transmission with large outside pulley dimensions = 231.3 mm, small outer plley = 104 mm. Using a v-belt with no. 44 in / 1118 mm. Horizontal shaft with dimensions of large pulley shaft diameter = 18 mm and small pulley shaft diameter = 15 mm. (3) Using a gearbox damper with a ratio of 1:40. (4) Stirrer shaft with 304 grade stainless steel material with a length of 975 mm and a shaft diameter of 40 mm. (5) Stirrer impeller with six blade impeller type with dimensions of diameter 1667, mm and thickness of 3 mm. (6) Vessels with cylindrical types and having a thickness of 2.5 mm, a diameter of 500 mm and a length of 500 mm. With an ellipsoid head type with dimensions of 520 mm in diameter, 125 mm in height and 2.5 mm in thickness. (7) Frame with a profile of mild steel profile dimension dimensions of 40 mm x 40 mm x 2.5 mm.
PENGARUH VARIASI PENDINGIN TERHADAP KEKUATAN BENDING PADA PENGELASAN TEE JOINT EQUALIZER TYPE YORK TRAILER Akhmad Syarief; Baramsyah Baramsyah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.182 KB) | DOI: 10.20527/sjmekinematika.v4i1.52

Abstract

In the present era of technological developments in the industrial world is growing and progressing. But in the industrial world can not be separated from the manufacturing process, especially in the field of welding, because welding has an important role in engineering or reparasi-raparasi associated with metal welding. And also a lot of welding is used in the field of design. The scope of welding use in construction is very wide including shipping industry, bridge, steel frame, heavy equipment, transportation facilities, pipeline and so forth. In the process of welding requires a person who is reliable or skilled in welding work, in order to produce good quality results. The highest value of bending stress is found on air cooling medium that is 2870,17 N/mm², And the lowest bending voltage value is in water cooling that is 2460,1 N/mm².. The highest shear stress value is in air cooling medium ie 197.96 N/mm², and the lowest shear stress value is in water cooling that is 169.68 N/mm². The bending voltage value allowed is the highest in the air conditioning medium 2474.5 N/mm², And the lowest permissible bending stress value is found in water cooling of 2121 N/mm².
ANALISIS KEANDALAN (RELIABILITY) PADA MESIN DIGESTER (STUDI KASUS : PT. SMART TBK BATU AMPAR MILL KOTABARU) Dwi Mulyono Putro; Qomariyatus Sholihah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.447 KB) | DOI: 10.20527/sjmekinematika.v4i1.53

Abstract

Reliability is the application of design to the component so that the component can perform its function properly. Research conducted on Digester machine that its role is quite high at PT. SMART Tbk. Batu Ampar Mill, the method used is Reliability with MTTR Method. From the calculation results obtained Digester engine reliability value in 2015 has the highest reliability value of 0,8692 at the time of calculation 329,4 hours, And in 2016 has a reliability value of 0,2972 at the time of calculation of 389,45 hours. The value of digester machine reliability in 2015 is higher than in other years, this is evidenced that the life of the Digester machine in 2015 is more dominant than in year 2016. The higher the reliability value the better the machine used in the operation process.
ANALISIS EFISIENSI BOILER UNIT 2 DAN 4 DI PT. PLN (PERSERO) WIL. KALSELTENG SEKTOR PLTU ASAM-ASAM Aries Aditya Kurniawan; Aqli Mursadin
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.47 KB) | DOI: 10.20527/sjmekinematika.v4i1.54

Abstract

Boiler is a tool used to produce steam / steam for various purposes. The water in the boiler is heated by heat from the fuel combustion (other heat source) resulting in heat transfer from the heat source to the water causing the water to become hot or transformed into steam. Direct Methods Also known as "input-output method" because this method requires only output / output (steam) and heat input / fuel (fuel) for efficiency evaluation. From the results of boiler efficiency study from August 8, 2017 to August 17, 2017 with a total average - unit 4 has a boiler efficiency 75.5012% higher than unit 2 which only amounted to 65.24% 84%. The high efficiency of boiler unit 2 is due to the average pressure on unit 4 of 86.9229 bar is greater than the pressure of unit 2 which is only about 82.9155 bar. Then Main steam flow on unit 4 is 66,6605 kg / s while unit 2 is only 63,61111 kg/s. For feed water flow unit 4 only able to flow 65,9 kg / s and unit 2 equal to 66,675 kg/s.
PENGARUH TEMPERATUR TUANG DENGAN JENIS MATERIAL PADUAN Al RONGSOK (KAMPAS REM PANCI) TERHADAP POROSITAS, KEKERASAN DAN STRUKTUR MIKRO HASIL PENGECORAN EVAPORATIVE Syaiful Rahman; Rudi Siswanto
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (447.909 KB) | DOI: 10.20527/sjmekinematika.v4i1.55

Abstract

Recycling is a way of processing used materials that is started with selection, collection, then the process of foundry to create a new product that is more valuable economical. The objective of this research is to know the effect of casting temperature with the kind of guide material AI alloy junk from brake shoe and pan on porosity, hardness, microstructure (the evaporative foundry result). The recycling of used aluminum is an alternative to reduce the waste material from aluminum. Casting temperature is an variable that can effect the result of foundry where if the casting temperature is low, then there will be a quick freeze before the mold is completely filled. And if the casting temperature is too high, then shrinkage can occur and the porosity value may increase. This research used four casting temperature variations, namely: 650°C, 700°C, 750°C, and 800°C. The evaporative foundry method uses styrofoam pattern that is piled up into sand mold. The metal that is casted will form like styrofoam pattern. The result of casting temperature testing can effect on porosity, hardness, and microstructure.
PENGARUH JARAK ANTAR ELEKTRODA PLAT BESI TERHADAP PRODUKTIVITAS DAN EFISIENSI GENERATOR HHO MENGGUNAKAN METODE ELEKTROLISIS AIR LAUT DENGAN KATALIS KOH Akhmad Daudi Shabahaini; Mastiadi Tamjidillah
Scientific Journal of Mechanical Engineering Kinematika Vol 4 No 1 (2019): SJME Kinematika Juni 2019
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (737.261 KB) | DOI: 10.20527/sjmekinematika.v4i1.56

Abstract

HHO gas is an alternative energy that can replace fossil energy sources. HHO gas itself can be produced in several ways, one of which uses water electrolysis. Water is given a direct electric charge so that the water molecule (H2O) splits into HHO gas. This study aims to determine the effect of iron plate electrode distance on the productivity and efficiency of HHO generator by varying it from 2 mm, 4 mm and 6 mm, for the water used is the sea water of Teluk Tamiang Village which was dissolved together with KOH of 3,04%. From the experiments carried out the data obtained in the form of voltage, current, time to produce 50 ml of HHO gas, pH of sea water, pH of the solution before and after electrolysis, and temperature after electrolysis. The data is then processed so that it gets the highest productivity at a distance of 2 mm with an average flow rate of 0,89 ml/s and the highest efficiency at a distance of 2 mm with an average of 23,83%. This is because at a distance of 2 mm the electrons move from the cathode electrode to the anode electrode faster and the resulting resistance is smaller, so that the HHO generator produces faster oxyhydrogen bubbles and less power and energy consumption.
PENGARUH TEMPERATUR TUANG DENGAN JENIS MATERIAL Al PADUAN (RONGSOK WAJAN) TERHADAP KEKERASAN HASIL PENGECORAN EVAPORATIVE Hidayat, Taufiq; Tamjidillah, Mastiadi
Scientific Journal of Mechanical Engineering Kinematika Vol 1 No 1 (2016): SJME Kinematika June 2016
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (869.01 KB) | DOI: 10.20527/sjmekinematika.v1i1.86

Abstract

The objective of this research is to know the effect of casting temperature with the kind of guide material AI alloy junk from pan on hardness (the evaporative foundry result). The recycling of used aluminum is an alternative to reduce the waste material from aluminum. Recycling is a way of processing used materials that is started with selection, collection, then the process of foundry to create a new product that is more valuable economical. Casting temperature is an variable that can effect the result of foundry where if the casting temperature is low, then there will be a quick freeze before the mold is completely filled. And if the casting temperature is too high, then shrinkage can occur anditheiporosity value may increase. This research used four casting temperature variations, namely: 650°C, 700°C, 750°C, and 800°C. The evaporative foundry method uses styrofoam pattern that is piled up into sand mold. The metal that is casted will form like styrofoam pattern. The resultiof casting temperature testing can effect on hardness.

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