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Jurnal Teknologi
Published by Universitas Muhammadiyah Jakarta
ISSN : 20851669     EISSN : 24600288     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering
This journal is a scientific journal to develop knowledge in the field of Engineering & Technology. Editors invite professionals from education and researcher to write about the progress of science in the field of Engineering & Technology. The journal is published 2 (two) times in 1 year.
Arjuna Subject : -
Articles 17 Documents
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Search results for , issue "Vol 15, No 2 (2023): Jurnal Teknologi" : 17 Documents clear
PERANCANGAN ENTERPRISE ARCHITECTURE MENGGUNAKAN KERANGKA KERJA ZACHMAN PADA PERUSAHAAN DISTRIBUSI Johanes Fernandes Andry; Frian Debby; Jodie Darmawan Wijaya; Julia Gunadi
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.287-298

Abstract

The implementation of information systems must be equal with company's purpose, because at this business era it is an important thing to be paid more attention to by agencies, because the realization of an effective, efficient and accountable information system will certainly help companies to excel in the competition. PT. Anugerah Familindo Lestari is an industry whose business activity is distributing skin and hair care products, the products distributed by this company already have well-known brands and are believed to have the best formulas. This company already has good governance, but of course the company's problems cannot be said to be finished because the information system within the company is still not used optimally, therefore the company needs to do an Enterprise Architecture that can provide clear direction about data, information and all technology that is needed. There is also a thinking tool that is used to discuss problems in system development, the thinking tool in question is the Zachman Framework, this framework helps map and model the IS and IT architecture within the company to be investigated from various perspectives. This research was conducted using the EAP method with the Zachman framework in the form of initialization and planning, business modeling, analysis of current systems, data architecture, applications and technology and implementation plans, then the authors get the results in the scheme of a blueprint which I hope can be a picture that helps companies to realize the system. information in harmony with the enterprise's vision and mission in the future.
PENERAPAN UNDERDRAIN BOX STORAGE UNTUK PENANGGULANGAN GENANGAN DAN PENINGKATKAN RESAPAN AIR DI KELURAHAN PENURUNAN Jhordi Hendarwan; Meilani Belladona; Tri Sefrus
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.199-206

Abstract

Decreased Village has an area of 86 hectares with a population of 4946 people. The land located around this area has undergone rapid land use changes since the establishment of the largest shopping center in Bengkulu Province, namely Bengkulu Indah Mall (BIM). The construction of buildings in this area does not pay attention to the waste water disposal system and rainwater drainage, so that during the rainy season this area, especially in front of the BIM, often experiences puddles. Underdrain Box Storage is one of the eco-drainage concepts that can be developed for dense settlements (urban settlements). The technical concept of drainage put forward is that rainwater puddles are channeled through an open channel where at the bottom is given holes arranged in a series along the channel as a function to fill the storage space, where the bottom of the reservoir is directly connected to the soil. The problem in this research is how to apply Underdrain Box Storage to overcome inundation and increase water infiltration in Decrease Village. The purpose of this study was to design an Underdrain Box Storage design to overcome puddles and water infiltration in Decreased Village. The method used in this research is the collection of primary and secondary data as well as analyzing the data, namely hydrological analysis and hydraulics analysis for overcoming inundation and increasing water absorption. The results of the study showed that the planned flood discharge was around 1.2421 m3/s for 10 years. The time needed to absorb water in the Underdrain Box Storage for 44.44 minutes is 0.7997 m3/s, with an infiltration speed of 0.0375 m/s. Underdrain Box Storage dimensions are designs that have a shape above the dimensions of the storage box with a length (B1) of 0.6 m and a height (H1) of 0.3 m, for the dimensions of a storage box accomodation with a length (B2) of 0.8 m and a height (H2) 0.6 m.
HYDRODYNAMICS ANALYSIS OF JANUS SPHERE AT VARIATIONS OF THE REYNOLDS NUMBER James Julian; Waridho Iskandar; Fitri Wahyuni
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.315-324

Abstract

The hydrodynamics of the homogeneous and Janus spheres were compared computationally at various Reynolds number variations. The Janus sphere is divided into two parts: slippery, which is set as a free-slip wall, and sticky, which is arranged as a free-slip wall. The equation used is the RANS equation for laminar fluid flow. Research focuses more on hydrodynamic forces and visualization of fluid flow by using velocity contours and streamlines. The domains of computational processes are arranged in a rectangular shape. The Richardson Extrapolation method verifies the mesh and gives the result that the meh variation is within the convergence range. Mesh with 105 elements is used for further computation because it only gives the lowest error of 0.129%. Meanwhile, the validation results show that the computational process can follow the experimental results at 0°≤θ≤80°. The Janus sphere is hydrodynamically better than the homogeneous sphere, where the Cl produced is larger and the Cd produced is smaller. The Janus sphere can prevent separation at a Reynolds number of 20 and reduce the recirculation area at a Reynolds number of 50.
EFEKTIVITAS ADSORBEN ARANG AKTIF KULIT DURIAN (Durio Zibethinus) DAN WAKTU KONTAK TERHADAP PENURUNAN KONSENTRASI PEWARNA NAPHTOL LIMBAH CAIR BATIK Wike Maylani; Ismiyati Ismiyati; Yustinah Yustinah
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.247-256

Abstract

This study aims to analyze the characteristics of activated charcoal from durian shells and to determine the absorption capacity of activated charcoal from durian shells which acts as an adsorbent in reducing the concentration of naphtol dye in batik wastewater based on mass variations of activated charchoal (0,5%; 1%; 1,5%; 2%; dan 2,5%b/v) and variation of contact time (0, 25, 50, 75, and 100 in minutes). The characteristic results of activated charcoal from durian shells include a yield content 86,6%; moisture content of 9%; ash content of 13.3%; iodine absorption of 526.635 mg/g; the surface area using the methylene blue method is 456.24 m2/g and the SEM (Scanning Electron Microscope) test to determine the surface morphology of the activated charcoal. Based on the effect of the mass of activated charcoal from durian shells and contact time, the best results are obtained on a mass of 2,5%b/v of activated charchoal on durian shells and a contact time of t5 minutes to reduce the concentration of naphtol dye. In these parameters, the final concentration of naphtol dye from batik wastewater is obtained of 52,64 mg/l with a reduction percentage of naphtol dye of 79,52%.
ANALISA BEBAN PENDINGIN PRODUK PADA CONTACT PLATE FREEZER TERHADAP KINERJA KOMPRESOR DI PT. TRIMITRA MAKMUR, TARAKAN, KALIMANTAN UTARA Samsi Samsi; Ade Hermawan; Teguh Binardi; M. Ilham; Istianto Budhi Rahardja
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.207-216

Abstract

Contact plate freezer (CPF) is a refrigeration machine unit to freeze products that will certainly maintain product freshness. The cooling system is running smoothly, one thing that should be noted is the cooling load on the contact plate freezer. Cooling load is the amount of heat absorbed per unit of time. Refrigeration cycle at PT. Trimitra Makmur, using a combined refrigeration cycle (multi-stage cycle), using two vapor compression cycles using two single-stage compressors. The two compressors used have the same power of 55.92 kW. As for the main components of the refrigeration system at PT. Trimitra is prosperous, among others: Compressors, condensers, expansion valves, and evaporators. The cooling load on the contact plate freezer consists of product heat load, water heat load, internal heat load, and transmission heat load. In the contact plate freezer, the load of infiltration or heat from the outside air is not calculated because at the time of production the door of the contact plate freezer is closed tightly so the value of air exchange is very small and can be ignored. In this research, it was found that the average total load on contact plate freezer 1 was 23.07079 kW, so that the average total load on all three contact plate freezers at PT. Trimitra Makmur is 69.21237 kW. From the results of data collection and calculation, the COP value in the high-stage cycle is 4.33, so the power of the high-stage compressor used is 1/4.33 of the cooling capacity of the contact plate freezer. While in the booster cycle, a COP value of 6.49 is obtained, so the booster compressor power used is equal to 1/6.49 of the cooling capacity of the contact plate freezer.
PEMBANGKIT ENERGI LISTRIK MEMANFAATKAN PENYERAPAN PANAS JALAN BETON MENGGUNAKAN TEKNOLOGI TERMOELEKTRIK GENERATOR (TEG) DENGAN PELAT PENYERAP TEMBAGA BERBENTUK I Nurman Saputra; Rahmat Iman Mainil; Azridjal Aziz
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.325-336

Abstract

Heat energy is energy that can be easily found in our daily lives, starting from the heat provided by nature, namely from the sun's heat, heat from chemical reactions, and heat generated by mechanical friction. If this heat energy can be converted into electrical energy, of course it will be able to help meet the increasing energy needs. Thermoelectric generator is a technology that can convert heat energy into electrical energy based on the seebeck effect. This research was carried out by utilizing the absorption of solar radiation heat on a concrete road with class III cast concrete type with K 450 as a thermoelectric generator placed on a medium with dimensions (550 x 300 x 100) mm. The research used 3 modules of thermoelectric generator type SP 1848 arranged in series, a heat sink filled with water and a copper plate in the form of I as an absorbent plate and heat transfer from concrete to TEG. The results of the tests conducted show that the maximum power generated in the concrete produces a power of 14.88 mW with a maximum solar radiation intensity of 1107 W/m2 and the largest temperature difference is 6.7 °C. By looking at the power generated continuously, this research allows it to be developed as an alternative energy.
ANALISIS BEBAN KERJA FISIK OPERATOR PANEN KELAPA SAWIT MENGGUNAKAN METODE BIOMEKANIKA Khairunnisa Khairunnisa; Meri Andriani; Wiky Sabardi
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.257-266

Abstract

Palm Oil Mill PT. Perkebunan Nusantara I (PKS PTPN 1) Tanjung Seumentoh is a company that processes palm oil into Crude Palm Oil (CPO) with a production capacity of 45 tons of Fresh Fruit Bunches (FFB)/hour with a factory area of ±10 Ha. Harvesting of oil palm fruit is done manually using the Egrek tool. The purpose of this study was to identify the compressive force and lift index of oil palm harvesting operators. The research stages, there are three stages of research, namely the first stage, namely the survey of the research location, the second stage of collecting research data on the number of workers, age of workers, weight of equipment, and height of equipment used to harvest oil palm fruit, the third stage is data processing using the Biomechanics method with calculations the maximum. Permissible Limit (MPL) Recommended Weight Limit (RWL). The method used, Biomechanics is divided into two methods, namely Maximum Permissible Limit (MPL) and Recommended Weight Limit (RWL). Results and discussion, from the calculation of RWL on 8 operators obtained an average Horizontal Multiplier (HM) 0.89, Vertical Multiplier (VM) 62,41625, Distance Multiplier (DM) 1.01875, Asymmetric Multiplier (AM) 1. MPL calculation from 8 operators obtained an average average Wtotal 421.79, Abdominal Pressure (PA) 1.8, Muscle force 681.79, Wrist Moment 1.05, Sacral Moment 11.47375, Total Moment 35.06. In conclusion, the compressive force on 8 oil palm harvesting operators with an average Recommended Weight Limit (RWL) of 1173.3 N and an average value of Maximum Permissible Limit (MPL) of 715.8 N. Workload on 8 operators with an average value -average 0. The method used, Biomechanics is divided into two methods, namely Maximum Permissible Limit (MPL) and Recommended Weight Limit (RWL). Results and discussion, from the calculation of RWL on 8 operators obtained an average Horizontal Multiplier (HM) 0.89, Vertical Multiplier (VM) 62,41625, Distance Multiplier (DM) 1.01875, Asymmetric Multiplier (AM) 1. MPL calculation from 8 operators obtained an average average Wtotal 421.79, Abdominal Pressure (PA) 1.8, Muscle force 681.79, Wrist Moment 1.05, Sacral Moment 11.47375, Total Moment 35.06. In conclusion, the compressive force on 8 oil palm harvesting operators with an average Recommended Weight Limit (RWL) of 1173.3 N and an average value of Maximum Permissible Limit (MPL) of 715.8 N. Workload on 8 operators with an average value -average 0. The method used, Biomechanics is divided into two methods, namely Maximum Permissible Limit (MPL) and Recommended Weight Limit (RWL). Results and discussion, from the calculation of RWL on 8 operators obtained an average.
UTILIZATION OF TELEMETRY SYSTEMS IN QUAIL FARMING USING THE IOT CONCEPT Mohammad Daffa Ananda; Yuliarman Saragih; Ridwan Satrio Hadikusuma
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.217-224

Abstract

Poultry is one of the sectors that has grown significantly, especially in Indonesia, because poultry farms, especially quail, can provide crops in the form of nutritious meat and eggs. In the information obtained, quail meat production increased by 26.86%, and eggs decreased by 4.69%. In the literature study obtained, when raising poultry, sometimes they experience a condition called heat stress caused by the room's air temperature and humidity or cage exceeding the comfort zone limits on the quail's body. To overcome this, this research product was made by utilizing IoT technology. There needs to be more there. In this study, a telemetry system was also implemented to determine set point values to deal with extreme temperatures and humidity and provide set point values at mealtimes so that they were on time. The results of the discussion data when the research product was implemented obtained an average temperature and humidity of 29°C and 72.1%, then for the results of the value data without implementing the research product it was obtained with a temperature and humidity value of 32.5°C and 57.2%. The difference in temperature and humidity is 3.5 and 14.9, which is quite significant. It can be said that the implementation of research products into quail cages can minimize extreme temperatures in them. Apart from that, in this study, it was also advised to provide vitamins mixed into the quail drink at the appropriate dose so that the quails stay healthy during the specified period.
ANALISA KERUGIAN PEMBANGKIT AKIBAT KEBOCORAN AIR MELALUI GUIDE VANE : STUDI KASUS PADA PEMBANGKIT LISTRIK TENAGA AIR BAKARU Nur Hamzah; Muhammad Ruswandi Djalal; Muhammad Sulfajar Mas’ud
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.337-344

Abstract

To maintain the reliability of the plant so that it continues to operate optimally, therefore the company management has arranged several scheduled maintenance activities. The result of the delay in maintenance had an impact on some equipment so that it suffered fatal damage. One of the mechanical problems that occur in PLTA BAKARU is water leakage that occurs in the guide vane. At the PLTA Bakaru unit, the impact of this guide vane leak can cause the generator to trip with an indication of 133 QBL and require the unit to leave the concession for some time. Thus the result of the disturbance becomes a loss for the company because it cannot produce electricity. From the results of the analysis, it was found that the amount of water needed to generate 1 kwh in unit 1 of PLTA Bakaru was 0.000295 m3 / s, the amount of energy loss caused by leaks in the guide vane was 121,975,031 kWh in 2015; 41,933.26 kWh in 2016; 135,591.42 kWh in 2017; and 518,637.17 kWh in 2018, power losses also occurred in the use of pumps for handling leakages of 75 kW. the amount of water consumption continued to increase from 2015 to 2018 before the overhaull and after overhaul maintenance the SWC value decreased to 0.29365 at 63 MW unit load operations.
ANALISIS LAJU KOROSIF FLUIDA CAMPURAN REFINERY BLEACHING DEODORIZE PALM (RBDP) OLEIN DAN ETHYLENE GLYCOL (EG) PADA BAHAN METAL Istianto Budhi Rahardja; Azhar Basyir Rantawi; Hendra Saputra; Dian Oktavia Pambudi
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.267-274

Abstract

Corrosion to metal materials contaminated by liquid fluids is strictly avoided and maintained, which will result in damage and erosion of the material. Metal materials are very easy to corrosion when contaminated with fluids. The fluid mixture given is RBDP Olein from refined palm oil (CPO) and EG. The research method used was experimental, in which metal objects were immersed in the RBDP Olein & EG fluid mixture for a certain time (± 3 months), by weighing the mass before and after immersion in the fluid mixture. The results of the mass weighing test obtained that the reduction was not significant at all, namely: 0.01 gr (0.25%) for ± 3 months from the initial mass of the object with a corrosion rate value of 1.25605E-07 mm/y , as well as on the microstructure test of the object the workpiece has no defects, scale, or erosion that occurs on the workpiece, so that the workpiece does not a corrosive rate in the RBDP Olein & EG fluid.

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