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Specta Journal of Technology
Published by Institut Teknologi Kalimantan
ISSN : 25492713     EISSN : 26229099     DOI : https://doi.org/10.0610/specta.v2i3
Core Subject : Science, Social, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Environmental Science
SPECTA journal is published by Lembaga Penelitian dan Pengabdian kepada Masyarakat, Institut Teknologi Kalimantan, Balikpapann Indonesia. SPECTA is an open-access peer reviewed journal that mediates the dissemination of academicians, researchers, and practitioners in the field of Physics, Mathematics, Mechanical Engineering, Electrical Engineering, Chemical Engineering, Materials and Metallurgy, Civil Engineering, Industrial Engineering, Naval Engineering, Urban Planning, Informatics, Information System, Environmental Engineering, and Ocean Engineering. SPECTA accepts submission from all over the world, especially from Indonesia.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 325 Documents
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Identifikasi Jenis, Pemetaan, dan Penanganan Limbah Bahan Berbahaya dan Beracun Pada PT Kaltim Parna Industri Novia Setyawati; Febrianti, Nia
SPECTA Journal of Technology Vol. 8 No. 1 (2024): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT Kaltim Parna Industri is a business entity engaged in the petrochemical industry which has the potential to produce hazardous and toxic waste (B3). This study aims to determine the type, mapping, and handling of hazardous and toxic waste (B3). The research method is by conducting a literature study and collecting existing data in the form of documents from companies and documentation. Based on the results of identification of the types, mapping, and handling of hazardous and toxic waste at PT Kaltim Parna Industri, it can be concluded that there are types of B3 waste generated from specific sources, and non-specific sources belonging to category 1 and category 2. The waste generated comes from activities in the process and utility areas. The handling that has been carried out when there is a potential for liquid B3 waste spills is by providing spill kits in the form of universal spill kits and chemical spill kits. Meanwhile, solid B3 waste can be disposed of in a special B3 waste bin that has been provided in the factory field area or directly to the B3 waste TPS.
Perancangan Kebijakan Sistem Ketenagalistrikan Kawasan Institut Teknologi Kalimantan Aprillia, Happy; djafar, alfian; Filiana, Firilia
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.633

Abstract

The Kalimantan Institute of Technology (ITK) already has 17 study programs and 3002 active students until 2021 and is projected to have 20 study programs by 2025. However, geographical location of ITK affect ITK facilities readiness that later supporting tridharma activities to be carried out perfectly. The Mechanical, Electrical and Plumbing System (MEP) at the ITK Campus needs to be designed with a sustainable design in order to accommodate the needs of electricity, sound, air conditioning, clean water, and dirty water on the ITK Campus until 2025. This study aims to design a sustainable MEP design for distribution of electricity especially in lightning protection in order to meet the characteristics of safe, reliable and appropriate design. The stages involved include 8 (eight) processes, namely: 1) data collection and design of the existing MEP, 2) projecting the growth of the academic community and equipment needs until 2025, 3) reviewing the existing MEP system as the existing protection system, 4) calculation of the suitability of the existing MEP system based on projected needs, SNI and SPLN, 5) planning for improvement of existing systems and plans for developing MEP systems, 6) making working drawings of the MEP system, 7) drafting Bill of Quantity MEP, and 8) MEP budgeting. This research is expected to produce output in the form of MEP planning drawings that are recommendation of detailed engineering design which are documented in strategic policies through the rector's regulation. This research is aimed to be used as a reference for MEP design for ITK development in the future development.
Analisa Performansi menggunakan Metode Power Link Budget pada Jaringan FTTH Perumahan Balikpapan Regency Cluster Castaric Riswanto, Ifandi Rahmad; Ditrinov, Mohammad Iqbal; Utami, Amalia Rizqi
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.664

Abstract

According to research conducted by Telkom, Telkom has experienced the addition of Indihome users up to 1.01 million users. So the total number of Indihome subscribers reached 8.02 million. The increasing demand for Indihome subscriptions and also the farther the customer's location will be to reach, the longer the Fiber Optic cable used, it is necessary to do a network analysis in that area in order to determine the performance of the fiber optic network to the customer's residence. Furthermore, it is necessary to do a network analysis in that area in order to know the performance of the fiber optic network to the customer's residence. The analysis was carried out after processing the data using the method. The calculation method used is the power link budget. The power link budget determines the distance and number of connections that affect the attenuation of the indihome fiber optic network in the Balikpapan Regency Cluster Castarica Housing Complex. And the conclusion obtained is that the FTTH network in Balikpapan Regency Cluster Castarica can be categorized as feasible for the maximum total attenuation on the network of 27.92009 dB and the customer's farthest distance from OLT/STO is 7.0574 Km which is in accordance with the standard set by ITU-T G.984 as well as the regulations set by PT. Telkom
Sistem Informasi Pengolahan Transaksi Bank Sampah: Sistem Informasi Pengolahan Transaksi Bank Sampah -, Agustiena Merdekawati; Dhiana, Azis Sukma
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.798

Abstract

Waste bank is a solution in waste management in Indonesia. The existence of this waste bank program can change people's minds to be more concerned about useless waste and goods that have value and price. Through the waste bank program, people can store waste and the waste can be exchanged for money that can be saved. However, in the management of the waste bank there are several problems, such as the community does not know information about becoming a customer or how to open a waste bank account, people who are already customers do not know the amount of their waste bank savings, because the system uses bookkeeping, customers do not know what type of waste price is set by the waste bank, and the waste bank manager still uses books for recording, can cause data loss, delays in processing data, so it is inefficient. Therefore we need a system to overcome this problem, namely by creating a waste bank processing information system. This system uses the waterfall model as a software development model and uses blackbox testing for testing.
Pengaruh Treatment Aerasi dan Ukuran Bijih terhadap Persen Ekstraksi Emas dengan Metode Agitation Leach Test Arief, Arief Rakhman Hakim; Wahyuningsih, Tri; Ravi'i; Yanas, Yogi Gautama; Usman, Fahrul Rozzi
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.825

Abstract

Generally, gold processing in the world is carried out through a leaching process to extract its gold content. One of the techniques commonly used in melindi gold ore, especially those with low grades, is the heap leaching method. One of the companies that manages gold with this technique is PT J Resources Bolaang Mongondow. In the heap leaching process at PT J Resources Bolaang Mongondow, there are several parameters that determine the final result of this process, including the concentration of dissolved oxygen and the size of the ore. This study aims to see the effect of aeration and ore size on percent gold extraction through the principle of leaching with the agitation leach test. This study used gold oxide ores with sizes of +6 and -6 mm. The two measures were each subjected to aeration and non-aeration treatment in the leaching process for 48 hours. From the results of experiments that have been carried out, it was found that the highest percent of extraction was produced at a size of +6 mm with a non-aeration treatment of 90%. While at a size of -6 mm, the highest percentage of extraction was obtained in aeration treatment of 84%. After data analysis, it was found that these results are highly dependent on oxygen levels and base metal content in the leaching process.
The Impact of Increasing Sigma Value on the Performance of the Weapon Production Line at PT. X Fatmawati, Fatmawati; Sudiarso, Aries; Juprianto; Nugroh, Vicky Aditiyo; Ardhana, Andini Aprilia; Gultom, Rudy AG
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.907

Abstract

PT X is one of the companies that produces the Main Armament System (Alutsista) used by the Indonesian National Army. In an effort to meet the production needs of Assault rifle weapons, PT. X must meet the quality standards set by the Ministry of Defense to support the operational tasks of the Indonesian National Army. This study aims to improve the performance of the weapon production line by measuring and evaluating the amount of sigma value in long-barreled weapons. The method used in this research is DMAIC (Define, Measure, Analyze, Improve, and Control), which is a structured approach to quality improvement. This method is used to address problems that occur on the weapon production line and analyze improvements that can be made to improve production performance. The steps recommended in this study include using the Critical to Quality method to identify the causes of problems that occur in weapon production. Furthermore, the Cause and Effect method is used to rank the most significant causes of problems based on the scores obtained. The 5W+1H method is also used to formulate appropriate improvement proposals based on the ranking results from the Cause and Effect Matrix. Thus, it is expected that an effective improvement proposal can be found to improve the performance of PT. X weapon production line.
Thin Metal Foils Effect of Quench Temper and Annealing to The Mechanical Properties and Microstructure of Stainless Steel for Electronic and Biomedical Application: Quench Tempering and Annealing in Thin Metal Foils Aziz, Abdul
SPECTA Journal of Technology Vol. 8 No. 1 (2024): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v8i1.931

Abstract

The change of mechanical properties and microstructure occur in austenitic stainless steel thin metal foil SUS 316. The occurence studied after quench tempering treatment at 900oC to the Stainless Steel thin metal foils and holded for 1 hour, 2 hour and 3 hours. The experiment subjected to the stainless steel thin metal foils with fine grains and coarse grains. Based on SEM-EBSD investigation, No. martenstic phase transformation (MPT) occur in the microstructure of SUS 316 thin metal foils. The change of microstructure indicated by the change of grain misorientation (GMO) in the grain of SUS 316 thin metal foils. The hardness increase according to the increasing the holding time. The increase of the hardness in SUS 316 thin metal foils have dependency with the surface roughening behavior in thin metal foils. The surface roughening has great effect to the formability of thin metal foils SUS 316. The other findings are the surface surface roughening decrease with the increase of the hardness of SUS 316 thin metal foils. In other words, the surface roughening decrease according to the increase of the holding times. Key Words : Microstructure; Grain Misorientation (GMO); Fine Grains, SEM-EBSD; Coarse Grains
Pengaruh Tingkat Kekristalan Material Grafena Oksida Tereduksi Terhadap Nilai Kuat Tekan Beton Normal nuraini, umi; Rahayu Pradita; Qurrotus Shofiyah; Mohammad Dani Al Qori; dedi
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.947

Abstract

Reduced graphene oxide (rGO) phase from coconut shell charcoal through heating using either a furnace or an artificial burner has been successfully formed. Heating was carried out through 2 temperature variations, namely 500 and 1000ᵒC, with a holding time of 5 hours. Heating through an artificial burner is carried out using used fuel oil equipped with a thermostat to measure the temperature. Phase identification was carried out using Xrays Diffraction Spectroscopy (XRD) testing with an angle of 2θ, namely 15-50ᵒ. The diffraction pattern shows that all samples have rGO phases with different intensity values. The higher the temperature, the greater the intensity value compared to the other samples. This intensity value indicates an increase in the sample's crystallinity due to an increase in temperature.
A Rancang Bangun Sistem Pengendalian Kualitas Pada PT. X Balikpapan : Rancang Bangun Sistem Pengendalian Kualitas Pada PT. X Balikpapan Pratama, Rizky; Muqimuddin; Purba, Arini Anestesia; Putra, Rulliannor Syah
SPECTA Journal of Technology Vol. 8 No. 1 (2024): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v8i1.958

Abstract

X Balikpapan is a business engaged in furniture production. Based on product defect data in 2022. It is known that there is an average gap between the percentage of the number of product defects which is 13.8% and the product defect standard that has been set on the sofa at 10%. The purpose of this study is to determine the causes of failure that must be handled and proposed countermeasures based on the expert system-based FMEA method. The methods used are FMEA and Expert System that connected to Artificial Intellegence Program. The FMEA method is a database in identifying and analyzing failures that produce a Risk Priority Number (RPN) value. The expert system method as a computer system algorithm to imitate the capabilities transferred from an expert expert to a computer to be stored in memory so that it can consult with the computer. The results of this study are in the form of an expert system website design based on the FMEA method with a percentage of data accuracy of 86.66% from 30 system testing data based on environmental conditions on the type of process failure that has occurred in sofa production which results in the type of failure that must be handled, namely in the assembly production process and the type of process failure, namely plywood or broken wood with the highest RPN value of 216 along with recommendations for efforts The countermeasures, is that before the sofa product is sent to the customer, do a final inspection of the plywood and wood used by means of a sofa durability test with a predetermined maximum load. Make sure there are no weaknesses or damage that can cause rupture of plywood and wood.
Perencanaan Kapasitas dan Waktu Produksi Tahu di Rumah Produksi Bapak Rahim, Sentra Industri Kecil Somber Balikpapan Aditya Permana; Endrawati, Budiani Fitria; Pratikno, Faishal Arham
SPECTA Journal of Technology Vol. 7 No. 3 (2023): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/specta.v7i3.1005

Abstract

The Somber Small Industry Center's Regional Technical Implementation Unit (UPTD) is one of Balikpapan's tofu and tempeh industrial sectors. Based on observations performed throughout the implementation of tofu production at Mr. Rahim's production house, it is known that the production capacity of tofu varies every month due to the shortage of a tofu production plan, resulting in Mr. Rahim's production house losing 816 kg worth Rp. 20.400.000 in 2022. The purpose of this study was to plan and offer recommendations for tofu manufacturing capacity and time that are suitable for Mr. Rahim's production house. Forecasting moving averages, weight moving averages, exponential smoothing, and linear trend line models are applied in the tofu production planning approach. The research results in capacity planning and production time of tofu using the forecasting method of moving average over 3 periods and 6 periods, respectively, 6081 kg/month and 6025 kg/month; weight moving average over 3 periods and 2 periods, respectively, 5792 kg/month and 5504 kg/month; exponential smoothing method with alpha 0.80, 0.90, and 0.95, respectively, 5258 kg/month, 5080 kg/month, and 4990 kg/month; and the linear trend line model method of 6317 kg/month. The conclusion of this study using the best feasible forecasting method is the weight moving average with two weighting periods, with a total required capacity of tofu production time of 1671.0144 hours/year and a total capacity of available tofu production time of 1874.6112 hours/year due to the difference in actual demand with a forecast of 732 kg, which does not exceed the value of lost sales in 2022.

Page 27 of 33 | Total Record : 325

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