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Journal of Science, Technology, and Visual Culture Published by Jurusan Teknologi Produksi dan Industri Institut Teknologi Sumatera Jl. Terusan Ryacudu, Way Huwi, Kec. Jati Agung, Kabupaten Lampung Selatan Lampung 35365
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INDONESIA
Journal of Sciencce Technology and Visual Culture
Published by Institut Teknologi Sumatera
ISSN : 28077997     EISSN : 27988767     DOI : -
Core Subject : Art, Engineering,
Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering
Journal of Science, Technology, and Visual Culture adalah sebuah jurnal yang bersifat Open Access sebagai media publikasi ilmiah bagi peneliti, dosen, mahasiswa, dan akademisi untuk menyampaikan buah pikiran dan hasil penelitiannya yang berkualitas pada bidang yang digeluti, antara lain: Renewable Energy, Energy Conversion and Conservation Electrical, Informatics, Telecommunications, and Biomedical Engineering Biology, Forestry, Agriculture, and Food Technology Chemical, Material, and Industrial Technology Architecture and Infrastructure Engineering Earth and Space Science and Engineering Marine Science and Engineering Visual and Communication Jurnal ini dikelola oleh Konsorsium TPAK Jurusan Teknologi Produksi dan Industri (JTPI) dan Jurusan Teknologi Infrastruktur dan Kewilayahan (JTIK) Institut Teknologi Sumatera dan terbit empat kali dalam setahun, yaitu Maret, Juli, Oktober, dan Desember.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 55 Documents
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The Utilization of Sago Frond Cellulose for Production of Prebiotic Hydrolyzate Through Enzymatic Hydrolysis Ilham Marvie; Titi Candra Sunarti
Journal of Science, Technology, and Visual Culture Vol 1 No 3 (2021): Desember 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Sago palm frond is the upper part of the sago palm trunk and is not utilized during sago harvesting. Sago palm frond contains low non-cellulose components; thus, it is the potential to be used as the production of cellulose hydrolysate. The result contains cello-oligosaccharides and cellobiose which can be utilized as a prebiotic that is beneficial to the human digestion system. The cellulolytic enzyme is used as a catalyst to produce intermediate hydrolysate. therefore, it requires a certain hydrolysis process. This research investigated the characteristics of sago palm frond and the extraction of its cellulose, and its application as a substrate for cellulose hydrolysis. The results showed that the upper half frond contains a higher crude fiber (35% wet basis) and cellulose components (37% wet basis) than the bottom one. Up to 72 hours the hydrolysis produced cello-oligosaccharides and cellobiose with a degree of polymerization of 7.9 and a dextrose equivalent of 12.6.
Analisis Data Hujan Untuk Pengelolaan Air Tambang : Analisis Data Curah Hujan Kejadian Kontinu M. Akbari Danasla; Ginting Jalu Kusuma; Edy Jamal Tuheteru; Rudy Sayoga Gautama
Journal of Science, Technology, and Visual Culture Vol 1 No 2 (2021): Oktober 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Masalah terkait dengan kuantitas air yang berlebihan terutama muncul dikarenakan analisis pengelolaan air di lokasi tambang yang belum dilakukan secara baik pada saat tahap perencanaan tambang. Pengelolaan air pada tambang terbuka terutama terkait hidrologi di area penambangan menyangkut 3 hal, yaitu (1) kebutuhan sarana penyaliran terbuka pada area penambangan, (2) kebutuhan pit sump untuk operasi di front penambangan dan (3) kecepatan pengisian pit lake pada saat pasca tambang. Dalam penelitian ini hanya difokuskan pada analisis curah hujan kejadian kontinu (continuous event) untuk kecepatan pengisian pit lake saat pasca tambang. Uji normalitas dan simulasi Monte Carlo dilakukan untuk memprediksi curah hujan yang digunakan dalam analisis kecepatan pengisian air pada pit lake saat pasca tambang. Berdasarkan simulasi Monte Carlo yang telah dilakukan diperoleh bahwa curah hujan terendah terjadi pada bulan September tahun 2018 sebesar 78,2 mm, sedangkan curah hujan tertinggi diprediksi akan terjadi pada bulan Desember tahun 2018 sebesar 268,3 mm. Sementara itu total akumulasi curah hujan yang terjadi selama periode 2015-2018 diprediksi mencapai 8093,8 mm.
A Quantitative Risk Analysis Due to Leakage of Ammonia Storage Tank at PUSRI IIB Factory Aldillah Herlambang
Journal of Science, Technology, and Visual Culture Vol 3 No 2 (2023): Juli 2023
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Ammonia products in industry are usually stored in a cold state which is maintainedat a temperature of -33 C in a liquid state (refrigerated storage tank). One of thechemical industry companies that produces ammonia and has been established in themid-20th century is PT Pupuk Sriwijaya Palembang. One method that can be used topredict the scenario of an ammonia tank leak is by quantitative risk analysis. Thepurpose of this study is to identify the effect of the leakage of the ammonia storage tankat the Pusri IIB factory, calculate the concentration of ammonia scattered per unitdistance and calculate the distance affected by thermal radiation and toxic gases fromthe source of the leak, and compare the calculation results (manual) with the simulationresults with the device. ALOHA software. The tool used in the ALOHA simulation is alaptop with the following specifications: Lenovo Thinkpad T440p, Intel® CoreTM i5-400M, 8 GB RAM, 64-bit OS. The effects of ammonia storage tank leaks or accidentsdue to tank leaks that may occur after the ALOHA simulation are pool fire, BLEVE,toxic vapor cloud, and flammable area of vapor cloud. In scenario 1 for the impact ofpool fire thermal radiation (>10 kW/m2), the resulting red zone is 36 m. Probit analysisof the impact of pool fire was also carried out, with probit 1st degree burns it couldallow 261 people to be exposed at a distance of 45 meters and 14-16 people at adistance of 75 meters. For the BLEVE impact, the resulting red zone is up to 1.2 kmwith probit analysis of 1st degree burns in the dry season scenario, the possibility ofpeople being exposed is 9,007 people at a distance of 1,000 meters and 3,126-4,002people at a distance of 2,000 meters. While the spread of toxic gas (toxic vapor cloud),the red zone (ERPG-3) produced is 269 m. The worst impact for the occurrence of apool fire can reach 58 meters from the source of emission or tank leakage, BLEVEreaches 2.7 km, toxic area reaches 2.3 km, and flammable area reaches 60 meters. Therecommendations given in this study are checking the instruments on the tank,installing a lightning rod on the tank, and risk analysis is needed to anticipate tankleaks and avoid making densely populated settlements within 2 km of the ammoniatank.
Pemanfaatan Biochar dalam Menurunkan Emisi Karbon di Hutan Industri Alfian Hayu Sudibya; Stevy Canny Louhenapessy; Yudha Gusti Wibowo
Journal of Science, Technology, and Visual Culture Vol 2 No 2 (2022): Juli 2022
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Indonesia memiliki hutan gambut tropis tebesar di dunia. Hutan menggunakan CO2 untuk fotosintesis. Hutan berperan penting dalam menyerap karbon dalam suatu daerah. Tingginya pemekaran pembangunan juga memicu terjadinya pembukaan lahan di hutan tropis. Salah satu metode yang paling sering digunakan dalam pembukaan lahan adalah dengan cara pembakaran. Emisi karbon di hutan haru dihindarkan salah satunya menggunakan biochar. Biochar merupakan material kaya karbon yang dihasilkan dari proses pirolisis sederhana pada suhu rendah (100-300 oC). Material biochar merupaka ikatan rantai karbon yang dibuat dari biomasa. Pemanfaatan biochar telah banyak dilaporkan dalam penetralisir air tercemar dan sebagai penyerap karbon. Berbagai hasil riset yang dilakukan telah menguatkan fakta bahwa biochar merupakan material yang paling stabil dalam mencegah pelapasan karbon ke atmosfer. Biochar juga dilaporkan mampu meningkatkan kualitas tanah, meningkatkan hasil panen pada industri pertanian dan mampu menjaga kestabilan tanah dengan memperbaiki nilai Dissolve Organic Carbon (DOC) tanah. Pemanfaatan biochar juga akan meningkatkan perekonomian masyarakat di sekitar area industri apabila pemerintah mendorong dan melakukan pelatihan agar masyarakat di wilayah industri dapat memproduksi biochar dan menjualkan kepada perusahaan.
Sampul Depan dan Daftar Isi Daftar Isi
Journal of Science, Technology, and Visual Culture Vol 1 No 1 (2021): Juli 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

ANALISIS RUGI-RUGI DAYA KABEL DC PADA PLTS 1MWP ON-GRID INSTITUT TEKNOLOGI SUMATERA BERDASARKAN DATA FUSION SOLAR Gde KM Atmajaya; Syamsyarief Baqaruzi; Bernardus Galih Dwi Wicaksono; Sabhan Kanatan; Ali Muhtar
Journal of Science, Technology, and Visual Culture Vol 2 No 1 (2022): Maret 2022
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

PLTS 1 MWp on-grid at the Sumatra Institute of Technology (ITERA) campus comprises solar modules, inverters, DC cables, and protection equipments assembled in a compact system. Each of these components has a role in transmitting the electrical energy generated by the solar module to the electrical load at ITERA. This paper will discuss the power losses generated by PLTS components, especially the DC distribution cables used. The simulation of PVSystV6.81 obtained 1.98% of the losses resulting from the distribution process on the DC cable. The simulation results were compared with the measurement results from the solar fusion software, which records the power components generated by PLTS ITERA such as voltage, current, power, etc. for each string connected to the inverter with a data collection duration of 5 minutes (12 hours per day 06.00 – 18.00). Based on data obtained from fusion solar in August and formula calculation, the lowest average percentage loss of energy from DC cables is 0.6542% on inverter 6, and the highest is 0.6718% on inverter 1. The difference losses of each inverter are caused by disturbances in the DC cable distribution line from the module to each inverter, such as short circuit current to ground.
Studi Karakteristik Pola Aliran Stratified pada Pipa Horizontal 16 mm Ilham Dwi Arirohman; Fajar Paundra; Putty Yunesti
Journal of Science, Technology, and Visual Culture Vol 1 No 1 (2021): Juli 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

The main objective of this research is to find information about the characteristics of air-water stratified flow in a small horizontal pipe. Experimentally, the characteristics of horizontal co-current stratified flow in 16 mm diameter and 10 m long acrylic pipe were investigated by using conductance method and visual method. The study parameter in the form of liquid film thickness measured using a developed parallel wire sensor is supported by visual data taken using a high speed video camera in the fully developed area (180-210D). In order to obtain observations covering all stratified flow subpatterns, a variation of the superficial velocity of water (JL) from 0.01 – 0.1 m/s and the superficial velocity of air (JG) from 4 – 20 m/s were chosen. The observed flow sub-patterns are then mapped in a flow sub-pattern map based on variations in the superficial velocity of air and water, adding the database from previous studies. In addition, it is also known that the average liquid film thickness decreases as JG increases but it increases as JL increases, while the interfacial wave velocity increases with increasing JG and JL.
Analisis Kemampugalian dan Kemampugaruan Material Pit B Tambang Emas Kabupaten Aceh Tengah Alio jasipto; Simon Heru Prassetyo; Muhammad Zaini Arief; Damar Kusumanto; Ali Rahman; Nursetyo C
Journal of Science, Technology, and Visual Culture Vol 1 No 3 (2021): Desember 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Pemberaian massa batuan untuk keperluan penambangan dapat dilakukan dengan metode penggalian mekanis maupun peledakan. Untuk menentukan metode yang paling sesuai, analisis kemampugalian dan kemampugaruan dapat dilakukan terhadap material yang akan diberaikan tersebut. Studi ini menggunakan kriteria Franklin (1971) dan kriteria Pettifer dan Fookes (1994) untuk menentukan metode pemberaian massa batuan pit B pada sebuah tambang emas yang berada di Kabupaten Aceh Tengah. Kedua kriteria ini membutuhkan nilai Point Load Index (PLI) dan fracture spacing dari massa batuan yang dianalisis. Berdasarkan hasil analisis kemampugalian dan kemampugaruan dengan menggunakan kedua kriteria tersebut, pemberaian massa batuan pada Pit B masuk pada kriteria easy digging, hard digging, hard ripping dan blast to losen.
Kajian Estetika Fotografi Karya Anton Ismael Candra Prayogi
Journal of Science, Technology, and Visual Culture Vol 3 No 2 (2023): Juli 2023
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

This research on photography focuses its study on photography by Anton Ismael which is compiled in the book Rumah Sesar, Sesat Dirumah, with the aims: (1) to describe the types of Anton Ismael's photography (2) to describe the aesthetic value in Anton Ismael's photographic work. This research is a qualitative descriptive study. Data collection techniques used are documentation, literature and triangulation techniques. The results showed that: (1) Anton Ismael's types of photography are: human life photography, art photography, mixed media photography and storytelling photography and (2) Anton Ismael's photography aesthetic values ​​are: visual elements (design elements) consisting of: six elements, namely: line, shape, texture, color, intensity/chroma, space and time; The basics of preparation (design principles) consist of four elements, namely, harmony blend, contrast blend, rhythm blend, and gradation blend; and the law of arrangement (design principle) consists of four elements, namely, the principle of unity, balance, simplicity (simplicity), accentuation (emphasis), and proportion.
Strategi Perancangan Area Persawahan Sebagai Kawasan Ekowisata dengan analisis SWOT di Kecamatan Gading Rejo Kabupaten Pringsewu Ferdiansyah Ferdiansyah
Journal of Science, Technology, and Visual Culture Vol 1 No 2 (2021): Oktober 2021
Publisher : Jurusan Teknologi Produksi dan Industri, Institut Teknologi Sumatera

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Abstract

Pariwisata dapat memajukan perekonomian, menyejahterakan dan meningkatkan kualitas hidup masyarakat, melestarikan lingkungan, dengan dampak negatif yang minimal. Sawah yang semakin berkurang akibat alih fungsi lahan, menyadarkan kita akan pentingnya melestarikan dengan tetap menyejahterakan masyarakat dengan ekowisata. Penelitian ini merupakan penelitian deskriptif dengan pendekatan kualitatif dan menggunakan analisis SWOT untuk merumuskan strategi perancangan ekowisata sawah yang mengambil lokus di area persawahan dan irigasi di Kecamatan Gading Rejo, Pringsewu. Tujuan penelitian ini adalah untuk mengetahui merumuskan strategi perancangan kawasan yang berada di irigasi sawah di Gading Rejo sebagai ekowisata. Hasil Penelitian ini berupa strategi dan arahan desain yang dapat dilakukan untuk perancangan kawasan ekowisata tersebut.

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