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Rizki Fadhillah Lubis
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SAINTI: Majalah Ilmiah Teknologi Industri
Published by Politeknik ATI Padang
ISSN : 18297404     EISSN : 26139871     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Engineering Industrial & Manufacturing Engineering
SAINTI: Majalah Ilmiah Teknologi Industri merupakan majalah ilmiah yang diterbitkan oleh unit penelitian dan pengabdian masyarakat Politeknik ATI Padang. Jurnal SAINTI terbit secara berkala yakni persemesteran atau 2 kali dalam 1 tahun yaitu pada bulan Juni dan Desember. Jurnal SAINTI mempublikasikan hasil karya ilmiah dan pemikiran Dosen dan Civitas Akademika serta praktisi industri
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 122 Documents
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PENENTUAN KADAR AIR, KADAR ABU, ZAT TERBANG DAN FIXED CARBON DALAM BATUBARA PT. TAMBANG BATUBARA BUKIT ASAM (PERSERO) TBK, TANJUNG ENIM Renny Futeri; Gustiarini Rika Putri
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 15, No 1 (2018): VOL 15 NO 1 JUNI 2018
Publisher : Politeknik ATI Padang

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Abstract

Coal is one of the fossil fuels which in general are sedimentary rocks that can be burned, formed from organic deposits, mainly are plant remnants and are formed through coalification processes. Coal has each characteristic that is different from each other depending on the level of the coal itself. The quality of coal is the nature of the physical and chemical properties of coal which affect its potential usefulness. Parameters used to determine coal quality include calculating water content, ash content, levels of flying and fixed carbon substances. From the test results of coal samples carried out the value of the water content can range from 6.26-12.42 %: ash content values obtained 3.06-7.87 %; the value of the flying substances obtained 36.94-44, 23% and the fixed carbon values obtained ranged from 41.96 to 48.86% with a standard water content of 1.29-21.66 %, ash content of 2.93-16.73 %; flying substance levels of 22.38-46.42 % and fixed carbon 37.8-98% . From the analysis data, it can be concluded that the water content, ash content, and flying substances contained in the sample have met the standards of the ASTM (American Society for Testing and Materials) used by PT. Coal Mine Bukit Asam (Persero) Tbk, Tanjung Enim.
Density Effect of Calcium Carbonate Solution on Kernel Losses in Clay Bath Unit at PT Bina Pratama Sakato Jaya Addin Akbar; Khairul Akli; Dwi Kemala Putri; Melysa Putri; Syarie Hidayah
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 19, No 2 (2022): VOL 19 NO 2 DESEMBER 2022
Publisher : Politeknik ATI Padang

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Abstract

Clay Bath is a tool to separate palm shells from Kernels using a calcium carbonate solution. Kernel Losses in the Clay Bath unit are a problem that can be detrimental to CPO Processing Industry. The effect of the density of the calcium carbonate solution can reduce the Kernel Losses. In this study, variations in the density of calcium carbonate solution were made starting from 1.092; 1,112 ; 1.136 ; 1.142 ; 1.150 g/mL. Based on the results of the study, the lowest Kernel Losses were found at a density of 1.150 g/mL with 2.57%.
PENGARUH REAKSI HIDROGENASI PADA REFINED KERNEL STEARIN (RKS) Merry Asria; Resi Wulandari
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 16, No 2 (2019): VOL 16 NO 2 DESEMBER 2019
Publisher : Politeknik ATI Padang

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Abstract

Hydrogenation reaction in oil is the process of eliminating double bonds in oil by reacting H2 gas with oil, so that unsaturated oil turns into more stable saturated oil. The hydrogenation process in Refined Kernel Stearin (RKS) will produce Hydrogenated Kernel Stearin (HKS). Tested the composition of fatty acids, iodine numbers, melting points and solid fat content in RKS and HKS to see the effect of the hydrogenation reaction on RKS. The results showed a reduced double bond, resulting in a decrease in iodine number and an increase in melting point.
PENENTUAN RASIO MOL REAKTAN OPTIMAL PADA PEMBUATAN SURFAKTAN DIETANOLAMIDA DENGAN KATALIS NATRIUM HIDROKSIDA (NaOH) Pevi Riani
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 15, No 2 (2018): VOL 15 NO 2 DESEMBER 2018
Publisher : Politeknik ATI Padang

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Abstract

Surfactant is a molecule which also has a hydrophilic group and a lipophilic group so that it can unite a mixture consisting of water and oil. Diethanolamide is a nonionic surfactant that is widely used in the manufacture of various cleaning, care and cosmetics products. This surfactant is renewable and easily degraded so it does not pollute the environment. In this study, we will observe the effect of the mole ratio the reactants on the synthesis of dietanolamide surfactants from dietanolamine and methyl ester of fatty acids of palm distillate (ALSD) with sodium hydroxide (NaOH) catalyst. This study aims to determine the value of Hydrophylic Lipophylic Balance (HLB), saponification number, acid number, ester number of surfactant by observing the influence of mole ratio of reactants. This research was conducted using hot plate Carousel at a temperature of 80°C, reaction time of 4 hours, the ratio of moles of reactants, among others (1: 1, 1: 2, 2: 1, 2: 2, 3: 1, 3: 2), stirring speed 300 rpm and catalyst concentration 1% (b/b). In the oxidation reaction the sample is taken after hours then the results are washed with n-hexane then purified by heating the surfactant product at a temperature of 90°C to vaporize the hexane solvent. The results containing surfactants were analyzed by Hydrophylic Lipophylic Balance Method and FT-IR Spectrophotometer. Based on this study, optimal conditions were obtained at 80°C, 4 hours reaction time and 3: 2 mole ratio reactants. From the results of analysis of dietanolamide surfactant obtained HLB value is 5.81 which is in the range of HLB emulsifier water in oil according to the standard.
IDENTIFIKASI DAN PENENTUAN KADAR SENYAWA KURKUMIN PADA RIMPANG KUNYIT Elizarni Elizarni; Willy Febri Yanti
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 16, No 2 (2019): VOL 16 NO 2 DESEMBER 2019
Publisher : Politeknik ATI Padang

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Abstract

Turmeric is one type of medicinal plant that has many benefits and is found in many parts of Indonesia. The part that is often used as medicine is the rhizome. Turmeric rhizome is used for anticoagulants, antiedemics, decreased blood pressure, stomach ache and malaria medicine. The main chemical component in turmeric is curcuminoid. Curcuminoid consists of 3 fractions, namely curcumin, demetoksikurkumin, bis-demetoksikurkumin. The main fraction that exists in curcuminoids is curcumin. In this study an assessment and determination of levels of curcumin composition in the turmeric rhizome was carried out. Curcumin compound identification was carried out by TLC method using the chloroform: methanol (95: 5) mobile phase and silica gel stationary phase. The results obtained are 3 spots from standard bottling and samples with Rf values of the sample answer the standard Rf. Meanwhile, to determine the levels of curcumin compounds, the Uv-Vis spectrophotometric method was used. Measuring absorbance at a wavelength of 425.0 nm. And the results obtained levels of 6.71 % were collected. The results obtained are in accordance with the standards set by Pharmacopoeia Indonesia, which is not suitable from 6.60 %.
MALEAT ANHIDRIDA SEBAGAI PENGGRAFTING POLIPROPILENA DENGAN INISIATOR BENZOIL PEROKSIDA Tengku Rachmi Hidayani
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 12, No 2 (2015): VOL 12 NOMOR 2 DESEMBER 2015
Publisher : Politeknik ATI Padang

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Abstract

Telah dilakukan penelitian tentang pengaruh konsentrasi maleat anhidrida (MA) terhadap derajat grafting maleat anhidrida pada polipropilena (PP) dengan inisiator benzoil peroksida (BPO). Reaksi grafting dilakukan dengan teknik pengolahan reaktif dalam internal mixer pada suhu 165oC dengan variasi komposisi (b/b) PP : MA : BPO, 97:1:2, 95:3:2, 92:6:2, 89:9:2, dan 86:12:2 . selanjutnya dilakukan penentuan derajat grafting dengan metode titrasi dan analisa spectra FTIR untuk menentukan adanya grafting maleat anhidrida pada rantai polipropilena. Hasil penelitian menunjukan bahwa proses grafting maleat anhidrida pada polipropilena dapat terjadi dan perbandingan berat campuran PP:MA:BPO (95:3:2) merupakan derajat grafting tertinggi maleat anhidrida. Kata kunci : Ikat Silang, Grafting Polipropilena, Maleat anhidrida
PEMBUATAN KERTAS INDIKATOR ASAM-BASA DARI KULIT BUAH PISANG DAN NAGA Elda Pelita; Imran Nazar
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 15, No 2 (2018): VOL 15 NO 2 DESEMBER 2018
Publisher : Politeknik ATI Padang

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Abstract

This research about “Acid-Base Indicator Manufacturing from Banana’s and Dragon fruit’s Peel” had done. The research aims to make acid-base indicator from banana’s and dragon fruit’s peel in paper state as chemistry’s learning media. This research was conducted in Polytechnic ATI Padang with banana’s and dragon fruit’s peel as the sample. Descriptive with qualitative approaching was the style of this research. It had two phases which was manufacturing and testing of paper indicator. Data was collected by acid-base indicator from fruit’s peel’s paper test observation. Data analysis in 30 days showed acid-base indicator from banana’s and dragon fruit’s peel’s paper could expressed a different colour in acid, base, and neutral solution. These researches have conclusion that acid-base indicator from banana’s and dragon fruit’s peel’s paper in 30 days interval could be used as acid-base indicator and learning media.
ANALISIS PERBANDINGAN BIAYA PETI KEMAS DENGAN METODE PREVENTIF MAINTENANCE DAN REPAIR POLICY PADA PT SAMUDERA LOGISTIK Radna Ningsih; Ativa Rahmadani
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 16, No 2 (2019): VOL 16 NO 2 DESEMBER 2019
Publisher : Politeknik ATI Padang

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Abstract

Lack of maintenance costs for containers and inefficiency of container maintenance schedules, resulting in increased maintenance costs so as not to optimize the company's revenue. The purpose of this study is to determine the cost of container maintenance to be more efficient and effective based on preventive maintenance and repair policy. Data collection was obtained from interviews and primary data collection. Data analysis uses preventive maintenance and repair policy methods. The results showed that the most optimal treatment using preventive maintenance and repair policy methods in the crates was Rp. 75,648,918 and Rp. 73,537,274 for preventive maintenance, while for the repair policy, Rp. 226,390,336 of the results of preventive and repair costs. policy that has been processed. The maintenance schedule for containers is done in the 6th and 12th months by using preventive maintenance and repair policy methods for container maintenance costs to be lower.
ANALISIS FAKTOR KEGAGALAN CORAN ALUMINIUM DI CV. NJL PADANG Haswan Haswan
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 12, No 2 (2015): VOL 12 NOMOR 2 DESEMBER 2015
Publisher : Politeknik ATI Padang

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Abstract

CV. NJL Padang adalah industri kecil yang menghasilkan coran berbasis aluminium. Karena keterbatasan peralatan, produksi sangat tergantung pada sejumlah aspek proses produksi. Penelitian ini bertujuan untuk menganalisis aspek-aspek yang mempengaruhi kejadian cacat pada coran aluminium dan mengusulkan rekomendasi untuk perbaikan proses menggunakan alat pengendalian kualitas. Hasilnya, jenis cacat yang ditemukan dalam produk coran aluminium, yakni 1) cacat pergeseran; 2) cacat misrun; 3) cacat lubang gas; 4) cacat porositas serta 5) cacat dirt. Persentase dan kontribusi terhadap cacat masing-masingnya adalah Cacat pergeseran (0,78%-22,22%), cacat misrun (0,29%-8,33%), cacat Lubang gas (),75%-20,83%), cacat porositas (0,89%-25%) serta cacat dirt (0,19%-5,55%). Terjadinya cacat dominan yakni porositas disebabkan oleh faktor ketidakmurnian material bahan coran, suhu coran yang tidak memadai, kondisi spiral bahan bakar tidak bekerja optimal serta kejenuhan pekerja/operator yang mengakibatkan kelalaian dalam mengontrol proses. Rekomendasi yang diberikan adalah perlunya menggunakan bahan fluksi yang tepat dan memadai pada proses peleburan, perbaikan spiral bahan bakar dan perbaikan rancangan cetakan, penggunaan thermokopel dan pembuatan standar kerja yang jelas serta pentingnya dilakukan rotasi kerja terhadap operator. Kata kunci : pengendalian kualitas, cacat, coran aluminium.
PERANCANGAN SISTEM PENGAMBILAN DAN PENGUNGGAH DATA GAMBAR PADA E-NOSE MEMPERGUNAKAN RASPBERRY PI Pharmayeni Pharmayeni; Zulhamidi Zulhamidi; Isra Mouludi
JURNAL ILMIAH TEKNOLOGI INDSUTRI (SAINTI) Vol 15, No 2 (2018): VOL 15 NO 2 DESEMBER 2018
Publisher : Politeknik ATI Padang

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Abstract

The more sophisticated of the electronic equipment, so the for us to provide information to the public, in this case to provide any information including information about alcohol content in drinks to the public fast dan directly, we can use the internet and a website which can provide information in the form of text,picture, audio or video. In this research we will use the MQ-3 alcohol sensor, the camera and Raspberry pi which the whole system is a live stream means that no data is edited, any data readable by sensor then the data that is directly uploaded to the webserver. The method in this design is used two Raspberry pi3 which one function as client and the other as server, on client side paired a Raspberry camera (picamera), data acquisition AD / DA, and MQ-3 sensor while on server side there apache, mysql with client-server communication system and using python programming language and socket programing. The results of the design show that the MQ-3 and picamera sensors are running well and data can be sent from client to server.

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