Article Per Year (5 Year)
p-Index From 2020 - 2025
6.526
P-Index
This Author published in this journals
All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Lontar Komputer: Jurnal Ilmiah Teknologi Informasi International Journal of Renewable Energy Development Mechatronics, Electrical Power, and Vehicular Technology Jurnal Teknik ITS IPTEK The Journal of Engineering IPTEK The Journal for Technology and Science TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics Bulletin of Electrical Engineering and Informatics Eksergi: Chemical Engineering Journal Seminar Nasional Teknik Kimia Kejuangan Seminar Nasional Informatika (SEMNASIF) Dinar: Jurnal Ekonomi dan Keuangan Islam Jurnal Ilmiah Teknik Industri Bulletin of Electrical Engineering and Informatics Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Jurnal Biodjati Jurnal Desain Interior PEDAGOGIA Indonesian Journal of Chemistry Jurnal Purifikasi JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) SANITAS: Jurnal Teknologi dan Seni Kesehatan Jurnal Eduscience (JES) ASEAN Journal of Chemical Engineering Indonesian Journal of Electrical Engineering and Computer Science Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Journal of Electrical Vocational Education and Technology JAREE (Journal on Advanced Research in Electrical Engineering) Jurnal Teknik Kimia Indonesia Jurnal Nasional Teknik Elektro dan Teknologi Informasi Journal of Educational Sciences Sewagati Jurnal Ilmu Pendidikan dan Pembelajaran Jurnal INFOTEL
Adi Soeprijanto
Department Of Chemical Engineering, Institut Teknologi Sepuluh Nopember
Religion Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

Published : 100 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 100 Documents
Search

 4   5   6   7   8 
CHAOTIC OSCILLATIONOFA THREE-BUS POWER SYSTEM MODEL USING ELMANNEURAL NETWORK I Made Ginarsa; Adi Soeprijanto; Mauridhi Hery Purnomo
Lontar Komputer : Jurnal Ilmiah Teknologi Informasi Vol. 4, No. 2 Agustus 2013
Publisher : Institute for Research and Community Services, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.365 KB)

Abstract

Paper ini meneliti dan membahas secara mendalam mengenai osilasi chaotic pada sistem tenaga listrik.Dengan menggunakan sebuah three-bus pada sistem tenaga listrik, rute mungkin menyebabkan unjuk kerja chaotic sehingga dievaluasi, digambarkan serta dibahas dalam penelitian ini. Osilasi chaotic ini dimodelkan menggunakan Elmanneural network karena bentuknya yang sederhana dan juga melibatkan algoritmabackpropagation dengan adaptive learning rate dan momentumnya.Unjuk kerja learning rate dan momentumnya lebih baik dibandingkan jika tanpa momentumnya. Unjuk kerja chaotic dalam sistem tenaga listrik muncul karena sistem ini dioperasikan dalam mode critical. Unjuk kerja chaotic ini terdeteksi dengan munculnya sebuahchaotic attractordalam phase-plane trajectory.
Distribution Network Reconfiguration Using Binary Particle Swarm Optimization to Minimize Losses and Decrease Voltage Stability Index Aji Akbar Firdaus; Ontoseno Penangsang; Adi Soeprijanto; Dimas Fajar U.P.
Bulletin of Electrical Engineering and Informatics Vol 7, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (906.197 KB) | DOI: 10.11591/eei.v7i4.821

Abstract

Power losses and voltage drop are existing problems in radial distribution networks. This power losses and voltage drop affect the voltage stability level. Reconfiguring the network is a form of approach to improve the quality of electrical power. The network reconfiguration aims to minimize power losses and voltage drop as well as decreasing the Voltage Stability Index (VSI). In this research, network reconfiguration uses binary particle swarm optimization algorithm and Bus Injection to Branch Current-Branch Current to Bus Voltage (BIBC-BCBV) method to analyze the radial system power flow. This scheme was tested on the 33-bus IEEE radial distribution system 12.66 kV. The simulation results show that before reconfiguration, the active power loss is 202.7126 kW and the VSI is 0.20012. After reconfiguration, the active power loss and VSI decreased to 139.5697 kW and 0.14662, respectively. It has decreased the power loss for 31.3136% significantly while the VSI value is closer to zero.
Biogas Production from Water Spinach and Banana Peel Waste Using Plug Flow Reactor Soeprijanto Soeprijanto; Alif Adi Kaisar; Dyah Firdha Amalia
IPTEK The Journal of Engineering Vol 7, No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v7i2.a9928

Abstract

Biofuel is one of the promising energy in the future that can play an essential role in maintaining energy security in Indonesia Biogas, which is only one of many types of biofuels is considered a renewable energy source that does not contribute to the impact of greenhouse gases. The main composition of the gas consists mainly of methane (CH4), and carbon dioxide (CO2) and resembles commonly used fossil fuels such as natural gas. This study aimed to determine the method of making biogas using water spinach and banana peel waste. The process of making biogas begins with preparing the materials to be fed to the bioreactor daily. The prepared material is put into the bioreactor continuously every 24 hours. The results obtained are the C/N content of water spinach 10 while the banana peel is 42. The C/N ratio affects biogas production. The maximum production of biogas accumulation is in water spinach as raw material. On water spinach, the yield was 287.825 l/kg substrate and the average volume per day was 17.989 l/kg substrate. The banana peel yields 46,184 l/kg of the substrate and the average volume per day is 2,887 l/kg of the substrate. Based on the flame test conducted at the beginning of the week the gas produced can be burned, this occurs in all raw materials.
The Application of Electrocoagulation to Treat Meatball Wastewater with Aluminium Electrode Soeprijanto Soeprijanto; Findi Kusuma Wardani; M Yosi Kurniawan
IPTEK The Journal of Engineering Vol 7, No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v7i2.a10026

Abstract

The meatball factory in the Keputih, Surabaya produce meatball liquid waste with a COD value of 11,072 mg/L so it requires special treatment before being discharged into the environment. This research was conducted to treat that meatball liquid waste by electrocoagulation method using aluminum electrodes. The variables were arranged using completely randomized design at pH variations of 5.5 and 9, residence time of 15, 30, 45 and 60 minutes, number of plates of 4 and 8, and current density of 312.5; 375; 156.25; 187.5 A/m2 in batches then will be analyzed for COD, TDS and Turbidity. This research has obtained results that optimal time for electrocoagulation varies from 15-45 minutes then current density of 187.5 and 375 A/m2 are slightly better than 156,25 and 312,5 A/m2 then pH 8 had better treatment results than pH 5.5 especially in turbidity then the use of  8 aluminum plates at the same electric current had far more better results than 4  plates. So that the best efficiency in this wastewater treatment is obtained by removal of COD value up to 94.78%, Turbidity up to 98.68% and TDS up to 76.63% at a current density of 187.5 A/m2 and pH 8 for 30 minutes.
Bioethanol Production From Tapioca Solid Waste In A Batch Reactor Soeprijanto soeprijanto; Siti Wulandari; Mohamad Dwi Alfaridzi
IPTEK The Journal of Engineering Vol 8, No 1 (2022)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v8i1.a10409

Abstract

Tapioca solid waste is a by-product of processing tapioca flour in the form of dregs and contains a lot of carbohydrates which can be developed benefits by treating the waste through an enzymatic process by hydrolysis as bioethanol. Bioconversion technology is an enzymatic conversion of materials by hydrolysis which can be used to increase the value of tapioca solid waste. The purpose of this research is to convert starch from solid waste of tapioca flour industry into bioethanol through enzyme hydrolysis and fermentation processes. This study was conducted to determine the effect of the ethanol content produced from the concentration of 50 gr/l, 100 gr/l, and 150 gr/l waste of tapioca concentrations with 10ml, 15, and 20ml enzymes. The cassava samples were hydrolyzed using Alpha-amylase enzymes with various concentrations of 10ml, 15, and 20ml and 10ml Glucoamylase enzymes. In the liquefaction process, glucose content is analyzed every 30 minutes for 2 hours, then in the saccharification process, glucose content is analyzed every 30 minutes for 3 hours. The acid hydrolyzate solution was adjusted to pH 4.5 and then fermented for 3 days and analyzed every 12 hours. From the results of the study, it was found that the optimal treatment variable was the concentration variable of 150 gr/l waste of tapioca (solid waste tapioca flour) with a concentration of 20 ml of Alpha-amylase enzyme. The ethanol content obtained from the fermentation process is 3.98% (v/v).
Bioethanol Production from Wastewater of Brown Sugar Home Industry in Kediri via Enzymatic Hydrolysis and Fermentation Soeprijanto Soeprijanto; Afan Hamzah; Nabila Fara Anindya; Putri Selly Mudyawati
IPTEK The Journal of Engineering Vol 7, No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v7i2.a10528

Abstract

Bioethanol is ethanol whose main ingredients are from plants and generally use a pharmaceutical process. Therefore, Indonesia still needs a more effective source of bioethanol as fuel. Bioethanol production from vegetable waste is a realistic solution, one example is waste from the brown sugar home industry. The purpose of this research is to innovate the production of bioethanol by utilizing sap sugarcane waste in a brown sugar industry home using the Enzyme Hydrolysis and Fermentation Method. The process of making bioethanol is the raw material preparation stage, the hydrolysis stage, and the fermentation stage. The first stage, the preparation of raw materials is done by filtering the molasses waste and then dissolving it with distilled water in 2000 mL Erlenmeyer. the second stage, the hydrolysis stage, is to hydrolyze the molasses solution according to the predetermined ratio variables, by going through two stages in the hydrolysis stage, namely liquefaction and saccharification. In the liquefaction process, -amylase is added at a temperature of 90oC and heated on a hot plate stirrer for 2 hours. Then the saccharification stage was carried out by adding the enzyme gluco-amylase at a temperature of 65oC for 4 hours. The third stage, the fermentation stage, was carried out with variations of bread and yeast tape with the additional variables of 5%, 10%, and 15% nutrient (2% urea and 3%). Fermentation will be carried out for 3 days. The results showed that the maximum sugar content was achieved by using a concentration ratio of sugarcane juice: water = 1:0 with an enzyme hydrolysis process of 196.08 g/L. The maximum bioethanol content after fermentation was 18.6% and reducing sugar of 10.98 g/L was achieved by using 10% baker's yeast at a concentration of sugar cane juice: water ratio = 1:1. The maximum bioethanol content after the fermentation process was 12.96% and the reducing sugar was 27.78 g/L was achieved using 10% tape yeast at a concentration ratio of sugarcane juice: water = 1:1.
Preliminary Study of Reducing Sugar Production from Coconut Husk by Enzymatic Hydrolysis Using Chitosan Immobilized Crude and Commercial Cellulase Afan Hamzah; Muhammad Nurul Hakim; Baiq Firyal Salsabilla Safitri; Nurul Maziyah; Laila Nur Rahmah; Hanny F Sangian; Soeprijanto Soeprijanto; Arief Widjaja
IPTEK The Journal for Technology and Science Vol 31, No 1 (2020)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.31 KB) | DOI: 10.12962/j20882033.v31i1.5638

Abstract

The objective of this research was to study the production of sugar from coconut husk using immobilized crude and commercial cellulose, including temperature and mixing speed during immobilization. The enzyme from Aspergillus Niger was immobilized on chitosan alone and cross-linked with Glutaric Dialdehyde (GDA). Coconut husk waste was grinded and chemically pretreated using NaOH 1% (w/v). Fourier Transform Infrared Spectroscopy (FT-IR) measurement revealed that enzyme was covalently bonded to the support. Cellulose immobilized on chitosan cross-linked with GDA produced more sugar than immobilized on chitosan alone. Both the crude and commercial enzyme had their yield decreased after immobilization. Despite its less enzyme coupled on micro-sized chitosan, reducing sugar yielded by an immobilized enzyme on micro-sized chitosan had a competitive result with macro-sized chitosan. This may due to decreasing mass transfer resistance when using a smaller size of chitosan. Several important factors such as temperature, mixing speed, and purity of enzyme responsible for the performance of sugar produced from insoluble cellulose using cellulose immobilized on insoluble support was thoroughly discussed.
Biogas Production from Canteen Wastes Using a Vertical Anaerobic Digester Soeprijanto Soeprijanto; Juzma Ilmahur Mawaddah; Rexy Widya Tauchid; Anfi Reynikha Fatullah; Sashi Agustina
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2019: PROSIDING SNTKK 2019
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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

Abstract

Production of Bioethanol from Solid Wastes of Tapioca Flour Industry Through Enzymation and Fermentation Process Soeprijanto Soeprijanto; Prima Dana Wisesa Adiwarna; Septian Dyah Faristi; Metika Mega Agata; Muhammad Irwan Budianto
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2019: PROSIDING SNTKK 2019
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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

Abstract

The Use of Durian Peel Wastes for Bioethanol Production Soeprijanto Soeprijanto; Ady Prima A; Irene Fransisca T; M. Ibrahim AH; Inayah Wulandari
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2020: PROSIDING SNTKK 2020
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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

Abstract

Durian peel (Durio zibethinus Murr) is one of most agricultural residues that have a percentage of approximately 60-75% and inner durian peel (soft layer) contains 11.78% starch that can be used as raw material for ethanol production. This study aimed to determine the effect of durian peel concentration on bioethanol production and the fermentation time required for bioethanol yield. Bioethanol production was carried out in a batch reactor. Two steps of liquefaction and saccharification were carried out to obtain reducing sugar. In liquefaction, 200 g durian peel flour and α-amylase were mixed with water in an Erlenmeyer 2 litter then was heated at 90°C for 2 hours. In saccharification, this mixture was then heated at 60°C for 4 h. The sugar obtained was then fermented by adding yeast as much as 0.2%; urea 0.5%; KH2PO5 0.5% of the amount of reducing sugar obtained. Bioethanol was obtained by fractionation distillation of the fermentation at 78°C. The results showed that in the saccharification using flour with a concentration of 10, 20, 30, and 40% (w/v) produced reducing sugar of 22.23, 44.25, 55.45, and 84.61 g/l, respectively. Bioethanol in the fermentation process was 1.9, 3.6, 5.2, and 7.3%, respectively. It concluded that maximum bioethanol was obtained approximately 7.3% with the reducing sugar used at 84.615 g/l during 4 d fermentation. The bioethanol content obtained was 95% after fractionation distillation.
Co-Authors Achmad Arifin Achmad Dwitama Karisma Achmad Elsony Achmad Ferdiansyah Adani, Muhammad Afaf Adelhard Beni Reihara Ady Prima A Adyatmoko Wirananto Afan Hamzah, Afan Agung Subyakto Agus Kiswantono Agus Surono Agustiani, Elly Aip Badrujaman Aisha, Nurul Ali Altway Alif Adi Kaisar Alif Adi Kaisar Alifia, Luluk Altway, Saidah Amirullah Amirullah Amirullah Amirullah Anara, Siti Alicia Andhika, Adi Andita Noor Shafira Anfi Reynikha Fatullah Anfi Reynikha Fatullah Aparamarta, Hakun Wirawasista Ardyono Priyadi Arief Abdurrakhman, Arief Ariefin, Dayu Adestamy Arif Wahjudi Arifin, Achmad Arino Anzip Aryani, Ni Ketut Asrori, Mohamad Fakhri Awaluddin Tjalla Azis, Ahmad Rifky Baiq Firyal Salsabilla Safitri Bima Mustaqim Budi Setiawan Budi Setiawan Budiman, Fajar Christina Tio Trisnasari Citra Rahmadhani Danawati Hari Danawati Hari Prajitno Danawati Hari Prajitno Daniar Fahmi, Daniar Daryanto Daryanto Dheny Ashari Hasan Dimas Anton Asfani Dimas Fajar U.P. Dimas Fajar Uman Putra Dinal Izzati Dinny Harnani Dinny Harnani Dwiana Hendrawati Dyah Firdha Amalia Dyah Firdha Amalia Eko Sulistyowati Ema Umilia Enny Zulaika Ervina Rosanita Rohmah Fajar Arif Widodo Fajar Budiman, Fajar Fauzan Nusyura Fauziah Fauziah Findi Kusuma Wardani Firdaus Firdaus Firdaus, Aji Akbar Fredy Kurniawan Gilang Hari Pratomo Giorgio Rendra Gumelar Gunadin, Indar Chaerah Gurning, Raja Oloan Saut Habibur Rohman Hanny F. Sangian Harits Eka Febrianto Harus Laksana Guntur hasti afianti Herlambang Setiadi Herlambang Setiadi Hermagasantos Zein Hermawan, Yoseph Meidyanto Hertiari Idajati, Hertiari Husna, Aghnina Camilla I Gusti Ngurah Satriyadi Hernanda I Made Ginarsa I Made Yulistya Negara I.D.A.A Warmadewanthi Ignatius Riyadi Mardiyanto Ignatius Riyadi Mardiyanto Imam Abadi Imam Wahyudi Farid Inayah Wulandari Irene Fransisca T Irma Nurhanifah Fenda Putri Ismit Mado Istiqfarin Istiqfarin Iwan Vanany Jangkung Raharjo Januar Adi Perdana Jatayu, Anoraga Johari Johari Juzma Ilmahur Mawaddah K. Brighton Karar Mahmoud Karenina Anisya Pratiwi Karenina Anisya Pratiwi Kemas Robby Firmansyah Kharisma Bani Adam Kusuma, Hendra Siswanto Laila Nur Rahmah Lailatul Qomariyah, Lailatul Lidya Lorenta Sitompul Lilik Fatmawati, Lilik Lily Pudjiastuti, Lily M Yosi Kurniawan M. Ibrahim AH Maharani, Salma Mahendra Wardhana, Mahendra Mahmoud, Karar Maickel Tuegeh Masaji, Marga Mat Syai’in Mauridhi H Purnomo Mauridhi Hery P Mauridhi Hery Purnomo Metika Mega Agata Mikhael Vidi Santoso Moch Revandra Moch. Khoirul Anwar Mochamad Ashari Mochamad Luthfiyansah Mochammad Wahyudi Mochammad Zayyan Difa Fadhillah Mochammad Zayyan Difa Fadhillah Mohamad Dwi Alfaridzi Mohammad Arie Reza Mohammad Herli Muchammad nurif, Muchammad Muhamad Haddin Muhammad Abdillah Muhammad Abdillah Muhammad Abdillah Muhammad Irwan Budianto Muhammad Nurul Hakim Muksin Muksin Mulyadi, Yeyes Muthmainnah, Melania Suweni Muntini Nabila Fara Anindya Nabila Fara Anindya Nanda Dicky Wijayanto Ni Ketut Aryani Ni Ketut Aryani Niniek Fajar Puspita, Niniek Fajar Nurlaili Humaidah Nurlaili Humaidah, Nurlaili Nursalim Nursalim Nurul Maziyah Ocy, Dwi Rismi Ontoseno Penangsang Prima Dana Wisesa Adiwarna Prohantoro, Rudy Pujiantara, Margo Purwoharjono Purwoharjono Purwoharjono Purwoharjono Putra, Dimas Fajar Uman Putri Selly Mudyawati Putri Selly Mudyawati Rachmad Setiawan Rachmaniah, Orchidea Rahman, Nisrina Amatur Rahmawati, Deti Rakhmat Asrie Wibowo N Reihara, Adelhard Beni Rexy Widya Tauchid Rezi Delfianti Rian Pratama Risniyani, Andi Evi Risqy Rohmawati Riyadi Riyadi Riyan Arthur Rizka Winda Novialifiah Rizky Pratama Putra Rizkylillah, Muhammad Sadam Robby, Barikly Rony Seto Wibowo Rony Seto Wibowo Sashi Agustina Sashi Agustina Sayyida Sayyida Selvi Marcellia Septian Dyah Faristi Septiana, Devika Nurlaela Setiawan, Rachmad Seto Dyana Sugeng Sheptian, Riky Sholichah, Wildatus Siti Wulandari Sjamsul Anam Sjarief Widjaja Soebagio Soebagio Subyakto, Agung Sugiyanta, Lipur Suhartono Suhartono Suprapto Suprapto Suprapto Surya Dwi Kisdarmawan Suwito Suwito Suwito Suyanto, Suyanto Tri Widjaja Triastuti, Warlinda Eka Umar Umar Vicky Aditia Tristanto Wirawan Wirawan Wulan Maghfiro Zuchrillah, Daril Ridho Zuchrillah, Daril Ridho