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Zahrotul Azizah
Universitas Nahdlatul Ulama Sidoarjo
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Journal : Journal of Research and Technology

 1 
Simulasi Steady State dan Dynamic pada Kolom De-isobutanizer dengan Penambahan Invers Decoupling pada Sistem Closedloop Zahrotul Azizah
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.376

Abstract

Degenerative Control in the Multi Input Multi Output (MIMO) system is an important topic of process control in industry. The interaction between variables in the process becomes a challenge in designing controllers for MIMO systems. Unwanted interactions cause reduced system performance which results in waste. The addition of inverse decoupling is a new strategy in reducing interactions in the process. The proposed strategy was tested on a de-isobutanizer distillation column. The results obtained were that the IAE value in the inverse decoupling added to the 2DoF IMC structure using the Mp-GM tuning method was smaller than the 2DoF IMC structure without inverse decoupling. This structure could reduce the interaction between variables in the MIMO 2×2 process.
Nanosilica Extraction from Grumusol Soil Medya Ayunda Fitri; Farikha Alfi Syahriyah; Zahrotul Azizah
Journal of Research and Technology Vol. 9 No. 1 (2023): JRT Volume 9 No 1 Juni 2023
Publisher : 2477 - 6165

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

Abstract

Grumusol soil is a type of soil that contains significant amounts of silica. Silica content in grumusol soil can reach up to 90%. The aim of this research was to determine the characteristics of silica nanostructures in Grumusol soil. The stages of the research were carried out including the preparation of raw materials, silica extraction, and XRD analysis. The raw material preparation stage is carried out by cleaning the grumusol soil from dirt. The second stage was carried out by synthesizing silica with the base extraction method and followed by acid deposition. The final stage is X-Ray Diffracion (XRD) analysis. The results of the research that has been carried out is the FWHM value of 0.0900 (<0.1) which indicates that the crystals produced have very good crystals with a very regular structure. The crystal size which includes nanosilica is 39.5076-48.6633 nm for 3M NaOH with 1 and 3 hours extraction time and 5M NaOH with 1 hour extraction time
DINAMIKA DAN PENGENDALIAN SISTEM QUADRUPLE TANK MENGGUNAKAN CONTROLLER PI-PID DENGAN METODE DETUNING Azizah, Zahrotul
Journal of Research and Technology Vol. 6 No. 1 (2020): JRT Volume 6 No 1 Jun 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (800.608 KB) | DOI: 10.55732/jrt.v6i1.141

Abstract

In general, industrial processes have characteristics as multivariable processes where the variables interact with one another which causes poor performance. Quadruple tank is a Multi Input Multi Output (MIMO) system that can be used to analyze dynamics and process control schemes with strong interactions. The design is simple but can represent complex systems in the industry so that a reliable controller can be tested using this system. Tuning controller parameters using Ziegler-Nichols only work well for single loops, therefore detuning controllers are needed using the BLT and Mc Avoy methods. The research method is to make mathematical models and determine the specifications of quadruple tanks. Next make a process simulation and identify the transfer function with the step test method. Interaction analysis using the Relative Gain Array (RGA) method. Tuning controller parameters using the Ziegler-Nichols method is then detuned using the BLT and Mc Avoy methods. Simulation of quadruple tank systems both open loop and closed loop can run well and can be used to test the reliability of PI-PID controllers with BLT and Mc Avoy detuning. Based on IAE values, controller with Mc Avoy detuning are superior compared to controllers with BLT detuning, both at level and temperature controllers.
DINAMIKA DAN PENGENDALIAN SISTEM QUADRUPLE TANK MENGGUNAKAN CONTROLLER PI-PID DENGAN METODE DETUNING Azizah, Zahrotul
Journal of Research and Technology Vol. 6 No. 1 (2020): JRT Volume 6 No 1 Jun 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i1.141

Abstract

In general, industrial processes have characteristics as multivariable processes where the variables interact with one another which causes poor performance. Quadruple tank is a Multi Input Multi Output (MIMO) system that can be used to analyze dynamics and process control schemes with strong interactions. The design is simple but can represent complex systems in the industry so that a reliable controller can be tested using this system. Tuning controller parameters using Ziegler-Nichols only work well for single loops, therefore detuning controllers are needed using the BLT and Mc Avoy methods. The research method is to make mathematical models and determine the specifications of quadruple tanks. Next make a process simulation and identify the transfer function with the step test method. Interaction analysis using the Relative Gain Array (RGA) method. Tuning controller parameters using the Ziegler-Nichols method is then detuned using the BLT and Mc Avoy methods. Simulation of quadruple tank systems both open loop and closed loop can run well and can be used to test the reliability of PI-PID controllers with BLT and Mc Avoy detuning. Based on IAE values, controller with Mc Avoy detuning are superior compared to controllers with BLT detuning, both at level and temperature controllers.
Simulasi Steady State dan Dynamic pada Kolom De-isobutanizer dengan Penambahan Invers Decoupling pada Sistem Closedloop Zahrotul Azizah
Journal of Research and Technology Vol. 7 No. 1 (2021): JRT Volume 7 No 1 Jun 2021
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v7i1.376

Abstract

Degenerative Control in the Multi Input Multi Output (MIMO) system is an important topic of process control in industry. The interaction between variables in the process becomes a challenge in designing controllers for MIMO systems. Unwanted interactions cause reduced system performance which results in waste. The addition of inverse decoupling is a new strategy in reducing interactions in the process. The proposed strategy was tested on a de-isobutanizer distillation column. The results obtained were that the IAE value in the inverse decoupling added to the 2DoF IMC structure using the Mp-GM tuning method was smaller than the 2DoF IMC structure without inverse decoupling. This structure could reduce the interaction between variables in the MIMO 2×2 process.
Nanosilica Extraction from Grumusol Soil Fitri, Medya Ayunda; Syahriyah, Farikha Alfi; Azizah, Zahrotul
Journal of Research and Technology Vol. 9 No. 1 (2023): JRT Volume 9 No 1 Juni 2023
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v9i1.964

Abstract

Grumusol soil is a type of soil that contains significant amounts of silica. Silica content in grumusol soil can reach up to 90%. The aim of this research was to determine the characteristics of silica nanostructures in Grumusol soil. The stages of the research were carried out including the preparation of raw materials, silica extraction, and XRD analysis. The raw material preparation stage is carried out by cleaning the grumusol soil from dirt. The second stage was carried out by synthesizing silica with the base extraction method and followed by acid deposition. The final stage is X-Ray Diffracion (XRD) analysis. The results of the research that has been carried out is the FWHM value of 0.0900 (<0.1) which indicates that the crystals produced have very good crystals with a very regular structure. The crystal size which includes nanosilica is 39.5076-48.6633 nm for 3M NaOH with 1 and 3 hours extraction time and 5M NaOH with 1 hour extraction time
Co-Authors 'Athiqoh, Nadhiya Yasmin Achmad, Andrean Nur Agus Rachmad Purnama Alqostolani, Bahauddin Anggraeni, Dini Martha Arda Surya Editya Ardhana Fitrianah Ardhana Rahmayanti Ayunda Fitri, Medya Ayyubi, Muhammad Anas Al Aziz, Ahmad Musonnifin Budi Rohimah Carlita, Cindi Erlin Devi Novita Diajeng Ruli Widi Astuti Dian Rahmania, Alifah Dwi Cahyani, Cindy Farikha Alfi Syahriyah Fauzia, Yunia Firmansyah, Mochammad Nizar Fitri, Medya Ayuda Hairul Huda Hamid, Mas Ghoniyyul Insiah, Sofiatul Irwanto, Bagus Iskandar, Ahmad Muhaimin Khabibillah, Aini Kumala Dhaniswara, Trisna Kumalasari, Altara Dea Laily Noer Hamidah Listin Fitrianah Luqman Hakim Luqman Hakim M. Muqorrobynal Faizin Maghfiroh, Mita Umi Maulidin, Ahmad Agung Maulita A, Hariarti Medya Ayunda Fitr Medya Ayunda Fitri Mega Bilqis Suryawantiningtyas Mufarrochah, Mufarrochah Muhammad Mansur Yafi Munawaroh, Al Madinatul Musthofa, Maschan Yusuf Mustofa, Asyik Nengsih, Wahyu Noeriandriko S, Dzulfikar Nur Chamidah Nurmala, Aida Pasa, Kartika Praciana, Yuvi Arinta Pratama, Fredi Aldi Priyatni, Ida Rahayu, Dwi Putri Rahayu, Lasmida Raswadiyanto, Dina Amalia Khoirun Nadha Restiani, Veina Ayu Rifqiyah, Nadia Nur Lailatul Rina Sri Wulandari Rizky Aditya Rohma, Miftakhur Sabri, Rajib Naji Said, Muhammad Husen Sari, Altara Dea Kumala Sari, Melisa Puspita Sa’id, Muhammad Husen Sholichah, Ummi Lathifatus Sonhaji Arif Sumiyarsono, Elmi Syahriyah, Farikha Alfi Tamtiz, Muchammad Trisna Kumala Dhaniswara Umi Tri Ruhana Wafa, Moch Wahyu Wardhana Wahyu Wardhana Wulandari, Nanda Ugig Yulia Tri Rahkadima