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All Journal Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Journal of Engineering and Technological Sciences Jurnal IPTEK Jurnal Chemurgy ASEAN Journal of Chemical Engineering

Renanto Handogo

Chemical Engineering Department, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia

Author-ID : 274353

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering

Published : 21 Documents Claim Missing Document

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Articles

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The Power Consumption Performance of an Orbiting Screw Solid-Solid Mixer Semuel Pati Senda; Renanto Renanto; Achmad Roesyadi; Wahono Sumaryono; Yazid Bindar
Journal of Engineering and Technological Sciences Vol. 44 No. 3 (2012)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.eng.sci.2012.44.3.6

In this work we have investigated mixing in a modified orbiting screw mixer (MOSM) designed for solid-solid mixing. Mixing was carried out using urea powder and natural zeolite powder (UZ) of three varying particle sizes (50-60, 60-80 and 80 mesh). Power consumption was calculated from the measured torque of orbit and screw, obtained from computerized records. It was found that the mixing process in the modified orbiting screw mixer with air injection required a lower power consumption for each particle-size group when compared to mixing without air injection. With UZ mixing in MOSM with air injection, the lowest E was obtained for the 60-80 mesh particle-size group (4,297 Joule/kg-1),whereas when mixing without air injection, the value was 10,296 J/kg. The best mixing operation in this experiment was achieved at NFr = 1.18x10-3 and in the range of values NReâ‰ˆ 8.77x107 to 2.63x108. Moreover, in this study, we have developed an equation to estimate the power consumption required for mixing and determined its correlation with dimensionless numbers.

PEMILIHAN TEKNOLOGI PROSES GEOTHERMAL SECARA TEKNIS PADA PEMBANGKIT LISTRIK TENAGA PANAS BUMI DI INDONESIA Daril Ridho Zuchrillah; Renanto Handogo; Juwari Juwari
Jurnal IPTEK Vol 21, No 2 (2017)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2017.v21i2.203

Saat ini, geothermal power plant memproduksi beban dasar listrik yang lebih murah, handal dan ramah lingkungan. Namun efisiensi konversi yang terdapat pada pembangkit listrik tenaga panas bumi sangatlah kecil daripada pembangkit listrik tenaga fosil lainnya. PT. Geo Dipa Energi unit Dieng, Jawa Tengah merupakan salah satu perusahan pembangkit listrik di Indonesia yang memanfaatkan energi panas bumi berupa steam sebagai penggerak utama dengan teknologi flash steam. Pemilihan teknologi proses flash steam telah dikembangkan dengan model pendekatan matematis berdasarkan hukum termodinamika menggunakan software Engineering Equation Solver (EES). Pada penelitian ini dapat disimpulkan bahwa kualitas fisik steam yang dihasilkan dari sumur produksi dalam suhu 306 â°C dan mempunyai nilai entalpi sebesar 1379,7 kJ/kg, Kondisi operasi separator yang digunakan perangkat lunak EES berada di suhu 179,9 â°C dan tekanan 1000 kPa dengan menghasilkan daya listrik sebesar 13.929,63 kWe dengan besarnya efisiensi 23,41 %. Telah dikembangkan simulasi pemodelan dengan kombinasi antara single flash steam dengan binary cycle. Kombinasi teknologi single flash steam dan binary cycle ini menghasilkan daya sebesar 18.456,24 kW dengan efisiensi overall plant sebesar 31,02 %. Hal tersebut memiliki efisiensi terbesar sehingga dirujuk sebagai pilihan teknologi proses geothermal yang tepat untuk PLTP PT. Geo Dipa Energi unit Dieng, Jawa Tengah. Sedangkan teknologi kombinasi single flash dengan dual binary cycle ini menghasilkan daya sebesar 18.329,768 kW dengan efisiensi overall plant sebesar 30,81 %.

Cost Optimization In The Scheduling On Heat Exchanger Cleaning Process David Licindo; Renanto Handogo; Juwari Purwo Sutikno
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Cost utility is very important in an industry, particularly in the chemical industry. For an industry that operates the heat exchanger in the production process, utility usage is determined by the maintenance of this devices, one of which is cleaning. Therefore, it is necessary to schedule the optimal cleaning in order to obtain optimum expenses as well. in this paper, a cost optimization model has been developed to obtain ideal scheduling that takes into account the time of cleaning with minimum targets utility costs. Simple case study problem will be given to show the application and the results

Maximum Peak-Gain Margin 2DOF-IMC Tuning for a 2DOF-PID Filter Set Point Controller Under Parametric Uncertainty Nur Hidayah; Juwari Juwari; Renanto Handogo
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.308

The specification of controller setting for a standard controller typically requires a trade-off between set point tracking and disturbance rejection. For this reason two simple strategies can be used to adjust the set point and disturbance responses independently. These strategies are referred to as controllers with two degree of freedom. Unfortunately, the tuning parameters in the case of model uncertainty at two degree of freedom structure controller is difficult to obtain. Juwari et al (2013) has introduced maximum peak-gain margin (Mp-GM) tuning method to obtain setting parameter of two degree of freedom structure controller based on model uncertainty. This tuning method are able to obtain the good controller parameter even under processes uncertainties on standard two degree of freedom (was abbreviated as 2DOF) IMC. This research will be conducted on development maximum peak-gain margin tuning method for a two degree of freedom PID filter set point structure controller. The simulation results show that the maximum peak gain margin tuning method can give a good target set point tracking, disturbance rejection and robustness in system a 2DOF-PID filter set point controller.

Mp Tuning for Internal Model Control 2x2 Multi Input Multi Output (MIMO) System Dinny Winda Astuti; Juwari Juwari; Renanto Handogo
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.274

IMC is a type of model based control that compensates time delay in the process. The controller tuning is quite simple in case of no-error in the model, otherwise it will be a difficult matter. Mp tuning has been considered a tuning for uncertain processes. To extend IMC to MIMO system, a new method based on Maximum Peak (Mp) is developed . The present study proposes Maximum Peak (Mp) tuning for IMC in 2x2 multi input and multi output (MIMO) system. Three particular 2x2 model of distillation colomn are being studied, the best configuration is analyzed by Relative Gain Array (RGA) and Average Dynamic Gain Array (ADGA) method. The tuning method consists of two main steps: Firstly, determine the worst case of the model uncertainty. Secondly, specify the parameter of set point controller using maximum peak (Mp) criteria. The effectiveness of Mp tuning for IMC in MIMO system is evaluated and compared to Biggest Log Modulus Tuning (BLT) for MIMO-PI Controller, Skogestad Tuning, and Rivera Tuning. Evaluation and comparison have been done through simulation and the results are satisying.

Implementation of a Mathematical Modelling of a Rotary Cement Kilns Serlya Aldina; Juwari Purwo Sutikno; Renanto Handogo
IPTEK The Journal for Technology and Science Vol 31, No 1 (2020)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Rotary cement kiln is the main equipment in the cement industry that has complex dynamic behavior, where any changes will affect the quality of the product and the consumed energy. A one-dimensional model of rotary kiln is needed to understand kiln’s behavior and improve kiln operating and design to achieve the optimum condition of product quality and energy required. In this study, the onedimensional mathematical model of a dry rotary cement kiln with pulverized coal combustion is developed. This model consists of a set of nonlinear ordinary differential equations and nonlinear algebraic equations that describe material and energy balance equations. The model has been solved numerically by using Matlab R2015a, and it has been validated by comparing the result with published experimental data. Based on the result, the steady-state simulation shows that the behavior of the model developed is appropriate with the results presented in the literature. It can be concluded that the model is accurate (error < 6%) to describe the profile of temperature and bed composition along with the kiln. It can be used to obtain a better understanding of kiln’s behavior and improve the kiln operating and design to achieve the optimum condition.

PREDICTION ANALYSIS OF FOULING MODEL ON HEAT EXCHANGER IN THE CRUDE OIL REFINERY Hairul Huda; Renanto Renanto; Totok Ruki Biyanto; Rif'an Fathoni; Tantra Diwa Larasati
Jurnal Chemurgy Vol 6, No 1 (2022): Jurnal Chemurgy-Juni 2022
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/cmg.v6i1.7672

Fouling mainly occurs in the oil industry. Fouling is an unwanted deposit in HE (heat exchanger). Reliable fouling models are scarce, although empirical and theoretical models have been proposed to describe fouling in heat exchangers. The general models of empirical fouling used are linear, falling rate, and asymptotic. The research methodology begins with the acquisition and use of operational fouling data, which is then followed by the use of an asymptotic fouling model and ends with calculating the thickness of fouling in all HE. The object of this research study is all HE in the crude oil refinery HEN (heat exchanger network). The aim of this research is to use the asymptotic fouling model and get the fouling thickness. The fouling resistance from time to time increases, but in the end, it tends to be stationary, where for the final value, the highest fouling resistance is in HE-10, namely 14.8E-03 (m2°C/W), and the lowest value is fouling resistance at HE- 01 is 1.27E-03 (m2°C/W). The thickness of HE fouling in asymptotic conditions indicates that HE undergoes the same deposition process as suppression.Keywords: fouling, heat exchanger, asymptotic, crude oil refinery, heat exchanger network

Comparison of Steady State and Dynamic Interaction Measurements in Multiloop Control Systems Renanto Handogo; Avon T. H.; Joko Lelono
ASEAN Journal of Chemical Engineering Vol 5, No 1 (2005)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

The applicability of the steady-state Relative Gain Array (RGA) to measure dynamic process interactions in a multiloop control system was investigated. Several transfer function matrices were chosen, and the gains, time constants, and dead times of their elements were varied to represent the systems with dominant dynamic interactions. It was shown that the steady-state RGA method predicted the controller pairing accurately if the pairing elements recommended by RGA had the bigger gains and the same or smaller time constants compared to other elements in the corresponding rows. When these conditions were not met, the RGA would give a wrong result, and dynamic interaction measurements, such as the Average Dynamic Gain Array (ADGA) and the Inverse Nyquist Array (lNA), should be used instead to determine the best controller pairing in a multiloop control system. Keywords: Control pairing, dynamic process interaction, multiloop control systems, Relative Gain Array (RGA), and steady state.

Steady State and Dynamic Interaction Analysis in Multivarible Control System Renanto Handogo; Gede Wibawa; Totong Rusmana; Moch. Arief Hidayat
ASEAN Journal of Chemical Engineering Vol 4, No 1 (2004)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Relative gain array (RGA) and average dynamic gain array (ADGA) have been investigated as a measure for interaction of multi-input multi-output (MIMO) 2x2 system. Several examples have been chosen to represent MIMO with various time constants and dead time of first order plus dead time. The ratio of off-diagonal and on-diagonal element time constants of the transfer function processes (6) has shown more dominance to interaction than ratio of off-diagonal and on-diagonal element dead times of the transfer function processes (0,) . RGA, INA,and ADGAgive the same result for t'j 3 1 and INA and ADGA should be used for t'j 1 regardless the value of do

Oil Refinery Heat Exchanger Network Cleaning Scheduling Strategy with Unit Cleanability Consideration Hairul Huda; Renanto Handogo; Totok Ruki Biyanto; Wei Wu; Vincentius Surya Kurnia Adi
ASEAN Journal of Chemical Engineering Vol 20, No 1 (2020)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajche.51880

Heat exchanger networks (HENs) play an important role in the chemical industries. Unfortunately, fouling is inevitable in heat exchangers operation. Therefore, the optimal cleaning procedure is required to restore heat exchangers' performance periodically. A systematic cleaning scheduling strategy for the heat exchanger network in an oil refinery is proposed in this work. There are 11 operating heat exchangers in an oil refinery to be reviewed. Different cleaning decision scenarios based on the overall heat transfer coefficient are explored for optimal cleaning schedule performance. The daily number of exchangers available to be cleaned i.e., the unit cleanability, is investigated while minimizing the energy consumption and the additional heat requirement due to the offline heat exchanger under cleaning procedure. The HEN performance and the energy-saving from the cleaning procedures are benchmarked with the uncleaned HEN. The results indicate that the cleaning procedure significantly increases the HEN performance and simultaneously reduces the heat requirement if compared to the untreated HEN benchmark. The possible conflicting situation is discussed when some heat exchangers are waiting to be cleaned due to the unit cleanability restriction, which allows the overall heat transfer coefficient to be below the allowed limit. Therefore, nonconflicting cleaning scheduling is also addressed in this work by relaxing the unit cleanability limit. Furthermore, the optimal cleaning schedule is also suggested for user reference. In this work, the optimum cleaning schedule with minimum energy consumption and maximum energy saving could be achieved when cleaning decision limit is set at 40% decrease of overall heat transfer coefficient. In the contrast, the lowest number of cleaning procedures is associated with 90% decrease in the overall heat transfer coefficient as the cleaning decision limit.

Co-Authors Achmad Roesyadi Ali Altway Aminuyati Annasit Annasit Ari Widodo Aufal Nawasanjani Avon T. H. Bilal Chabibulloh Budiman, Fajar Daril Ridho Zuchrillah David Licindo Dimas Jouhari Dinny Winda Astuti Fathoni, Rif'an Gede Wibawa Hairul Huda Joko Lelono Juwari Juwari Kevin Kevin Kurniawan, Adhi Liga Indriyani Lino Meris Rahmanto Moch. Arief Hidayat Mochamad Irfan Dwiputro Muhammad Rivai Nur Faizah Nur Hidayah Pratiwi, Vibianti Dwi Rendra Panca Anugraha Semuel Pati Senda Semuel Pati Senda Serlya Aldina Tantra Diwa Larasati Totok Ruki Biyanto Totong Rusmana Vincentius Lukas Aria Vincentius Surya Kurnia Adi Wahono Sumaryono Wei Wu Wisnu Kusuma Atmaja Yazid Bindar Yazid Bindar Zuchrillah, Daril Ridho

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