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All Journal Reaktor International Journal of Science and Engineering (IJSE) Eksergi: Chemical Engineering Journal Seminar Nasional Teknik Kimia Kejuangan
Yulius Deddy Hermawan
Department Of Chemical Engineering, Faculty Of Industrial Engineering, Universitas Pembangunan Nasional “Veteran” Yogyakarta
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Control & Systems Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Identifikasi Keberadaan Air pada Proses Penyaluran Fluida Produksi di Lapangan Minyak Lepas Pantai Hariyadi Hariyadi; Dedy Kristanto; Yulius Deddy Hermawan
Eksergi Vol 17, No 2 (2020)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v17i2.3718

Abstract

Oil production that flows from the Platform to the FSO (Floating Storage and Offloading) "A" is derived from PT. "B" and the "C" Oil Company in the Madura Strait. The total oil production flowing from the Platform to the "A" FSO is currently around 6000 BOPD. As a result of the delivery system using the same channel, a problem arises, namely oil losses between the Platform as a delivery point and FSO "A" as a receiving point. Besides that, the water that is involved in the oil distribution process will be a deduction factor that will be used as a correction for oil shipments, the more water the less amount of oil will be received at FSO "A". The oil samples that have been taken are then observed for their characteristics, namely density, composition (%-mole), BS&W, emulsion, flash, shrinkage at PPPTMGB "Lemigas" Laboratory Jakarta. The specific gravity of samples is around 1,018. While the characteristics of the two are different from the characteristics of sea water; this difference is shown by the results of SG (1,018 vs 1,025) and the salt content of sea water is much higher than the water formation of PT "B" and PT "C". The oil samples of PT "B" and PT "C" have almost the same SG, which is 0.79. BS&W oil in both ships is quite low; this shows that the separation of oil and water on the Platform went quite well. However, BS&W samples in incoming FSO "A" are very high, at 5%; this indicates an off-set at the water-oil interface level settling time on the Platform separator so that water can be joined with the oil flow from the Platform to the FSO "A"
Design of Flow Control System with A Kickback Flow as A Manipulated Variable Yulius Deddy Hermawan
Eksergi Vol 14, No 2 (2017): Eksergi Volume 14 No 2 2017
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v14i2.2089

Abstract

The open loop experiment of water flow dynamic in pipe has been done in laboratory. Pump was used to flow water in pipe. Part of liquid from discard of pump was recycled back to the suction of pump (kickback) and adjusted to control the liquid flow to the next process. The open loop laboratory experiment produced the steady state parameters; they were discard flowrate =16.6 [L/min], kickback flowrate =5.8 [L/min], and liquid flowrate to the next process =10.8 [L/min]. These steady state parameters were then used as the initial value for closed loop simulation with computer programming. This study has proposed the liquid flow control configuration by manipulating the kickback flow. Proportional Integral (PI) was proposed to control the flow and Routh-Hurwitz (RH) stability criterion was chosen to predict the range of the controller gain (Kc) that gives stable response. The closed loop model was solved analytically with Laplace method for both servo and regulatory problems. The set point change of flow and disturbance were made based on step function. The scilab software was used to do closed loop simulation. Based on RH stability criterion, the controller gain should be negative in order to give stable response. The closed loop simulation showed that by using controller gain Kc=–0.5 and integral time constant tI=0.3 [min], stable and fast response with Integral Absolute Error (IAE) near to zero (0,0022) could be achieved.
Process Dynamic of Two-Thermal-Tank-Series with Dead Time Yulius Deddy Hermawan; Wibiana Wulan Nandari; Fauzan Irfandy; Riski Ajin Rahmadi; Aryandhanu Mukti Tri Perkasa
Eksergi Vol 17, No 2 (2020)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v17i2.3700

Abstract

The multi-tank-series system could come up the problem of instability due to dead-time. The goals of this work are to study the dynamic behavior of Two-Thermal-Tanks-Series (TTTS) with dead time through the open loop experiment in laboratory, and to propose the new-module of fundamental chemical engineering practicum in field of process dynamic for undergraduate program. The two stirred-tank-heaters @10L were designed for heating of water fluid. Both of tanks were designed overflow to maintain their volume constant. The gate valve was installed in the inlet pipe of Tank-1 to adjust its volumetric flowrate (f). The inlet temperature of Tank-1 (T1), the liquid temperatures in Tank-1 (T2) and Tank-2 (T3) were measured by thermocouple multi-channels. The volt-ampere-regulators were used to adjust the electrical energy in Tank-1 (q1) and Tank-2 (q2). The mathematical model was solved and rigorously examined in Xcos/Scilab. In order to study the dynamic behavior of TTTS, the inlet flowrate disturbance was made based on step input change. According to our investigation in laboratory and open loop simulation, both Tank-1 and Tank-2 gave stable responses, the model’s responses showed the closed and similar trend with laboratory’s responses, and time delay of about 30 seconds has been found in Tank-2.
Laboratory Core-flooding Test of Surfactant-Polymer Injection Method for Oilfield Production Improvement Dedy Kristanto; Wibowo Wibowo; Hariyadi Hariyadi; Yulius Deddy Hermawan
Eksergi Vol 16, No 1 (2019)
Publisher : Prodi Teknik Kimia, Fakultas Teknologi Industri, UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/e.v16i1.2938

Abstract

The utilization of chemical flooding to improve oil production in a large scale has many used for the oil field. Some cases have a success, and the others have fail when full scale project implemented. Before chemical flooding conducted, once of the recommended best practice to be done is chemical compatibility based on the reservoir characteristic of the layer as a target in improving oil recovery. Hence, coreflooding test in the laboratory to be an important thing to conduct in other to knows and determine the chemical performance after screening phase. The study of coreflooding test in the laboratory, shows that the measurement of surfactant and polymer properties have a good results to be used as an injection fluid in other to improve oil production. Surfactant - polymer injection which has concentrations of 3000 ppm and 1000 ppm with injection mechanism of 0.3 PV surfactant and 0.2 PV polymer gives the result of improving oil production it about 12.89%. Furthermore, based on the qualitative analysis obtained that the used of surfactant SS-B8020 as an injection fluid shown that plugging has not occurred in the reservoir rock pores, it means that the injection fluid was compatible with these reservoir rock.
Dinamika Proses pada Sistem Pemanas Tangki Berpengaduk dengan Arus Bypass Yulius Deddy Hermawan
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2014: PROSIDING SNTKK 2014
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The liquid concentration and temperature dynamic behavior of a stirred tank heater with bypass stream (STHB) has been studied experimentally. A cylinder tank was designed and arranged for experimentation in laboratory. The tank has two input streams, stream-1 (salt solution with its volumetric rate of f1 [cm3/sec], salt concentration of cg1 [gr/cm3]) and stream-2 (water-stream with its volumetric rate of f2 [cm3/sec]). A part of the stream-1 was bypassed (f3 [cm3/sec]) and mixed with the output stream of the tank (f5 [cm3/sec]). The electric heater was employed for heating liquid in the tank. Since the tank was designed overflow, the liquid volume in tank was always constant. In this work, the mass and thermal disturbance load has been made based on step increase and decrease. Those disturbance included the changes of the bypass volumetric rate (f3), the water volumetric rate (f2), and the electric heat (qe). The dynamic behavior of the STHB has also been explored. As can be seen from our investigation in laboratory, the STHB produced a stable response. Furthermore, the open loop dynamic simulation using computer programing was also done, and its simulation results were compared with the experiment data from laboratory. The developed mathematical model of the STHB has been solved numerically. Scilab software was chosen to examine such mathematical model. This study also revealed that the trends of simulation results were quite similar with those in our experiment results.
Simulasi Model Jaringan dan Fasilitas Permukaan Injeksi CO2 Sistem Terpusat pada Lapisan F Lapangan J Yulius Deddy Hermawan; wibowo wibowo
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2013: Prosiding SNTKK 2013 (Arsip)
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The Study of CO2 injection to enhance oil recovery through several stages before implementation on the pilot and full scale projects in the field had been done succesfully. The final stage of this study has been made by modeling of network and CO2 injection surface facilities that can be implemented in J Field. The developed model which is run by production simulator gave significant results both on the re-pressurized stage and CO2 flooding stage. This study showed that the implementation of CO2 injection could be run well. With the model validation through static and dynamic run, this study also reavealed that the network model and surface facilities could work properly.
Perancangan Konfigurasi Pengendalian Proses dengan RGA pada Sistem Pure-Capacitive-Two-Tank-in-Series dengan Pemanas di Tangki T-01 Yulius Deddy Hermawan; Siti Diyar Kholisoh; Indah Permatasari; Amy Farury Ludwinia
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

This research was aimed to design process control configuration in the Pure-Capacitive-Two-Tank-in-Series (PCTTS) quantitatively by using Relative Gain Array (RGA) method. Two square tanks were designed and arranged in series for investigation in laboratory. The electric heater was equipped in the tank T-01. Water was used as a fluid which is assumed that its density and heat capacity were constant. The feed water was flowed to tank T-01 and heated with an electric heater. Water of tank T-01 was then pumped to tank T-02. The pump volumetric rate can be adjusted by changing the pump voltage. This research was done through 2 procedures as follows: preliminary experiment and open loop RGA experiment. The preliminary experiment has given the steady state parameters as follows: the input and output volumetric rates of the 2 tanks were 104 cm3/second, liquid levels of tank T-01 and T-02 were 14 cm, liquid temperatures in tank T-01 and T-02 were 33.5oC, electric heat energy was 1520 watt,  and pump voltage was 66.5 volt. Based on degree of freedom analysis, there were 3 variables of PCTSS system need to be controlled (CV); they were liquid temperature in tank T-01 (T1), liquid level in tank T-01 (h1), and liquid level in tank T-02 (h2). In RGA experiment, the manipulated variable candidates (MV) were changed manually based on the step function and its output (CV) responses were also be recorded. RGA calculation has resulted 3 couples of CV-MV as follows: T1-qe, h1-vpu, and h2-f2. Furthermore, study on the tuning of control parameters and closed loop simulation need to be done to examine performance of the resulted control configuration of PCCTS.
Dinamika Komposisi pada Sistem Tangki Pencampur 10 Liter Yulius Deddy Hermawan
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2012: Prosiding SNTKK 2012 (Arsip)
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

The liquid concentration dynamic behavior of a 10 L mixing tank has been studied experimentally. Tank with volume of 10 liter are designed and arranged for experimentation in laboratory. The tank has two input streams, stream-1 is the water-stream with its volumetric rate of f1 [cm3/sec] and stream-2 is salt solution with its volumetric rate of f2 [cm3/sec] and salt composition of c2 [gr/cm3]. Since the tank is designed overflow, the liquid volume in tank is always constant. In this work, the mass disturbance load has been made based on step increase and decrease. Those disturbance include the changes of the flow-rate input (f1 and f2) and the concentration of the input stream (c2). The dynamic behavior of mixing tank system has also been explored. As can be seen from our investigation in laboratory,the mixing tank with volume capacity of 10 liter produces a stable responce. Furhtermore, the open loop dynamic simulation using computer programing is also done, and its simulation result are compared with the experiment data from laboratory. The developed mathematical model of the mixing tank system has been solved analytically by laplace transform. The trends of simulation results are quite similar with those in our experiment results.
Studi Terintegrasi Kelayakan Proses Injeksi Gas CO2 untuk Enhanced Oil Recovery (EOR) di Lapangan Minyak Dedy Kristanto; Harriyadi Harriyadi; Yulius Deddy Hermawan; Yusmardhany Yusuf
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2018: PROSIDING SNTKK 2018
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

Penyetelan Parameter Pengendalian Proses dengan PRC pada Sistem Pure-Capacitive-Two-Tank-in-Series dengan Pemanas di Tangki T-01 Yulius Deddy Hermawan; Siti Diyar Kholisoh; Lili Suryani; Ramantasia Aktariastiwi Kusuma Putri
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2016: Prosiding SNTKK 2016
Publisher : Seminar Nasional Teknik Kimia Kejuangan

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Abstract

This researchcontinued the previous work by Hermawan, Y.D. et al., 2016. The goals of this research wereto tune the process control parametersand to do the closed loop dynamic simulationfor the proposed control configuration of Pure-Capacitive-Two-Tank-in-Series (PCTTS) with an electric heater in tank T-01.The proposed control configuration consisted of 3 couples of CV-MV as follows T1-qe, h1-vpu, and h2-f2. The open loop experiment results would be used for tuning of PID control parameters. In this work, the PID control parameters were tuned quantitatively by using Process Reaction Curve (PRC) method. The controllergain (Kc) for temperature control of tank T-01 (TC-01), level control of tank T-01 (LC-01), and level control of tank T-02 (LC-02) has been found as follows: 364.8 watt/oC, -2.3 volt/cm, and -12.9 cm2/second , respectively. The integral time constant (tI) for 3 controllers were as follows: 60 second, 60 second, and 90 second, respectively. The derivative time constant (tD) for 3 controllers were as follows: 15 second, 15 second, and 22.5 second, respectively. Furthermore, the proposed control configuration and resulted tuning parameters were examined through rigorous dynamic simulation by using scilab software. The input volumetric rate disturbance (with amount of ±29%) was made based on step function. The developed of closed loop state equation was solved numerically. Integral of the absolute value of the error (IAE) for TC-01, LC-1 and LC-2 were 73, 1686, and 695, respectively. The dynamic simulation results showed that the proposed control configuration with its tuning parameters gave a stable response to a change in the input volumetric rate. This study also revealed that the PID controller gave fastest responses compared to P and PI controller.
Co-Authors Amy Farury Ludwinia Aryandhanu Mukti Tri Perkasa Dedy Kristanto Dedy Kristanto Dedy Kristanto Fauzan Irfandy Gogot Haryono Hariyadi Hariyadi Hariyadi Hariyadi Harriyadi Harriyadi Indah Permatasari Lili Suryani Ramantasia Aktariastiwi Kusuma Putri Renung Reningtyas Riski Ajin Rahmadi Siti Diyar Kholisoh Siti Diyar Kholisoh Tutik Muji Setyoningrum Wibiana Wulan Nandari Wibowo Wibowo wibowo wibowo Yusmardhany Yusuf