Article Per Year (5 Year)
p-Index From 2021 - 2026
0.659
P-Index
This Author published in this journals
All Journal Jurnal Teknik ITS IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series Bulletin of Electrical Engineering and Informatics Sewagati
Totok Soehartanto
Institut Teknologi Sepuluh Nopember (ITS)
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Public Health Social Sciences Other

Published : 16 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 16 Documents
Search

 1   2 
Perancangan Sistem Monitoring Flowrate, Kandungan Gas Metana, dan Tekanan Guna Mendapatkan Informasi Kondisi pada Bioreaktor Anaerob Jamal Fikri Tanaya; Totok Soehartanto; Putri Yeni Aisyah
Jurnal Teknik ITS Vol 11, No 2 (2022)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23373539.v11i2.86586

Abstract

Telah dilakukan perancangan sistem monitoring flowrate, kandungan gas metana, dan tekanan guna mendapatkan informasi kondisi pada bioreaktor anaerob. Perancangan sistem monitoring ini dilakukan menggunakan bioreaktor yang ada dihutan Pakal Benowo, Surabaya. Biogas yang di hasilkan berasal dari kotoran sapi dari peternakan yang ada disana. Pada proses pembentukan biogas ini bioreaktor sangat rentan terhadap perubahan suhu lingkungan, jumlah substrat yang tidak stabil, dan juga pH. Variabel tersebut perlu diperhatikan karena dapat mempengaruhi kecepatan, dan kualitas biogas yang dihasilkan. Temperatur lingkungan menjadi salah satu faktor utama bagi aktivitas mikroba karena akan berdampak pada tekanan yang dihasilkan. jumlah substrat yang ada dalam bioreaktor akan menentukan volume sehingga flowrate dari bisa menjadi optimal. Pengaruh dari pH dalam bioreaktor dapat mempengaruhi konsentrasi CH4 yang dihasilkan dan akan sangat berpengaruh dalam menentukan kualitas biogas. Beberapa parameter tersebut perlu dilakukan monitoring supaya informasi aktual pada plant dapat terekam, dan kualitas dari biogas yang dihasilkan bisa lebih optimal. Monitoring yang dilakukan nantinya berupa kandungan gas metana, tekanan, dan juga flowrate. Sensor yang digunakan pada bioreaktor ini harus tahan terhadap korosif karena sifat dari biogas ini. Nantinya data dari pembacaan sensor akan ditampilkan pada GUI, dan kondisi dari bioreaktor yaitu stabil, upperload, dan underload beserta output tegangan dari setiap sensor yang digunakan.
Dissolved oxygen control system in polishing unit using logic solver Totok Soehartanto; I Putu Eka Widya Pratama; Safira Firdaus Mujiyanti; Dwi Nur Fitriyanah; Putri Yeni Aisyah; Rico Pardona Pardosi; Nabiilah Azizah Tjandra
Bulletin of Electrical Engineering and Informatics Vol 12, No 2: April 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v12i2.4445

Abstract

The research consists of two parts, the first one is to design the dynamic plant model of polishing unit using artificial neural network (ANN) type backpropagation, and the second one is to design a simulation of a close loop control system on Simulink consisting of logic solver, control valve and ANN polishing unit. The ANN polishing unit was trained and obtained the best model structure 4-24-3 with four inputs chemical oxygen demand (COD) influent, oil in water (OIW) influent, urea, and triple superphosphate (TSP), twenty-four hidden layer nodes, and three outputs (OIW effluent, COD effluent and dissolved oxygen (DO)). The mean square error (MSE) and root mean square error (RMSE) from ANN trained were 0.00485 and 0.06964, obtained by the second iteration. From the simulation results on Simulink by giving several scenarios in the logic solver condition table, the action is brought in the form of urea and TSP nutrition issued by the control valve. The values are used to achieve the DO setpoint (2 mg/L), among others: when COD and OIW influent exceed the quality standard, COD exceeds the quality standard, and OIW does not exceed the quality standard, and the DO error is below zero.
Implementasi Sistem Pembangkit Listrik dari Limbah Cair Mesin Cuci untuk Mereduksi Pencemaran Lingkungan dan Meningkatkan Efisisensi di Umkm Gd Laundry Keputih Surabaya Purwadi Agus Darwito; Tutug Dhanardono; Heri Joestiono; Roekmono; Totok Soehartanto; Arief Abdurrakhman; Nur Laila Hamidah
Sewagati Vol 1 No 1 (2017)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (494.459 KB) | DOI: 10.12962/j26139960.v1i1.293

Abstract

Banyaknya limbah usaha laundry yang tidak dikelola dengan baik dapat mencenari lingkungan. Salah satu usaha laundry di Surabaya yang juga menjadi mitra dalam Program ini adalah UMKM GC Laundry. UMKM ini berlokasi di Keputih Surabaya. Tiap harinya laundry ini melakukan pencucian pakaian sekitar 25 kg dengan 2 mesin cuci. Berdasarkan observasi, limbah cair yang dikeluarkan sekitar 15 liter/ hari. Hal ini dapat merusak ekosistem di sekitar laundry. Pada sisi yang lain mitra juga masih belum efisien dalam penggunaan listrik yang selama ini dapat menurunkan pendapatan per bulan. Oleh sebab itu dirancang suatu sistem pembangkit listrik dengan prinsip elektrokimia dengan larutan elektrolit dari limbah cair mesin cuci. Proses perancangan dari pembangkit listrik ini sebagian sudah terselesaikan. Proses pemilihan bahan untuk proses elektrokimia adalah menggunakan tembaga dan kawat penghantar untuk menunjukkan besarnya beda potensial. Proses assembly dilakukan pada dua wadah yang berisi dua larutan limbah laundry, setelah itu dilakukan pengukuran dengan menggunakan multimeter dan diperoleh besarnya energy listrik yang dihasilkan sebesar 0,549 V. Nilai ini masih terlalu kecil. Untuk itu perlu dilakukan susunan seri dengan wadah yang lebih banyak lagi untuk menghasilkan energi listrik yang lebih besar. Pada pengujian yang telah dilakukan, dihasilkan nilai secara berurutan adalah nilai tegangan listrik yang merupakan output dari sistem ini adalah 0,3 volt pada volume 200 ml; 0,5 volt pada volume 400 ml; 0,6 volt pada volume 600 ml, dan 0,7 volt pada volume 800 ml. Publikasi dilakukan Seminar Material, Instrumentasi, Pembelajaran, Dan Aplikasinya (Semipa 2016) yang diadakan oleh Fisika FMIPA ITB, dengan judul “Studi Eksperimental Pengaruh Volume Air Limbah Laundry terhadap Sistem Penghasil Tegangan Listrik Menggunakan Metode Elektrokimia”.
Performance of Water Pump on Distribution and Transmission Process using Variable Speed Drive Dwi Oktavianto Wahyu Nugroho; Totok Soehartanto; Tahta Anugrah Wibowo
IPTEK The Journal of Engineering Vol. 6 No. 1 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v6i2.a7248

Abstract

The Pump is the vital component in the transmission of water from one unit to another or the distribution water from booster unit to customer. Water pumping has become ineffective due to incorrect installation of the installed pump not in accordance with the pre-installed piping. Investing in network development in the coming year is sometimes one of the reasons why pumps are installed improperly. Thus, high pressure pumps are sometimes installed at lower pipeline pressure. This condition usually does not only double between the pressure in the pipe and pump. Classically, pump output lines are usually coupled with valves (usually butterfly or rotary valves) to provide conditions that correspond to the pump's datasheet. Meanwhile, the classical concept will decrease the lifetime of pump, so the Variable Speed Drive (VSD) becomes the solution. TawangSari, SiwalanPanji, and KedungUling units are picture how VSD can fix kind of problem that faced in classical system. Worst energy use and decreased performance in classical system cause by wrong installation and limitation of supply power are solved by adapting frequency produced by VSD as it needed.
Development of ECU (Electronic Control Unit) to Maintain Stability of Biogas Fuelled Generator Totok Soehartanto; Dwi Nur Fitriyanah; Putri Yeni Aisyah
IPTEK The Journal of Engineering Vol. 6 No. 3 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

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

Abstract

Biogas fueled generator has a unique character because the converter kit on the generator has the characteristic of absorbing the biogas supply. Therefore, in this study, biogas is accommodated in a plastic container equipped with a valve that can adjust the amount of biogas supply pressure. Combustion in the Genset combustion chamber will occur if the ratio of air supply and supply of biogas (AFR = Air to Fuel Ratio) meets the stoichiometric number. So a ratio control is needed on air supply and biogas supply, which can follow changes in biogas conditions in plastic bags and generator loads. For this reason, this paper presents an ECU (Electronic Control Unit) that can regulate the ratio of air supply to biogas supply by using a servo motor valve, which is commanded by a control signal from the ECU. The resulting ECU prototype is equipped with a multi-input connector (to receive the signal output of CH4 methane gas sensor and the biogas supply pressure sensor), multi-output (control signal to the servo motor valve), and multi regulators to adjust the Set Point value for the methane gas content CH4, the value of the set point of the biogas supply pressure and to tune the value of the proportional gain control (KP). The results of the ECU performance test by trial and error by giving a dummy input signal (analogy to the signal output of methane gas sensor and the analog of the pressure sensor output signal in the form of an electric voltage generated from the signal generator) can drive the servo motor, valve air supply, and servo motor, valve supply biogas. Accordance with the gain control input from the regulator.
Automated lighting design in the classroom I Putu Eka Widya Pratama; Totok Soehartanto; Daniel Dany Ari Wibowo; Nabiilah Aziizah Tjandra; Mochammad Nizar
Bulletin of Electrical Engineering and Informatics Vol 13, No 1: February 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i1.6384

Abstract

Lamp automation is utilized to adjust the lighting in the classroom by adjusting to the level of sunlight intensity outside the classroom. The light intensity will be adjusted to the utilization of lights as indicated by the need to enlighten a room. Therefore, this research aims to depict the design of a light intensity measurement system using a BH1750 sensor that will be carried out to measure the intensity of sunlight in units of light (lux). The signal from the sensor will be transmitted to a mini pc which functions to process measurement data and display it on the graphical user interface (GUI). As a result, the sensor will instruct the dimmer as an actuator to control the classroom lights according to the lighting from the sun. This system is already installed in the classroom and can save energy around 35 kWh a year.
Co-Authors Agung Dwi Sulaksono Arief Abdurrakhman Candrika Widiartanti Yuwono Daniel Dany Ari Wibowo Dewinta Ria Wardhani Dimas Prasetyo Oetomo Dwi Nur Fitriyanah Dwi Oktavianto Wahyu Nugroho Gunawan Nugroho Hamidah, Nur Laila Heri Joestiono I Putu Eka Widya Pratama Ika Nurina Rachmawati Jamal Fikri Tanaya Mochammad Nizar Nabiilah Aziizah Tjandra Nabiilah Azizah Tjandra Nugroho, Dwi Oktavianto Wahyu Purwadi Agus Darwito Putri Yeni Aisyah Rahmat Tri widodo Rico Pardona Pardosi Riski Fitra Finazis Roekmono Roekmono Ronny Dwi Noriyati Ronny Dwi Noryati Rony Dwi Noriyati Safira Firdaus Mujiyanti Sarwono Sarwono Tahta Anugrah Wibowo Tahta Anugrah Wibowo Tutug Dhanardono