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All Journal IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series Bulletin of Electrical Engineering and Informatics Jurnal Pengabdian dan Pengembangan Masyarakat Sewagati
Raditya, Murry
Departemen Teknik Instrumentasi, Fakultas Vokasi, Institut Teknologi Sepuluh Nopember
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Mechanical Engineering Public Health Social Sciences Other

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Monitoring and Analysis of Single Tube Temperature Distribution in Heat Exchanger Simulator Using TPA 81 Thermopile Array Murry Raditya; Gunawan Nugroho; Abdurrahman Rahyang Tutuko; Halen Dinata Atmaja
IPTEK The Journal of Engineering Vol 6, No 1 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v6i2.a7246

Abstract

The Energy and Environmental Engineering Laboratory had a heat exchanger simulator which was used to determine the temperature changes with respect to time due to air velocity. This simulator used tubes which were used to find out the temperature change with time. The working principle of this simulator was to monitor changes in temperature on the tube that had been preheated and then cooled using a fan contained in the simulator. This study performed temperature measurements using a TPA81 thermal array sensor. We chose this sensor because it could measure the temperature without touching the object and had 8 pixels for image measurement. This was because the process of reducing the temperature of the tube becomes purely caused by the fan and not from the outside environment. The results obtained from this study were visualization of temperature distribution using the Thermal Array TPA81 sensor, having a linearity value of 0.034%, a precision value of the instrument of 98.1%, an accuracy value of 0.285%, and error value of 0.154 (W/m2K). For the analysis of temperature distribution, it was concluded that the value of the temperature did not affect the value h, because the value of h (the coefficient of heat transfer convection) is distributed with time.
Design and Modelling of Ballscrew Linear Guide Actuator for Earthquake Shaking Table (EST) Based on Neural Network Halimatus Sa’diyah; Purwadi Agus Darwito; Tavio Tavio; Murry Raditya
IPTEK Journal of Proceedings Series No 6 (2020): 6th International Seminar on Science and Technology 2020 (ISST 2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i6.11125

Abstract

Earthquake Shaking Table (EST) is a device which can simulate an earthquake motion. This device is used to test the strength of a building structure against an earthquake motions before it’s actually made. EST uses a variety of actuators one of them is ball-screw linear guide actuator. The EST used in this project is a bi-axial type which uses 2 linear actuators to simulate the x-axis and y-axis movement of earthquake, each of them used bipolar stepper motor as the main rotary-actuating device. This project models the linear guide actuator using backpropagation neural-network algorithm. The model is built with empirical method using datas taken from the real behavior of both linear actuators. The datas include acceleration, displacement, and velocity of both actuators and they are used to train the neural network using backpropagation with Levenberg-Marquadt method. Simulation is done using Simulink and the results show that model is able to produces nearly same exact movement with the real hardware with error approximately 0,214 % and 0,685% respectively for both actuators.
Rancang Bangun Sistem Pengolah Air Bersih Standar WHO dan Kemenkes Bagi Warga Dusun Sinan - Desa Gawerejo - Kecamatan Karangbinangun - Kabupaten Lamongan Jawa Timur Purwadi Agus Darwito; Halimatus Sa’diyah; Murry Raditya
Jurnal Pengabdian dan Pengembangan Masyarakat Vol 2, No 1 (2019): MAY
Publisher : Pengabdian dan Pengembangan Masyarakat Sekolah Vokasi UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jp2m.48346

Abstract

Sinan Village is located in Karangbinangun Subdistrict, Lamongan city, which is experiencing a shortage of clean water. The main source of water for the people in that village is originated from river water of Bengawan Solo branches which is mixed with pond water and is collected in a pond. The results of the pH, turbidity and TDS tests that have been carried out show that the Bengawan Solo water does not meet WHO's clean water standards and the standard from Ministry of Health. In this study, the design of the river and pond water filtration control system in the reservoir was carried out. The designed filtration system consists of the deposition stage and filtering stage. Deposition stage is carried out by using alum as a purifying medium and aims to simplify the screening phase. While the screening stage is carried out using stone, sand, charcoal and palm fiber which aims to increase the pH value and reduce the value of turbidity and TDS. The system is designed in a modular manner between each filtration stage to fascillitate the maintenance process of the system and flushing the remaining deposits produced by the filtration process. Testing result of this system is done by varying the variables of volume and height of sand used and it is known that the difference in sand volume used has a significant effect on the levels of TDS, Turbidity, and pH of the resulting clean water.
Pembuatan Teknologi Tepat Guna Lampu Tenaga Surya di Dusun Badu, Desa Wanar, Kecamatan Pucuk, Lamongan Fitriyanah, Dwi Nur; Raditya, Murry; Aisyah, Putri Yeni; Radhy, Ahmad; Iswahyudi, Anggi Pradhita; Asrifatin, Syarifah Ambarani
Sewagati Vol 8 No 2 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i2.802

Abstract

Dusun Badu terletak di Desa Wanar, Kecamatan Pucuk, Kabupaten Lamongan, Jawa Timur. Penerangan jalan desa di Dusun Badu masih menggunakan listrik PLN dan jumlahnya sedikit. Kurangnya penerangan sepanjang jalan desa, dapat mengurangi produktivitas warga ketika di malam hari. Selain itu, pengetahuan warga terhadap teknologi tepat guna khususnya panel surya juga kurang. Berangkat dari keluhan mitra terhadap kurangnya pengetahuan warga terhadap panel surya, maka diperlukan pelatihan pembuatan teknologi tepat guna lampu tenaga surya supaya dapat mengembangkan lampu tenaga surya di Dusun Badu. Warga dibekali bagaimana cara pembuatan lampu tenaga surya sampai bagaimana cara menyimpan energi listrik keluaran dari panel surya ke baterai supaya dapat dipergunakan untuk menerangi jalan desa di malam hari. Terdapat 2 titik pemasangan lampu tenaga surya di Desa Wanar. Diharapkan dari kegiatan ini, masyarakat desa dapat meningkatkan produktivitasnya di malam hari dan dapat dijadikan desa binaan teknologi tepat guna yang tepat sasaran.
Sistem Monitoring dan Kontrol Otomatis Terintegrasi IoT pada Vertical Crab House untuk Meningkatkan Potensi Hidup Kepiting Bakau di PT. Crab Crab Aquatic Mujiyanti, Safira Firdaus; Raditya, Murry; Nugroho, Dwi Oktavianto Wahyu; Darwito, Purwadi Agus; Septyaningrum, Erna; Zein, Muhammad Ikhsanuddin; Lokeswara, Rajendra; Rishwanda, Muhammad Akmal; Darmawan, Tiffany Rachmania; Rohid, Abdul; Nanta, Tepy Lindia
Sewagati Vol 8 No 3 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i3.914

Abstract

Budidaya kepiting bakau dengan Vertical Crab House menjadi alternatif pembesaran kepiting dengan lahan terbatas untuk memenuhi permintaan di perkotaan. Namun masih banyak resiko kematian kepiting bakau disebabkan proses pengendalian kualitas air masih manual dalam mengendalikan kualitas air sirkulasi. Hal ini membutuhkan tenaga manusia dan waktu ekstra untuk memastikan kualitas air sirkulasi sesuai dengan kondisi lingkungan pertumbuhan kepiting bakau. Ditambah lagi metode Vertical Crab House tidak dapat mengidentifikasi kondisi kualitas air secara tepat, tidak dapat mengecek kondisi kualitas air secara real-time, dan tidak dapat mengecek kondisi temperatur, salinitas, amonia, dan pH secara simultan. Kondisi lingkungan yang tidak sesuai dengan parameter dan tidak termonitor membuat resiko kematian kepiting bakau masih sangat tinggi sehingga menyebabkan pembudidaya mengalami kerugian yang cukup besar. Permasalahan tersebut menjadi dasar terciptanya sistem otomatisasi pengendalian kualitas air untuk mengoptimalkan proses budidaya kepiting bakau dengan metode Vertical Crab House. Proses pengendalian kualitas air tersebut dilakukan dengan memasang sensor, kontroler, dan aktuator yang diintegrasikan sehingga proses pengendalian kualitas air dapat berjalan terus-menerus untuk memastikan air yang tersirkulasi sesuai dengan lingkungan yang optimal bagi pertumbuhan kepiting bakau. Selain itu, kualitas air sirkulasi pada budidaya dapat dipantau secara real-time melalui aplikasi smartphone.
Wastewater monitoring system in the textile industry Raditya, Murry; Pratama, I Putu Eka Widya; Bagastyo, Arseto Yekti; Nurhayati, Ervin; Kalahari, Bintang
Bulletin of Electrical Engineering and Informatics Vol 13, No 5: October 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v13i5.7220

Abstract

Recently, a problem which often experienced by the Environmental Agency is to monitor the quality of industrial waste. The problem comes from manual monitoring of wastewater and the high cost of laboratory tests for each variable for the waste. This system is intended to develop a wastewater monitoring system considering the state of the environment and technology. This system uses 5 types of sensors to measure the quality of wastewater. The sensor will display measurement data both offline via liquid crystal display (LCD) and online via the website. For the pH sensor test, we obtained an error value approximately of 1.32% and accuracy of 98.68%. For the oxidation reduction potential (ORP) sensor test, we obtained an error value of 1.4% with 98.6% accuracy. We obtained an error value of 0.22% with 99.78% accuracy for the temperature sensor test. For the total dissolved solid (TDS) sensor test, we obtained an error value of 1.02% with 98.98% accuracy. The color sensor is validated using a spectrometer to measure the variation of color in remazol waste concentration. For the Client - Server communication test, the system has a delay of 2 seconds. One of the advantages of using a web server is the system has minimum network traffic.
Pembuatan Alat Monitoring Ph, Temperatur, Kelembaban, dan Pengeringan pada Proses Fermentasi Coklat Kakao Berbasis Android untuk Meningkatkan Nilai Jual Kakao PT. Perkebunan Nusantara, Sukogidri, Jember Pratama, I Putu Eka Widya; Umamah, Fyrdatul; Yemima, Hagai; Radhy, Ahmad; Mujiyanti, Safira Firdaus; Patrialova, Sevi Novendra; Raditya, Murry; Ashiddiqi, Muhammad Roy
Sewagati Vol 8 No 5 (2024)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v8i5.2199

Abstract

Proses fermentasi dan pengeringan merupakan faktor penting dalam pengolahan pasca panen biji kakao yang berpengaruh signifikan pada karakteristik akhir produk coklat berdasrkan standar mutu biji kakao SNI 2323-2008. Dengan adanya sistem monitoring fermentasi serta monitoring dan kontrol pengeringan, diharapkan dapat mengatasi masalah yang timbul selama proses fermentasi dan pengeringan yang berpotensi menurunkan kualitas biji kakao. Monitoring dilakukan dengan memenuhi parameter temperatur, Ph, dan kelembaban relative ruang. Tiga parameter tersebut bertujuan untuk memenuhi standar mutu biji kakao dengan temperetur ideal 30-45oC, memiliki Ph 4-4,5, dan kelembaban relatif ruang simpan 75%. Sementara, monitoring dan kontrol dilakukan pada parameter suhu pengeringan dengan suhu optimal berada pada maksimal 55oC. Berdasarkan hal tersebut perlu dilakukan monitoring pada proses fermentasi dan kontrol pengeringan kakao guna meningkatkan mutu biji kakao. Kinerja sistem monitoring pH menggunakan sensor pH SKU SEN0169 didapatkan nilai akurasi 97,98% dengan error 2,02%. Pada monitoring kelembaban menggunakan sensor SHT20 didapatkan nilai akurasi 99,78% dengan error 0,22%. Selain itu, monitoring temperatur menggunakan sensor thermocouple K type menghasilkan nilai akurasi 98,23% dengan error 1,77%. Sementara itu, pada proses pengeringan, sensor SHT20 sebagai sensor suhu ruang pengering didapatkan nilai akurasi 99,82% dengan error 0,2%. Sensor DS18B20 sebagai sensor biji kakao menghasilkan nilai akurasi 99,73% dengan error 0,3%.
Co-Authors Abdurrahman Rahyang Tutuko Aisyah, Putri Yeni Ashiddiqi, Muhammad Roy Asrifatin, Syarifah Ambarani Bagastyo, Arseto Yekti Darmawan, Tiffany Rachmania Dwi Nur Fitriyanah Ervin Nurhayati, Ervin Gunawan Nugroho Halen Dinata Atmaja Halimatus Sa’diyah Halimatus Sa’diyah Iswahyudi, Anggi Pradhita Kalahari, Bintang Lokeswara, Rajendra Mujiyanti, Safira Firdaus Nanta, Tepy Lindia Nugroho, Dwi Oktavianto Wahyu Patrialova, Sevi Novendra Pratama, I Putu Eka Widya Purwadi Agus Darwito Purwadi Agus Darwito Purwadi Agus Darwito Radhy, Ahmad Rishwanda, Muhammad Akmal Rohid, Abdul Septyaningrum, Erna Tavio, Tavio Umamah, Fyrdatul Yemima, Hagai Zein, Muhammad Ikhsanuddin