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Sentot Novianto, Sentot
Universitas Indonesia
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TERMOELEKTRIK GENERATOR DAN FUNGSINYA Gibran, Muhammad Alfian; Novianto, Sentot; Supriyadi, Supriyadi; Bhikuning, Annisa
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 9, Nomor 2, Juli 2024
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v9i2.20109

Abstract

This article summarizes and reviews various journals on the performance, applications, and development of Thermoelectric Generators (TEG) that convert temperature differences into electrical energy through the Seebeck effect. The aim of this review is to provide a comprehensive overview of advancements in TEG technology and its potential in enhancing energy efficiency and renewable energy utilization. The methodology includes a literature review of research methods applied in previous studies, including simulations and experiments aimed at improving TEG efficiency. Some studies also integrate TEG with phase change materials (PCM) to harvest energy from ambient temperature fluctuations. The review findings indicate that innovations in TEG materials and design can significantly improve the efficiency and sustainability of this technology. Additionally, this article discusses the applications of TEG in various fields, such as waste heat recovery from industrial processes and vehicles, as well as in wearable devices to harvest energy from body heat. A table presenting research methods and comparisons of previous studies is included to offer a thorough view of current developments in TEG technology. The conclusion of this review is that TEG has significant potential as a solution for waste heat recovery, wearable device applications, and as an efficient renewable energy source. The article also provides recommendations for future research, including the development of new materials and more optimal designs, to address existing challenges and maximize the potential of TEG.
PERANCANGAN PEMBUATAN DAN PENGUJIAN PROTOTIPE PEMINDAH BARANG DENGAN SISTEM PNEUMATIK YANG DIKONTROL MENGGUNAKAN MIKRO KONTROL ARDUINO MEGA Muharram, Alief; Riyanto , FX Sugeng; Muslim, Ahmad Bukhari; Sukarnoto, Tono; Komara, Rangga; Annas, M. Sjahrul; Supriyadi, Supriyadi; Adinegoro, Faisal; Muhammad Ihram Maulana1, Muhammad Ihram; Putri, Larasati Rizky; Dewi, Linggar Candra; Rafi, Muhammad Ali; Novianto, Sentot
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Volume 10, Nomor 1, Januari 2025
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v10i1.21805

Abstract

Pneumatik Otomasi Industri biasanya terdiri atas 3 metode yaitu: pneumatik manual/murni, pneumatik elektro dan pneumatik PLC (Programable Logic Controller). Penelitian ini bertujuan untuk merancang, membuat dan menguji prototipe alat pneumatik berbasis mikro kontroler Arduino Mega yang diterapkan untuk pemindah barang. Metode yang digunakan dalam penelitian ini adalah penggunaan mikro kontroler Arduino Mega untuk mengendalikan pergerakan pneumatik yang dirangkaikan dengan pemindah barang berupa konveyor, roller, motor, dan sensor-sensor pada sistem yang terintegrasi pada prototipe yang dibuat. Hasil dari penelitian/inovasi yang dibuat dalam bentuk prototipe ini adalah keberhasilan penggunaan mikro kontroler Arduino Mega yang dapat digunakan sebagai sistem kendali pneumatik otomasi dengan tekanan kerja 4 s/d 5 bar, kecepatan conveyor belt 6 cm/det, rata-rata massa benda kerja 55 gram dan sudut gravity roller 11,8 derajat dengan panjang 67 cm. Besar manfaat prototipe ini untuk pengembangan pendidikan, pelatihan kepada masyarakat atau industri dan juga penelitian yang berkelanjutan.
RANCANG BANGUN THERMOBATH UNTUK KALIBRASI SUHU DENGAN TERMOKOPEL TIPE-K MENGGUNAKAN REFRIGERAN HFC-134 Fadhil, Sayid Muhammad; Pandu, Yogatama Wishnu; Novianto, Sentot
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 8 No. 1 (2022)
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/ame.v8i1.5119

Abstract

Thermobath adalah alat laboratorium yang berisikan air ataupun cairan lainnya sebagai beban pendingin yang dapat mempertahankan temperatur tersebut agar tetap konstan dalam waktu tertentu. Dalam perancangan thermobath penulis menggunakan kompresor 1/6 PK, pipa tembaga ¼ inch, katup ekspansi berupa ball valve, refrigeran HFC-134, dan fluida berupa air dengan volume 2 Liter. Perancangan didasarkan akibat mesin pemanas atau pendingin pada perindustrian dan perusahaan masih banyak memakai refrigeran yang memiliki potensi kerusakan lapisan ozon, penggunaan gas refrigeran semakin banyak untuk menjalankan suatu kerja pada sistem kompresi uap. Alat kalibrasi thermobath menghasilkan panas yang sesuai dengan yang terbaca pada alat ukur dengan bantuan termokopel yang sudah terkalibrasi. Penggunaan termokopel tipe-K ini dirancang menggunakan modul Arduino Max 6675 sebagai safety control agar thermobath tidak melebihi temperatur yang sudah diatur. Uji coba thermobath dilakukan hingga temperatur fluida mencapai 12°C dan 5°C, dengan nilai rata-rata pressure gauge sebelum dan sudah katup ekspansi berturut-turut 2,8 MPa dan 0,4 MPa serta 3,1 MPa dan 0,35 MPa. Laju pendinginan pada temperatur 12°C membutuhkan waktu 35 menit sementara laju pendinginan temperatur 5°C didapatkan dalam waktu 60 menit, laju pendinginan temperatur 5°C lebih lama sekitar 5 menit dan memiliki selisih paling besar 14,32% untuk mencapai suhu 12°C. Nilai COPaktual tertinggi ada pada pengujian temperatur 12°C dengan nilai 1,9 dan penyerapan kalor evaporator sebesar 78,403 kJ, dibandingkan uji temperatur 5°C dengan nilai 1,5 dan kalor serap evaporator 68,570 kJ.
PELATIHAN DASAR KONTROL PENGGERAK MOTOR ROBOTIK UNTUK MENAMBAH SKILL OTOMASI DAN ROBOTIK DI PONDOK PESANTREN Novianto, Sentot; Supriyadi, Supriyadi; Rizky Putri, Larasati; Annas, M Sjahrul; Sukarnoto, Tono; Kartika Sari, Tyas; Mustajab, Alief Muharram; Siekelta, Timotius; Dwicahyo, Agus; Harliady, Mulus; Rafi, M Ali; Zulfikar, Zulfikar; Ciputra, Kristian
Kocenin Jurnal Pengabdian Kepada Masyarakat Vol. 5 No. 1 (2025): Juni 2025
Publisher : Konsorsium Cendekiawan Indonesia

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

Abstract

Kegiatan PKM ini memberikan pelatihan dasar kontrol penggerak motor robotika pada para guru di Pondok Pesantren Modern IKADI. Pelatihan ini akan memberikan wawasan, pengetahuan dan keterampilan bagi para guru untuk membuat sistem kontrol penggerak motor yang dapat difungsikan dalam robotika. Pelatihan menggabungkan teori dan praktek langsung. Materi pelatihan terdiri atas 70% praktek dan 30% teori, menggunakan modul robot dua roda, mikrokontroller, dan aplikasi Arduino. Peserta terdiri dari 9 guru Pondok Pesantren, dimana 85% dari guru tersebut belum pernah mengenal sistem kontrol. Hasil kegiatan PkM ini adalah peningkatan kemampuan skill para guru di Pondok Pesantren dari mulai menginstall software mikrokontrol, membuat coding program, merangkai wiring sensor dan mengeksekusi program yang dibuat. Diharapkan penambahan skill tersebut dapat diestafetkan kepada para santri Pondok Pesantren sehingga menambah pengetahuan dan kemampuan para santri.
Performance Evaluation of Ammonia Refrigeration Systems in a Texturizing Plant Cholik, Abdul; Ruhyat, Nanang; Novianto, Sentot
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i3.27476

Abstract

This study evaluates the performance of an ammonia refrigeration system used as a cooling medium in a texturizing plant. The analysis was conducted over a 10-day period, focusing on key performance indicators such as compressor work, condenser exhaust heat, refrigeration effect, mass flow rate, Coefficient of Performance (COP), and overall system efficiency. The data revealed that the system performed optimally on Day 5, achieving a peak efficiency of 91%, with compressor work at 304.1 kJ/kg and condenser exhaust heat at 1414.6 kJ/kg. In contrast, the lowest efficiency was recorded on Day 3, at 77%. The refrigeration effect reached its highest value of 491.3 kJ/kg on Day 3, highlighting efficient heat absorption despite lower overall system efficiency. On Day 4, the mass flow rate was 0.001049929 kg/s, with an actual COP of 1.39, while the ideal COP peaked on Day 10 at 1.69, reflecting the system’s theoretical maximum efficiency under optimal conditions. The study emphasizes the critical role of the condenser in the system’s performance. Optimizing the condenser’s operation by controlling temperature, pressure, and flow rates, alongside regular maintenance, significantly impacts system efficiency. The findings suggest that careful monitoring of operational parameters, including compressor work and refrigerant flow, can enhance the overall efficiency and reliability of ammonia refrigeration systems in industrial settings. This research provides practical insights into improving the cooling performance, reducing energy consumption, and ensuring consistent production quality in texturizing plants.
Performance Evaluation of a Condenser at a Combined Cycle Power Plant Using the LMTD Method Swardhamana, Putut Jaya; Ruhyat, Nanang; Novianto, Sentot
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 2 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i2.27450

Abstract

This study evaluates the performance of the condenser at the Cilegon Combined Cycle Power Plant (CCPP) using the Logarithmic Mean Temperature Difference (LMTD) method to measure the heat transfer rate. Routine maintenance carried out on the condenser in the form of cleaning the condenser water box and condenser tube from garbage and crust on the condenser tube wall. Currently, condenser maintenance follows a routine schedule that is tied to steam turbine maintenance, without taking actual condenser performance into account. This can lead to inefficiencies and unnecessary downtime. The goal of this research is to assess the heat transfer rate of the condenser before and after maintenance to judge its effectiveness. Data on temperature changes were gathered in June 2023, before maintenance, and again in July 2023, after an overhaul. The analysis shows that the heat transfer rate increased from 51,362,294.48 kcal/h to 127,246,219.7 kcal/h, while the LMTD value rose from 0.76°C to 1.86°C. Based on these results, the study suggests a new approach to maintenance that focuses on performance. Specifically, maintenance should be done when the heat transfer rate drops below 110,000,000 kcal/h. This approach will help ensure the condenser works at its best, improve the plant's overall efficiency, and prevent the need for unnecessary maintenance. By aligning maintenance with performance data, the plant can boost output while lowering costs and downtime.
Design and Analysis of a Vertical Axis Ocean Current Turbine Tunnel Using SolidWorks Computational Fluid Dynamics Gunawan, Hardi; Ruhyat, Nanang; Novianto, Sentot
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol 6, No 1 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v6i1.27652

Abstract

The development of renewable energy in the marine power generation sector presents a promising approach to producing electrical energy in a sustainable and environmentally friendly manner. Indonesia, with its vast oceanic territory, holds significant potential for harnessing marine energy. However, the relatively slow speed of ocean currents in the region, typically ranging from 0.1 m/s to 1.5 m/s, poses a challenge to the efficiency of marine power generation. To overcome this limitation, this research focuses on the design and analysis of a vertical-axis ocean current turbine tunnel aimed at increasing the speed of ocean currents, thereby enhancing the overall efficiency of energy production. The study combines a thorough literature review with experimental research methods, utilizing SolidWorks Computational Fluid Dynamics (CFD) software to simulate the tunnel's impact on ocean current velocity. The simulations reveal that the tunnel construction significantly boosts current speeds, increasing them from 1.0 m/s to 1.7 m/s, and from 1.5 m/s to 2.6 m/s. This increase in velocity directly translates to higher kinetic energy available for conversion into electrical power by the turbine. Moreover, the study shows that the tunnel construction contributes to a more uniform flow of ocean currents, as evidenced by the Reynolds numbers obtained—100.250 at a current speed of 1.0 m/s and 150.375 at 1.5 m/s. These values, being below 2000, indicate laminar flow conditions within the tunnel, which are beneficial for optimizing turbine performance by reducing turbulence and ensuring a stable energy output. The findings underscore the effectiveness of the tunnel design in improving the efficiency of vertical-axis ocean current turbines, making it a viable solution for enhancing renewable energy production in regions with low ocean current speeds.
Co-Authors Adinegoro, Faisal Agus S. Pamitran, Agus S. Ahmad Bukhari Muslim Annas, M Sjahrul Annas, M. Sjahrul Annisa Bhikuning Cholik, Abdul Ciputra, Kristian Dewi, Linggar Candra Dwicahyo, Agus Engkos A. Kosasih, Engkos A. Fadhil, Sayid Muhammad Gibran, Muhammad Alfian Hardi Gunawan Harliady, Mulus Kartika Sari, Tyas Komara, Rangga Larasati Rizky Putri Muhammad Idrus Alhamid, Muhammad Idrus Muhammad Ihram Maulana1, Muhammad Ihram Muharram, Alief Mustajab, Alief Muharram Nanang Ruhyat Normah Ghazali, Normah Pandu, Yogatama Wishnu Qais Abid Yousif, Qais RA. Koestoer Rafi, M Ali Rafi, Muhammad Ali Riyanto , FX Sugeng Robiah Ahmad, Robiah Siekelta, Timotius Supriyadi Supriyadi Swardhamana, Putut Jaya Tono Sukarnoto, Tono Zulfikar Zulfikar