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Increasing efficiency of a 33 MW OTEC in Indonesia using flat-plate solar collector for the seawater heater Setiawan, Iwan Rohman; Purnama, Irwan; Halim, Abdul
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 8, No 1 (2017)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6603.048 KB) | DOI: 10.14203/j.mev.2017.v8.33-39

Abstract

This paper presents a design concept of Ocean Thermal Energy Conversion (OTEC) plant built in Mamuju, West Sulawesi, with 33 MWe and 7.1% of the power capacity and efficiency, respectively. The generated electrical power and the efficiency of OTEC plant are enhanced by a simulation of a number of derived formulas. Enhancement of efficiency is performed by increasing the temperature of the warm seawater toward the evaporator from 26ËšC up to 33.5ËšC using a flat-plate solar collector. The simulation results show that by increasing these a water temperature up to 33.5ËšC, the generated power will increase up to 144.155 MWe with the OTEC efficiency up to 9.54%, respectively. The required area of flat-plate solar collector to achieve the results is around 6.023 x 106 m2.
Increasing efficiency of a 33 MW OTEC in Indonesia using flat-plate solar collector for the seawater heater Iwan Rohman Setiawan; Irwan Purnama; Abdul Halim
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 8, No 1 (2017)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2017.v8.33-39

Abstract

This paper presents a design concept of Ocean Thermal Energy Conversion (OTEC) plant built in Mamuju, West Sulawesi, with 33 MWe and 7.1% of the power capacity and efficiency, respectively. The generated electrical power and the efficiency of OTEC plant are enhanced by a simulation of a number of derived formulas. Enhancement of efficiency is performed by increasing the temperature of the warm seawater toward the evaporator from 26˚C up to 33.5˚C using a flat-plate solar collector. The simulation results show that by increasing these a water temperature up to 33.5˚C, the generated power will increase up to 144.155 MWe with the OTEC efficiency up to 9.54%, respectively. The required area of flat-plate solar collector to achieve the results is around 6.023 x 106 m2.
The Effect of Misalignment to Vibration, Electric Current and Shaft Rotation Speed on The Coupling Transmision Romiyadi Romiyadi; Purnama Irwan
Jurnal Teknik Mesin (JTM) Vol 10, No 2 (2020)
Publisher : LP2M - Institut Teknologi Padang

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

Abstract

Coupling is one of the components are widely used in various industries. Coupling is widely used as a power transfer transmission. Coupling have a long life time, it mean coupling was damage if out of the maintenance. The one factor is misalignment. This study aim to determine the effect of misalignment on the coupling transmission to vibration, electric current and shaft rotation speed. In this study, was done alignment process with variations of misalignment on the coupling transmission and was done measurement value of vibration,  electric current and shaft rotation speed. The study results show that the changed of misalignment would give a positive impact to vibration and electric current. For the effect misalignment to shaft rotation speed, the study results show that the changed of misalignment would give a negative impact to shaft rotation speed.
Prototipe Pemantauan Tetes Cairan Infus Berbasis IoT Terkoneksi Perangkat Android Indra Sucipta; Joni Welman Simatupang; Carolus Kaswandi; Irwan Purnama
Jurnal Teknologi Elektro Vol 12, No 3 (2021)
Publisher : Electrical Engineering, Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jte.2021.v12i3.003

Abstract

Setiap beberapa waktu perawat melakukan pemantauan tetes cairan infus dengan manual secara langsung. Bahkan, saat cairan infus akan habis, keluarga pasien harus memanggil perawat untuk melakukan penggantian cairan infus. Hal ini bisa menyebabkan terlambatnya penanganan terhadap pasien karena keterbatasan waktu. Oleh sebab itu, dibutuhkan sebuah alat pemantauan tetes cairan infus yang dapat memberikan notifikasi otomatis bahwa cairan infus akan habis. Artikel ini menjelaskan tentang implementasi alat pemantauan tetes cairan infus berbasis IoT yang terhubung dengan perangkat android. Prototipe ini menggunakan sensor Optocoupler sebagai pendeteksi adanya tetes cairan infus, Motor Servo SG90 untuk menekuk selang infus, Mikrokontroler ESP32 sebagai pengendali. Komunikasi perangkat keras dengan perangkat android menggunakan server lokal sehingga harus menggunakan Hotspot WiFi yang sama. Data yang dikirimkan dari perangkat android akan tersimpan ke database kemudian diakses oleh ESP32 sehingga menjalankan sensor dan motor servo. Pada android application terdapat informasi kondisi tetes cairan infus yang sudah dikonversi menjadi persentase sisa cairan infus. Hasil eksperimen menunjukkan bahwa prototipe dapat melakukan pengaturan tetes cairan infus per menit sesuai dengan yang diinginkan dan android application dapat menampilkan status dan mengirimkan notifikasi secara akurat. Sebagai kesimpulan dari hasil pengukuran, rata – rata rasio persentase yang dicapai dalam pengujian mencapai 70 % dengan rata – rata error sebesar 1,46 %.
The Effect of Misalignment to Vibration, Electric Current and Shaft Rotation Speed on Gear Transmission Romiyadi Nawir; Yudi Dwianda; Adi Febrianton; Purnama Irwan
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 66 No 1 (2022): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (791.346 KB) | DOI: 10.36842/jomase.v66i1.278

Abstract

Gear is a rotating machine that is widely used as a power transfer transmission in many industries. Gear has a long life times. However, the gears can be damaged due to many factors such as out of the maintenance, which one factor of misalignment. This study aim is to determine the effect of misalignment on the gear transmission to vibration, electric current and shaft rotation speed. In this study, was done alignment process with variations of misalignment on the gear transmission alignment kit and was done measurement value of vibration, electric current and shaft rotation speed. The study results show the greater the misalignment, the greater the vibration that occurs either radially or axially for all conditions measured. The shaft rotation was slower with the greater misalignment. The misalignment can affect the decrease in the rotation speed of the shaft. Therefore, it can reduce the efficiency for power transmission of engine.
Development of Hot Air Dryer Conveyor for Automotive Tampo Printing Parts Ali Rospawan; Joni Welman Simatupang; Irwan Purnama
Green Intelligent Systems and Applications Vol. 2 Iss. 1 (2022)
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (665.233 KB) | DOI: 10.53623/gisa.v2i1.69

Abstract

This paper presents the development of a hot air dryer conveyor for the automotive industry in the tampo printing part process. The research started by designing and creating the actual device that is ready to use and be implemented in the industry. The method provides the detail of the drying chamber, hot air dryer, and its mathematical model. The chosen hot air dryer is Suiden SHD-9F II and is operated on the factory default setting of auto-tuning mode. The performance evaluation studies the indicator performance of hot air dryer for the chosen size of drying chamber, the robustness of the system against fluctuating environmental air change rate, the ducting capacity, and the damper opening value estimation performance. The result of this system is working well at specification requirement of air change rate from 15 to 21 at 80% of its maximum capacity for error compensation and its already being successfully implemented.
The Effect of Misalignment to Vibration, Electric Current and Shaft Rotation Speed on The Coupling Transmision Romiyadi Romiyadi; Purnama Irwan
Jurnal Teknik Mesin Vol 10 No 2 (2020): Jurnal Teknik Mesin Vol.10 No.2 October 2020
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (32.186 KB) | DOI: 10.21063/jtm.2020.v10.i2.73-78

Abstract

Coupling is one of the components are widely used in various industries. Coupling is widely used as a power transfer transmission. Coupling have a long life time, it mean coupling was damage if out of the maintenance. The one factor is misalignment. This study aim to determine the effect of misalignment on the coupling transmission to vibration, electric current and shaft rotation speed. In this study, was done alignment process with variations of misalignment on the coupling transmission and was done measurement value of vibration, electric current and shaft rotation speed. The study results show that the changed of misalignment would give a positive impact to vibration and electric current. For the effect misalignment to shaft rotation speed, the study results show that the changed of misalignment would give a negative impact to shaft rotation speed.
Design and Manufacturing Motorized Trike Drift Using 110 cc Suzuki Jet Cooled Gasoline Engine Romiyadi; Adi Febrianton; Purnama Irwan
Jurnal Teknik Mesin Vol 11 No 1 (2021): Jurnal Teknik Mesin Vol.11 No.1 April 2021
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2021.v11.i1.95-100

Abstract

Motorized trike drift is a unique means of transportation that is adapted from a bicycle with 3 wheels, 2 wheels at the rear and 1 wheel at the front for steering control. The purpose of the study was to design and manufacture of motorized trike drift  using gasoline engine Suzuki Jet Cooled 110 cc as a power source. From the process of designing and manufacturing, has produced a motorized trike drift using  gasoline engine Suzuki Jet Cooled 110 cc as a power source. The transmission system used is a chain and sprocket. From the test results, the speed of motorized trike drift can reach 40 km /hour, but for convenience, the speed limit is 20-25 km / hour. For fuel use, 1 litre of fuel can be used within 30 minutes or within a distance of 15-20 km.
Design and Manufacture of Elephant Grass and Palm Frond Chopping Machines Romiyadi; Yudi Dwianda; Adi Febrianton; Purnama Irwan
Jurnal Teknik Mesin Vol 12 No 2 (2022): Jurnal Teknik Mesin Vol.12 No.2 October 2022
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2022.v12.i2.92-97

Abstract

Elephant grass and palm frond chopping machines is a machine used to chop elephant grass and palm fronds for animal feed. The purpose of the study is to design and manufacture a machine used for animal feed. This machine is designed and manufactured to chop elephant grass and palm fronds. Based on the results of the design and manufacture, a machine for chopping elephant grass and palm fronds for animal feed has been designed and manufactured. This machine uses a gasoline motor with a capacity of 5.5 HP. While the transmission system used is a pulley and belt transmission system. Based on the test results, the elephant grass and palm frond chopping machine can operate and function properly. The test results also show that the volume of chopped elephant grass is greater than the volume of chopped palm fronds. While the results of chopped elephant grass are better than the results of chopped palm fronds
Sistem Penerangan Jalan Umum Bertenaga Surya Rahmat Ihsani Yuskar; Anggar Rusdinar; Irwan Purnama
eProceedings of Engineering Vol 5, No 3 (2018): Desember 2018
Publisher : eProceedings of Engineering

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

Abstract

Abstrak Panel Fotovoltaik (PV) mampu mengolah masukkan berupa temperatur dan iradiasi matahari menjadi keluaran daya yang diinginkan. Panel PV bisa dimanfaatkan sebagai sumber energi sistem penerangan jalan umum. Pada sistem penerangan jalan umum penggunaan panel surya sangat berpengaruh terhadap cuaca. Sistem tersebut diterapkan pada jalan yang minim akan penerangan pada malam hari. Penelitian ini juga bertujuan untuk merancang sistem penerangan jalan umum berbasis konverter DC/DC Single Ended Primary Inductor Converter(SEPIC) yang terintegrasi dengan Maximum Power Point Tracking (MPPT) serta Pulse Width Modulation (PWM) dan merancang rangkaian lampu LED agar dapat bekerja secara otomatis pada saat malam hari dan siang hari. Penelitian yang dilakukan adalah dengan menerapkan algoritma MPPT dan PWM. Pada penyelesaian tugas akhir ini, hasil pengujian saat siang hari panel PV mengisi baterai aki sampai terisi penuh, dibutuhkan waktu pengisian baterai selama 7,51 jam. Sedangkan saat malam hari baterai mampu menyalakan lampu LED selama 45 menit. Setelah diteliti lebih lanjut efisiensi yang diperoleh MPPT sebesar 0,95%, sedangkan efisiensi yang diperoleh PWM sebesar 39,34%. Kata Kunci: Pulse Width Modulation, Maximum Power Point Tracking, Single Ended Primary Inductor Converter, Panel Fotovoltaik. Abstract Photovoltaic Panel (PV) is able to process various temperatures and solar irradiation into the desired purchasing power. PV panels can be used as public street lighting energy. In the general street lighting system the use of solar panels is very striking against the weather. The system is applied to minimal roads that will illuminate at night. The research carried out is by applying the Maximum Power Point Tracking (MPPT) algorithm and Pulse Width Modulation (PWM). This is one of two DC End DC Inductors (SEPIC) DC / DC Inductors that are connected to MPPT and PWM and LED lights so that they can work directly in the day and day. At this time, the purchase result during the day the PV panel fills the battery until it is fully charged, it takes a battery charging time of 7.51 hours. Whereas when the holiday battery LED lights for 45 minutes. After further research, the MPPT was 0.95%, while the efficiency obtained by PWM was 39.34%. Keywords: Pulse Width Modulation, Maximum Power Point Tracking, Specific Single Inductor Inductor Converter, Photovoltaic Panel.
Co-Authors A Halim Aam Muharam Abdul Halim Adi Febrianton Adi Febrianton Adi Febrianton adi, Adi Febrianton Agung Mahardiono, Novan Akbari, Devan Rizki Amin Amin Andi Herwati Angga Rusdinar Augustina Asih Rumanti Baihaqi, Muhammad Yeza Bandiyah Sri Aprillia Brahmantya Aji Pramudita Carolus Kaswandi Clara Lavita Angelina Danu Dwi Sanjoyo Desri Kristina Silalahi Dewi, Khania Putri Kusuma Dwianda, Yudi Eka Rakhman Priandana Febrianton, Adi Galih Ryan Bagastama Gustyan Sukmara, Reza Haerani, nining Haerul, Haerul Halawa, Edmun Hazra Yuvendius I Gede Putu Oka Indra Wijaya Ilma Mufidah Indah Purnama Puilltri Indah Purnama Putri Indra Sucipta Irdansyah, Irdansyah Ismail Maulana Juned Ivonita Simbolon, Artha Iwan Rohman Setiawan Jangkung Raharjo Jonathan, Martuagus Joni Welman Simatupang Kemal Muhammad Rais Kharisma Bani Adam Khwarizmi, Ahmad Faishal Mahersa, Radya Putra Mariel, Reinald Marza Ihsan Marzuki, Marza Ihsan Masriyanto, Masriyanto Meilikiano, Yoshua Mohamad Ramdhani Muhammad Afan Aljafar Muhammad Arifin Muhammad Fadil Muhammad Ridho Rosa Muhammad Ridwan Muhammad Zakiyullah Romdlony Munajat, Muhammad Mustika, Widya Sinta Nadiya, Ulfah Noval Hadriawan Novi Prihatiningrum Nugraha, Alfiqri Radifa Parameswari, Sang Dara Porman Pangaribuan Purnama Putri, Indah Putri, Indah Purnama Putri, Indah Purnama Rahman , M. Aulia Rahmat Ihsani Yuskar Ramaddan, Arya Imansyah Rashad Abul Khayr Raudhah Nurul Auliya Rhomanzah, Donny Ridlho Khoirul Fachri Risna Septisari Rizqi, Febrian Maulana Romiyadi Rospawan, Ali Samsuri, Faisal Satria Yogsakti, Don Bosko Sepfitrah Setiawan, Iwan Rohman Setiyadi, Surawan Sihotang, Psalmen Sudarmono Sasmono Tristan Daru , Alexander Vincent Vincent, Vincent Widiati, Bibiana Rini Yudi Dwianda Yudi Dwianda Yusuf Nur Wijayanto Yusuf Nur Wijayanto