Article Per Year (5 Year)
p-Index From 2021 - 2026
0.92
P-Index
This Author published in this journals
All Journal REKAYASA Communications in Science and Technology Mekanika: Majalah Ilmiah Mekanika SEMAR Journal of Electrical, Electronic, Information, and Communication Technology (JEEICT)
Danardono Dwi Prija Tjahjana, Dominicus
Departemen Teknik Mesin, Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Physics Social Sciences

Published : 6 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search

 1 
The renewable energy research contribution of Tanzania: A review Shame, Buruhan Haji; Ubaidillah; Tjahjana, Dominicus Danardono Dwi Prija; Arifin, Zainal; Aziz, Muhammad; Harwijayanti, Widyanita; Haji, Mohammed M.
Communications in Science and Technology Vol 9 No 1 (2024)
Publisher : Komunitas Ilmuwan dan Profesional Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21924/cst.9.1.2024.1348

Abstract

The central objectives of this study are to locate existing research on renewable energy, examine the energy policy of Tanzania, assess bibliometric factors, determine the direction of the current research, and comprehend unexplored research topics. This exploration focuses on a bibliometric-based study using computer-assisted software tools known as VOS viewer and RStudio in analyzing the Scopus data retrieved package for the key phrase of "Renewable energy" in the article titles published from 2002 to 2022. A total of 661 publications (which is only 0.45% and 6.3% of the global and continental publications from Africa respectively) were analysed after refining using different bibliometric criteria like study site, type of document, publication stage, language used in the document, and publication time interval. The results shows that Energy fuels, engineering, technology, environmental sciences, ecology, and business economics are the most frequently studied fields. Also, from a total of 661 publications, only 32 documents were published from Tanzania for 20 years from 2022 which is less than 2 publication/year. This study concludes that there is a notable lack of research output from Tanzania in this critical field. This gap underscores the need for greater investment in renewable energy research and development within the country, as well as targeted efforts to build research capacity and foster collaboration among academia, government, and industry stakeholders.
Experimental Comparison of Double-Stage Runner Profiles in Gravitational Water Vortex Turbines for Improved Performance Risdiyanto, Gunawan; Septiyanto, Muhamad Dwi; Hadi, Syamsul; Tjahjana, Dominicus Danardono Dwi Prija; Budiana, Eko Prasetya; Andriyanto, Solikin
Rekayasa Vol 18, No 3: Desember, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i3.30683

Abstract

Gravity Water Vortex Turbines (GWVTs) are a new category of turbines used in micro-hydro power plants (MHPs). GWVTs can be used to optimize existing water flow potential, aerate water bodies, and maintain ecosystem integrity. The basic idea for this development stems from previous research showing that GWVTs with conical basins exhibit different flow velocity distributions at different locations. To exploit this potential, experimental analysis was conducted using a two-stage configuration with varying runner profiles and different flow rate conditions. A low-speed water tunnel with a conical basin was used to generate the vortex flow. Furthermore, the performance of the double-stage GWVT was compared with that of a single-runner GWVT in terms of power conversion. The study used several turbine configurations profiles, including Savonius and Flat with Curved. The findings measured torque, mechanical power conversion, and rotational speed. The GWVT performance results were evaluated using comparison-staging and inter-staging methods to determine the best performance of each turbine in generating power. The results showed that the Savonius blade profile on a single-runner GWVT installed in the lower stage position was superior in terms of power conversion. The best power generated is 53.7 Watts, and the efficiency is 52.3% at a flow rate of 9.1 L/s. The installation of two similar runners on a double-stage GWVT yields better power conversion than the installation of two different runners. A flat with Curved runners installed for the lower and upper stages on a double-stage GWVT shows the highest results of 56.7 Watts and 1.2 Watts. So, it can be concluded that the power conversion of a double-stage GWVT is superior to that of a single-runner GWVT.
Performance of Vortex Turbines with Two-Stage Radial-Offset Runners Fathurrohman, Aulia; Septiyanto, Muhamad Dwi; Andriyanto, Solikin; Prasetyo, Ari; Tjahjana, Dominicus Danardono Dwi Prija; Hadi, Syamsul
Mekanika: Majalah Ilmiah Mekanika Vol 24, No 2 (2025): MEKANIKA : Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v24i2.105045

Abstract

Gravitational water vortex turbines are environmentally friendly power generation systems that convert the energy of vortex water flow into mechanical energy using turbine runners. This study aims to analyze the effect of a two-stage configuration with varied radial runner positions and water discharge on turbine performance. Experiments were conducted using a low-speed water channel with a conical basin to generate vortex flow. Savonius-type runners were installed vertically in two stages with radial positions of 0.5, 0.6, and 0.7 relative to the basin radius. Each configuration was tested at several water discharge rates. The primary parameter measured was mechanical power output, which was obtained using torque sensors and rotational speed meters to provide precise data. Results showed that the radial position 0.5 produced the best performance, generating 12.28 watts in the first and 16.68 watts in the second. Runner position and water discharge directly influenced vortex stability and energy conversion efficiency. The two-stage configuration with optimal runner placement significantly improved system efficiency. These findings suggest that the two-stage vortex turbine design is promising for small-scale power generation in remote areas.
PENERAPAN TEKNOLOGI BIOPORI UNTUK MENINGKATKAN KETERSEDIAN AIR TANAH SERTA MENGURANGI SAMPAH ORGANIK DI DESA PURON SUKOHARJO Arifin, Zainal; Tjahjana, Dominicus Danardono Dwi Prija; Rachmanto, Rendy Adhi; Suyitno, Suyitno; Prasetyo, Singgih Dwi; Hadi, Syamsul
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 9, No 2 (2020): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v9i2.43408

Abstract

Ketersediaan air tanah di Desa Puron Kecamatan Bulu Kabupaten Sukoharjo semakin menurun. Hal itu dikarenakan pengambilan air tanah yang tidak diimbangi dengan semangat konservasi dan sedikitnya air hujan yang masuk ke dalam tanah. Berkurangnya jumlah air yang ada mengakibatkan mengeringnya tumbuhan di lingkungan tersebut. Selain itu, masih banyaknya sampah rumah tangga menjadi permasalahan yang harus dihadapi masyarakat permukiman. Penanganan sampah dan irigasi secara konvensional yang telah diterapkan oleh masyarakat belum menjadi solusi terbaik. Sehingga perlu penanganan secara tersistematis, terstruktur dan berkelanjutan. Pengabdian yang dilakukan bertujuan untuk membantu masyarakat Desa Puron dalam menangani masalah air dan sampah. Pengabdian masyarakat dengan mensosialisasikan dan mengajak masyarakat untuk melakukan konservasi sumber daya air dengan penerapan teknologi sederhana dan murah. Penerapan teknologi yang bisa diterapkan yaitu dengan pembuatan lubang resapan biopori untuk meningkatkan jumlah air dalam tanah serta mengurangi sampah organik di Desa Puron. Lubang resapan biopori berfungsi sebagai tempat resapan air ke dalam tanah dan sebagai tempat pembuatan kompos dari sampah organik. Lubang resapan biopori tidak membutuhkan area luas dan proses pembuatannya sangat mudah, hal ini tentu menjadi solusi yang tepat untuk wilayah Desa Puron. Hasil pengabdian menjadikan ketersedian air yang ditandai dengan menghijaunya tumbuhan. Kata kunci: Air, Biopori, Pengabdian, Desa Puron
Experimental Study of Lithium-ion Battery Performance Based on Mini-channel Cooling Plate Rushadiawan, Ihsan Pratama; Tjahjana, Dominicus Danardono Dwi Prija; Nizam, Muhammad; Arifwardana, Julian Fikri; Putra, Mufti Reza Aulia
Journal of Electrical, Electronic, Information, and Communication Technology Vol 6, No 2 (2024): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.6.2.92488

Abstract

Making efficient batteries is important nowadays. One potential problem that can hinder this is the thermal runaway that occurs in battery cells. There are various causes of thermal runaway, one of the most common is an increase in temperature that exceeds the optimal allowable limit. Additional cooling will be required in vehicles that use batteries. Battery Thermal Management System (BTMS) with mini-channel cooling plate is one of the methods often used to maintain battery performance. In this study, the performance of Lithium-ion batteries is affected by fluid flow velocity. The experimental process was carried out by charging and discharging with a C-rate of 1C. Cooling is done with ethylene glycol fluid with fluid velocity variations of 0.21 L/min; 0.42 L/min and 0.63 L/min. The results show that fluid flow velocity affects the final battery temperature and battery performance. The optimal fluid velocity is shown at 4.2 L/min. At this speed it can reduce the battery temperature by 6.7°C.
Performance Analysis and Characterization Hybrid Two Wheeller Vehicle with Using a Chassis Dynamometer Arifwardana, Julian Fikri; Tjahjana, Dominicus Danardono Dwi Prija; Nizam, Muhammad; Rushadiawan, Ihsan Pratama; Putra, Mufti Reza Aulia
Journal of Electrical, Electronic, Information, and Communication Technology Vol 6, No 2 (2024): JOURNAL OF ELECTRICAL, ELECTRONIC, INFORMATION, AND COMMUNICATION TECHNOLOGY
Publisher : Universitas Sebelas Maret (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jeeict.6.2.92487

Abstract

The extraordinary growth in means of transportation, especially vehicles with internal combustion engines, has made state laws and regulations increasingly stringent. Regulations regarding energy consumption used for passenger and personal mobility and the emissions produced in order to reduce pollution. A hybrid vehicle combines two energies produced from various sources such as an ICE and an electric motor to become a hybrid electric vehicle (HEV). This research discusses hybrid electric vehicles on 2-wheeled vehicles which can be used as a solution that can be developed further before pure electric vehicles (EV) replace motorized vehicles (ICE). This research was done experimentally, by carrying out tests on a dynamometer and on the road testing. The main material used in this research was a Honda PCX 150 vehicle. The results of the test on the dynamometer showed that the performance of the internal combustion engine (ICE) had a torque of 11.12 Nm and a power of 8.20 kW at 7000 rpm. Testing the electric motor (EV), obtained torque results of 11.7 Nm and 2.33 kW power. The road test results for internal combustion engine consumption to consume 1 liter of fuel, capable of covering a distance of 54.55 km. Electricity consumption from 100% to 0% SOC can cover a distance of 46.31 km. Hybrid consumption 1 liter of fuel and battery full 100% capable of covering a distance 57.79 km, with battery condition reduced 16%.
Co-Authors Andriyanto, Solikin Ari Prasetyo Arifwardana, Julian Fikri Budiana, Eko Prasetya Fathurrohman, Aulia Haji, Mohammed M. Harwijayanti, Widyanita Muhammad Aziz Muhammad Nizam Putra, Mufti Reza Aulia Rachmanto, Rendy Adhi Risdiyanto, Gunawan Rushadiawan, Ihsan Pratama Septiyanto, Muhamad Dwi Shame, Buruhan Haji Singgih Dwi Prasetyo Suyitno Suyitno Syamsul Hadi Ubaidillah Zainal Arifin