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INDONESIA
Indonesian Journal of Energy
Published by Purnomo Yusgiantoro Center
ISSN : 25491016     EISSN : 2549760X     DOI : -
Core Subject : Science,
Energy
The journal covers research with a strong focus on energy economics, energy analysis, energy modeling, and prediction, integrated energy systems, energy planning, and energy management. The journal also welcomes papers on related topics such as energy conservation, energy efficiency, energy innovation, energy technology, biomass and bioenergy, renewable energy, electricity supply and demand, energy storage, energy in buildings, energy finance, energy law and on economic and policy issues, also provided such topics are within the context of the broader multi-disciplinary scope of energy.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 3 No 1 (2020): Indonesian Journal of Energy" : 5 Documents clear
Modeling of Hydrogen Adsorption Phenomenon in Amorphous Silica Using Molecular Dynamics Method Muhammad Hanif Abdurrahman; J. F. Fatriansyah; D. Dhaneswara; F. R. Kuskendrianto; M. B. Yusuf
Indonesian Journal of Energy Vol 3 No 1 (2020): Indonesian Journal of Energy
Publisher : Purnomo Yusgiantoro Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33116/ije.v3i1.44

Abstract

Hydrogen is one of the future source energy because it has environmentally friendly. However, there are still some problems in the storage method of hydrogen. In several studies, it was found that Silicon based material is a promising candidate as a hydrogen storage medium. In this study, the effect of various temperature and pressure to the adsorption of hydrogen on amorphous silica with molecular dynamics simulation using Lennard-Jones potential. In this simulation, the temperature that i used are 233, 253, 273 and 293 K with pressure at each temperature are 1, 2, 5, 10, and 15 atm. The simulations had successfully visualized and indicate that amorphous silica has a good hydrogen storage capability where temperature and pressure affect the amount of hydrogen adsorbed. At low temperature (233 K), the hydrogen concentrations are relatively high than at higher temperature. The best result of hydrogen capacity is 0.048116% that occurred at high pressure (15 atm) with low temperature (233 K) condition.*The paper has been selected from a collaboration with IPST and 7th ICFCHT 2019 for a conference entitled "Innovation in Polymer Science and Technology (IPST) 2019 in Conjunction with 7th International Conference on Fuel Cell and Hydrogen Technology (ICFCHT 2019) on October 16th - 19th at The Stones Hotel Legian, Bali, Indonesia"
Development of Carbon Based NPK Slow Release Fertilizer using Biochar from Oil Palm Empty Fruits Bunch Era Restu Finalis; Sumbogo Murti Sri Djangkung; Arfiana; Ilhamsyah Noor; Hadi Suratno; Erlan Rosyadi; Hens Saputra; Reiji Noda
Indonesian Journal of Energy Vol 3 No 1 (2020): Indonesian Journal of Energy
Publisher : Purnomo Yusgiantoro Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33116/ije.v3i1.45

Abstract

Biochar is a solid material produced by thermochemical conversion of biomass under oxygen-limited conditions. It has a wide surface and contains many pores so that it can be used as a material for making fertilizer. Biochar based slow release NPK fertilizer was formulated and developed to reduce nutrient leaching and greenhouse gas emissions. In this research, biochar which was a by-product of biomass gasification using oil palm empty fruit bunches was processed to make slow release biochar NPK fertilizer. Sources of nitrogen (N) were derived from urea, phosphate (P) from diamonium phosphate (DAP) and potassium (K) derived from potassium chloride (KCl). Zeolite was added as a matrix to improve fertilizer characteristics. All materials were formulated to make slow release biochar NPK fertilizer used for red onion (Allium sepa) plant applications. Several micronutrients were also added including Mg (MgSO4 fertilizer) and S (ZA fertilizer) to support plant growth. The characterization of fertilizer products was carried out by using SEM, BET etc. to determine physical properties including surface area, pore volume, morphology and composition. Furthermore, biochar NPK fertilizer was applied to the red onion plant which was a high-value crop in Indonesia. The application of NPK biochar fertilizer on red onion plant showed its superiority compared to commercial NPK fertilizers. In addition, the use of Magnesium and sulfur micronutrients could support the growth of red onion bulbs so that they produced more and bigger bulbs.*The paper has been selected from a collaboration with IPST and 7th ICFCHT 2019 for a conference entitled "Innovation in Polymer Science and Technology (IPST) 2019 in Conjunction with 7th International Conference on Fuel Cell and Hydrogen Technology (ICFCHT 2019) on October 16th - 19th at The Stones Hotel Legian, Bali, Indonesia"
Design of Control and Human Machine Interface (HMI) for Proton Exchange Membrane Fuel Cell Kurniawan Kurniawan; Abdul Hamid Budiman; Ferri Hermawan; Anton Rahmawan
Indonesian Journal of Energy Vol 3 No 1 (2020): Indonesian Journal of Energy
Publisher : Purnomo Yusgiantoro Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33116/ije.v3i1.46

Abstract

Fuel cell is an electrochemical device that converts hydrogen and oxygen produces electrical energy continuously, water and heat as by product, which simultaneously. Proton Exchange Membrane Fuel Cell (PEMFC) operates with polymer electrolytes which are thin and proton permeable. Designing the control system, it is expected that the fuel cell operation could be in accordance with the predetermined process parameter design. In addition to the control system for fuel cell operations, a fuel cell protection or security system design is also carried out during operation in real condition. Referring to the block diagram or control system architecture and fuel cell operations that have been made, a detailed design will be made as a reference for the prototype of the control and protection system for operational and fuel cell testing and controlling. Making Standard operation procedure (SOP) is very helpful in the operation and avoids operating errors that can damage and harm caused.*The paper has been selected from a collaboration with IPST and 7th ICFCHT 2019 for a conference entitled "Innovation in Polymer Science and Technology (IPST) 2019 in Conjunction with 7th International Conference on Fuel Cell and Hydrogen Technology (ICFCHT 2019) on October 16th - 19th at The Stones Hotel Legian, Bali, Indonesia"
Thermoelectric Generator: A Source of Renewable Energy Nicanor Jr Fabracuer; Reymart Cepe; Neil Francis Ricafort; Rhoda Jane Rosal
Indonesian Journal of Energy Vol 3 No 1 (2020): Indonesian Journal of Energy
Publisher : Purnomo Yusgiantoro Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33116/ije.v3i1.47

Abstract

With the natural sources of energy such as fossil fuels is slowly depleting, it became a trend to find new sources of unlimited energy. Renewable source of energy is the best source of unlimited energy for it will be utilizing the resources around like solar, hydro, wind, and many more. One of those newly developed renewable sources utilizes the waste heat developed by individual machines. Since electrical generating machines that use combustion engines generate a considerable amount of waste heat energy from the exhaust gases. Hence, this study focused on waste heat energy harvester by the use of the thermoelectric generator. Thermoelectric power generation is based on a phenomenon called the Seebeck effect. When a temperature difference is established between the hot and cold junctions of two dissimilar materials, a voltage is generated. The heat flow circulation through the semiconductors causes a displacement of charge carriers. A larger delta temperature creates a larger electrical current, ideally, but it is coupled with the fact that a semiconductor is effective only on a temperature range making the thermoelectric generators operational on a limited delta temperature. Primarily, the device was composed of a thermoelectric module mounted on an aluminum plate and placed in an oven. The main objective of the study is to design a circuitry for the thermoelectric generator that aimed to generate a minimum of 20 watts in order to power an AC load. In order to validate the device fabricated, certain measurements needed to be taken during the operation of the prototype. Thus, this device is now a developing source of alternative energy with further studies and innovations for commercial purposes.*The paper has been selected from a collaboration with IPST and 7th ICFCHT 2019 for a conference entitled "Innovation in Polymer Science and Technology (IPST) 2019 in Conjunction with 7th International Conference on Fuel Cell and Hydrogen Technology (ICFCHT 2019) on October 16th - 19th at The Stones Hotel Legian, Bali, Indonesia"
Techno-economic Feasibility Analysis of Photovoltaic Charging Station for Electric Boats in Sabangko Island B. D. Indradjaja; B. Ramadhani; Phil. M. Günther; P. Gunawan
Indonesian Journal of Energy Vol 3 No 1 (2020): Indonesian Journal of Energy
Publisher : Purnomo Yusgiantoro Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33116/ije.v3i1.50

Abstract

Indonesia is the largest archipelago in the world. There are thousands of islands that are located far away from the grid that needs access to electricity. As a result, PV mini-grids have been installed in many remote islands. However, most of these PV mini-grids are under-utilized producing large amounts of unused excess energy. Since most of the inhabitants of these remote islands depend on fishing for their livelihoods, an idea was proposed to use excess energy from a PV mini-grid to power electric boats. This paper presents a techno-economic feasibility analysis of a PV charging station for electric boats using Sabangko Island in Makassar as an exemplary location. A detailed analysis of the existing system shows that there is enough excess energy to charge several boat batteries. The economic analysis shows that the LCOE of the project is quite low relative to other off-grid projects and the price of renting and charging a battery is still affordable.

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