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International Journal of Renewable Energy Development
Published by Center of Biomass and Renewable Energy
ISSN : 22524940     EISSN : 27164519     DOI : https://doi.org/10.61435/ijred.xxx.xxx
Core Subject : Science, Engineering,
Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering
The International Journal of Renewable Energy Development - (Int. J. Renew. Energy Dev.; p-ISSN: 2252-4940; e-ISSN:2716-4519) is an open access and peer-reviewed journal co-published by Center of Biomass and Renewable Energy (CBIORE) that aims to promote renewable energy researches and developments, and it provides a link between scientists, engineers, economist, societies and other practitioners. International Journal of Renewable Energy Development is currently being indexed in Scopus database and has a listing and ranking in the SJR (SCImago Journal and Country Rank), ESCI (Clarivate Analytics), CNKI Scholar as well as accredited in SINTA 1 (First grade category journal) by The Directorate General of Higher Education, The Ministry of Education, Culture, Research and Technology, The Republic of Indonesia under a decree No 200/M/KPT/2020. The scope of journal encompasses: Photovoltaic technology, Solar thermal applications, Biomass and Bioenergy, Wind energy technology, Material science and technology, Low energy architecture, Geothermal energy, Wave and tidal energy, Hydro power, Hydrogen production technology, Energy policy, Socio-economic on energy, Energy efficiency, planning and management, Life cycle assessment. The journal also welcomes papers on other related topics provided that such topics are within the context of the broader multi-disciplinary scope of developments of renewable energy.
Arjuna Subject : Energi (semua kategori) - Energi Terbarukan, Keberlanjutan dan Lingkungan
Articles 15 Documents
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Search results for , issue "Vol 14, No 2 (2025): March 2025" : 15 Documents clear
Low-carbon dispatch optimization of wind-solar-thermal-storage multi-energy system based on stochastic chance constraints and carbon trading mechanism Liu, Hong; Su, Yongwei; Cai, Kaijing; Mo, Yingkang
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60669

Abstract

To improve the low-carbon economic performance of renewable energy-dominated power systems, a multi-energy coordinated optimization dispatch model for wind, solar, thermal, and storage systems considering uncertainties on both the supply and demand sides is proposed. This paper comprehensively considers the economic costs of thermal power unit operation, wind and solar power curtailment, energy storage operation, carbon trading and spinning reserve. The model incorporates a penalizing carbon trading mechanism and uses a stochastic chance-constrained approach to handle fluctuations in wind and solar power generation as well as uncertainties in load forecasting. The study, based on the IEEE 30-bus system, is solved using a stochastic simulation particle swarm optimization algorithm. Results show that after introducing the carbon trading mechanism, the system's carbon emissions were reduced by 8.35%, wind and solar curtailment penalties were reduced by 65.48%, and overall costs decreased by 14.94%. Additionally, the chance-constrained model effectively reduced the system's reserve capacity requirements, with reserve capacity decreasing by 31.84%, leading to a further reduction of 26.83% in overall costs. In the scenario of combined wind-solar-thermal-storage output, the wind and solar curtailment rate dropped to 7.37%, and carbon emissions decreased to 6474.69 tons. Through the "energy shifting" function, the energy storage system provided effective support during peak loads, further optimizing the dispatch outcomes.
Economic dispatch model of renewable energy system considering demand response Guo, Shiqin
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60680

Abstract

Due to the intermittency and volatility of renewable energy, the system stability is poor and the operating cost is high. This study proposes an economic dispatch model for renewable energy systems based on a demand response model and differential evolution algorithm. A demand response model based on real-time flexible tariffs is combined with charging and discharging strategies for electric vehicles to optimize flexible load dispatch in the system. This combination is intended to improve the efficiency and reliability of grid operation. The traditional differential evolution algorithm is prone to getting stuck in local optima. Given this, this study introduces a deterministic sequence-improved differential evolution algorithm to enhance population diversity and local search ability, significantly improving the global search performance and convergence efficiency of the algorithm. To validate the effectiveness of the model, function extremum and system operation simulation experiments are designed. The results showed that the improved algorithm had a variance of 0 and an optimal value of 10-30 on multi-modal functions, and a variance of 0 and an optimal value of 10-3.5 on fixed dimensional functions. After considering demand response, the peak valley difference in electricity consumption between renewable energy systems A and B was 90.15MW and 527.55MW, with fluctuations of 36.57MW and 201.79MW, and operating costs of 46058.76 yuan and 52.3315 million yuan, respectively. Research findings indicate that the electric energy coordination and economic management of this model have been significantly enhanced. These enhancements effectively ensure efficient energy utilization, facilitate the safe and stable operation of the system, and provide a novel theoretical foundation for the optimization and scheduling of renewable energy systems.
Effects of structure height and temperature to power generation of a 4.86 kWp solar land Simala, Suthep; Roynarin, Wirachai
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60668

Abstract

Efficient heat transfer significantly improves both the efficacy of photovoltaic (PV) systems and the longevity of PV panels. Lower temperatures facilitate improved power generation and minimize heat-related damage. Conduction, convection, and radiation are the primary heat transfer mechanisms that are involved in this process. This study investigated the effects of PV panel structure heights—specifically 1 meter, 1.5 meters, and 2 meters—on the temperature differences between the top and bottom of the panels, as well as their corresponding power generation, while accounting for the heat transfer that occurred. The PV system comprised nine 540-watt monocrystalline PV panels arranged at these three heights in Khlong Si, Khlong Luang, and Pathum Thani. Data on temperature, power output, and other meteorological variables were collected at 5-minute intervals from 6:00 AM to 6:00 PM over a two-month period from March to April 2024. To evaluate the impact of panel height on performance, all collected data were analyzed. The actual power outputs were compared with simulations conducted using PVsyst. Additionally, the costs associated with each panel height were assessed to identify the optimal height that would achieve both high power output and low costs. The findings revealed that increasing the panel height contributed to a reduction in temperature buildup within the panels and enhanced power output, with increases of 8.87% and 9.45% observed at heights of 1.5 meters and 2 meters, respectively. However, this increase in height also resulted in cost escalations of 24.51% and 48.04%, respectively. Consequently, it was determined that the optimal height was 1.5 meters, as it provided an effective balance between maximizing power output and minimizing costs. Furthermore, the results from the PVsyst simulations indicated significant discrepancies, with measured values approximately 20% lower than expected.
Valorization of coal fly ash for the synthesis of lithium nickel-cobalt-aluminum-iron oxide (NCAF) cathode material Yudha, Cornelius Satria; Rahmawati, Aleida Dwi; Sumarti, Ragil; Muzayanha, Soraya Ulfa; Lestari, Annisa Puji; Arinawati, Meidiana
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60829

Abstract

This study demonstrates a novel approach to high-performance cathode materials by utilizing coal fly ash as a source of Al and Fe dopants for nickel-rich layered oxides. LiNixCoyAlzFe(1-x-y-z)O2 (NCAF) materials were synthesized through a combined hydrometallurgical-solid state route, incorporating fly-ash waste-derived Al/Fe hydroxides (AFH) at various concentrations during the lithiation process. The characteristics of NCAF precursors, AFH and Ni0.8Co0.2C2O4, were thoroughly investigated. Structural analysis confirms the successful formation of single-phase materials with α-NaFeO2 structure (R-3m) up to 5% AFH content, exhibiting changes in the level of order, lattice parameters, and unit cell volume. Surface area characteristics show a transition from 38.747 m²/g to 6.52 m²/g with increasing AFH content, approaching the ideal surface area. The compositional evolution from LiNi0.8Co0.2O2 to LiNi0.66Co0.16Al0.08Fe0.10O2 maintains uniform atomic distribution. In the full-cell configuration with graphite anodes (N/P ratio: 1.2-1.3), NCAF with 5% AFH demonstrates enhanced electrochemical performance (~155 mAh/g), attributed to synergistic effects of Al-induced structural stabilization and Fe-contributed redox activity. This approach establishes a pathway for simple and low-cost battery material development while addressing industrial waste utilization.
Application of response surface methodology to optimize the dual-fuel engine running on producer gas Nguyen, Phuoc Quy Phong; Tran, Viet Dung; Nguyen, Du; Luong, Cong Nho; Paramasivam, Prabhu
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60927

Abstract

This work develops a computational framework that optimizes the performance and emissions of a dual-fuel diesel engine running on biomass-derived producer gas as the main fuel and diesel as the pilot fuel. The study connects essential responses, brake thermal efficiency, peak combustion pressure, and emissions of nitrogen oxides (NOx), carbon monoxide (CO), and unburnt hydrocarbon (HC) with controllable factors like engine load and pilot fuel injection duration. The approach consists of simulating the impacts of these controllable inputs on engine performance, then optimization to find the optimal fuel injection pressure to balance performance and emissions. The results show that engine load considerably affects NOx emissions and brake thermal efficiency; greater loads lower CO emissions but raise HC emissions at low compression ratios. Although it had little effect on NOx emissions, fuel injection pressure was vital in balancing general engine performance. Using optimization, an optimal fuel injection pressure value of 218.5 bar was identified, thereby producing a brake thermal efficiency of 27.35% and lowering emissions to 80 ppm HC, 202 ppm NOx, and 92 ppm CO. This computational method offers a strategic means for improving the efficiency of dual-fuel engines while reducing their environmental impact, hence guiding more sustainable and effective engine operation.
Synthesis of rubber seed shell-derived porous activated carbons for promising supercapacitor application Rustamaji, Heri; Prakoso, Tirto; Devianto, Hary; Widiatmoko, Pramujo; Febriyanto, Pramahadi; Ginting, Simparmin br; Darmansyah, Darmansyah
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60869

Abstract

This work investigates synthesizing activated carbon obtained from rubber seed shells utilizing several activating agents (KOH, CaCl2, and ZnCl2) for supercapacitor applications. Activated carbon was produced from a rubber seed shell using hydrothermal carbonization at 275 °C for 60 minutes and a 120-minute activation treatment at 800 °C. Various activating agents pronounced impacted the pore architecture, surface area, crystallinity, and level of graphitization, which collectively determined the electrochemical characteristics of the resulting materials. Incorporating activation agents enhances the specific surface area and influences the extent of graphitization of activated carbon. The specific surface area of activated carbon products ranges from 367 to 735.2 m² g⁻¹. Further investigation through electrochemical analysis, conducted with a carefully engineered two-electrode system, demonstrated a peak electrode capacitance value of 246 F g-1 at 50 mA g-1 for an ACZn-based supercapacitor. Supercapacitor cells’ energy and power densities reached significant levels, measuring 5.47 Wh kg-1 and 246 W kg-1, respectively. The RSS-derived activated carbon-based supercapacitor exhibited remarkable longevity in a 5000-cycle test, with consistent capacitance retention and coulombic efficiency of 100.11% and 100%, respectively. This work presents a sustainable pathway for producing activated carbon electrodes, contributing to the global circular economy and demonstrating considerable industrial potential.
Simulation model of active distribution network lines with high proportion distributed photovoltaic energy storage access Zhai, Di; Ye, Wenhua; Ma, Ming; Deng, Yunshu; Yang, Jingchen
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60686

Abstract

To address the voltage stability and power quality issues prevalent in active distribution lines with a significant proportion of distributed PV energy storage, the study proposes a novel multi-time reconfiguration loss reduction model for active distribution networks. This model employs a phased optimization strategy and a security-constrained optimal tidal current technique to enhance efficiency and reliability. The proposed method can effectively allocate reactive power output based on reactive power capacity, achieving better reactive voltage control. The nodes with a smaller reactive power capacity, nodes 2 and 3, exhibited an output of 0.33 Mvar. In comparison, the nodes with a medium capacity, nodes 27 and 28, demonstrated an output of 0.71 Mvar. Finally, the nodes with the largest capacity, nodes 16 and 17, exhibited an output of up to 0.98 Mvar. This differentiated reactive power allocation strategy effectively optimized voltage control and ensured the stability of active distribution network lines. In addition, the annual system operating cost of the suggested method was reduced by 167,889.33 yuan. From this, the proposed method demonstrates significant benefits in both economic and environmental aspects. It provides a practical and feasible optimization strategy for the high proportion of distributed photovoltaic energy storage connected to active distribution networks, which can promote the transformation of energy structure.
A porous activated carbon derived from banana peel by hydrothermal activation two-step methods Hendronursito, Yusup; Astuti, Widi; Sabarman, Harsojo; Santoso, Iman
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60847

Abstract

Activated carbon from banana peel waste through two stages of hydrothermal (HT) and physical activation processes has been carried out. The hydrothermal process was carried out at a temperature of 200 oC with a holding time of 2 or 6 hours. The hydrochar that had been obtained was then activated in the second stage with nitrogen gas flow (N2) at a temperature of 700 oC for 1 hour with a flow rate of 100 mL/min. The difference in treatment, without the HT process, two stages of activation, variations in activator agents (water, H3PO4, and PEG6000), water volume ratio and HT process holding time were studied for their effects on the specific surface area (SSA) and structure of activated carbon. SSA was measured using the Brunauer–Emmett–Teller (BET) adsorption method, x-ray crystallography was used to identify the crystalline phase and carbon structure parameters, and the surface morphology of activated carbon was observed using FESEM. The results showed that the activation method and process conditions greatly influenced the (SSA) of activated carbon. HT activation using a combination of activator agents produced an SSA reaching 476.9 m2/g. X-ray diffraction analysis showed that HT activation increased the degree of crystallization of activated carbon. The spherical surface structure of activated carbon was formed when H3PO4 was added, while the layered structure was formed when PEG6000 was used. Overall, the two-step activation preceded by the HT process with the addition of H3PO4 produced activated carbon with better SSA and carbon structure and has the potential to be used in wide applications such as EDLC supercapacitor electrode materials, battery cathodes, and adsorption materials.
The implementation of ozone cleaning on two-step texturization of p-type silicon wafer Md Daud, Mohd Norizam; Aadenan, Amin; Chin Haw, Lim; Mohd Nor, Najah Syahirah; Ibrahim, Mohd Adib; Mat Teridi, Mohd Asri
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60805

Abstract

This study investigates the ozone treatment process that can be utilized across various fabrication stages to enhance the performance of silicon solar cells. The effectiveness of this treatment on p-type silicon surfaces was examined through the application of ozone dissolved in deionized water (DIO3) and the ultraviolet-ozone (UVO3) cleaning process prior to the two-step texturization procedure. The two-step texturization procedure applied in this work eliminates the use of silicon nitride (SiN) as an anti-reflective coating (ARC) layer for the elimination of toxic gases and leads to the environment-friendly fabrication of solar cells. An alternative to RCA, DIO3 and UVO3 represent promising chemical options for cleaning applications to eliminate the use of hazardous chemicals. It was discovered that the surface with the DIO3 treatment for 10 minutes resulted in a significantly enhanced surface quality on the p-type silicon wafer. In the DIO₃ cleaning, ozone is dissolved in deionized water  to create a highly oxidative solution capable of removing organic contaminants and particles effectively. In contrast, the UVO₃ treatment harnesses ultraviolet light to synthesize ozone directly on the wafer's surface, promoting the degradation of organic residues into volatile compounds, including CO₂ and H₂O. According to field emission scanning electron microscope (FESEM) micrographs and UV-visible spectrometer (UV-Vis) measurements, the textured wafer with DIO3 treatment improves the surface morphology and decreases the front surface reflection. As a result, the 10 minutes DIO3 treatments were reported optimal; the range size and height of the pyramid formed were 1.9–2.0 µm and 0.8–1.5 µm, offering a lower reflectivity value of below 12%, respectively. Results from the Atomic Force Microscope  (AFM) also confirm that the increase in average surface roughness from 203.65 nm to 300.27 nm was expected to improve light absorption. Moreover, this methodology leads to a considerable reduction in surface damage and is applicable to the silicon texturization process utilized in solar cell manufacturing.
Induction heating pyrolysis of landfilled plastic waste into valuable hydrocarbon fuels Phongsakul, Kittiphon; Chaiyaraksa, Chompoonut; Sricharoenchaikul, Viboon; Kachapongkun, Pongsakorn; Kaewpengkrow, Prangtip Rittichote
International Journal of Renewable Energy Development Vol 14, No 2 (2025): March 2025
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2025.60569

Abstract

This research investigated the pyrolysis process for plastic waste treatment using induction heating. The induction system involved a coil wrapped around insulated material to generate heat. The plastic waste was sourced from the Refuse-Derived Fuel (RDF) sorting process from a 15-year-old landfill in the province of Nonthaburi, Thailand. The pyrolysis was performed at temperatures ranging from 400 to 600°C with a batch reactor. The highest yield of pyrolysis oil was 27.6% wt. at 600°C. Energy consumption for converting plastic waste into oil ranged between 9.50 and 13.36 kWh, with the highest consumption at 600 °C. The produced pyrolysis oil at 600°C achieved the highest HHV of 41.33 MJ/kg. The GC/MS analysis of the pyrolysis oil revealed an increase in aromatic and hydrocarbons (C5-C11 and C12-C20) with rising temperature. These carbon fractions are suitable replacements for heavy oil or diesel fuel, as low-oxygenated compounds, and hydrocarbon content in pyrolysis oil are desirable. The amount of char produced at 400°C was the highest, with a yield that ranged from 45.2% wt. to 67.0% wt. Moreover, the pyrolysis process has a significant advantage in lowering greenhouse gas emissions (0.21–0.25% vol.), which releases less CO2 than the combustion of plastic waste. The findings therefore suggest that pyrolysis oil, which is produced under optimum conditions, can be used as a substitute liquid fuel in the industrial sector, and is consistent with the circular economy's concepts, promoting sustainability and utilizing resource efficiency.

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