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All Journal Sinergi Journal of Engineering and Technological Sciences KOVALEN: Jurnal Riset Kimia EMITTER International Journal of Engineering Technology IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) FLUIDA AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) International Journal of Research in Vocational Studies (IJRVOCAS) Aptekmas : Jurnal Pengabdian Kepada Masyarakat Tropical Plantation Journal Proceeding ISETH (International Summit on Science, Technology, and Humanity) International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Rusdianasari Rusdianasari
Department of Renewable Energy Engineering, Politeknik Negeri Sriwijaya, Palembang
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Literature Review: A Comparative Analysis of Cooling Methods for Enhancing Solar Panel Efficiency Syahrian, Nur Mutiara; Faroja, Anas; Rusdianasari
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 1 (2025): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i1.364

Abstract

Overheating can significantly reduce the efficiency and power output of solar panels, leading to the development of various cooling techniques. This paper compares four cooling methods: heatsink with fan, fin heatsink, water cooling, and floating solar panels. The study evaluates these methods based on temperature reduction, cooling efficiency, electrical performance, and practical considerations. Active systems, like water cooling and heatsink with fan, showed higher performance improvements but required more resources and were more complex to operate. On the other hand, passive systems such as fin heatsink, and floating panels offered simpler and more sustainable solutions with moderate efficiency gains. This review highlights the balance between efficiency, sustainability, and practicality, providing valuable insights for choosing the best cooling method for solar panels. The findings also point to future opportunities for advancements through hybrid systems and new materials to enhance performance and sustainability in solar energy systems.
Literature Review: A Study on Efficiency Enhancements, Comparative Analysis of TiO2 and ZnO-Based Dye-Sensitized Solar Cells Suyadi, M. Ilham Andri; Saputra, Yureski Belly; Rusdianasari
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 1 (2025): IJRVOCAS - April
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i1.370

Abstract

Dye-Sensitized Solar Cells (DSSCs) have garnered significant attention due to their cost-effectiveness and potential for sustainable energy applications. TiO2 and ZnO nanostructures are widely employed as photoanodes, given their unique optical and electronic properties. This paper compares the findings of ten studies with similar research scopes, highlighting enhancements in DSSC efficiency using modified TiO2 and ZnO. Results are presented through comparative analysis and graphical representations, focusing on energy conversion efficiency. Through a detailed comparative analysis, this research identifies key trends and material innovations for advancing DSSC technology. Currently from these studies TiO2 with synthesis dye still hold the highest efficiency compared to ZnO and Synthesis TiO2/ZnO nanocomposite whether using synthesis and natural dye and by using counter electrode of Mg and Fe in TiO2 based have the least efficiency. DSSCs efficiency still lower than silicon based and thin-film solar cells but have the potential to be the cheapest solar cells. DSSCs need to improve efficiency to be able to go to marketplace and it needs further research and combination of dye and counter electrode or even the new breakthrough.
Performance Improvement of Sand-Based Batteries using Sea Sand and Metal Waste as an Alternative Energy Storage System Siswanto; Rusdianasari; Indrayani
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 5 No. 2 (2025): IJRVOCAS - August
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v5i2.427

Abstract

The shift to renewable energy faces the challenge of intermittency, which requires effective Energy Storage Systems (ESS). Sand-Based Thermal Energy Storage (TES) presents a cost-effective and environmentally friendly solution, although it suffers from the low thermal conductivity of sand. This research seeks to enhance the thermal efficacy of sand batteries by incorporating waste iron shavings from lathes as a composite material and examining its suitability for pilot-plant scale heating.A 96-liter sand battery container was used with varying mixtures of iron waste at 0%, 10%, 20%, and 30% relative to the volume of sea sand. The charging process used a 4000-watt power supply for simulation and 4000 Wp solar panels for validation. The discharge process was implemented to provide heat to a copra drying oven. The findings indicate that incorporating waste iron significantly improves the heat transfer rate and temperature uniformity during charging. The composition with 30% iron (P-30) demonstrated the most favorable thermal properties. During discharge tests, the system maintained the copra drying oven temperature within 56-57°C for over 12 hours, meeting the required drying temperature standards. This study proves that sand batteries with a waste iron composite represent an effective, cost-effective, and sustainable TES solution for thermal applications in the context of renewable energy.
SOSIALISASI CO DIGESTION LIMBAH CAIR TAHU DAN KOTORAN SAPI DI CV PANDAWA FARM Leila Kalsum; Rusdianasari; Aida Syarif; Yordan Hasan
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 7 No 3 (2024): Aptekmas Volume 7 Nomor 3 2024
Publisher : Politeknik Negeri Sriwijaya

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Abstract

This service activity provides benefits to CV Pandawa Farm, because it uses cow dung into environmentally friendly fuel energy. Sarnubi CV Pandawa Farm's Cattle Farm is a cattle farm that has been established for more than 10 years. more than 30 individuals. The location of this farm is in the Sukawinatan area which is not far from the Palembang City Waste Landfill. The environmental conditions of this farm are not good because health management of cow dung has not been implemented here. Processing cow dung into biogas can have a good impact on the environment because it maintains environmental cleanliness. Apart from that, biogas can be used to replace fossil fuels. CV Pandawa Farm does not yet understand how to process cow dung into biogas. In this socialization, counseling was provided by providing knowledge and understanding of how to process cow dung waste combined with tofu industry waste into biogas using a Fixed Dome Digester
SOSIALISASI PEMBUATAN HIDROGEN MENGGUNAKAN DRY CELL ELECTROLYZER Rusdianasari; Aida Syarif; Leila Kalsum; Abdul Rohman; Kania Pusriani Amalia; Siswanto
Aptekmas Jurnal Pengabdian pada Masyarakat Vol 7 No 4 (2024): Aptekmas Volume 7 Nomor 4 2024
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Hidrogen merupakan gas ramah lingkungan yang dapat dihasilkan melalui proses elektrolisis air untuk memisahkan hidrogen (H₂) dan oksigen. Pada penelitian ini digunakan elektroliser sel kering dengan membran polyvinyl alcohol (PVA) sebagai pemisah antara dua elektroda baja tahan karat 316 guna memperoleh komposisi hidrogen yang lebih tinggi. Penerapan membran PVA terbukti mampu meningkatkan produksi hidrogen secara signifikan dibandingkan tanpa penggunaan membran. Selain itu, pemanfaatan elektrolit KOH dalam proses elektrolisis mampu meningkatkan arus listrik, yang secara linier berbanding lurus dengan kenaikan kebutuhan daya listrik serta menghasilkan produksi gas hidrogen yang lebih besar. Gas hidrogen yang dihasilkan kemudian dikonversi menjadi energi listrik menggunakan sel bahan bakar hidrogen untuk menyuplai stasiun pengisian daya dan telepon sebagai beban, dengan status pengisian dikategorikan berhasil (CS) atau gagal.
Utilization of Rotten Tomato Juice and Starfruit Juice with the Addition of Potassium Hydroxide in Biobattery Production Sardewi, Tri; Amanah, Tria Rizki; Rusdianasari, Rusdianasari; Junaidi, Robert; Hasan, Abu
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 3 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i3.772

Abstract

Indonesia's dependence on fossil fuels underscores the need for the development of environmentally friendly alternative energy sources. This research examines the utilization of rotten tomato waste (Solanum lycopersicum) and starfruit (Averrhoa bilimbi L.) juice as natural electrolytes in the production of bio-batteries, with the addition of potassium hydroxide (KOH) to enhance their performance. Both materials contain organic acids such as citric acid and ascorbic acid, which support electrochemical reactions. The experimental variations included electrolyte solution volumes of 200–400 mL and KOH concentrations of 0.1 M, 1.0 M, and 2.0 M. The parameters tested included pH, conductivity, voltage, current, power, capacity, and the duration of the LED light, as specified in SNI IEC 60086-1:2015. The results show that for rotten tomato extract, the optimal combination of 350 mL with 2.0 M KOH yields the highest conductivity of 15.37 mS/cm and a capacity of 2.87 mAh. For starfruit juice, the optimal combination of 200–250 mL with 1.0 M KOH provides the highest capacity. The addition of KOH generally increases conductivity and power output, but high concentrations (2.0 M) in starfruit extract reduce efficiency due to over-ionization. This research proves that rotten tomato waste and starfruit juice with the addition of KOH have the potential to be efficient, inexpensive, and environmentally friendly bio-battery raw materials and support the utilization of organic waste as a renewable energy source. Contribution to Sustainable Development Goals (SDGs):SDG 7: Affordable and Clean EnergySDG 13: Climate Action
Supply Stability and Battery Protection in Rooftop Solar Pv System: A Hybrid Energy Approach Sari, Desti Erwita; Rusdianasari; Taqwa, Ahamad
International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS) Vol. 3 No. 3 (2025): IJMEAS - September
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijmeas.v3i3.432

Abstract

This study looks at how a hybrid rooftop solar power system works when connected to the national electricity grid, and how well it keeps the power supply steady for constant loads. The research has three main goals: setting up the hybrid energy system properly, protecting the batteries from damage, and using IoT technology to keep track of and control the system. Data was gathered over two weeks using a real-time monitoring tool called Adafruit IO. They checked several things like current, voltage, power flow, and how well the batteries were performing, including their charge level and how much they were being used. The results show the hybrid solar and grid setup works well. It uses solar power whenever it’s available and switches automatically to the grid when there’s not enough sunlight. The batteries stayed fully charged at 100%, which means they weren’t being used much and weren’t getting worn out quickly, helping them last longer and work better. Also, using IoT made it possible to monitor the system from a distance, collect data in real time, and make decisions automatically. This helped track how much energy was being made and used, spot any problems early, and control the power sources smartly. The research shows that this hybrid solar system, with IoT monitoring is a good way to keep the power steady for constant needs while keeping the batteries in good shape. 
Effect of Variation of Catalyst Concentration in the Producing of Biodiesel from Crude Palm Oil using Induction Heater Yunsari, Sandhy; Husaini, A; Rusdianasari, R
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 3 No. 1 (2019)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v3i1.19

Abstract

Biodiesel is an alternative fuel for diesel engines produced by transesterification and esterification of vegetable oils or animal fats with short-chain alcohols such as methanol. The reaction requires a catalyst, which is generally a strong base, thus producing a new chemical compound called methyl ester. One of the most common sources of biodiesel feedstock is CPO (Crude Palm Oil). CPO production in Indonesia is very high at 30.2 million tons in 2016, but CPO prices are low. Biodiesel can be produced using conventional methods, this method is less efficient because of its very slow and inefficient heating resulting from the transfer of energy to materials that depend on the convection currents and the thermal conductivity of the reaction mixture) which causes researchers to use new methods of producing Biodiesel, that is by using induction heating method. An induction heater is a technology that has been applied both in industry and households. The weight of the catalyst used uses variations of 0.6; 0.8; 1.0; 1.2; 1.4 %. The analysis showed that for optimal catalyst weight of 1.4%, yield biodiesel of 83.94%, density of 0.875 gr/cm3, the viscosity of 5.78 cSt, and flash point >100 oC. The use of 1.4% catalyst concentration produced biodiesel product that has a high yield and according to SNI 7128: 2015
Life Cycle Assessment of Production Bio-oil from Thermal Cracking Empty Fruit Bunch (EFB) Wulandari, Daya; Rusdianasari, Rusdianasari; Yerizam, Muhammad
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 6 No. 3 (2022)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v6i3.118

Abstract

Empty fruit bunch (EFB) is one of the abundant biomass waste from oil palm and it is an issue that it can be used as renewable energy in the form of Bio-oil. Bio-oil is produced by a thermal cracking process. This research aims to identify the potential environmental impact of Bio-oil production from EFB as fuel. Life Cycle Assessment (LCA) with gate to gate approach is used in data processing applications for networks in Simapro V.9 and the database used is similar to the characteristics of the eco invent database. Functional units are used to show environmental references in impact categories, such as energy used and global warming potency. The results show that the stage of the bio-oil production cycle in the pretreatment process has a greater global warming impact than the others, amounting to 131.10013 kg CO2 eq. The results of the analysis using the networking graph on the Simapri, show that the environmental hotspot of the thermal cracking process for Bio-oil production is caused by the use of electricity from the State Electricity Company (PLN) and the release of chemical substances from the process. From the results of the LCA, environmental performance improvement or continuous improvement can be done is by managing energy use and installing equipment.
Characterization of Empty Fruit Bunch of Palm Oil as Co-firing Biomass Feedstock Rusdianasari, Rusdianasari; Arissetyadhi, Iwan; Kalsum, Leila; Bow, Yohandri; Syarif, Aida; Arifin, Fatahul
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 7 No. 1 (2023)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v7i1.237

Abstract

Empty fruit bunches of Palm Oil (EFB) are a potential source of biomass energy because they contain lignocellulose (cellulose, hemicellulose and lignin) so that they can be converted into biopellets for co-firing. The purpose of this research is to determine the raw material properties of EFB in the form of proximate, ultimate, lignin, and biopellets. Using a pelletizer, biopellets are created by adding starch as an adhesive. The raw material characteristics of EFB from proximate analysis revealed moisture content of 11.98%, ash content of 6.53%, volatile matter content of 65.15%, and fixed carbon content of 16.44%. According to the final study results, the biopellets from empty fruit bunches included 48.53% C, 6.05% H, 0.32% N, 36.8% O, and 0.08% Sulphure. The atomic ratio obtained from the final analysis results could be used to determine the calorific value that can be used for fuel; the biopellet calorific value of EFB is 4,583 kcal/kg, with Hardgrove Grindability Index (HGI) values of 78.6 and Ash Fusion Temperature (AFT) 1100oC. The lower the value of the atomic ratio contained, the higher the calorific value contained in a specific fuel.
Co-Authors ABDUL ROHMAN Abdul Rohman Abu Hasan Agustin, Delliana Ahmad Fudholi Ahmad Taqwa Aida Syarif AIDA SYARIF Amalia, Kania Yusriani Amanah, Tria Rizki Anak Agung Istri Sri Wiadnyani Arissetyadhi, Iwan Arza, Tasya Dwi Putri Bambang, Muhammad Refo Bow, Yohandi Dewi, Tresna Faroja, Anas Fatahul Arifin, Fatahul Firdiansyah Herawati Budiastuti Hilwatullisan Ho, Ting Seng Husaini, A Ida Bagus Gede Darmayasa Idha Silviyati Indah Purnamasari Indrayani Jaksen M.A Jamil, Maizun Binti Kalsum, Leila Kania Pusriani Amalia Kinia Eldwita Leila Kalsum Mariani Mariani Muhammad Yerizam Mujiyanti, Apri Nainggolan, Hetty S Nasyta, Nabila Putri Ni Luh Suriani Nor, Siti Najdah Binti Mohd Novarini, N Octhaviana, Vivi Paramitha, Tifa Pola Risma Putra, Asri Eka Putri Arza, Tasya Dwi Putri Arza Rachmawati, Anissa Nurul Rahmawati, Aisyah Auliya RD Kusumanto Rifa'i, Ahmad Imam Risdzuan, Aiman Arif Bin Rizka Amalia Robert Junaidi Ronaldo Sakuraba, Takahiro Saputra, Yureski Belly Sardewi, Tri Sari, Desti Erwita Sari, Febby Fitria Shanzet, Flavia Fionessa Falenda Sigit Kurniawan Siswanto Susanto, Susy Mardiana Suyadi, M. Ilham Andri Syafitri, Dwi Syahrian, Nur Mutiara Syakdani, Adi Syaritri, Dwi Taqwa, Ahamad Tresna Dewi Trirahayu, Dhyna Analyes Vivi Octhaviana Yohandri Bow Yordan Hasan Yunsari, Sandhy Yurni Oktarina Zaman, Muhammad Zhafarina, Imas Ning