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Self-doped porous carbon derived from acacia plantation residues for green-supercapacitor in sustainable energy applications Apriwandi, Apriwandi; Deniza, Rindhu Nabila; Martin, Awaludin; Julnaidi, Julnaidi; Taslim, Rika; Taer, Erman
Journal of Applied Materials and Technology Vol. 7 No. 1 (2025): September 2025
Publisher : Faculty of Engineering Universitas Riau and Applied Materials and Technology Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/Jamt.7.1.1-10

Abstract

To improve bio-organic-carbon quality for supercapacitors, consider using dual or more heteroatom for more profitable carbon-chain doping. Developing suitable sources and preparation strategies is challenging but essential. Herein, we introduce a potential carbon source derived from acacia plantation residues, doped with boron, oxygen, and phosphorus. The pore structure of this carbon material can be precisely tuned to exhibit a well-defined hierarchical arrangement of micro-, meso-, and macropores through a low-ratio of phosphoric acid (H?PO?) impregnation method combined with dual-environment (N2 and CO2) vertical pyrolysis in one step integrated. The resulting material displays a confirmed hierarchical morphology with a hierarchical transformation into tunnel pores, in specific surface area of 521.70 m²/g which contributed to high charge storage and deliverability. Additionally, the material contains significant levels of boron (0.93%), oxygen (9.19%), and phosphorus (0.34%), facilitating a reversible Faradic reaction in the working electrode. Consequently, optimized-electrode achieves a specific capacitance of 198 F/g at 1 A/g in H?SO? electrolyte. In a two-electrode system, records energy density of 14 Wh/kg (1 A/g) at a maximum power density of 670 W/kg (10 A/g). These findings suggest that the natural incorporation of boron, oxygen, and phosphorus enhances both the activity and the hierarchical pore structure of carbon derived from acacia plantation residues.
Pengembangan Media Promosi dan Media Informasi Wisata di Kelurahan Batu Bersurat, Kabupaten Kampar, Riau Anuar, Kaspul; Huda, Feblil; Fatra, Warman; Herisiswanto; Faisal, Gun; Rosa Putra Cupu, Dedi; Somadona, Sonia; Akbar, Musthafa; Martin, Awaludin; Nazaruddin; Syafri
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 7 No 4 (2023): November
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v7i4.10738

Abstract

Potensi objek wisata yang terdapat di Batu Bersurat belum tergarap dengan serius dan maksimal. Hal ini dapat dilihat dari minimnya sarana informasi dan promosi terkait keberadaan objek wisata di wilayah ini. Selain itu, minimnya keberadaan sarana pendukung turut menjadi penyebab rendahnya kunjungan wisatawan di wilayah ini. Berdasarkan pada permasalahan tersebut. Tim melaksanakan kegiatan pengabdian dalam bentuk pengembangan sarana dan penyediaan akses informasi wisata dalam rangka meningkatkan minat dan kunjungan wisatawan di Kelurahan Batu Bersurat, Kabupaten Kampar. Kegiatan pengabdian ini diawali dengan pembuatan foto udara dan foto landscape di area wisata Batu Bersurat dengan menggunakan wahana pesawat terbang tanpa awak tipe fixed wing. Selanjutnya kegiatan dilanjutkan dengan pembuatan video udara sinematik dengan memanfaatkan dua unit pesawat tanpa awak tipe rotary wing (drone). Hasil dari pembuatan media promosi wisata berbentuk video udara sinematik, foto landscape dan foto udara, selanjutnya diintegrasikan ke dalam media informasi wisata berbasis website yang juga dibuat oleh tim pengabdian. Diharapkan dengan adanya media promosi dan media informasi wisata ini, memudahkan pengelola objek wisata di Batu Bersurat, untuk mempromosikan ke khalayak ramai terkait keindahan objek wisata yang terdapat di Batu Bersurat.
Experimental investigation of HHO blending in combustion engine performance Martin, Awaludin; Hidayatullah, Abda; Ginting, Yogie Rinaldy; Sari, Annisa Wulan
SINERGI Vol 29, No 3 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.3.006

Abstract

The transition to renewable energy sources has become increasingly critical due to the adverse effects of greenhouse gas emissions. One alternative to reducing fossil fuel dependence is hydrogen. Hydrogen technology can be integrated into internal combustion engines without major design modifications. This study investigates the effects of HHO gas blending on engine performance under varying brake load conditions. The carburetor was modified to allow HHO gas from electrolysis to enter the combustion chamber. The results indicate that HHO blending led to a 4.9% increase in brake power, a 1.66% improvement in thermal efficiency, and a 3% reduction in brake-specific energy consumption (BSEC). Additionally, among different potassium hydroxide (KOH) concentrations, the 30% wt solution exhibited the lowest power consumption for electrolysis.
Oxygen/sulphur self-doped tunnel-like porous carbon from yellow bamboo for advanced supercapacitor applications Taer, Erman; Yanti, Novi; Putri, Rahma Lia; Apriwandi, Apriwandi; Martin, Awaludin; Julnaidi, Julnaidi; Chitraningrum, Nidya; Fudholi, Ahmad; Taslim, Rika
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp2030-2042

Abstract

The 3D hierarchical pore structure with tunnel-like pores is essential to the performance of porous activated carbon (AC) materials used in symmetric supercapacitors. This study aimed to effect of adding (0.3, 0.5, and 0.7) M KOH reagent and heat treatment on the formation of 3D porous, tunnel-like AC derived from yellow bamboo (YB) through N2-CO2 pyrolysis at 850 °C. The AC produced had a high concentration of nanopores, becoming a valuable storage medium with favorable physical-electrochemical properties. The results showed that 0.5-YBAC had the best physical and electrochemical properties, with a carbon purity, 89.16%, micro crystallinity of 7.374 Å, and excellent amorphous porosity. Furthermore, 3D hierarchical pore structure, enriched naturally occurring heteroatoms, dopant of oxygen (10.14%) and sulfur (0.10%). A maximum surface area of 421.99 m² g⁻¹, along with a dominant combination of micro-mesopores. The electrochemical performance test of the 0.5-YBAC electrode showed a Csp of 214 F g⁻¹, with Esp 24.7 Wh kg⁻¹ and Psp 19.2 W kg⁻¹. In conclusion, this study showed the potential of YB stems to enhance the development of supercapacitors, offering superior porosity characteristics for efficient energy storage applications.
Instalasi Penjernih Air Di Desa Buluh Cina, Kecamatan Siak Hulu, Kabupaten Kampar Putri Nawangsari, Putri Nawangsari; Martin, Awaludin; Arief, Dodi Sofyan; Akbar, Mustafa; Mintarto, Mintarto; Saputra, Doni
Jurnal Pengabdian UntukMu NegeRI Vol. 7 No. 1 (2023): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jpumri.v7i1.4658

Abstract

Buluh Cina Village, Siak Hulu District, Kampar Regency has problems with the availability of clean water. The water that residents use comes from dug/drilled wells that smell of sulfur. This water condition is not under the drinking water requirements standardized by the Indonesian Ministry of Health through Permen Kes No. 492/MENKES/PER/IV/2010. There needs to be a solution to overcome the problem of the availability of clean water in Buluh Cina Village. The solution is to install the water filter for clean and healthy water. The Mechanical Engineering Lecturer Team at the University of Riau facilitated the water filter, which would be installed in Buluh Cina Village with a storage tank capacity of ±10,000 liters. Water-filtered results are not smelled of sulfur and are by the drinking water quality standards following Permen Kes No. 492/MENKES/PER/IV/2010.
Energy Audit of Lighting and Air Conditioning Systems in Baby Clothing Stores Anis Aprilia; Ahmad Farhan; Awaludin Martin
Jurnal Teknik Mesin Vol 14 No 1 (2024): Jurnal Teknik Mesin Vol.14 No.1 April 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2024.v14.i1.13-20

Abstract

An energy audit is a method used to calculate the energy use of a building and find solutions to save energy. Things that can be achieved through this audit process are saving or reducing operational costs for business entities, industry or others, with energy savings also contributing to nature conservation and efficient use of energy which will increase the contribution to the company both financially and the lifespan of the equipment used. longer. From the analysis of the potential for energy savings through audits and conservation, it was concluded that energy use in baby clothing stores is wasteful. This can be seen based on the calculation of the Pre-Eco IKE value, which is 239.6 btu/h. After saving with the ECO option which can be done, the Post-Eco IKE value is 173.1 btu/h, where there has been a decrease in energy consumption from the wasteful category to somewhat wasteful.
Analisis Energi Gas Engine Siklus Otto Kapasitas 835 KW Syaifudin, Ahmad; Romy, Romy; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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

Abstract

Biogas from Palm Oil Mill Effluent (POME) is one of renewable energy resources that can be used to reduce theuse of fossil energy in satisfying the electricity needs. At biogas power plant, gas engine is an importantcomponent which functions to convert the energy contained biogas into mechanical energy to drive the electricgenerator. Because of its important function, the performance of the gas engine needs to be maintained in orderto remain well operated. In addition to maintaining the performance of gas engine, steps in improving theefficiency of gas engine energy usage also need to be done in order to become more efficient. Efficiency of thegas engine depends on the overall efficiency of cylinders gas engine in order to convert the energy of fuel intowork. Energy analysis is needed to know the efficiency of multi-cylinder gas engine at biogas power plant, so itcan be known the gas engine performance and can be used for further analysis in increasing the efficiency of theuse of renewable energy sources (biogas) in gas engine. The purpose of this research was to know the energy orthermal efficiency of gas engine. Variables used in the analysis were a composition of biogas, flow rate ofbiogas, a temperature of gas mixture entering the gas engine and temperature of exhaust gas. The energyanalysis result showed that the efficiency of all cylinders varies and the greatest energy or thermal efficiency ofgas engine is on 5th and 10th cylinder (56.29%) and lowest in 8th cylinder (56.17%). The average energy orthermal efficiency of gas engine is 56.23%.Keyword : Biogas, Biogas Power Plant, Gas Engine, Otto Cycle, Energy Analysis
Optimasi Temperatur Cooling Water Pada 25ºC Dan Hot Water Pada 60 ºC Dengan Variasi Waktu Siklus Pada Sistem 2 Bed Adsorption Chiller Saragih, Krist Mamre; Martin, Awaludin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Adsorption chiller has one of the solution related to enviromental issues by conventional refrigeration. This paper presented the optimization temperature cooling water and hot water from sistem adsorption chiller. Performance of adsorption chiller influenced by temperature hot water inlet and temperature cooling water inlet. To optimization temperature hot water inlet, temperature cooling water stay at 30ºC and to optimization temperature cooling water inlet, temperature hot water stay at 65ºC. According to this research temperature optimal hot water inlet 60ºC in time cycle 700s with COP 0.36% and cooling power 0.72kW but temperature optimal cooling water inlet 25ºC in time cycle 700s with COP 0.31% and cooling power 0.73kW.Keyword : Adsorption chiller, Cooling water, Hot water, COP, Cooling power
Variasi Heat Recovery Time Terhadap Unjuk Kerja Chiller Sistem Adsorpsi 2 BED Pada Temperatur Desorpsi 700C Sinaga, Tomi; Martin, Awaludin; Nasruddin, Nasruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Adsorption cooling system double bed with silica gel as adsorbent and water as the adsorbate is expected to reduce the use of refrigerant in the vapor compression system that utilizes refrigerant chlorofluorocarbon (CFC) and hydrochlorofluorocarbon (HCFC) that could potentially damage the ozone layer and increase global warming. This study aims to increase the value of the COP (Coeficient Of Performance) and SCP (Specific Cooling Power) adsorption cooling system double bed by testing. The method in this research is by means of heat and mass recovery time of the system. Methods of heat recovery time is done to improve the performance of adsorption double bed system-water pair silica gel as adsorbent-adsorbate. Based on test data and calculations are obtained, the lowest temperature of the water coming out of the evaporator is 12.57 0C with a change in average highest temperature was 2.440C. The highest COP value of the adsorption cooling system amounted to 0.49 in heat hecovery time 40 s and cycle time 500 s.Keywords: adsorption, heat recovery, cooling system, silica gel.
Komunikasi Firebase Berbasis Android untuk Sistem Keamanan Gerbang Geser Otomatis Terkendali PLC Kharisma, Oktaf Brillian; Aziz, Azridjal; Martin, Awaludin; Agus, Rio Masri
Journal of Electrical Engineering and Computer (JEECOM) Vol 6, No 1 (2024)
Publisher : Universitas Nurul Jadid

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33650/jeecom.v6i1.8512

Abstract

Sistem Gerbang otomatis, atau autogate, digunakan untuk memudahkan proses pembukaan dan penutupan Gerbang. Namun, dalam penggunaannya, muncul beberapa tantangan. Salah satunya adalah keterbatasan jarak akses pada sistem kendali autogate yang hanya menggunakan remote RF. Selain itu, sistem keamanan saat Gerbang menutup masih memiliki kelemahan, yaitu risiko potensial Gerbang menabrak objek yang berada di jalurnya. Untuk mengatasi tantangan-tantangan tersebut, penelitian ini bertujuan untuk merancang sistem pengendali Gerbang geser otomatis yang mengadopsi PLC sebagai pengontrol utama. Sistem ini juga akan menambahkan akses kontrol melalui smartphone berbasiskan android yang terhubung ke jaringan internet dengan bantuan modul ESP32 serta menggunakan basis data dari Firebase. Selain itu, sensor photobeam akan dimasukkan sebagai elemen pendeteksi objek yang berada di lintasan Gerbang sebagai system pengamannya. Dari Hasil implementasi dan analisis yang telah dilakukan, alat ini berhasil beroperasi sesuai dengan desainnya. Penggunaan smartphone sebagai kendali mampu mengatasi keterbatasan jarak akses, dengan waktu respons sekitar 0,5 hingga 3 detik, bergantung pada kualitas jaringan internet. Sensor photobeam juga berhasil mendeteksi objek yang berada di lintasan Gerbang, sehingga sistem kendali dapat menghentikan dan membuka Gerbang secara otomatis ketika objek terdeteksi saat Gerbang sedang menutup.
Co-Authors , Romy Abrar Ridwan Adam Maulana Ibra Agus, Rio Masri Agusta, Dhiky Rahman Agustina, Dinni Ahmad Farhan Ahmad Fudholi Ahmad Syaifudin Akbar, Mustafa Akbar, Musthafa Aldi Ansyah Kurniawan Lubis Andika Anis Aprilia Anuar, Kaspul Apriwandi Apriwandi . Arfie I. Firmansyah Arifful Rahman Asral Awal Januari S Azis, Azridjal Azridjal Aziz Bambang Suryawan Bambang Suryawan, Bambang Benny Wahyudi Benny Wahyudi Binsar Martua Parulian Manurung Brama, Jaka Cahyati, Wulan Chitraningrum, Nidya Clinton Naibaho Cupu, Dedi Rosa Putra Damanik, Reinhard Parulian Dedy Masnur, Dedy Deniza, Rindhu Nabila Dhewaji, Roe Dwi Dhiki R. A. Dhiky Rahman Agusta Dodi Sofyan Arief, Dodi Sofyan Doni saputra Erman Taer Fachri Husaini Fachry Abda El Rahman Fadilla Augusli Irwanda Fadillah, Naufal Faisal Afif Fakhru Rozi Z Feblil Huda Fharozi, Ridho Fikri Aminullah, Fikri Fikri Fahlevi Nasution Fikri Fahlevi Nasution Firmansyah, Arfie I. Ginting, Yogie Rinaldy Gun Faisal Hamdani Wahab Hamdani Wahab Hardanto, Lilik Tri Hariyono Hariyono Harun Orion Herisiswanto Herisiswanto Hidayatullah, Abda Ibrahim Ibrahim Irfandi Pratama Ivand Hintingo Iwan Kurniawan Iwan Kurniawan Jefri Ramadan Jheri Hermanto Johannes Panjaitan Jossy Kolata Julnaidi, Julnaidi Kharisma, Oktaf Brillian Khotimah, Nur Kresna, Pharada Krist Mamre Saragih M. Idrus Alhamid Meitri Nelta Mintarto, Mintarto Miswandi, Miswandi Moh. Arief Indra Permana Mohamad A Muhidin Mohammad Barbarosa Mohammad Barbarosa Muhammad Alhamid Muhammad Alhamid, Muhammad Muhammad Hatta Muhammad Idrus Alhamid, Muhammad Idrus Muhammad Nasir Muhammad Nur Muhammad Nur Ahmad H N. Nazaruddin Nasruddin - Nasruddin - Nasruddin Nasruddin Nasruddin Nasruddin Nasruddin Nasruddin Nasution, Fikri Fahlevi Nazaruddin Nehemia Simangunsong NST, Berriansyah Cipta Nur Indah Rivai Nur Indah Rivai Nursyafni, Nursyafni Okvitasari, Dwi Yani P, Brian Agung Cahyo Paulus, Hendri Pipin Azrin Pither Palamba Prayetno, Utari Purba, Cenora Evelynza Putra, Adipa Putri Nawangsari, Putri Putri Nawangsari, Putri Nawangsari Putri Wahyuni Putri, Rahma Lia Rahmat Iman Mainil Rahmi Dewi Rakhmawati Farma Reza Asrian Ridwan Abdurrahman Ridwan, Hafidz Abrar Rika Taslim Romy Romy Rudi Hartono Samuel Siregar Saragih, Krist Mamre Sari, Annisa Wulan Sibuea, Edwin Reinaldy Sihombing, Tikkos Sinaga, Tomi Siregar, Ansor Salim Sitompul, Nathaniel Andrew Sahala Somadona, Sonia Stevan Graciano Boyana Subekti, Mohammad Sunny Ineza Putri Surianto, Muhammad Akbar Syafri Syafri Tikkos Sihombing Tino Ferinando GS Tomi Sinaga Tri Bambang Lesmana Wahyudi, Wandi Warman Fatra, Warman Windy Lusia Samosir Wulan Sari, Annisa Yogi Wibowo Agusta Yogi Wibowo Agusta