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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Pengabdian UntukMu NegeRI CHEESA: Chemical Engineering Research Articles JURNAL PHOTON Jurnal Teknik Kimia Jurnal Teknik Mesin Specta Journal of Technology Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Surya Teknika Journal of Mechanical Design and Testing (JMDT) METAL : Jurnal Sistem Mekanik dan Termal BATOBO: Jurnal Pengabdian Kepada Masyarakat Jurnal Polimesin
Abrar Ridwan
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Muhammadiyah Riau. Jl. Tuanku Tambusai, Pekanbaru, Riau 28294
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PELATIHAN HEAT TREATMENT SEDERHANA UNTUK SISWA SMK SE-PEKANBARU Budi Istana; Sunaryo Sunaryo; Ahmad Kafrawi Nasution; Abrar Ridwan; Legisnal Hakim; Lega Putri Utami
Jurnal Pengabdian UntukMu NegeRI Vol 1 No 2 (2017): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (590.271 KB) | DOI: 10.37859/jpumri.v1i2.224

Abstract

Industri pengecoran logam umumnya menggunakan baja karbon sebagai bahan baku utama. Hal ini disebabkan oleh besarnya kebutuhan industri terutama industri pengolahan kelapa sawit, kertas dan industri lainnya terhadap komponen mesin yang diproduksi dengan teknik pengecoran logam. Banyak dipakainya baja karbon pada industri tersebut mengakibatkan bahan tersebut harus mengalami penyesuaian pada sifat mekanis yang diinginkan oleh pemakainya, salah satu langkah yang dapat diambil adalah dengan melakukan proses perlakuan panas, proses ini akan sangat bergantung pada komposisi kimia bahan, suhu pemanasan, waktu penahanan (hold time) dan kecepatan pendinginan (cooling rates). Kegiatan Pengabdian ini bertujuan untuk memberikan pengetahuan kepada siswa SMK di lingkungan kampus tentang pengaruh proses pendinginan paska perlakuan panas terhadap sifat mekanik logam terutama nilai kekerasannya. Kegiatan ini diharapkan dapat menjadi motivasi bagi siswa dalam mempelajari ilmu metalurgi.
Solar Drying Technology in Indonesia: an Overview Ahmad Fudholi; Abrar Ridwan; Rado Yendra; Ari Pani Desvina; Hartono Hartono; Majid Khan Bin Majahar Ali; Tri Suyono; Kamaruzzaman Sopian
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 9, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (445.833 KB) | DOI: 10.11591/ijpeds.v9.i4.pp1804-1813

Abstract

The most important benefit of solar energy is renewable and low pollutant source of energy (clean energy). Solar energy technology and research are developing fast and much of the technology needed for these applications in industry and agricultures is already available. Solar drying technology (SDT) is one of the most attractive and promising applications of solar energy technology. In this paper, the various performances of SDTs in Indonesia are summarized with details. Generally, the cabinet-type and tunnel-type SDTs are remarkably well suited to drying small quantities of vegetables and fruit on the household scale. Greenhouse and hybrid SDTs are suitable for use on a large scale by industries.
PELATIHAN PENELITIAN TINDAKAN KELAS (PTK) BAGI GURU SMKN 1 KECAMATAN MEMPURA KABUPATEN SIAK Lega Putri Utami; Legisnal Hakim; Ahmad Kafrawi Nasution; Sunaryo Sunaryo; Abrar Ridwan; Budi Istana; Afdhal Afdhal; Ridwan Abdurahman
Jurnal Pengabdian UntukMu NegeRI Vol 3 No 1 (2019): Pengabdian Untuk Mu negeRI
Publisher : LPPM UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (143.392 KB) | DOI: 10.37859/jpumri.v3i1.1108

Abstract

Classroom Action Research (CAR) is research conducted by teachers in their own class by planning, implementing and reflecting actions collaboratively and participatively with the aim of improving performance as a teacher so that student learning outcomes can improve. Thus PTK can facilitate teachers to develop an understanding of pedagogy in order to improve their learning. This training also invites teacher friends to step into various records that after being processed can manifest into a quality study. Carry out research on what is done daily by a teacher who can finally produce a work called PTK. This can happen if a general sequence of procedures, which starts from the identification of research problems encountered until the final report is recorded. So, it is very important that this procedure is understood and adhered to by the teacher who is researching. The overall service activities are quite good in terms of the target number of participants and enthusiasm in receiving the material provided.
Overview of Photovoltaic Thermal (PVT) Water Collector Ahmad Fudholi; Nur Farhana Mohd Razali; Abrar Ridwan; Rado Yendra; Hartono Hartono; Ari Pani Desvina; Majid Khan Bin Majahar Ali; Kamaruzzaman Sopian
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 9, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v9.i4.pp1891-1898

Abstract

The popular solar technology is the integration of solar thermal technology and photovoltaic (PV), called photovoltaic thermal (PVT) technology. This technology converts solar energy to electrical and thermal energy. The efficiency of solar energy conversion via PVT is higher than photovoltaic and solar systems. PV cell efficiency decreases if system operating temperature is higher. Therefore, solar systems attached to PV cells act to cool PV cells and increase the overall efficiency of the PVT system. PVT construction that saves space, is suitable for domestic consumption, and long-term saving costs makes PVT current research by researchers in the latest energy technology. This review presents descriptions and previous works conducted on performances analysis of PVT water collector. Results on the performances of PVT water collectors are summarized. The energy and exergy efficiency of PVT water collector ranges from 28.5% to 85% and 6.8% to 14%, respectively.
The Effect of The Solar Heat Flux to The Optimized Solar Chimney Power Plant: An Experimental Study Hery Mada Indra Paska; Adhika Widyaparaga; F Fauzun; Abrar Ridwan; Ridwan Abdurrahman
Journal of Mechanical Design and Testing Vol 2, No 1 (2020): Articles
Publisher : Departemen Teknik Mesin dan Industri, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (86.878 KB) | DOI: 10.22146/jmdt.52700

Abstract

The Solar Chimney Power Plant (SCPP) is an energy conversion system that would absorb solar thermal energy and convert heat air into electrical energy using a collector. The main disadvantage of the  SCPP is that low efficiency because less solar heat flux can be converted to the electrical power affected by the design of the SCPP. This study was designed the SCPP by theoretical calculation for producing electrical power and experimented by designing the SCPP use a chimney with divergent shape, a collector with convergent shape, a turbine generator with 3 blades, and coating some materials at the collector’s ground to increasing the electrical power. The purpose of this work was to study about the impact of the solar heat flux ( ) to the temperature of air, to the velocity of air, to the power electricity and compare between power generated from theoretical calculations design and the experiments result. The result showed that the SCPP with the optimized design affect the performance of the SCPP’s output power. The power generated in this experiment is 0.1 Watt. That value is greater than output power from theoretical calculations about 42.8% for the same input solar heat flux ( ) 1118 W/m2 both for theoritical and experimental.
Perencanaan Sudu Turbin Angin Untwisted Kapasitas 300 Watt Menggunakan NACA 4417 Abrar Ridwan
Jurnal Surya Teknika Vol 5 No 01 (2017): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v5i01.605

Abstract

Pemanfaatan energi berkelanjutan merupakan usaha yang tidak pernah berhenti dilakukan oleh ilmuwan dan praktisi, salah satunya pembangkit listrik turbin angin. Potensi angin diatas gedung rektorat lantai 7 Universitas Muhammadiyah Riau berkisar 4 – 7 m/s dan nilai tersebut sangat berpotensi untuk membantu suplai daya listrik ke gedung tersebut. Telah dilakukan perencanan dimensi sudu turbin dan bentuk aerofoil dengan referensi NACA 4417 berkapasitas daya 300 watt, radius sudu turbin 2,4 meter dengan tipe untwisted didapat nilai chord dipangkal (root) 0,730 m dan diujung (tip) 0,124 m sedangkan ketebalan maksimum chord dipangkal 0,186 m dan diujung 0,015 m. Gaya maksimum aksial turbin adalah 119 N. Bentuk disain akan menjadi parameter pembuatan sudu turbin berbahan baku unggulan lokal berupa limbah pelepah sawit.
Simulasi Perhitungan Unjuk Kerja / Performansi Boiler Pembangkit Listrik Tenaga Uap Berbahan Bakar Batu Bara abrar ridwan; legisnal hakim; budi istana; lobertus gunawan hasugian
Jurnal Surya Teknika Vol 1 No 04 (2016): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v1i04.1185

Abstract

Perencanaan operasional yang tepat perlu dilakukan untuk meningkatkan efektifitas kerja PLTU Tanjung Balai Karimun karena berpengaruh langsung pada biaya operasional yang dikeluarkan oleh perusahaan. Performance setiap peralatan utama di PLTU khususnya Boiler perlu menjadi perhatian karena dari nilai efesiensi ini dapat dilihat langsung apakah sebuah pembangkit dapat dikatakan layak atau tidak untuk beroperasi. Semakin tinggi nilai efesiensi dari sebuah boiler maka unjuk kerjanya di lapangan juga bagus. Tujuan penelitian ini adalah Menghitung performance boiler dengan metode tidak langsung sesuai standar ASME PTC-4-1 Power Test Code Steam Generating Units sehingga dapat mengetahui neraca bahan dan energi yang lengkap untuk setiap aliran, yang dapat memudahkan dalam mengidentifikasi opsi-opsi untuk meningkatkan efisiensi boiler dan untuk memudahkan perhitungan efesiensi boiler dibuat software perhitungan yang dibangun berbasis macromedia flash. Dengan memasukkan data yang diambil langsung dari hasil pengujian performance di PLTU Tanjung Balai Karimun dihasilkan efisiensi boiler sebesar 82,7 %, dan Hasil perhitungan menggunakan aplikasi simulasi perhitungan ditemukan losses pada gas buang sebesar 5,14 %, loosses pada hidrogen in fuel sebesar 5,34 %, losses akibat moisture in fuel sebesar 5,47 %, losses pada moisture in air sebesar 0,21 %, losses akibat pembakaran tidak sempurna sebesar 0,07 %, losses akibat radiasi dan konveksi sebesar 1,05 % dan losses akibat batu bara tidak terbakar pada fly ash sebesar 0,00008% dan losses akibat batu bara tidak terbakar pada bottom ash sebesar 0,00021%
Perancangan Mesin Penghalus Tempurung Biji Buah Kelapa Sawit(Endocarp Crusher Hammer Mill) Untuk Komposisi Bahan Bakar Alternatif Legisnal Hakim; Japri; Abrar Ridwan
Jurnal Surya Teknika Vol 6 No 1 (2019): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (377.432 KB) | DOI: 10.37859/jst.v6i1.1868

Abstract

Pellet biomassa adalah suatu batangan yang mudah terbakar serta dapat mempertahankan nyala api dan dapat digunakan sebagai bahan bakar untuk penyalaan ketel uap mini. Dalam pembuatan pellet biomassa yang berkualitas sangat dipengaruhi oleh komposisi bahan yang terdiri atas campuran 80% fiber kelapa sawit dan 20% hancuran kulit tempurung buah kelapa sawit yang dipress dengan menggunakan screw press. Kendala yang didapatkan pada saat memproduksi pellet biomassa adalah partikel size untuk pecahan kulit tempurung buah kelapa sawit yang masih memiliki ukuran yang besar sehingga tidak menghasilkan kriteria pellet biomassa yang diharapkan, maka dilakukan perancangan untuk unit mesin yang dapat memperkecil ukuran pecahan kulit tempurung buah kelapa sawit, alat ini dinamai dengan endocarp crusher hammer mill. Mesin ini menggunakan gaya impact dari hammer mill untuk memukul pecahan kulit tempurung buah kelapa sawit menggunakan energy dari elektrik motor kapasitas 0,5 HP putaran rotor untuk hammer mill adalah 800 rpm dengan nilai hancuran kulit tempurung kelapa sawit adalah 7 mesh
STUDI KERUSAKAN HIGH PRESSURE TURBINE VANE PESAWAT ATR72-500 WINGS AIR DI BANDARA SULTAN SYARIF KASIIM II PEKANBARU Muhammad Desmico Ekta W; Abrar Ridwan
Jurnal Surya Teknika Vol 7 No 1 (2020): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v7i1.2357

Abstract

The aircraft can fly as there is a thrust from the engine that causes the aircraft to have speed. The components of the aircraft engines are compressor, combustion chamber, turbine and propeller. High pressure turbine vanes is a component in the Hot section or turbine section that serves to direct the hot gas flow from the combustion chamber to the turbine. The purpose to be achieved in this research is to analyze and find out the cause of high pressure turbine vane damage and know the gas engine efficiency PW127. Cause of damage due to treatment not done according to the schedule until the phenomenon of overtemperature after combustion chamber and the content of impurities in the water laundering results. After the Brayton cycle calculation is obtained the temperature value of the turbine entry 1563oC (1836 K). These results exceed the turbine inlet temperature according to manual maintenance engine. Based on laboratory test, the content of 250 mg/m2 sulfur and 1800 mg/m2 chloride is obtained. This content causes damage by erosion or corrosion of high pressure turbine vane components. The value of gas efficiency is 42% according to the outside Air tempetarure. The thermal efficiency of gases will increase with increasing temperature conditions.
Studi Kasus Penurunan Kehilangan Air Pada Sistem Distribusi Air PDAM di DMA Pondok Mutiara Payung Sekaki Dengan Metode Steptest Muhammad Nawa Syarif; Abrar Ridwan
Jurnal Surya Teknika Vol 7 No 1 (2020): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v7i1.2360

Abstract

DMA (District Meter Area) Pondok Mutiara is the service area of ​​PDAM Kota Pekanbaru which is indicated to have a high level of water leakage due to the age of the pipes and the unstable land contours in the area, the problem now is that the PDAM does not know the actual leakage value, the purpose This study is to measure the value of leakage and look for leakage points with the steptest method, and make strategies to reduce water loss in DMA Pondok Mutiara by performing maintenance assets on a regular basis to minimize leakage in the DMA pipeline network, Making plans to re-arrange pipeline networks based on existing standardization (SNI 7511: 2011), conducts routine steptest activities so that they can monitor the level of real leakage and can be responsive in dealing with leaks. Based on research that has been done, the leakage value at Pondok Mutiara DMA is 2.66 liters / second and found 4 leak points, namely 1 leakage point in area 1, 2 leakage points in area 6, and 1 leakage point in area 7.
Co-Authors -, Mintarto Adhika Widyaparaga Afdhal Afdhal Ahmad Fudholi Ahmad Kafrawi Nasution Ahmad Kafrawi Nasution, Ahmad Kafrawi Arfie I. Firmansyah Ari Pani Desvina Ari Pani Desvina Aris Fiatno Athala, Azzalya Putri Awaludin Marti Awaludin Martin Azzalya Putri Athala Budi Istana Dalilla, Faizan Erwanto, Eka Faizan Dalilla Fauzun Fauzun Firmansyah, Arfie I. Hamzah, Munawir Hartono Hartono Hartono Hartono Hery Mada Indra Paska Japri Kamaruzzaman Sopian Laras S Widara Lega Putri Utami Legisnal Hakim lobertus gunawan hasugian Mahendra, Rain Agri Majid Khan Bin Majahar Ali Majid Khan Bin Majahar Ali Mariyam Fazleena Musthafa Meka, Wahyu Muhammad Desmico Ekta W Muhammad Kunta Biddinika Muhammad Nawa Syarif Munawir Hamzah Mursyidah Umar Mursyidah Umar, Mursyidah Nasruddin - Nur Farhana Mohd Razali Rahmadeni Rahmadeni Rain A Mahendra Rezeki, Tri Nur Ridwan Abdurahman Ridwan Abdurrahman Rilnanda, Ade Sitompul, Izazul Kafitra Sunaryo Sunaryo Sunaryo Sunaryo Tri N Rezeki Tri Suyono Wahyu Meka Widara, Laras Sita Yendra, Rado Yulia Fitri Yulia Fitri