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All Journal Elkawnie Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal JOURNAL OF SCIENCE AND SOCIAL RESEARCH Menara: Jurnal Teknik Sipil Journal of Technomaterial Physics IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Jurnal Pengabdian Masyarakat dan Riset Pendidikan Jurnal Polimesin
Moraida Hasanah
Department Of Mechanical Engineering, Universitas Asahan, Kisaran, North Sumatra, Indonesia
Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Pengaruh Variasi Temperatur Sumber Panas Terhadap Temperatur Udara Dalam Heater Mesin Stirling Siregar, Zufri Hasrudy; Jufrizal; Hasanah, Moraida; Muhammad Dendy Agusdiandy
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 1 No 1 (2022): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (530.348 KB) | DOI: 10.56862/irajtma.v1i1.1

Abstract

This research is focused on testing the heat transfer rate from the heat source to the Stirling engine heater. The test was carried out on the Stirling engine heater as a cylindrical tube. This study aims to determine the effect of variations in the heat source's temperature on the heater's air temperature. This test was carried out on a Stirling engine with a gamma-type mechanical configuration. The heat source temperature varied in 3 categories, namely between 860-900℃ (I), 780-850℃ (II), and 710-779℃ (III). there were 3 temperature positions measured, namely the temperature of the heat source, the temperature of the outer wall of the heater, and the temperature of the air in the heater. The fuel used for the heat source is liquefied petroleum gas (LPG). The research results for the heat source temperature in categories I, II, and III resulted in the average temperature on the outside heater wall being 729.8°C, 659.6°C, and 591.3°C, respectively. While the average air temperature in the heater for categories I, II, and III, respectively, is 201.7°C, 130.1°C, and 114.8°C. The 3 variations of heat source temperature show that the given heat source temperature value is very influential and directly proportional to the temperature inside the heater.
Effect of Annealing Temperature on Mechanical Properties of AISI 1045 Carbon Steel Moraida Hasanah; Susilawati, Susilawati; Zahar, Intan; Mulyadi, Yadi; Rahmadsyah, Rahmadsyah
Journal of Technomaterial Physics Vol. 6 No. 1 (2024): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v6i1.15428

Abstract

Research on the effect of of annealing temperature variations on the mechanical properties of AISI 1045 carbon steel has been conducted by varying the annealing temperatures. The samples used in this study had a diameter of 20 mm and a length of 30 mm. Since AISI 1045 steel is very important in the manufacturing industry, extensive research and development. This study aims to analyze the microstructure formed during the annealing process at different temperatures, to determine the impact of annealing temperature on the hardness values of AISI 1045 steel, and to evaluate the corrosion rate of the steel. The samples were heated in a furnace for 1 hour at temperatures of 250°C, 500°C, 750°C, and 1000°C. After removal from the furnace, the samples were returned to room temperature. Subsequently, hardness tests, corrosion rate tests, and microstructural observations were conducted using a Scanning Electron Microscope (SEM). The results indicated that a hardness of 119.3 HRC could be achieved at 500°C, and a corrosion rate of 0.0014 mm/y could be achieved at 1000°C. The values obtained from these tests, supported by the SEM observations, suggest that AISI 1045 carbon steel exhibits good mechanical properties after the annealing process.
Analisis Kebutuhan Air Bersih PDAM Tirta Kualo di Kecamatan Datuk Z, Fynnisa; Irwansyah, Muhammad; Hasanah, Moraida; Siregar, Zuraidah; P, Sophia Az Zahra; Aprilia, Risma
Menara: Jurnal Teknik Sipil Vol. 19 No. 1 (2024): Menara : Jurnal Teknik Sipil
Publisher : Teknik Sipil, Fakultas Teknik Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jmenara.v19i1.36029

Abstract

Water is one of the most vital sources of livelihood for all living things on earth. However, not all people have the ability to process water. Datuk Bandar District is one of the areas that has a large number of residents and facilities for schools, offices and other public facilities. In this study, we analyze the demand for domestic and non-domestic clean water in Datuk Bandar District for the next 20 years by projecting the need for population growth until 2041 based on data from the Central Statistics Agency. The method used in this study is the method of arithmetic, geometry, and least square. From the results of the analysis, the projected population of Datuk Bandar Subdistrict in 2041 using the geometric method is 81,670 people and the projected clean water needs of 85,105 l/second, while for now the production capacity of PDAM Tirta Kualo for Datuk Bandar Subdistrict is in WTP II service, namely of 90 l/sec. so that until 2041 the need for clean water for Datuk Bandar District is still fulfilled.
Effectiveness of Ozone Plasma Technology in Enhancing the Survival of Gourami (Osphronemus goramy) Fish Eggs Zahar, Intan; Sari, Dian Puspita; Hasanah, Moraida; Z, Fynnisa
Journal of Technomaterial Physics Vol. 7 No. 1 (2025): Journal of Technomaterial Physics
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jotp.v7i1.19860

Abstract

The gourami (Osphronemus goramy) fish is a freshwater fish commonly found in Asia and widely cultivated by fish farmers or local inhabitants. The survival rate of gourami fish from egg to larva and juvenile stages is very low, at approximately 50%. Several factors, such as unstable environmental conditions, poor water quality, and fungal growth on the eggs, cause this. Typically, synthetic medications or natural materials such as betel leaves and others are used to improve gourami fry's survival rate. In this study, the researchers attempted to apply ozone plasma technology dissolved in water to observe the egg hatchability of gourami fish. This study aims to apply technology in fisheries and aquatic sciences. The results of the study show that ozone technology can be applied to observe larval survival, with the highest survival rates found in the 10-minute and 15-minute ozone treatments, both achieving 100% hatchability, with larval survival rates of 86.67% and 96.66%, respectively.
Seminar dan Pelatihan Arduino Berbasis Proyek Virtual Menggunakan Proteus sebagai Upaya Peningkatan Literasi Teknologi di SMK Negeri 1 Tanjung Tiram : Penelitian Intan Zahar; Moraida Hasanah; Fynnisa Z; Derliana Hasibuan; Siti Ramadani; Dilla Atika Sury; Laura gusti Ayunda; Ali Usman; Sadun
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 1 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 1 (Juli 2025 -
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i1.2837

Abstract

The development of digital technology in the Industrial Revolution 4.0 era requires vocational high school students to have strong technological literacy (Budiman & Ramdhani, 2022). However, limited hardware is a barrier, especially in the practice of Arduino microcontrollers (Lestari & Putra, 2020). This study aims to improve students' technological literacy through seminars and simulation training using Proteus software. A qualitative descriptive method was applied to 40 students majoring in Computer Engineering (TKJ) and Electronics at SMK Negeri 1 Tanjung Tiram. Activities included a basic Arduino seminar, simulation training on an Arduino Uno project using the HC-SR04 ultrasonic sensor, and evaluation through observation, tests, and questionnaires. The results showed that students were able to understand input-output, write simple code, and design virtual circuits (Santoso et al., 2023). They also experienced improvements in analysis, problem-solving, and learning motivation. The majority of participants considered the simulation easier to understand and encouraged interest in innovation (Karim & Yuliana, 2023). Thus, the use of Proteus effectively improves students' understanding and skills, while also being a solution to the limited practical facilities in vocational schools (Yusuf & Anwar, 2024).
Penjernihan Air Sungai Silau Skala Rumah Tangga Kabupaten Asahan Dengan Metode Elektrokoagulasi Hasanah, Moraida; Z, Fynnisa; Zahar, Intan; Rahmadsyah, Rahmadsyah; Harmayani, Harmayani; Saktisahdan, T Jukdin
Jurdimas (Jurnal Pengabdian Kepada Masyarakat) Royal Vol. 6 No. 3 (2023): Juli 2023
Publisher : STMIK Royal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33330/jurdimas.v6i3.2417

Abstract

challenge that frequently affects daily life. Generally, the community faces water sources that are discolored, oily, and emit unpleasant odors due to their origins as former rice fields or peat soil. Clean water is one of the main needs for humans for survival and is a determining factor in public health and welfare. Making clean water sources in Sidomulyo Village using the electrocoagulation method is one solution that can be offered. The electrocoagulation method involves utilizing electrical energy to coagulate and remove fine particles from water. By conducting simulations or raising awareness among the public about this method, it aims to provide assistance to the community while promoting understanding of how the electrocoagulation process can be used to purify contaminated water sources, addressing issues such as water discoloration, oiliness, and unpleasant odor. Keywords: clean water; polluted water; electrocoagulation method  Abstrak : Masalah air bersih di Desa Sidomulyo terus menjadi isu yang sering muncul dalam kehidupan sehari-hari. Secara umum, air yang digunakan oleh masyarakat di desa tersebut memiliki warna coklat kekuningan, terkontaminasi oleh minyak, dan memiliki aroma yang tidak sedap. Hal ini terjadi karena sumber air yang digunakan berasal dari bekas lahan pertanian sawah atau tanah gambut. Keberadaan air bersih sangat penting bagi kehidupan manusia dan berperan krusial dalam menjaga kesehatan dan kesejahteraan masyarakat. Salah satu solusi yang dapat diterapkan untuk menciptakan sumber air bersih di Desa Sidomulyo adalah dengan menggunakan metode elektrokoagulasi. Metode elektrokoagulasi adalah proses penggumpalan dan pengendapan partikel-partikel halus dalam air dengan menggunakan energi listrik. Diharapkan dengan melakukan simulasi atau penyuluhan kepada masyarakat tentang metode elektrokoagulasi, maka masyarakat dapat terbantu sekaligus memahami tentang aplikasi metode elektrokoagulasi untuk penjernihan sumber air yang tercemar seperti warna air yang kuning kecoklatan, berminyak, dan berbau. Kata kunci : air bersih; air tercemar; metode elektrokoagulasi
Physical and mechanical properties of fiberboard made from corn cob and coconut fiber with natural adhesives Hasanah, Moraida; Marlina, Hilda Ayu; Zahar, Intan; Kadir, Abdul Azis
Jurnal Polimesin Vol 22, No 2 (2024): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i2.4915

Abstract

Developing fiberboard from agro-industrial and natural waste has a significant impact on environmental practices. Fiberboards made from corncobs and coconut fiber have become a desirable by-product that can serve as a wood substitute. This research aims to analyze the physical and mechanical properties of fiberboard composites created from coconut husks and corn cobs, using natural adhesives like tapioca glue and citric acid. Corn cob particles and coconut fruit fibers were weighed in a 1:1 ratio. Tapioca glue or citric acid was then added in varying percentages: 10%, 14%, 18%, 22%, and 26% of the total mixture. This blend was poured into molds, spread evenly with a spatula, and pressed under 30 kg/cm² (426.7 psi). Subsequently, the samples were carefully removed for physical and mechanical testing. The findings of the study indicated that the different mass variations of corncobs and coconut fibers mixed with natural adhesives successfully produced fiber composites that met the Japanese Industrial Standards (JIS) A 5095:2003 for the "hardboard" classification. The most effective composition was found in sample A5, which contained 26% tapioca glue. Tapioca glue proved to be the superior natural adhesive, surpassing citric acid. Tests conducted on fiberboard A5 revealed the highest density at 0.90 gr/cm³, the lowest porosity at 7.35%, optimal impact strength at 119.99 J/m², tensile strength of 730.50 MPa, and flexural strength of 109.34 MPa. Therefore, this fiberboard demonstrated favorable physical and mechanical properties.
PERBANDINGAN PERPINDAHAN DAYA PADA MESIN PEMERAS KELAPA Rahmadsyah, Rahmadsyah; Hasanah, Moraida; Bara, Aulia Akbar Batu; Sadun, Sadun; Fauzi, Mhd; Azhar, Muhammad
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 9, No 1 (2026): February 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i1.5780

Abstract

Abstract : This study aims to analyze and compare theoretical and actual power transfer in a coconut squeezer machine to determine the efficiency of the transmission system used. This coconut squeezer machine is designed using a 220 V electric motor with a rotational speed of 4500 rpm connected to a transmission system consisting of a pulley, a V-belt (type M33), and a gearbox with a reduction ratio of 1:30. This power transmission process results in a reduction in rotational speed from the motor to the screw press shaft, which functions to squeeze the coconuts into coconut milk. The research method used was theoretical computation based on the mechanical parameters of the transmission components and comparative analysis with actual test results. The calculation data included theoretical motor power, output power at the screw press shaft, torque, and transmission system efficiency. The calculation results showed that the theoretical motor power was 280 Watts, while the actual power at the screw press shaft was 239.4 Watts. A power loss of 40.6 watts, or approximately 14.5%, occurred due to V-belt inaccuracy, slippage, and mechanical losses in the gearbox. The total efficiency of the transmission system was 85.5%, indicating adequate mechanical performance. Based on the analysis, this coconut press machine is capable of operating well and stably for both household and industrial applications. Keywords: Power Transfer, EFFiciency, Coconut Press Machine, Mechanical Transmission, Gearbox, V-Belt, Electric Motor Abstrak : Penelitian ini bertujuan untuk menganalisis dan membandingkan peralihan daya teoritis dan daya aktual pada mesin pemeras kelapa, guna mengetahui tingkat efisiensi sistem transmisi yang digunakan. Mesin pemeras kelapa ini dirancang menggunakan motor listrik bertenaga 220 V dengan kecepatan putar 4500 rpm yang dihubungkan ke sistem transmisi berupa pulley, sabuk-V (V-belt tipe M33), dan gearbox dengan rasio reduksi 1:30. Proses transmisi daya ini menghasilkan penurunan putaran dari motor menuju poros ulir press yang berfungsi untuk memeras kelapa menjadi santan. Metode penelitian yang digunakan adalah komputasi teoritis berdasarkan parameter mekanik komponen transmisi serta analisis perbandingan dengan hasil pengujian aktual. Data perhitungan meliputi daya teoritis motor, daya keluaran pada poros ulir press, torsi, dan efisiensi sistem transmisi. Hasil perhitungan menunjukkan bahwa daya teoritis motor sebesar 280 Watt, sedangkan daya aktual pada poros ulir press sebesar 239,4 Watt. terjadi kehilangan daya sebesar 40,6 Watt atau sekitar 14,5% akibat akurasi pada V-belt, slip, serta rugi mekanis pada gearbox. Efisiensi total sistem transmisi diperoleh sebesar 85,5%, yang menunjukkan bahwa sistem mekanik bekerja cukup Berdasarkan hasil analisa, mesin pemeras kelapa ini mampu bekerja dengan baik dan stabil untuk skala rumah tangga maupun industri. Kata Kunci: Perpindahan Daya, Efisiensi, Mesin Pemeras Kelapa, Transmisi Mekanik, Gearbox, V – Belt, Motor Listrik.
Utilizing Bulu Clam Shell and Sikacim Concrete as Partial Cement Replacement in Porous Concrete Production Z, Fynnisa; Muhammad Irwansyah; Moraida Hasanah; Nur Haliza; Sophia Az-Zahra P
Elkawnie Vol. 11 No. 2 (2025)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v11i2.31991

Abstract

Abstract: The novelty of this research lies in the utilization of waste from bulu clam shells, which are abundantly found in Batu Bara Regency, North Sumatra, Indonesia, combined with Sikacim as a partial substitute for cement in the production of pervious concrete. Bulu clam shells are waste materials with a high calcium carbonate (CaO) content. The development of compressive strength and porosity characteristics of pervious concrete is the main objective of this study. Therefore, this research employs bulu clam shell waste and Sikacim as partial replacements for cement in the production of pervious concrete to minimize the environmental impact of waste. The methodology refers to ACI 522R-10 with a curing age of 28 days. The test specimens were cylindrical with a diameter of 15 cm and a height of 30 cm. The mix variations of pervious concrete in comparison to cement:shell:Sikacim were (100:0:0; 95:5:0; 95:0:5; 90:10:0; 90:0:10; 90:5:5)%. SEM analysis indicates that bulu clam shell waste exhibits a characteristic aragonite morphology, marked by needle-like and rough surface textures. XRF analysis shows that bulu clam shell waste has significant potential for various industrial applications due to its high CaO content and the presence of other supporting elements such as Al₂O₃ and SiO₂. The porosity test results of pervious concrete show that the addition of Sikacim tends to increase porosity, particularly at a dosage of 5%, reaching 27.3%. In contrast, the addition of bulu clam shell waste reduces porosity due to its ability to fill micro-pores. The compressive strength test results demonstrate that bulu clam shell waste is highly effective in increasing the compressive strength of pervious concrete, especially at a 10% composition, achieving 8.86 MPa, which represents a 1.7% increase compared to normal concrete. It can be concluded that bulu clam shell waste has strong potential for the development of the construction industry, as it can partially replace cement while also serving as a more environmentally friendly concrete material. Abstrak: Penelitian Kebaruan penelitian adalah memanfaatkan limbah dari cangkang kerang bulu, yang banyak ditemukan di Kabupaten Batu Bara, Sumatera Utara, Indonesia, ditambah dengan sikacim sebagai pengganti sebagian penggunaan semen pada pembuatan beton berpori. Pengembangan sifat kuat tekan dan porositas beton berpori merupakan tujuan penelitian, sehingga penelitian memanfaatkan limbah cangkang kerang bulu dan Sikacim sebagai pengganti sebagian semen dalam produksi beton berpori untuk meminimalkan dampak lingkungan dari limbah. Metode yang digunakan mengacu pada ACI 522R-10, dengan umur pengujian 28 hari. Sampel uji berbentuk silinder, dengan diameter 15 cm dan tinggi 30 cm. Hasil pengujian SEM menunjukkan cangkang kerang bulu memiliki morfologi aragonit yang khas, ditandai dengan tekstur seperti jarum dan kasar. Analisis XRF menunjukkan cangkang kerang memiliki potensi signifikan untuk berbagai aplikasi industri karena kandungan CaO yang tinggi dan adanya unsur pendukung lainnya seperti Al₂O₃ dan SiO₂. Uji porositas beton berpori menunjukkan penambahan Sikacim cenderung meningkatkan porositas, terutama pada dosis 5% sebesar 27,3%. Penambahan cangkang kerang bulu mengurangi porositas karena kemampuannya mengisi pori-pori mikro. Hasil uji kekuatan tekan menunjukkan cangkang kerang bulu sangat efektif dalam meningkatkan kekuatan tekan beton berpori, khususnya pada komposisi 10%, sebesar 8,86 Mpa, meningkat sebesar 1,7% dari nilai beton normal. Hasil penelitian dapat disimpulkan bahwa limbah cangkang kerang bulu memiliki potensi dalam pengembangan industri konstruksi, karena dapat sebagian menggantikan semen sekaligus berfungsi sebagai material beton yang lebih ramah lingkungan.
Co-Authors Ali Usman Aprilia, Risma Bara, Aulia Akbar Batu Derliana Hasibuan Dian Puspita Sari Dilla Atika Sury Fauzi, Mhd Fynnisa Zebua Hilda Ayu Marlina Intan Zahar Jufrizal Jufrizal Kadir, Abdul Azis Laura Gusti Ayunda Muhammad Azhar Muhammad Dendy Agusdiandy Muhammad Irwansyah Muhammad Irwansyah, Muhammad Nur Haliza P, Sophia Az Zahra Rahmadsyah, Rahmadsyah Sadun Sadun, Sadun Saktisahdan, T Jukdin Siregar, Zufri Hasrudy Siregar, Zuraidah Siti Ramadani Sophia Az-Zahra P Yadi Mulyadi Z, Fynnisa Zahar, Intan