Articles
<![CDATA[Convective Coefficient and Evaporative in Forced Flow Solar Still ]]>
<![CDATA[Oktavian, Akbar]]>;
<![CDATA[Mugisidi, Dan]]>;
<![CDATA[Alamsyach, Rizky]]>;
<![CDATA[Heriyani, Oktarina]]>
<![CDATA[ Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 6 Nomor 2 Tahun 2024 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Pancasila ]]>
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DOI: 10.35814/asiimetrik.v6i2.6937
<![CDATA[The water crisis is a significant global problem, with more than 2 billion people lacking water and 1.1 billion having no access to clean water. Desalination, a method of converting seawater into fresh water by removing salt, is a potential solution to help coastal populations. This study aims to determine the convection and evaporation heat transfer coefficients and the effect of condenser cooling water temperature on the evaporation process and the increase in freshwater condensate. The research methodology involved the analysis of heat and mass transfer in a solar desalination system. A desalination device was designed to test the evaporation process with seawater temperature heated using halogen lamp light. Results show that increasing seawater temperature from 27°C to 42°C results in condensation when the temperature reaches about 30°C, affecting the water surface pressure and evaporation rate. Evaporation and condensation efficiencies are affected by convection and evaporation heat transfer, resulting in a convection heat transfer (0.84296 W/m2. °C) and evaporation heat transfer coefficient (23.81353 W/m2.°C). This research demonstrates the potential of solar desalination technology in producing clean water.]]>
<![CDATA[Effect of air velocity variation on hardness vickers of 6061 aluminum TIG welding joints ]]>
<![CDATA[Riyan Ariyansah]]>;
<![CDATA[Dan Mugisidi]]>
<![CDATA[ JTTM : Jurnal Terapan Teknik Mesin Vol 5 No 2 (2024): JTTM: Jurnal Terapan Teknik Mesin ]]>
Publisher : <![CDATA[Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi ]]>
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DOI: 10.37373/jttm.v5i2.1018
<![CDATA[Aluminum 6061, a commonly used metal, demands critical attention in welding due to its mechanical properties influencing structural strength. The welding of aluminum 6061 is affected by various factors, including air velocity conditions during the welding process. This research objectives to analyze Vickers hardness values in TIG-welded Aluminum 6061. The research focuses on TIG welding of aluminum 6061, analyzing the impact of air velocity variations in the welding environment on hardness values. The experimental design considers air velocity variations at 3.6 km/h, 4 km/h, and 5 km/h during TIG welding of aluminum 6061. Specimens from each research variable undergo Vickers hardness testing to analyze the correlation between air velocity variations and Vickers hardness values. Research findings reveal specimen 1 with an average hardness of 96 HV, specimen 2 at 105 HV, and specimen 3 at 110 HV. These differences depict hardness variations among specimens, emphasizing the complexity of air velocity variations' effect on welded joints' hardness. Hardness testing results consistently show the lowest hardness values at point number 2, while the highest values for specimens 1 and 2 are at point number 6. However, specimen 3 exhibits the highest hardness at point number 8. The research concludes that air velocity variations in the welding environment significantly impact hardness values in the welding results. Vickers hardness testing indicates an increase in hardness values with increasing air velocity, highlighting a proportional relationship between air velocity variations and hardness values]]>
<![CDATA[Effect of blade cap variation on overshot pinwheel performance ]]>
<![CDATA[Giri Parwatmoko]]>;
<![CDATA[Dan Mugisidi]]>;
<![CDATA[Rizki Afif Afandi]]>;
<![CDATA[Oktarina Heriyani]]>
<![CDATA[ JTTM : Jurnal Terapan Teknik Mesin Vol 6 No 1 (2025): JTTM: Jurnal Terapan Teknik Mesin ]]>
Publisher : <![CDATA[Teknik Mesin - Universitas Muhammadiyah Cileungsi ]]>
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DOI: 10.37373/jttm.v6i1.1272
<![CDATA[Waterwheels are a medium for producing electrical energy in micro-hydro power plants sourced from waterways that have speed and height. The energy that can be obtained from a waterwheel should depend on the variation of the blades and the placement of the wheel but, the losses caused by wasted water are large. Therefore, this study makes an overshot waterwheel by using blade variations at the top to reduce losses and see the effect of these variations. This study uses 1 wheel with 4 variables: waterwheel without lid (T), waterwheel top blade closed 1/3 (T 1/3), waterwheel top blade closed 1/2 (1/2), and waterwheel top blade closed 2/3 (T2/3). This wheel uses mahogany wood and the blade cap uses acrylic with a thickness of 3mm. The waterwheel was tested using pipes with sizes and flow rates of 1 m3/hour, 2 m3/hour, 3 m3/hour, 4 m3/hour, 5 m3/hour, 6 m3/hour. The efficiency of the capless waterwheel is greater than the closed-blade waterwheel variation. In this study, the 1/3 closed blade waterwheel (T 1/3) is more efficient because the impact losses of the wheel (T 1/3) are lower at 720.13 when compared to the wheel without a lid (T) 1251.90 and the efficiency of the 1/3 closed blade waterwheel (T 1/3) is much higher at 64.38% when compared to the 2/3 closed blade waterwheel (T2/3) at 33.53%. Therefore, the results of this study show that the 1/3 (T 1/3) wheel is more recommended because it has a high enough efficiency and low impact losses.]]>
<![CDATA[Kinerja Solar Cell Yang Ditempatkan Pada Atap Dan Dinding Model Bangunan Terintegrasi Sistem Fotovoltaik ]]>
<![CDATA[Rifky, Rifky]]>;
<![CDATA[Mugisidi, Dan]]>;
<![CDATA[Fikri, Agus]]>
<![CDATA[ Prosiding Sains Nasional dan Teknologi Vol 11, No 1 (2021): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 11 2021 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Wahid Hasyim ]]>
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DOI: 10.36499/psnst.v1i1.5166
<![CDATA[Energi matahari dapat dimanfaatkan dalam bentuk energi termal dan energi cahaya. Energi cahaya matahari dengan media solar cell dapat dikonversi langsung menjadi energi listrik. Solar cell dapat diaplikasikan pada bangunan dan peralatan transportasi. Solar cell ditempatkan pada bangunan di bagian atap, dinding, atau naungan. Tujuan penelitian ini untuk mendapatkan kinerja solar cell yang semaksimal mungkin dengan ditempatkannya pada atap dan dinding model bangunan terintegrasi sistem fotovoltaik. Sistem dibuat dalam bentuk model bangunan dimana ditempatkan solar cell pada atap dan dindingnya. Solar cell dihadapkan ke arah timur, utara, dan barat sepanjang hari dari pagi hingga sore. Radiasi cahaya matahari yang dikonversi solar cell tidak terlepas dari pengaruh kondisi lingkungan, maka temperatur, kelembaban udara, dan kecepatan angin tidak diabaikan dalam pendataan. Tegangan listrik dan arus listrik adalah luaran yang terukur dengan alat ukur listrik. Hasil penelitian mendapatkan daya luaran rata-rata terbesar diperoleh solar cell di atap arah utara yaitu 25,49 W. Efisiensi rata-rata terbesar solar cell di atap menghadap ke barat yaitu 13,91%. Sementara solar cell di dinding menghasilkan daya luaran rata-rata terbesar yaitu 11,84 W dan efisiensi rata-rata terbesar, yaitu 7,06 % pada arah barat.]]>
<![CDATA[PEMANFAATAN PANAS MATAHARI PADA DINDING LUAR BANGUNAN SEBAGAI SUMBER ENERGI LISTRIK MENGGUNAKAN GENERATOR TERMOELEKTRIK ]]>
<![CDATA[Kuncoro, Wahyu]]>;
<![CDATA[Rifky, Rifky]]>;
<![CDATA[Mugisidi2, Dan]]>;
<![CDATA[Muharom4, Vazri]]>
<![CDATA[ Prosiding Sains Nasional dan Teknologi Vol 11, No 1 (2021): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 11 2021 ]]>
Publisher : <![CDATA[Fakultas Teknik Universitas Wahid Hasyim ]]>
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DOI: 10.36499/psnst.v1i1.4989
<![CDATA[This research utilizes solar thermal energy that absorbed by the outer wall of the building which facing north. The heat energy is converted into electrical energy using a thermoelectric generator type TEC 12706. To maintain the cold side area of TEC 12706 heatsinks are circulated with circulating water cooling fluid with a discharge of 1.8 lpm and the temperature is not more than 3oC. The study was conducted with a simulation tool composed of several materials such as glass, aluminum, styrofoam and heatsink. The test is conducted from 06.00 WIB until 18.00 WIB for 3 days. The parameters measured are light intensity, wind speed, water flow, temperature, electric voltage and electric current contained in the test equipment. The research results get a maximum output power of 0.0024 W, thermoelectric efficiency and system efficiency.]]>
<![CDATA[Laju Penguapan Pada Forced Flow Solar Still ]]>
<![CDATA[Alamsyach, Rizky]]>;
<![CDATA[Mugisidi, Dan]]>;
<![CDATA[Oktavian, Akbar]]>;
<![CDATA[Heriyani, Oktarina]]>
<![CDATA[ Jurnal Mesin Nusantara Vol 7 No 2 (2024): Jurnal Mesin Nusantara ]]>
Publisher : <![CDATA[Universitas Nusantara PGRI Kediri ]]>
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DOI: 10.29407/jmn.v7i2.22887
<![CDATA[Air bersih semakin langka di seluruh dunia akibat polusi, perubahan iklim, dan pertumbuhan penduduk. Salah satu solusi adalah desalinasi air laut dengan metode solar still yang ramah lingkungan. Penelitian ini fokus pada forced flow solar still yang memanfaatkan aliran udara untuk meningkatkan laju penguapan dan produktivitas air tawar. Temperatur air mempengaruhi kinerja solar still; semakin tinggi temperatur air dan kecepatan aliran udara di dalam solar still, maka penguapannya juga akan meningkat. Penelitian ini bertujuan menentukan laju penguapan air laut dalam forced flow solar still. Perangkat desalinasi ini menggunakan kondensor dan pengukuran parameter seperti temperatur dan kecepatan aliran udara, dengan data penguapan dikumpulkan setiap 15 menit selama 2 hari. Hasil penelitian menunjukkan bahwa forced flow solar still efektif meningkatkan laju penguapan. Temuan ini dapat membantu meningkatkan efisiensi desalinasi menggunakan solar still dengan mempertimbangkan faktor iklim lokal. ]]>
<![CDATA[Perancangan Bilah Inverse Taper Pada Turbin Angin Sumbu Horizontal Skala Kecil ]]>
<![CDATA[Tegar Imaniar Kusnanto]]>;
<![CDATA[Oktarina Heriyani]]>;
<![CDATA[Dan Mugisidi]]>;
<![CDATA[Yos Nofendri]]>
<![CDATA[ METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 2 No. 1 (2023): Metalik: Jurnal Manufaktur, Energi, Material Teknik ]]>
Publisher : <![CDATA[Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin ]]>
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DOI: 10.22236/metalik.v2i1.12386
<![CDATA[Renewable energy is renewable and non-polluting energy. One of the new renewable energies is wind, Indonesia itself has an average wind speed of around 3-6 m/s. Wind turbines are tools used to convert wind energy into electrical energy, small-scale wind turbines are wind turbines that have a maximum output power of no more than 500 watts. There are several components in a wind turbine such as generators, fins, controllers, data loggers, batteries and blades. One of the important components in a wind turbine is the blade because the blade is the component that is directly facing the wind. If what is designed is an inverse taper type blade which has a widening shape towards the end by applying the cross sectional shape of the NACA 6412 airfoil. The performance test of the blade is carried out for 3 days with the highest wind speed data acquisition of 8.12 m/s at 13:00 noon and electric power the highest obtained was 136.53 watts at 13:00 noon]]>
<![CDATA[Pengaruh Variasi Jumlah Bilah Turbin Angin Sumbu Horizontal Dengan Airfoil AG 12 Terhadap Daya ]]>
<![CDATA[Deka Rama Ligustian]]>;
<![CDATA[Oktarina Heriyani]]>;
<![CDATA[Dan Mugisidi]]>
<![CDATA[ METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 2 No. 1 (2023): Metalik: Jurnal Manufaktur, Energi, Material Teknik ]]>
Publisher : <![CDATA[Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin ]]>
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DOI: 10.22236/metalik.v2i1.12387
<![CDATA[Wind power plant is a new renewable energy, power plant that utilizes wind turbine rotation to convert wind energy into electrical energy. One of the modifications to the wind turbine that is done is to vary the number of blades. The results of variations in the number of blades are expected to increase the efficiency of wind turbines at certain speeds. In this research, we will vary the number of blades 3, 4 and 5 with an AG 12 airfoil assisted by the Q-Blade application for simulation and find out the results of calculations in graphical form. Variations are made at a minimum wind speed of 2 m/s to a maximum wind speed of 12 m/s. With a planned power coating of 500 watts assuming a turbine rotation of 400 rpm, using a horizontal axis wind turbine (TASH). With a minimum wind speed of 2 m/s, the variations in the number of blades 3, 4 and 5 have not been able to generate power because the turbine rotation factor is too fast at low wind speeds, while at a maximum wind speed of 12 m/s the power generated by the three blade variations 3, 4, and 5 are able to meet the planned power capacity of 500 watts. The highest efficiency is obtained in the variation of blade 4 with 0.453 at wind speed 8 with a power of 300.37 watts, then 0.37 in the variation of 3 blades at a speed of 7 m/s with a power of 164.28 watts, in the variation of blade 5 the highest efficiency is in the figure is 0.29 at a wind speed of 10 m/s with a power of 409.14 watts.]]>
<![CDATA[EFFECT OF CYLINDER SURFACE ROUGHNESS TO THE DISTANCE FORMATION OF VORTEX ]]>
<![CDATA[Heriyani, Oktarina]]>;
<![CDATA[Mugisidi, Dan]]>;
<![CDATA[Hilmi, Irfan]]>
<![CDATA[ SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 14 No. 2 (2020): SINTEK JURNAL ]]>
Publisher : <![CDATA[Universitas Muhammadiyah Jakarta ]]>
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DOI: 10.24853/sintek.14.2.94-98
<![CDATA[Reduction of cylinder surface resistance can be accomplished by modifying roughness. The surface roughness structure is one of the important parameters which greatly affects the flow of fluid through the cylinder surface. Fluid flow forms a vortex flow pattern with certain characteristics. Therefore, this study aims to analyze the characteristics and effects of fluid flow through the rough surface of the outer wall of the pipe with visualization using Particle Image Velocity (PIV). This research was conducted experimentally at the Faculty of Engineering, UHAMKA. The pipe surface roughness values varied were 0.648 µm and 1.699 µm. The length of the pipe used is 20 cm with a diameter of 2 inches. Measurements are made from the center of the pipe to a distance of 0.16 m. The results show that the surface roughness of the cylinder pipe affects the fluid flow characteristics where the formation of eddies is caused by the addition of the roughness value. The rougher the pipe surface is, the farther the vortex formation will be. The vortex formation closest to the pipe is a pipe with a roughness value of 0.648 µm at a distance of 0.04 m.]]>
<![CDATA[Training on Solar Cell Utilization for Edutourism Enhancement ]]>
<![CDATA[Rifky]]>;
<![CDATA[Heriyani, Oktarina]]>;
<![CDATA[Mugisidi, Dan]]>;
<![CDATA[Ariyansah, Riyan]]>;
<![CDATA[Fauzi, Herman]]>
<![CDATA[ Jurnal Pengabdian Masyarakat Vol. 6 No. 1 (2025): Jurnal Pengabdian Masyarakat ]]>
Publisher : <![CDATA[Institut Teknologi dan Bisnis Asia Malang ]]>
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DOI: 10.32815/jpm.v6i1.1784
<![CDATA[Purpose: This study article seeks to examine the efficacy of a training program centered on solar cell application to improve edutourism in Pulau Pari. The study seeks to tackle the issue of insufficient knowledge and skills in renewable energy within the local community and emphasize the importance of integrating sustainable practices in the tourism industry. Method: This investigation implements a mixed-methods approach. Quantitative data was gathered using pre- and post-training evaluations to assess the enhancement of participants' knowledge and skills. Qualitative data was acquired via interviews and observations to elucidate the individuals' experiences and perceptions. The data underwent analysis by descriptive statistics and thematic analysis. Practical Applications: The results of this study have practical implications for the tourism industry as a whole and for the local community of Pulau Pari. The outputs of the training program can guide the creation of analogous programs in other locations, fostering the implementation of renewable energy and sustainable practices in edutourism. The findings may also assist policymakers and tourist stakeholders in incorporating solar cell implementation into their strategy for sustainable tourism development. Conclusion: The study's results demonstrate that the training program on solar cell application for enhancing edutourism in Pari Island has successfully improved participants' knowledge and abilities in renewable energy. The program can enhance the island's sustainable development by diminishing reliance on traditional energy sources and fostering eco-friendly tourism habits. The findings highlight the importance of integrating renewable energy education and training into community-based tourism programs to promote sustainability and resilience against global environmental concerns.]]>
