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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Teknosains SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Prosiding Semnastek International Conference on Coastal and Delta Areas R.E.M (Rekyasa Energi Manufaktur) Jurnal Rekayasa Teknologi Jurnal SOLMA Prosiding Seminar Nasional Teknoka Dinamisia: Jurnal Pengabdian Kepada Masyarakat SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Bantenese Jurnal Pengabdian Masyarakat Jurnal Teknologi Bahan dan Barang Teknik Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Jurnal Pengabdian kepada Masyarakat Nusantara Jurnal Pengabdian Masyarakat Asia JTTM: Jurnal Terapan Teknik Mesin Jurnal Mesin Nusantara BEMAS: Jurnal Bermasyarakat Sawala : Jurnal pengabdian Masyarakat Pembangunan Sosial, Desa dan Masyarakat Mechanical Engineering for Society and Industry Urecol Journal. Part E: Engineering Jurnal Polimesin Metalik: Jurnal Manufaktur, Energi, Material Teknik TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Dan Mugisidi
Mechanical Engineering, Faculty Of Industrial And Informatic Technology, Universitas Muhammadiyah Prof. Dr. HAMKA, Indonesia
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Convective Coefficient and Evaporative in Forced Flow Solar Still Akbar Oktavian; Dan Mugisidi; Rizky Alamsyach; Oktarina Heriyani
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 2 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i2.6937

Abstract

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.
Improving the thermal efficiency of fin-tube heat exchangers by optimizing geometric parameters of curved rectangular winglet vortex generators Dan Mugisidi; Oktarina Heriyani; Amir Khalid; Ahmed Rahmani
Mechanical Engineering for Society and Industry Vol. 6 No. 1 (2026)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/mesi.15393

Abstract

Thermal efficiency is a fundamental criterion in the design and operation of heat exchangers because it provides a clear view of the thermal behaviour and reliability of the system. Integrating vortex generators (VGs) with heat exchangers often increases turbulence and enhances the heat transfer rate but at the cost of increased pressure drops. This study aims to maximise the thermal enhancement factor (TEF) in fin–tube heat exchangers by optimising the radial distance, hole width and angular position of curved rectangular winglet vortex generators (CRW-VGs). Computational fluid dynamics analysis is utilised to investigate how variations in radial distance and hole width influence CRW-VG performance. Parameters such as TEF, Nusselt number ratio, friction factor ratio and flow regime were examined. The results show that smaller radial distances suppress mixing vortices and enhance TEF, while larger hole widths generate strong jet flows and increase heat transfer rates. The highest TEF of 1.075 is achieved at an angular position of 120°, a hole width of 0.5 H and a radial distance of 1.25. The study reveals that optimising the geometric parameters of VGs is proven satisfactory for enhancing heat transfer performance and minimising pressure drop.
Rice husk ash as a substitute for silica gel Rahmad Bonanza; Dan Mugisidi
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 11 No 1 (2024): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v11i1.943

Abstract

Silica gel has been widely used as a dryer for food, medicine and various other purposes. Silica gel is basically a safe material, but because of its hydroscopic nature, silica gel is easily contaminated with dangerous materials. Apart from that, silica gel cannot decompose easily naturally, so using large amounts of silica gel will cause piles of silica gel waste. Therefore, efforts are being made to find replacement materials, one of which is using rice husk ash which can easily decompose naturally. This research aims to test the ability of rice husk ash as a substitute for silica gel. Tests used commercial silica gel (SG), silicon gel in non-woven geotextile bags (SG-N), and rice husk ash in non-woven geotextile bags (AS-N). In this study, AS-N was compared with SG and SG-N. The water vapor absorption test was carried out on a weight of 15 grams for 180 minutes. Each of the three samples was placed in a closed jar to avoid contamination with water vapor in the environment. The relative humidity of each jar was measured with a hygrometer. The jar lid was kept closed throughout the test. The results showed that SG, SG-N and AS-N reduced humidity by 23%, 22% and 24% respectively. Modeling with the Avrami equation is used to extrapolate the absorption results. The research results showed that 15 gram non-woven geotextile rice husk ash had superior water vapor absorption capabilities compared to silica gel and silica gel non-woven geotextiles. So it can be concluded that dryers with rice husk ash as the basic material can be used for needs such as clothes dryers, food dryers and other needs
Design of automatic control-based pneumatic system for material thickness measurement Alfian Ady Saputra; Dan Mugisidi; Riyan Ariyansah
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 11 No 1 (2024): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v11i1.962

Abstract

TThe manual measurement of materials using pneumatic systems for inspections remains prevalent, posing challenges in meeting the demands and speed of modern production processes. To address this, there is a critical need for an automated inspection tool capable of generating a significant number of inspection inputs. This research objectives to design and implement an automatic thickness inspection system, employing pneumatic technology and inductive proximity sensors. The study adopts an experimental research design, systematically progressing through literature review, algorithm design, PLC programming, and comprehensive testing. The pneumatic system, known for its high response speed and durability, is capable of accurately measuring material thickness and sorting items with precision. The integration of inductive proximity sensors enhances the system's efficiency in detecting both metallic and non-metallic objects. The research findings reveal a system effectiveness of 95.8% in the initial test and 91.7% in the subsequent test. Notably, deviations in the Ø12 sensor are identified in detecting NG minus material. Despite this, the system's overall effectiveness surpasses the 90% threshold, meeting stringent standard criteria. The study concludes with insights into the identified deviations and underscores the system's effectiveness in meeting high-standard criteria. Recommendations for improvement include modifications to the stopper or proximity sensor position, sensor recalibration, continuous monitoring, and material path separation
Effect of buoyancy force on buoyancy waterwheel efficiency using numerical flow simulation Fadlurrahman Zaki; Dan Mugisidi
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 11 No 2 (2024): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v11i2.976

Abstract

In this work, the performance of a buoyant waterwheel to produce hydrokinetic power is investigated through analytical theory and computational fluid dynamics simulation. The impact of the buoyancy wheel is investigated by establishing the performance parameters through the use of a moving mesh approach and a realizable k-ε turbulence model. Transient simulation is required to comprehend the flow of physical processes. Using moving mesh as a transient methodology of the buoyancy waterwheel, numerical flow simulations and theoretical analytical methods are used in this study to assess the effect of buoyant force generated on the performance of the buoyancy wheel. The buoyancy waterwheel that will be put to the test has eight straight blades and a diameter of one meter.  The pinwheel force and torque created in the numerical flow simulation (CFD) are 414.96 N and 207.48 Nm, respectively, whereas in the theoretical calculation they are 449.06 N and 224.53 Nm, according to the research findings. It is possible to compute the buoyancy wheel's power output and efficiency mathematically, yielding values of 1619.35 W and 68.07%. The buoyancy wheel's power output and efficiency, as determined by numerical flow simulation, are 1495.95 W and 62.88%, respectively. Based on theoretical and CFD study results, the buoyancy wheel generates a standard deviation of 7.62%. Thus, for the buoyancy wheel, a temporary method that makes advantage of the moving mesh characteristic is advised. This method can also be applied as a future alternative energy source for the Piko hydro turbine
Analisa Dampak Emisi Gas Buang Pada Kualitas Udara Adi Nugroho; Johan Wirayudatama; Dan Mugisidi; Agus Fikri
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 4 No. 2 (2025): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v4i2.20766

Abstract

AbstrakPencemaran udara yang diakibatkan oleh emisi gas buang kendaraan bermotor menjadi salah satu persoalan lingkunganyang berdampak serius terhadap kesehatan manusia. Penelitian ini bertujuan untuk mengidentifikasi pengaruh emisikendaraan terhadap kualitas udara dan kesehatan masyarakat serta menelaah upaya penanggulangannya. Metode penelitiandilakukan dengan studi literatur dan analisis data uji emisi kendaraan bermotor dari sumber resmi. Hasil menunjukkanbahwa gas buang kendaraan seperti karbon monoksida (CO), hidrokarbon (HC), dan nitrogen oksida (NOx) memilikikontribusi signifikan terhadap penurunan kualitas udara yang memengaruhi tanah, air, dan kesehatan pernapasanmasyarakat di perkotaan dan pedesaan. Polusi udara yang tinggi dapat menyebabkan gangguan pernapasan kronis, asma,penurunan daya tahan tubuh, hingga penyakit paru-paru. Upaya penanggulangan dapat dilakukan dengan perawatan rutinkendaraan, penerapan uji emisi berkala, penggunaan kendaraan ramah lingkungan, serta penyediaan jalur hijau sebagaipenyerap polutan. Kesimpulannya, emisi kendaraan memiliki dampak nyata terhadap lingkungan dan kesehatan sehinggadibutuhkan sinergi untuk mengendalikan polusi udara demi kualitas hidup yang lebih baik.Kata kunci: Emisi kendaraan; Kesehatan; Kualitas udara; Polusi; Uji emisiAbstractAir pollution caused by motor vehicle emissions has become one of the environmental problems that seriously affect human health.This study aims to identify the impact of vehicle emissions on air quality and public health and to review possible mitigatio n efforts.The research method was carried out through literature studies and analysis of vehicle emission test data from official sourc es.The results showed that vehicle exhaust gases such as carbon monoxide (CO), hydrocarbons (HC), and nitrogen oxides (NOx)contribute significantly to the decline in air quality, affecting soil, water, and respiratory health in urban and rural area s. Highair pollution levels can lead to chronic respiratory disorders, asthma, decreased immunity, and lung diseases. Mitigatio n effortscan be made through regular vehicle maintenance, periodic emission tests, the use of environmentally friendly vehicles, and theprovision of green lanes as pollutant absorbers. In conclusion, vehicle emissions have a real impact on the environmen t and health,so synergy is needed to control air pollution for better quality of life.Keywords: Air pollution; Emission test; Health; Vehicle emissions
Effect of Low Partial Vacuum on Evaporation and Condensation Performance in a Solar Still System Irfan Maulana Yusuf; Dan Mugisidi; Oktarina Heriyani; Sofia Pinardi; Nunik Pratiwi
Jurnal ASIIMETRIK Jurnal Ilmiah Rekayasa & Inovasi Volume 8 Number 2 (2026)
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v8i2.10039

Abstract

This study investigates the effect of low partial vacuum on the evaporation and condensation performance in a solar still system. The tests were conducted using three variations: non-vacuum (101325 Pa), vacuum 1 (101313 Pa), and vacuum 2 (101309 Pa) using an exhaust system. The observed parameters included water temperature, pressure, vapor pressure difference (ΔP), evaporation mass, and condensation yield. The results showed that low partial vacuum increased the vapor pressure difference, thereby enhancing the driving force for evaporation. The highest maximum ΔP value was obtained at vacuum 2, at 1278.48 Pa. However, water temperature had a more dominant influence on total evaporation, so the highest cumulative evaporation mass was obtained under non-vacuum conditions at 8750 g due to better thermal energy retention. Meanwhile, vacuum 1 produced the highest condensation yield of 7641 g, indicating a balance between vapor formation and vapor distribution within the system. These findings suggest that the optimization of a solar still based on low partial vacuum is determined not only by an increase in vapor pressure difference but also by the system’s ability to retain thermal energy and the effectiveness of the condensation process .
Co-Authors Abdul Rahman Abdul Rahman Soleh Pohan Adi Nugroho Adi Tri Siswanto Adittia Fajar Afandi, Rizki Afif Agil Hidayatulloh Agus Fikri Agus Fikri Agus Fikri Ahmad Ahdani Ahmad Faiz Rahmatullah Ahmad Muflih Adzhar Ahmad Samil Mubarok Ahmed Rahmani Aji, Ikbal Prasetiyo Akbar Oktavian Alamsyach, Rizky Amanda Setiawan Amir Khalid Arief Hamzah Avorizano, Arry Cahyani, Regita Septia Che Wan Mohd Noor Deka Rama Ligustian Dimas Maha Saputra Djeli, M Yusuf Emilia Roza Estu Sinduningrum Fadhlurrahman Zaki Fadhlurrahman Zaki Fadlurrahman Zaki Fadlurrahman Zaki Faldy Irwiensyah Faturahman, Hamdi Fauzi, Herman Fikri, Agus Fikri, Agus Firman Noor Hasan Firmansyah Azharul Gaza Juliyanto Genta Prastanadira Giri Parwatmoko Hamdi Faturahman Hamdi Faturohman Hamzah, Arif Hanad Arizal Hangga Putra Prabawa Hilda, Atiqah M. Hilmi, Irfan Ibnu Sulistiono Ikbal Prasetiyo Aji Irfan Maulana Yusuf Irfan Maulana Yusuf Johan Wirayudatama Luhung, Rizal Andi Lutfan Zulwaqar M Yusuf Djeli M. Mujirudin Mohammad Mujirudin Mohammad Yusuf D Mubarok, Ahmad Samil muhammad irfan Muharom4, Vazri Muhidal Wasi Mujirudin Mujirudin Naufal Eka Prasetya Nofendri, Yos Nunik Pratiwi Nurfadillah, Zaka Nurkholid Nurkholid, Nurkholid Oktarina Heriani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktavian, Akbar Pancatatva Hesti Gunawan Parwatmoko, Giri Qolibu Rozak Rahmad Bonanza Rahmatullah, Ahmad Faiz Rahmi Imanda Ramzah, Harry Regita Septia Cahyani Rifky, Rifky Riyan Ariyansah Rizal Andi Luhung Rizki Afif Afandi Rizky Alamsyach Salman Alfarisi Salman Alfariz Saputra, Alfian Ady Sayuti, Adi Tegar Sigit Maulana Malik Sinduningrum, Estu Sofia Pinardi Soleh Pohan, Abdul Rahman Sugema Sulistiono, Ibnu Tegar Imaniar Kusnanto Wahyu Kuncoro Wasi, Muhidal Widodo Widodo Wilarso, Wilarso Wirangga, Ristanto Yulikastomo Yulikastomo yusuf, Ahmad Maulana Zaka Nurfadilah Zulfikri