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<![CDATA[Tinjauan Pustaka: Kinerja Kondensor terhadap Produksi Air Tawar pada Proses Desalinasi Air Laut ]]>
<![CDATA[Ahmad Faiz Rahmatullah]]>;
<![CDATA[Dan Mugisidi]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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<![CDATA[The utilization of waste heat from air conditioning (AC) systems has the potential to serve as an alternative energy source for seawater desalination processes. However, the thermal efficiency of desalination systems is strongly influenced by the condensation stage, particularly by the shape and design of the condenser used. This review aims to examine and compare various condenser configurations such as shell and tube, coiled tube, plate, and finned condensers in the context of improving condensation efficiency and freshwater production. The study is conducted through a literature analysis that reviews key parameters such as heat transfer rate, coolant flow rate, and temperature differences between fluids. The review results show that shell and tube condensers provide the highest heat transfer effectiveness, while plate condensers offer better energy efficiency and ease of maintenance. In conclusion, selecting the appropriate condenser design can significantly enhance the efficiency of seawater desalination systems utilizing AC waste heat.]]>
<![CDATA[Rancang Bangun Robot Pelontar dan Penghadang Bola Sebagai Mesin Latih Permainan Bola Basket Berbasis Kendali Wireless ]]>
<![CDATA[Akhmad Rizal Dzikrillah]]>;
<![CDATA[Dewa]]>;
<![CDATA[Ahmad Faiz Rahmatullah]]>;
<![CDATA[M. Ikhwan Tantowi]]>;
<![CDATA[Fadhillah Al Ghifari]]>;
<![CDATA[Muhammad Fadilah Rafli]]>;
<![CDATA[Muhammad Fawwaz Majid Alamy]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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<![CDATA[Basketball players need to train their ability to pass and catch the ball from teammates amid the defense of opposing players. With the use of robotic technology, which is now commonly applied in sports training and considered more stable and controllable than humans, athletes can further improve their performance. This study aims to design and develop a ball launching machine that can be used for passing the ball and has an additional capability to block incoming shots. The system uses a net as a blocker that can be raised and lowered to intercept the launched ball. High-torque and high-speed motors on the launching wheels allow the ball to be thrown up to a distance of 4.5 meters. By using a combination of four omniwheels, the machine is capable of moving with three degrees of freedom: forward–backward, turning right–left, and sliding right–left.]]>
<![CDATA[Review: Pemanfaatan Vakum pada Solar Still dalam Proses Laju Penguapan Air Laut untuk Pengaplikasian Desalinasi Kolam Garam ]]>
<![CDATA[Irfan Maulana Yusuf]]>;
<![CDATA[Dan Mugisidi]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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<![CDATA[Vacuum is a condition of air pressure lower than atmospheric pressure and has a significant influence on the process of changing the liquid phase to vapor. Vacuum pressure has a direct influence on increasing the rate of seawater evaporation by lowering the boiling point so that the evaporation process can occur at a low temperature. This study aims to analyze the effect of vacuum pressure on the rate of seawater evaporation for application in a salt pond desalination system. The method used is a literature review from various journals discussing the application of vacuum in the seawater desalination process. The results of the study indicate that reducing pressure significantly accelerates the rate of evaporation and reduces the need for heat energy. The application of vacuum pressure is considered effective in improving performance and efficiency compared to atmospheric pressure systems. This study can provide the development of an energy-efficient desalination system that can be potentially applied in coastal areas.]]>
<![CDATA[Analisis Pengaruh Intensitas dan Ukuran Tetesan Hujan terhadap Kinerja Piezoelektrik pada Pemanfaatan Curah Hujan menjadi Energi Listrik ]]>
<![CDATA[M. Ravi Cahya Firdaus]]>;
<![CDATA[Rifky]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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<![CDATA[The increasing demand for energy encourages the development of renewable energy sources, but the utilization of rain energy in Indonesia is still limited. This literature study examines the effect of rainfall intensity and water droplet size on the electrical output of polycarbonate piezoelectrics. The intensity variation is set at less than 5 mm/hour (light rain), 5-20 mm/hour (moderate rain) and 20-50 mm/hour (heavy rain), with droplet sizes of 2.5 mm, 5 mm, and 7.5 mm. The experimental method in this study was carried out by comparing the differences in rainfall intensity and the size of raindrops that fell on the roof that had been installed with a piezoelectric. The raw data measured were voltage and electric current. The results of data processing are in the form of piezoelectric performance, namely electrical power and efficiency. A review of the variations in rainfall intensity and raindrop size shows a relationship between the kinetic energy of the droplets and the piezoelectric output voltage.]]>
<![CDATA[Rancang Bangun Sistem Penebar Pakan Ikan berbasis Internet of Things (IoT) ]]>
<![CDATA[Ridwan Bagus Andreyanto]]>;
<![CDATA[Gusnul Mahesa]]>;
<![CDATA[Muhammad Rizal]]>;
<![CDATA[Lutfi Triyuli Evana Rizki]]>;
<![CDATA[Firman Noor Hasan]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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<![CDATA[In everyday life, both in urban and rural areas, many people enjoy keeping fish as pets because they are easy to care for and maintain. This has led to a growing interest in fishkeeping among the general public. Fish kept in aquariums require regular feeding schedules to maintain their health, making an organized and consistent feeding system essential. The ESP32 is an integrated chip developed for modern networking applications. It provides a complete and integrated Wi-Fi networking solution that can function as an application processor or serve as a Wi-Fi network controller for other processors. One of its practical applications is in the development of an automatic fish feeder based on the Internet of Things (IoT). By utilizing the ESP32 along with supporting software such as Arduino IDE, Google Firebase, and MIT App Inventor, the automatic fish feeder can operate automatically according to predefined feeding schedules. Furthermore, the system can send notifications through a website when the fish have been fed or when the feed container is empty.]]>
<![CDATA[Desain Rancang Bangun Ketel Uap Alat Destilasi Minyak Atsiri ]]>
<![CDATA[Laode Putu Mahardhika]]>;
<![CDATA[Hendi Saryanto]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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<![CDATA[Indonesia has great potential in the development of essential oils due to its abundant natural resources. However, most essential oil distillation processes in Indonesia still rely on conventional steam boilers fueled by wood or biomass, which have low thermal efficiency and produce high emissions. This research focuses on the design development and fabrication of an induction-based steam boiler as an environmentally friendly alternative for essential oil distillation. The study involves conceptual design, material selection, and fabrication processes based on the ASME Boiler and Pressure Vessel Code (BPVC) Section IV and B31.4 standards. This research focuses on the design and manufacturing stages of the tool, while thermal performance analysis will be carried out in further research., and the functional verification stage is planned to be carried out after the boiler fabrication is completed. Through this approach, the developed prototype is expected to be efficient, safe, and practical for essential oil distillation. The outcome of this design is also expected to serve as a reference for future development of induction heating technology in small- and medium-scale essential oil industries in Indonesia.]]>
<![CDATA[Analisis Kandungan Free Fatty Acid (FFA) dan Viskositas Limbah Minyak Jelantah pada UMKM di Kota Malang sebagai Upaya Pengendalian Mutu Bahan Baku Biodiesel ]]>
<![CDATA[Ahmad Setyo Putra]]>;
<![CDATA[Areta Triani Putri]]>;
<![CDATA[Aswangga Bhagas Ramadhan]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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DOI: 10.22236/teknoka.v10i1.22632
<![CDATA[This research aims to analyze the Free Fatty Acid (FFA) content and viscosity of waste cooking oil (WCO) generated by small and medium enterprises (SMEs) in Malang City as part of quality control for biodiesel feedstock. Sixty oil samples were tested using the alkalimetric titration method for FFA and a Brookfield viscometer for viscosity measurement. The results showed an average FFA value of 1.38% (ranging from 0.07% to 7.46%) and an average viscosity of 31.28 cP (ranging from 22.75 to 42.13 cP). Most samples met the safe limit (<2%) for direct base-catalyzed transesterification, while approximately 25% required a pre-esterification process. The Pearson correlation indicated a weak but significant negative relationship (r = -0.2898; p < 0.05), suggesting that FFA and viscosity must be controlled independently. These findings highlight the importance of implementing a simple quality control system at the SME level to support sustainable biodiesel production.]]>
<![CDATA[Review Pengaruh Penambahan Nanopartikel Pada Pelumas Terhadap Oli Mesin ]]>
<![CDATA[Dimas Maha Saputra]]>;
<![CDATA[Dan Mugisidi]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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DOI: 10.22236/teknoka.v10i1.22645
<![CDATA[Improving engine efficiency and stability is a key component of engine technology, especially in the crucial aspect of lubrication to reduce friction and component wear. Conventional lubricants often have difficulty in maintaining thermal stability and tribological properties under high operating conditions. Therefore, the use of nanoparticles in lubricants is being developed as an innovation to improve engine performance. This review aims to analyze the effect of various types and concentrations of nanoparticles on the physical characteristics and performance of lubricants, such as viscosity, thermal conductivity, and the ability to reduce friction. The method used is an experiment in which metal oxide nanoparticles are mixed into the base oil using an ultrasonic method, followed by using a viscometer and tribometer. The findings of this review show that the addition of nanoparticles can significantly improve thermal stability and reduce the coefficient of variation of friction compared to oil without nanoparticle additives. This indicates that nanoparticle-based lubricants have the potential to improve engine and component efficiency.]]>
<![CDATA[Tinjauan Pustaka: Pengaruh Temperatur Udara keluar Terhadap Proses Penguapan ]]>
<![CDATA[Salman Alfariz]]>;
<![CDATA[Dan Mugisidi]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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DOI: 10.22236/teknoka.v10i1.22656
<![CDATA[The evaporation process is strongly influenced by air temperature, particularly the outlet air temperature, which determines the rate of moisture removal and energy efficiency. This literature review analyzes studies on the impact of outlet air temperature on evaporation performance across various applications, including drying systems, cooling towers, and desalination units. Findings from previous research indicate that higher outlet air temperatures generally increase the evaporation rate due to enhanced vapor pressure differences, yet may reduce overall energy efficiency if not properly controlled. Conversely, optimized airflow and moderate temperature gradients promote stable evaporation with lower energy losses. The reviewed literature highlights the importance of balancing thermal and aerodynamic parameters to achieve effective and sustainable evaporation processes. This review aims to provide a theoretical foundation for improving evaporative system design through precise control of outlet air temperature.]]>
<![CDATA[Analisis Pengaruh Intensitas Cahaya Matahari dan Jenis Generator terhadap Kinerja Sistem Panel Surya-Generator Hidrogen 50 Wp ]]>
<![CDATA[Saddam Firly Mustarisiam]]>;
<![CDATA[Rifky]]>;
<![CDATA[Tasyrik Al Qaida]]>;
<![CDATA[Dicky Wyldan Putra Permana]]>;
<![CDATA[Rezha Apriansyah]]>
<![CDATA[ Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10 ]]>
Publisher : <![CDATA[Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta ]]>
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DOI: 10.22236/teknoka.v10i1.22714
<![CDATA[Hydrogen gas can be produced from wet hydrogen generators (GHB) and dry hydrogen generators (GHK). Both hydrogen generators are powered by a 50 Wp solar panel (PV). The aim of this research is to study the performance comparison of GHB and GHK in producing hydrogen gas flow rate and system efficiency to determine the more optimal system. The research began with a literature study and designing both generators, which underwent trials to obtain a research equipment system that adheres to the theory and concepts of GHB and GHK. Experimental methods were carried out by direct measurements of input and output variables from the solar panel as well as output variables from the GHB and GHK electrolysis systems. The research results show that the integrated PV-GHB system produces a larger hydrogen gas flow rate and higher system performance efficiency compared to PV-GHK.]]>
