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INDONESIA
Prosiding Seminar Nasional Teknoka
Published by Universitas Muhammadiyah Prof. Dr. Hamka
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Engineering
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Articles 400 Documents
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Pengaruh Kapasitas Panel Surya dan Intensitas Cahaya Matahari terhadap Kinerja Generator Hidrogen Kering dalam Produksi Gas Hidrogen Rezha Apriansyah; Rifky; Tasyrik Al Qaida; Dicky Wyldan Putra Permana; Saddam Firly Mustarisiam
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Hydrogen gas can be obtained from a hydrogen generator generated by solar panels. This study aims to obtain the performance of an integrated solar panel system with a dry hydrogen generator (GHK) in producing hydrogen gas. GHK has a design with an arrangement of HSS 316L type steel plates coated with rubber gaskets. The research methodology used is experimental, starting with the design of the GHK electrolysis system using two solar panels with a capacity of 50 Wp and 100 Wp as electrical energy suppliers. The test was carried out in an open area using sunlight. The input data measured included sunlight intensity, air humidity, air temperature, wind speed, and solar panel surface temperature. The output data measured included electrical voltage, electrical current, hydrogen gas discharge, oxygen gas discharge, electrolysis process temperature, and weather conditions. The results showed that the system with a 100 Wp solar panel produced a larger volume of hydrogen and had a higher efficiency of energy conversion than the 50 Wp panel.
Pengujian Komposit Serat Alami Rizki Romadon Siregar; Yos Nofendri
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Over the past two decades, driven by growing awareness of environmental sustainability and the availability of renewable resources, the development of natural fiber-reinforced composites has progressed significantly. This review summarizes recent studies on the mechanical behavior of composites reinforced with bamboo, coconut, and oil palm fibers. The discussion focuses on the effects of chemical treatments on tensile, flexural, and impact strength, based on 24 peer-reviewed articles indexed in Scopus and Google Scholar from 2020 to 2025. Results indicate that alkali treatment using 5–10% NaOH improves tensile strength by up to 40% and flexural strength by 25% compared to untreated composites. Moreover, hybridization of bamboo and oil palm fibers enhances impact energy absorption by approximately 30%. Overall, mechanical performance strongly depends on fiber orientation, volume fraction, and interfacial bonding. This review provides a comprehensive synthesis for developing sustainable composites for future structural and automotive applications.
Review pada Pengaruh Sudut Kemiringan Atap terhadap Keluaran Energi Piezoelektrik pada Eksperimen Konversi Energi dari Tetesan Air Hujan menjadi Energi Listrik Pandu Kusuma Pangestu; Rifky; Muhammad Fahmi Nurhidayat; Kurnia Sandi Oktaris; Reyhan Martin Firnanda; M. Rafi Cahya Firdaus
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

This review was conducted to examine the effect of variations in roof slope angles on the amount of piezoelectric energy generated from the impact of artificial rainwater. The study utilized a miniature roof model with four different slope angles: 15°, 30°, and 45°. Piezoelectric sensors were placed on the underside of the roof surface, which was made of polycarbonate material. Rain simulation was performed using a demonstration device with a constant water discharge rate and controlled droplet size. The voltage and electric current produced at each slope variation were measured using a multimeter. Each experiment was repeated three times to ensure the validity and consistency of the results. The collected data were analyzed to determine the relationship between the roof slope angle and the electrical output by presenting voltage and current graphs against the slope angle and calculating the energy conversion efficiency. The results showed that variations in the roof slope angle affected the generated piezoelectric energy, and an optimum angle was identified that produced the highest voltage and current.
Review Studi Konfigurasi Rangkaian Piezoelektrik (Seri vs Paralel) dalam Pemanenan Energi Hujan Reyhan Martin Firnanda; Rifky
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

This study aims to examine the effect of series and parallel piezoelectric circuit configurations on the system's ability to deliver greater current and better power stability. The objective of the study is to obtain greater electrical power from series and parallel circuits. This research method is carried out by comparing series and parallel circuits on a number of piezoelectrics that will produce voltage and electric current. Data processing will obtain electrical power and the efficiency of the mechanical energy conversion system into electricity, in this case the piezoelectric. The results found that the type of piezoelectric circuit affects electrical power and efficiency. This shows that the use of piezoelectrics as an energy harvesting device can be an alternative solution for producing small-scale, environmentally friendly electrical energy.
Pemanfaatan Panas Buang Pendingin Udara untuk Proses Penguapan Air pada Sistem Desalinasi Berbasis Vortex Generator Genta Prastanadira; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

The clean water crisis caused by climate change and population growth has driven the development of efficient and sustainable desalination technologies. One alternative is to utilize waste heat from air conditioning systems as a thermal energy source for water evaporation processes. Hot air from air conditioning system condensers can be reused in the desalination process, especially when combined with vortex generators to increase heat transfer through turbulent flow. This study aims to review various studies on the effect of vortex generators on increasing the evaporation process in air conditioning waste heat-based desalination systems. The method used is a literature study of scientific publications discussing flow characteristics, temperature distribution, thermal efficiency, and water evaporation rate. The results of the review show that the application of vortex generators can increase the evaporation rate compared to conventional systems. This study provides the basis for the development of energy-efficient desalination systems with broad potential for clean water supply.
Tinjauan Pustaka: Evaporator Oil Essensial Hanad Arizal; Dan Mugisidi; Oktarina Heriani
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Evaporators with vacuum and heating systems are increasingly being used in the evaporation process of essential oils for aromatherapy due to their ability to increase efficiency without damaging the quality of volatile compounds. Their working principle is to lower the partial pressure so that the oil's boiling point can be reached at a lower temperature. Under these conditions, the active compounds in essential oils can be optimally evaporated without degradation due to excessive heat. This technology is crucial given the sensitivity of essential oils to high temperatures, as the chemical components in essential oils are highly stable. This study reviews various studies and scientific literature discussing the operating principles, system design, heat transfer characteristics, and temperature control techniques of modern evaporators. A descriptive-analytical approach was used to identify technological trends and the advantages of applying vacuum and heating systems to the aromatherapy industry. The review results indicate that this system combination increases thermal efficiency, accelerates evaporation rates, and maintains the aroma profile and chemical quality of the oil. Furthermore, the use of an automatic temperature control system improves process precision, reduces the loss of active compounds, and supports better energy efficiency compared to conventional heating methods. This technology holds great potential for the development of modern, stable, efficient, and environmentally friendly aromatherapy diffusers.
Review Pengaruh Jenis Material Atap terhadap Efisiensi Pemanenan Energi dengan Piezoelektrik sebagai Konverter Energi Mekanik menjadi Energi Listrik Muhammad Fahmi Nurhidayat; Rifky; Kurnia Sandi Oktaris; Pandu Kusuma Pangestu; Reyhan Martin Firnanda; M. Ravi Cahya Firdaus
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/teknoka.v10i1.22505

Abstract

This research discusses the design of a piezoelectric raindrop energy harvesting system integrated into a building's roof surface. The primary objective of the research is to convert the kinetic energy of raindrops into electrical energy by utilizing the piezoelectric effect, while simultaneously designing efficient material and structural configurations that are resistant to dynamic loads. The methodology used refers to the VDI 2221 systematic engineering approach, encompassing requirements identification, concept design, material selection, numerical simulation, and prototype fabrication and testing. The piezoelectric materials used are PVDF and PZT, installed under a polycarbonate roof layer with a rectifier system and energy storage capacitors. Test results show that the system is capable of generating voltage and electrical power proportional to rainfall intensity, with maximum voltage distribution occurring in the central area of the piezoelectric plate. This research demonstrates the potential of utilizing raindrop energy as a renewable energy source and supports innovation in environmentally friendly smart roof designs.
Review: Peningkatan Produktifitas Solar Still Menggunakan Kondensor Muhammad Irfan; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

The condenser is a key component in solar desalination systems that converts water vapor into fresh water through the condensation process. The efficiency of the condenser greatly affects the amount of fresh water produced. This study aims to review the development of research on the application of salt pond condensers in seawater desalination processes. The method used is a literature review of various scientific journals that discuss internal, external, spiral and conical condenser designs and their integration with solar still systems. The results of the study show that external condensers can increase productivity, while conical condensers increase efficiency. In addition, salt ponds have the potential to become a natural condensation medium that can store heat and improve system performance. This concept can be the basis for the development of efficient, economical, and environmentally friendly desalination technology to meet the need for clean water in coastal areas of Indonesia.
Review Optimasi Ukuran dan Ketebalan Pizoelektrik untuk Pemanenan Energi Hujan pada Atap Model Bangunan sebagai Sumber Energi Listrik Kurnia Sandi Oktaris; Rifky
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

This This study aims to examine the optimization of the size and thickness of piezoelectric as the main element in harvesting rain energy from raindrops. The method used is an experiment by varying the size of the piezoelectric (1x1 cm, 3x3 cm, 5x5 cm) and thickness (0.2-0.5 cm) which is installed on the roof of the building model. The research variables measured are voltage and electric current using a multitester three times for data validity. The data is processed to determine the output electrical power and efficiency of the piezoelectric energy conversion system. The results of the study and experiments show that the size and thickness of the piezoelectric affect the output electrical power and efficiency. The results of this study found that the optimal dimensions of the piezoelectric determine the maximum output electrical power and efficiency.
Review Laju Penguapan Air Laut pada Kolam Garam Tertutup Ahmad Ahdani; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Evaporation is the process of changing liquid into vapor due to differences in vapor pressure or increased heat energy. This process is important because it forms the basis for the transfer of energy and mass from the water surface to the atmosphere and plays a role in various applications such as desalination, salt production, agriculture, liquid waste treatment, natural cooling systems, and climate studies. This study aims to determine the parameters that influence the evaporation process of seawater in a closed salt pond system based on a literature review. The methodology used is a literature study of various studies discussing the factors that influence the rate of seawater evaporation. The parameters reviewed include water and air temperature, humidity, air velocity, pressure, and radiation intensity. The review results show that temperature and radiation intensity increase the evaporation rate, while humidity and high pressure decrease it. This study provides a basis for the development of efficient and sustainable closed salt ponds.

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