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All Journal Rotasi Rekayasa Mesin REKAYASA Turbo : Jurnal Program Studi Teknik Mesin Jurnal Pengabdian Masyarakat MIPA dan Pendidikan MIPA Applied Research and Smart Technology (ARSTech) Abdi Masya Prosiding University Research Colloquium
Jamaldi, Agus
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Education Electrical & Electronics Engineering Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Other

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Optimalisasi Teknologi Fog Harvesting: Studi Performa Fog Collector Model Savonius dan Datar Jamaldi, Agus; Supriyanto, Agung; Prihastomo, Arik; Davantio, Jeremy Adi
Rekayasa Vol 18, No 2: Agustus, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i2.28510

Abstract

Fog harvesting or fog catching is a technological breakthrough used as a sustainable and environmentally friendly water source. This technology utilizes mist converted into water droplets captured by the fog collector. This study was conducted to analyze the effectiveness of the number and shape of fog collectors in a fog harvesting prototype. The shape of the fog collector used is flat and semicircular (savonius). The variation in the number of fog collectors used is 2, 4, and 6 pieces. The fog collector material is High-Density Polyethylene (HDPE) with Rectangular and Raschel mesh. The area of flat and semicircular fog collectors (Savonius) is 209.25 and 310.5 cm2, with a shading coefficient of 60%, respectively. The data collection method is carried out by blowing the mist generated by the ultrasonic mist maker to the fog collector using a blower for 1 hour. The water mass amount that can be absorbed by the fog collector is obtained by weighing it every 15 minutes. The results showed that the more fog collectors, the more water mass was produced. The difference in the type of fog collector mesh also affects the amount of water mass produced. The semicircular type (Savonius) produces more water mass from fog than the flat type. The experiment results showed that the semicircular type (Savonius) with 6 fog collectors with the Raschel mesh type produced the most water mass of 6.27 grams. Based on the results, the semicircular fog collector (Savonius) with the Raschel mesh type is more effective than the flat type.
Rancang Bangun dan Pengujian Prototype Hybrid Solar Dryer Jamaldi, Agus; Budi Raharjo, Emanuel; Surwono, Edi; Yordan Santoso, Lewi; Catur Prasojo, Ryan
Rekayasa Vol 17, No 2: Agustus, 2024
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v17i2.22673

Abstract

This study aims to test the prototype solar dryer using a hybrid drying mechanism. The study utilized direct and indirect drying models. The indirect drying used solar collectors. Solar collector serves to absorb heat captured by the black body inside. The solar collector media used are flat plates and corrugated plates. The hot air from the solar collector is blown and forced by the blower into the drying chamber. Blowers operate using electrical energy generated by solar panels. The experiment lasted for two days from 09.00 a.m. to 03.00 p.m. The observations focused on the temperature of the solar collector and the drying chamber as well as the output of electricity generated by the solar panels. The test results showed the highest temperature reached by the solar collector with a corrugated plate was 50.500C, while the flat plate was 49.600C. Furthermore, the highest electrical power produced by solar panel was 11.33 Watts.
Optimasi Kinerja Thermoelectric Generator (TEG) melalui Analisis Distribusi Kalor dan luaran Listrik dengan Variasi Sirip Penukar Panas Atmoko, Nugroho Tri; Jamaldi, Agus; Ulikaryani, Ulikaryani; Pisti Cikarge, Ghia
Rekayasa Vol 18, No 3: Desember, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i3.30546

Abstract

The utilization of waste heat from conventional gas stoves as electrical energy represents an effort to improve household energy efficiency. Thermoelectric generator (TEG) technology enables the direct conversion of thermal energy into electrical energy without moving components. This study aims to investigate the performance of TEGs in harnessing waste heat from gas stoves through the application of various heat-sink fin configurations to enhance thermal absorption. Three types of fins—long fins, short fins, and random fins—were employed as heat exchangers and mounted on a modified stove enclosure. Four TEG modules were connected in series and tested to measure operating temperatures and the resulting electrical output. The findings indicate that fin configuration significantly influences heat distribution and TEG performance. The random fin model demonstrated the highest heat absorption capability, reaching 94.112 J/s, thereby increasing the temperature gradient across the TEG modules. Consequently, the random fin model also produced the highest electrical output, generating 3.369 Watts, outperforming the other fin designs. These results highlight the critical role of fin geometry in optimizing heat transfer within TEG systems. In conclusion, the random fin configuration is the most effective heat exchanger design for TEG applications on gas stoves, as it enhances heat absorption efficiency and delivers greater electrical power output. This finding offers important potential for further development of self-sustaining energy systems in household appliances.
Co-Authors A.N, Sebastian Raul Afif Faishal Agung Prasetyo Agung Supriyanto, Agung Alfarizi, Fikri Yudi Ardiyanto, Farit Ardiyanto, Wawan Arif Fathurohman, Arif Atmoko, Nugroho Tri Budi Nugroho Budi Raharjo, Emanuel Catur Prasojo, Ryan Davantio, Jeremy Adi Deni Andriyansyah Ghoni, Ruzlaini Gilang Ramadhan Hassan, Hassan Khamis Hendriyanto, Deva Hidayah, Fatimah Nur Joharwan, Johanes Wawan Krisitiawan, Samuel Ardhi Margono Margono Marwan Effendy Marwan Effendy Nugroho, Wasis Pisti Cikarge, Ghia Prihastomo, Arik Purwono, Arif Hidayat Raharjo, Emanuel Budi Rahmadi, Muhammad ramadhan, Ichsan Rengga, Fedrian Ahmadthur Rifai, Damhuji Saputro, Eko Wahyu Savidaprima, Albert Yunatan Sriyanto Surwono, Edi Susanto, Husein Arif Tamzil, Oliver Kurniaawan Teguh Wahyudi Tilfah, Raffi Abdullah Al-Latif Tri Widodo Besar Riyadi Ulikaryani, Ulikaryani Wicaksono, Muh. Tsaqila Yordan Santoso, Lewi