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All Journal KACANEGARA Jurnal Pengabdian pada Masyarakat ARMATUR : Artikel Teknik Mesin dan Manufaktur Jurnal Polimesin
Dondi Kurniawan
universitas lampung
Aerospace Engineering Automotive Engineering Control & Systems Engineering Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisa Suhu Pembakaran Sampah Kering Sebagai Potensi Energi Panas Untuk Proses Pengeringan Angga Darma Prabowo; Hadi Prayitno; Dondi Kurniawan; Martinus; Ahmad Yonanda
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 1 (2026): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i1.10423

Abstract

Waste management poses a significant environmental challenge, yet dry waste holds potential as a renewable energy source through Waste-to-Energy (WTE) technology. This study aims to analyze the potential of utilizing heat from dry waste combustion for drying applications using a hybrid approach of experimental methods and Computational Fluid Dynamics (CFD) simulation. The experimental stage was conducted by burning dry waste in a furnace to obtain the average hot gas temperature, which was measured at 295.33°C. This value was then used as a boundary condition in the CFD simulation of an integrated heat exchanger system within the furnace. Air at a temperature of 30°C was flowed into the heat exchanger with four mass flow rate variations (0.087, 0.092, 0.126, and 0.165 kg/s). The simulation results show that the system is capable of heating the air to a temperature range of 46.05°C to 58.05°C, which is ideal for drying applications. An inverse relationship was found between the mass flow rate and the outlet temperature, where a lower flow rate results in hotter air. This research proves that the heat recovery system from dry waste combustion is technically feasible and has the potential to be a sustainable alternative energy solution for drying processes.
Pelatihan pembuatan filter udara kendaraan berbasis pelet zeolit dari fly ash bagi siswa SMK Bandar Lampung Dondi Kurniawan; Fajriyanto Fajriyanto; Vera Agustriana Noorhidana; Ageng Sadnowo Repelianto
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 9, No 3 (2026): Agustus
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/kacanegara.v9i3.3518

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk menumbuhkan kesadaran dan keterampilan peserta didik SMKN 5 dan SMKN 7 Bandar Lampung dalam memanfaatkan limbah industri, khususnya fly ash, menjadi produk bernilai guna melalui pelatihan pembuatan filter udara kendaraan berbasis pelet zeolit. Pelatihan dilaksanakan melalui metode ceramah pemaparan materi, diskusi interaktif dan praktik demonstrasi langsung, yang melibatkan 15 siswa. Evaluasi dilakukan dengan membandingkan hasil pre-test dan post-test untuk menilai peningkatan pemahaman siswa.  Hasil menunjukkan adanya peningkatan yang cukup baik dari rata-rata skor pre-test sebesar 22,67% menjadi post-test 93,33% dengan perolehan nilai N-Gain sebesar 91,57% yang termasuk dalam kategori efektif. Hasil tersebut menunjukkan bahwa pelatihan ini tidak hanya meningkatkan pengetahuan teknis siswa, tetapi juga menumbuhkan kepedulian terhadap lingkungan dan kemampuan berinovasi dalam mengubah limbah menjadi solusi ramah lingkungan. Secara lebih luas, kegiatan ini berkontribusi pada pendidikan kejuruan yang aplikatif dan relevan dengan isu global tentang pengelolaan limbah dan pengurangan polusi udara.
Experimental evaluation of the thermal and exergy performance of a flat spiral-tube receiver for a parabolic dish collector Ahmad Yonanda; Muhammad Raihan Junidy; Muhammad Irsyad; Amrizal Amrizal; Harmen Harmen; Dondi Kurniawan; Angga Darma Prabowo
Jurnal Polimesin Vol 23, No 6 (2025): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i6.7557

Abstract

Global dependence on fossil fuels continues to drive the search for cleaner, more sustainable energy sources. One promising technology is the Parabolic Dish Collector (PDC), harnessing concentrated solar energy. The receiver in a PDC is pivotal to overall thermal efficiency and useful energy output. This study evaluates the thermal and exergy performance of a manufactured flat spiral-tube receiver designed to enhance heat transfer. Experiments were conducted under tropical condition between 10:00 and 14:00 local time at three volumetric flow rates (0.5, 0.8, and 1.1 LPM). The 0.5 LPM flow rate yielded the best performance, with a fluid temperature rise up to 43.8°C, a thermal efficiency of 39.1%, and a peak exergy efficiency of 1.1%. The spiral geometry improved fluid residence time, enabling more effective heat absorption. These findings demonstrate that a simple, manufactured spiral tube receiver can improve PDC performance, offering an efficient and cost-effective solution for solar thermal systems.
Co-Authors Ageng Sadnowo Repelianto Ahmad Yonanda Angga Darma Prabowo Angga Darma Prabowo Fajriyanto Fajriyanto Hadi Prayitno Harmen Harmen Martinus Muhammad Irsyad Muhammad Raihan Junidy Vera Agustriana Noorhidana