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All Journal JOURNAL OF ELECTRICAL AND SYSTEM CONTROL ENGINEERING JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY AMALIAH: JURNAL PENGABDIAN KEPADA MASYARAKAT Budapest International Research in Exact Sciences (BirEx Journal) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) IRA Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian kepada Masyarakat
Darianto Darianto
Fakultas Teknik, Universitas Medan Area
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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Evaluasi Variasi Kondisi Operasi Terhadap Perpindahan Panas Kondensor Pada Proses Destilasi Daun Serai Wangi Arga Daniel Pratama Sirait; Darianto Darianto; Iswandi Iswandi; Bobby Umroh; Muhammad Idris
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 2 (2026): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i2.299

Abstract

The condenser plays a crucial role in determining the efficiency of lemongrass (Cymbopogon citratus) essential oil distillation by facilitating heat transfer and vapor condensation. This study analyzes the effect of varying operating conditions on the heat transfer rate, Log Mean Temperature Difference (LMTD), condenser effectiveness, and citronella oil production. The evaluation involved three test variations, comparing heat transfer parameters and condenser performance. The results indicate that the heat transfer rate increased from 152,438.27 W in Variation I to 170,963.54 W in Variation II, reaching 186,544.68 W in Variation III. This increase was accompanied by a rise in the LMTD value from 25.18°C to 29.74°C, an improvement in condenser effectiveness from 81% to 89%, and an increase in the conversion of condensate vapor mass into citronella oil from 28% to 36%. These results demonstrate that the increase in heat transfer rate is directly proportional to condenser effectiveness and the success of the condensation process. Variation III represents the optimum operating condition, as it yielded the most efficient heat transfer and the best condenser performance during the citronella leaf distillation process.
Analisa Unjuk Kerja Blower Sentrifugal Pada Mesin Turbo Chopper Jerami Padi Sebagai Pakan Ternak Alternatif Darianto Darianto; Fadly Ahmad Kurniawan; Zulfikar Zulfikar; Iswandi Iswandi; Nicolas Sabar Hutasoit
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 2 No 3 (2023): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v2i3.84

Abstract

This study aims to analyze the performance of a centrifugal blower in a Turbo Chopper for Rice Straw as Ruminant Livestock Feed. Conducted over six months at a machine production workshop in Medan Perjuangan, the research employed a qualitative method. The focus was on the blower's impeller, a critical component for increasing air pressure. Tests were performed on impellers with varying numbers of blades (4, 6, and 8) at a constant speed of 1400 rpm. The results showed that the impeller with 4 blades produced the highest wind speed of 4.8 m/s and the greatest efficiency of 0.029%. The study also included an analysis of the blower's torque, flow capacity, and efficiency. These findings are significant for industrial applications, particularly in the process of chopping rice straw, where the centrifugal blower can enhance operational efficiency and effectiveness. This study provides insights into the use of centrifugal blowers to improve the performance of agricultural equipment and potential applications in other industries.
Co-Authors Achmad Jusuf Zulfikar Aginta Yolanda Alfian Ramadhan AMRU SIREGAR Amru Siregar Andhika Ariyudha Arga Daniel Pratama Sirait Bobby Umroh Bobby Umroh Budhi Santri Kusuma Dedi Kurniadi Eryanti Novita Fadly Ahmad Kurniawan Felix Sigalingging Gustam Harahap Gustami Harahap Haniza Heri Prinando Nasution Husri Zarmawan Indra Hermawan Indra Hermawan Irvan Hendrawan Surya Dinata Ishak Ishak Iswandi Iswandi Jufrizal Jufrizal Kamaluddin Kiki Syahbana Sembiring M. Yusuf R Siahaan Mahliza Nasution Muhammad Fadlan Siregar Muhammad Idris Muhammad Yusuf Rahmansyah Siahaan Nicolas Sabar Hutasoit Nurdiana Poppy Aprilya Sitorus Rahmatullah . Rinto Supardi Sipangkar Saturnus Wardiman Gulo Shera Dwy Siswa Panjang Hernos Siswo Pranoto Syofyan Anwar Syahputra Tino Hermanto Uun Novalia Harahap Weriono Willyam Warikson Sinaga Yetti Meuthia Hasibuan Yoga Prabowo Yopan Rahmad Aldori Yunida Berliana Zainuddin Ginting Zetta Fazira