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All Journal Buletin Agrohorti Jurnal Ilmu Pertanian Indonesia Teknotan: Jurnal Industri Teknologi Pertanian Jurnal AGROTEKNOLOGI Jurnal Keteknikan Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL PANGAN Jurnal Agricultural Biosystem Engineering
Gatot Pramuhadi
Departemen Teknik Mesin Dan Biosistem Fakultas Teknologi Pertanian IPB University Bogor, Jawa Barat Indonesia And Pusat Pengembangan Ilmu Teknik Untuk Pertanian Tropika (CREATA) IPB University, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology Social Sciences Other

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Study of Spray Fogging Performance Using a Combination of Fogging Machine, Electric Sprayer, and Air Blower Gatot Pramuhadi; Josua Natanael; Nenda Fuji Putri Daliesta
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.866-878

Abstract

This study aims to determine and analyze the parameters of spray fogging performance for the application of pesticide fog. Air blower spraying performance can be increased by regulating the type of fan and type of air blower. Setting the type of fan in air blower is axial fan and centrifugal combined with cone of 4, 6, and 8 holes. The most optimum combination of the test treatment is the combination of axial fan air blower and 4-hole cone. Spray fogging can be increased by adjusting the combination spray angle between fogging machines and air blowers at various observation distances. The combination spray angle setting is angle of 15°, 30°, and 45° and the observation distance of 1 meter to 4 meters. The results of the analysis and determination of spray fogging performance parameters produce an angle of 45° as the most optimum spray angle from the observation distance of 1 meter to 4 meters. This is indicated by the average value of the droplet diameter of 78.74 μm, a 70 droplet/cm2 droplet density, an air flow speed of 1.97 m/s, and the temperature of the flocking of 31.8℃. Keywords: Air blower, Droplets, Fogging, Nozzle, Spray.
Performance Evaluation of a Modified Granulator Based on Operating Parameters for Bioherbicide Granule Production Gatot Pramuhadi; Muhamad Achmad Chozin; Endang Gunawan; Vitho Alveno; Kusuma Darma
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.554-561

Abstract

Bioherbicide granules is a new innovation in weed control produced using a granulator machine. This study aimed to evaluate the performance of a modified pan granulator prototype intended for bioherbicide granule production. Wheat flour and tapioca flour were used as starch-based substitute materials to assess the mechanical performance of the granulator. Granulation performance was evaluated by varying the pan inclination angle, pan rotational speed, and spraying duration. The experimental treatments consisted of two inclination angles (40° and 45°), two rotational speeds (15 rpm and 35 rpm), and three spraying durations (20 s, 30 s, and 40 s). The results showed that the machine produced granules with an average diameter ranging from 4.01 mm to 6.08 mm and diameter uniformity between 90.80% and 96.23%. Increasing the spraying duration enhanced inter-particle bonding, resulting in larger granule diameters, while increasing the pan rotational speed from 15 rpm to 35 rpm reduced granule size due to stronger material–scraper interactions. The most favorable granulation performance among the tested conditions was obtained at pan inclination angle of 40° and rotational speed of 35 rpm, producing average granule diameters <5 mm that in accordance with SNI 7698:2011. Higher rpm resulted in more stable granule diameter uniformity, indicating improved particle homogeneity.
Co-Authors Abdillah, Kemas Asror Agus Sutejo Agusta, Waqif Ahmad Jaelani Sidik Ahmad Jaelani Sidik Ahmad Musyafa Haljauhari Andri Asmoro Surbakti Anhar, Fahri Anik Rahayu Asep Sapei Ayu, Zavira Mega Chitra Gusti Indah Walpuri Diaguna, Ridwan Dionisius Dwi Wicaksono Dymaz Gonggo Yuda Arditha E. Namaken Sembiring Edi Santosa Eduard Namaken Sembiring Endang Gunawan Frans Jusuf Daywin Henry Haryanto Herdhata Agusta Johannes Johannes Josua Natanael Kusuma Darma Maulana, Sidik Muhamad Achmad Chozin Muhammad Aji Setiawan Muhammad Haikal Kusdian Muhammad Idkham Muhammad Naufan Rais Ibrahim Rais Ibrahim Nenda Fuji Putri Daliesta Nenda Fuji Putri Daliesta Oteng Haridjaja Palupi, Nurheni Sri Raesa Firdiansyah Pratama Riza Fahri Sam Herodian Sidik, Ahmad Jaelani Sofyan Zaman Sucahyo, Lilis Syaiful Anwar Tineke Mandang Trya Adheshi Holqi Ulya, Putri Rutbata Vitho Alveno Walpuri, Chitra Gusti Indah Waqif Agusta Wawan Hermawan Wicaksono, Dionisius Dwi Zavira Mega Ayu