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Kasda, Kasda
Universitas Subang
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Experimental Study on Soaked Corn Cobs as Feedstock for Biomass Gasification in an Open Downdraft Gasifier Kosim, Muhtar; Kasda, Kasda; Saputra, Dede Iman; Kurnia, Yuda; Setioputro, Novandri Tri
Journal of Applied Agricultural Science and Technology Vol. 9 No. 2 (2025): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v9i2.330

Abstract

Fossil fuels, which account for 83% of Indonesia's total energy supply, are depleting and environmentally unsustainable. Corn cob biomass, with an annual yield of 4.34 million metric tons, presents a viable alternative. Through gasification at temperatures of 700–1200°C, corn cobs can be converted into combustible gas or syngas. To enhance syngas yield, the corn cob gasification process can be optimized by increasing moisture content through soaking. However, experiments with soaked corn cobs have shown a significant decline in temperature and gasification zone performance. The gasification temperature decreased from 1024°C to 614°C, falling below the 700°C threshold. Additionally, the gasification zone shifted significantly downward in the reactor. This reduction is attributed to the high moisture content of the corn cobs, which exceeded 30%, reaching 56.78%, allowing the gasification process to last for 48 minutes. Before the gasifier ceased operation, syngas production achieved a promising average thermal power of 1.76 kW with an efficiency of 7.14%. These findings indicate that soaked corn cobs can serve as biomass gasification feedstock, provided the moisture content does not exceed 30%.
Pengembangan Portal Informasi sebagai Media Promosi Digital bagi Petani Rumput Gajah Kasda, Kasda; Jaja, Jaja; Miliyawati, Bety; Suparman, Aldi; Wahidi, Zofan; Faturohman, Yadi
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4428

Abstract

Mandiri Rancage merupakan salah satu kelompok tani yang berada di Desa Curugrendeng Kabupaten Subang yang memiliki kegiatan budidaya rumput gajah, untuk mendapatkan peluang yang lebih meningkatkan produksi maka perlu adanya teknologi untuk mempromosikan kegiatan budidaya rumput gajah tersebut dengan menggunakan portal informasi berbasis website, agar menghasilkan portal yang tepat maka perlu dilakukan penerapan metode PSP atau pedekatan, sosialisasi dan pelaksanaan. Dengan adanya metode ini dan telah dilaksanakn sesuai tahapan yang ada maka telah menghasilkan portal informasi berbasis website yang memiliki lima fungsi utama yang dapat membantu ekspos kegiatan budidaya rumput gajah pada kelompok tani mandiri rancage.
PHYSICAL-MECHANICAL PROPERTIES OF PINEAPPLE LEAF FIBRE REINFORCED IN UNSATURATED POLYESTER RESIN FILLED WITH CALCIUM CARBONATE Rachman, Maulana; Kasda, Kasda; Komara, Achmad Moeslihat; Gunawan , Harjadi; Setyanto, Djoko
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1451

Abstract

Using natural fibres is often recommended as polymer composite materials owing to their potential to reduce the pollution of synthetic material waste. This study aimed to obtain the physical properties of unsaturated polyester resin matrix composite containing calcium carbonate fillers of 15 and 30 parts per hundred weights of the resin and natural pineapple leaf fibre of the amount 20% and 30% of the composite weight. The composite samples were three millimetres thick, with the pineapple leaf fibres arranged in one longitudinal direction. Some parameters observed included density, water absorption, response to fire, hardness, tensile strength, modulus of elasticity, and impact strength. The results showed that adding calcium carbonate filler into the matrix increased the density, water absorption, hardness, and modulus of elasticity of the composite. However, it reduced the flame propagation rate, tensile strength, and impact strength. Also, the use of pineapple leaf fibre contributed to increased water absorption, rate of flame propagation, tensile strength, modulus of elasticity, and impact strength of the composite, but it reduced the density and hardness. As these samples use economical materials, they are likely valuable for building materials that do not require high mechanical properties, especially guttering materials.
Co-Authors Albayan, Bayu Aldi Suparman Ari Aji Bekti Ari Ajibekti Masriwilaga ari Wibowo As'ari Djohar Bety Miliyawati Deny Poniman Kosasih Dian Susanto dian susanto Djoko Setyanto Faturohman, Yadi Firmansyah, Rian Oktariana Fitriyanto, Noor Rian Friyanto, Didit Gunawan , Harjadi Hari Din Nugraha Irawan, Yusril Jaja Jaja JAJA, JAJA Kencanasari, R. A. Vesitara Kencanasari, R.A. Vesitara Komara, Achmad Moeslihat Kosasih, Deny Poniman Kurnia, Yuda Malik, Syaeful Maulana Rachman Maulana Rachman Muhtar Kosim Mumu Komaro Nugraha, Hari Din Rachman Setiawan Reni Nuril Komari, Reni Nuril RR. Ella Evrita Hestiandari Sandi Ramahdan Saputra, Dede Iman Satibi, Ahmad Setioputro, Novandri Tri Sugeng Sutikno Suparman, Aldi Susanto Susanto Trisanti, Trisanti Wahidi, Zofan Wardaya Wardaya Wijaya, Asep Kurnia Yadi Faturohman Zoffan Wahidi