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All Journal TEKNIK WIDYA TEKNIKA Transmisi ROTOR: JURNAL ILMIAH TEKNIK MESIN Turbo : Jurnal Program Studi Teknik Mesin Resona : Jurnal Ilmiah Pengabdian Masyarakat Conference on Innovation and Application of Science and Technology (CIASTECH) JOURNAL OF SCIENCE AND APPLIED ENGINEERING JAST : Jurnal Aplikasi Sains dan Teknologi Jurnal Energi dan Teknologi Manufaktur Scientific Journal of Mechanical Engineering Kinematika JURNAL FLYWHEEL GUYUB: Journal of Community Engagement Jurnal Mesin Nusantara ARMATUR : Artikel Teknik Mesin dan Manufaktur Surya Teknika: Jurnal Ilmiah Teknik Mesin Prosidia Widya Saintek Jurnal Polimesin PROTON : Jurnal Ilmu-Ilmu Teknik Mesin J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Nova Risdiyanto Ismail
Program Studi S1 Teknik Mesin, Fakultas Teknik, Universitas Widyagama Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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Investigasi Penambahan Internal dan Eksternal Reflektor untuk Meningkatkan Kinerja Solar Still Double Slope Nafisah, Viona; Ismail, Nova Risdiyanto; Fadhillah, Arief Rizki; Suwandono, Purbo
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 9 No. 2 (2025): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v9i2.2432

Abstract

Kebutuhan air tawar terus meningkat seiring dengan pertumbuhan populasi, terutama di daerah pesisir dan kepulauan yang sering mengalami kekurangan air saat musim kemarau. Salah satu solusi yang dapat digunakan adalah teknologi solar still, meskipun produktivitasnya masih rendah. Untuk meningkatkan kinerja solar still, perlu dilakukan pengembangan dengan menambah reflektor guna meningkatkan energi radiasi matahari yang masuk ke sistem. Investigasi ini bertujuan mengkaji penambahan reflektor internal dan eksternal untuk meningkatkan performa solar still double slope (SSDS). Metode yang digunakan adalah eksperimen dengan membandingkan kinerja SSDS, penambahan reflektor internal (SSDS.RI), dan penambahan reflektor internal dan eksternal (SSDS.RIE). Hasil penelitian menunjukkan bahwa SSDS.RIE menghasilkan produktivitas tertinggi sebesar 4.24 liter/m².hari dibandingkan dengan SSDS.RI dan SSDS. Efisiensi tertinggi juga diperoleh pada SSDS.RIE sebesar 55.83%, lebih tinggi dibandingkan SSDS.RI dan SSDS.
The effect of biomass ratio and CaO/Si catalyst on hydrogen production from corncob–wood pellet gasification Suwandono, Purbo; Wijayanti, Widya; Ismail, Nova Risdiyanto; Akbar, Dzulfikar Johan; Pambudi, Wisnu Setyo Catur
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.v23i6.7803

Abstract

Biomass co-gasification combined with catalytic upgrading offers a promising pathway for enhancing hydrogen-rich syngas production. This study investigates co-gasification of corncob and wood pellets in an updraft fixed-bed reactor, integrated with ex-situ CaO/Si catalytic upgrading. Nine experimental runs were conducted by varying the corncob: pellet ratio (1:1–3:1), catalyst loading (6–10 wt% of 80 g biomass), and CaO/Si ratio (1:1–3:1), while reactor geometry, inlet air speed (10 m/s), and run duration (1500 s) were kept constant. The product gas was routed through an ex-situ catalyst bed, cooled in a condenser, and then analyzed using calibrated MQ sensors (H₂, CH₄, CO, CO₂). Gas composition was monitored using calibrated MQ sensors to provide comparative trends among operating conditions. The best performance was observed in Run 7 (50:50 biomass ratio, 10 wt% catalyst, CaO/Si = 2:1), achieving peak H₂ at 8000 ppm and CH₄ at 46,000 ppm, while CO₂ decreased to 16,000 ppm compared with several other runs. This outcome was consistent with CO₂ sorption by CaO, which can shift reactions toward higher H₂ formation (e.g., via the WGS equilibrium), and was supported by downstream upgrading reactions in the hot-gas line. The results suggest that combining biomass blending with ex-situ CaO/Si upgrading can improve the characteristics of hydrogen-enriched syngas within the investigated operating range.Biomass co-gasification combined with catalytic upgrading offers a promising pathway for enhancing hydrogen-rich syngas production. This study investigates co-gasification of corncob and wood pellets in an updraft fixed-bed reactor, integrated with ex-situ CaO/Si catalytic upgrading. Nine experimental runs were conducted by varying the corncob: pellet ratio (1:1–3:1), catalyst loading (6–10 wt% of 80 g biomass), and CaO/Si ratio (1:1–3:1), while reactor geometry, inlet air speed (10 m/s), and run duration (1500 s) were kept constant. The product gas was routed through an ex-situ catalyst bed, cooled in a condenser, and then analyzed using calibrated MQ sensors (H₂, CH₄, CO, CO₂). Gas composition was monitored using calibrated MQ sensors to provide comparative trends among operating conditions. The best performance was observed in Run 7 (50:50 biomass ratio, 10 wt% catalyst, CaO/Si = 2:1), achieving peak H₂ at 8000 ppm and CH₄ at 46,000 ppm, while CO₂ decreased to 16,000 ppm compared with several other runs. This outcome was consistent with CO₂ sorption by CaO, which can shift reactions toward higher H₂ formation (e.g., via the WGS equilibrium), and was supported by downstream upgrading reactions in the hot-gas line. The results suggest that combining biomass blending with ex-situ CaO/Si upgrading can improve the characteristics of hydrogen-enriched syngas within the investigated operating range.
Co-Authors AA Sudharmawan, AA Achmad Burhanudin Agung Suprapto, Agung Agus Suyatno Ahmad Zainul Huda Akbar, Dzulfikar Johan Akhmad Farid Akhmad Farid Akhmad Farid Akim Tua Al Barr, Muhammad Haafizh Ana Sopanah, Ana Andersen Karel Ropa Andi Hardianto Andi Kurniawan Andi Kurniawan Andika Pratama Andika Pratama Andrian Bayu Pradhana Andy Hardianto Angga Ridwan Pratama Arie Restu Wardhani Arief Rizki Fadhillah Baihaqi, Rosiawan Bayu Ismoyo Burhanudin, Achmad Candra Aditya Candra Aditya Catur Heri Setiyawan Dadang Hermawan Dadang Hermawan Dadang Hermawan Deky Framasta Didik Hardianto Didik Hardianto Dwi Prasetio Utomo Fachrudin Fachrudin Fattah, Hamidah Nurrul Frida Dwi Anggraeni Frida Dwi Anggraeni Fuad Arizal Yahya Gatot Soebiyakto Gatot Soebiyakto Gatot Soebiyakto Hari Budi Raharjo Helmy Darmawan Hendra Kurniawan Heni Pujiastuti Hutri Wicaksono, Leo Jumali - Kerong, Adrianus Geroda Khaerul Anwar Khaerul Anwar Khaerul Anwar Kurniawan, Anggie Leo Hutri Wicaksono Leo Hutri Wicaksono Leo Hutri Wicaksono Leo Hutri Wicaksono M. Ghazali Arrahim Mardianto, Dias Mochammad Nurcholis Majid Muhammad Agus Sahbana Muhammad Agus Sahbana Muhammad Agus Sahbana Muhammad Nur Hasan Muzaki, Mochamad Nafisah, Viona Naif Fuhaid Naif Fuhaid Nasution, Annio Indah Lestari Ngudi Tjahjono Nurhasan, Muhammad Nurida Finahari Pambudi, Wisnu Setyo Catur Prasetyo, Muhammad Awi Purbo Suwandono Rahayu Puji Suci Renada Julia Sakinah Ridho Guruh Syah Putra Riza Bahtiar Sulistyan Rizki Hidayat Sang Saka Adi Pangestu Santos, Armando Ferreira dos Sigit Untoro Silviana Silviana Sitanggang, Rickie Natanael Solichi, Azis Solly Aryza Sujawi Sholeh Sadiawan Supriadi Supriadi Suriansyah - Suriansyah - Syamsiar, Syamsiar teddy wicaksono wicaksono Wicaksono, Hangga Wicaksono, Leo Hutri Widya Wijayanti Wijaya, Rendra Adi Winnugroho Wiratman, Manfaluthy Hakim, Tiara Aninditha, Aru W. Sudoyo, Joedo Prihartono Yundari, Yundari