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Journal : Global Forest Journal

Optimizing calliandra (Calliandra calothyrsus) biomass pellets: Impact of particle size and bark composition Wahyu Abdul Rahman; Suri, Intan Fajar; Indra Gumay Febryano; Saputra, Bagus; Duryat; Hidayat, Wahyu
Global Forest Journal Vol. 2 No. 02 (2024): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v2i02.15735

Abstract

Calliandra biomass pellets offer a promising alternative energy source to replace fossil fuels. Typically, these pellets are produced by directly processing the stem and bark of the calliandra (Calliandra calothyrsus) plant without separation, aiming for manufacturing efficiency. This study investigated the quality differences between calliandra biomass pellets with and without bark and varying particle sizes. Particle sizes used were 20 mesh, 40 mesh, and 60 mesh. The pellets were made using a 12 mm diameter biomass pellet mold and a manual hydraulic press with a pressure of 3 tons. Characterization involved assessing proximate analysis, calorific value, physical and mechanical properties, and Fourier Transform Infrared analysis. The test results were compared with biomass pellet standards from Indonesia, Japan, Korea, and Germany. Results indicate that bark affects several properties, with higher ash content observed in pellets with bark due to the higher mineral content in bark. Volatile matter decreases with finer particle size, influencing combustion rate. Moisture content is higher in pellets with bark, impacting combustion efficiency and smoke production. Fixed carbon values are influenced by moisture and volatile matter content. Calorific values are generally higher in pellets without bark and smaller particle sizes. Density and compressive strength increase with decreasing particle size. FTIR analysis reveals differences in functional groups between pellets with and without bark, indicating variations in chemical composition. Overall, this research provides insight into the potential of calliandra biomass pellets with bark and without bark along with particle size as a renewable energy source.
The effect of oil heat treatment on the color and the community’s color preferences of two Gigantochloa species Permana, Anom Tahta; Suri, Intan Fajar; Febryano, Indra Gumay; Hidayat, Wahyu
Global Forest Journal Vol. 3 No. 02 (2025): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v3i02.21027

Abstract

friendly material. Two local Indonesian bamboo species, namely apus bamboo(Gigantochloa apus) and ater bamboo (Gigantochloa atter), have been widelyused in various fields but still face challenges such as fading color and lowresistance to moisture. This study aims to investigate the color changes in apusbamboo and ater bamboo after undergoing heat treatment using oil at varyingtemperatures of 160°C, 180°C, 200°C, and 220°C. Five-year-old bamboo sampleswere cut into cylindrical shapes with a diameter of 10 cm and a height of 5 cm,then tested for color before and after the heat treatment. The treatment was carriedout for 2 hours using oil as a medium, then dried in an oven. Color changes wereanalyzed using a general colorimeter scanner. Data collection on communitypreferences for bamboo colors was conducted by distributing questionnaires. Thered-green chromaticity changes in apus bamboo exhibit a decreasing trend,whereas ater bamboo shows an increasing trend. The yellow-blue chromaticitychanges in both bamboo species show an increasing trend. For the lightness level,both bamboos have decreased. The overall color change in apus bamboo and aterbamboo increases with the increasing temperature. The color preference resultsrevealed that women prefer bright colors in both bamboo species. Men are moreselective in their color preferences; some choose bright colors, but many alsochoose dark colors.
Co-Authors Abdullah Aman Damai Abimanyu, Bondan Abimanyu, Bondan Adesna Fatrawana Adesna Fatrawana Afif Bintoro Afif Bintoro Agus Haryanto Agus Haryanto Agus Haryanto Agus Haryanto Agus Setiawan Agus Setiawan Ainin Niswati Ainin Niswati Ainin Niswati Al Qorny, Faiz Alim Fadila Rahman Anis Ambarwati Anne Carolina Apri H Iswanto Apri Heri Iswanto Apriyanita Pitri Ningrum Apriyanita Pitri Ningrum Arief Darmawan Arrofi, Ahmad Izzuddin Augustina, Sarah Aulia Asmara Loka Br Tarigan Awandi, Hafizh Bagus Saputra Bagus Saputra Bagus Saputra Bagus Saputra Bainah Sari Dewi Bangun Adi Wijaya Bangun Adi Wijaya Bondan Abimanyu Byantara Darsan Purusatama Byung Bae Park Ceng Asmarahman Ching K Man Christine Wulandari Christine Wulandari Christine Wulandari Christine Wulandari Christine Wulandari Damai, Abdulah Aman Dani, Hafiz Ansori Deded Sarip Nawawi Denni Prasetia Destia Novasari Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani Dewi Agustina Iryani, Dewi Agustina Dian Iswandaru Dian Iswandaru Dini Lestari, Dini Donghyuk Chun Doni Hapsoro Dungani, Rudi Duryat Duryat Duryat Duryat Duryat Duryat, Duryat Duryat, Duyat Elvara D Satria Eti Artiningsih Octaviani Eva Yunita Eva Yunita Fahriya Puspita Sari Faizatul FALAH Fajar Nugraha Fahriza Fajri, Ahmad Khairil Falah Rizkasumarta Fauzan Aulia Fauzi Febrianto Fauzi, Daffa Naufalian Febrian, Ardi Febryanto, Indra Gumay Fitriana, Yulia Rahma Fitrianum, Fadilah Go Un Yang Gunawan, Rhezandy Gusri Akhyar Ibrahim Hadida, Ratu Husaina Hadiyane, Anne Handian Purwawangsa Hari Kaskoyo Hari Kaskoyo Harianto, Sugeng P. Harianto, Sugeng Prayitno Hendra Prasetia Hendra Prasetia Hendra Prasetia Hokyung Choi Hyuk Im Ina Winarni, Ina Indra G Febryano Indra Gumay Febryano Indra Gumay Febryano Intan F Suri Intan Fajar Suri Irma Thya Rani Irma Thya Rani Irma Thya Rani Irma Thya Rani Irwan Sukri Banuwa Ismayati, Maya Iswandaru, Dian Jacky Michael Pah Jiho Yoo Jiho Yoo Jiho Yoo Jiho Yoo Jong Ho Kim Kadek Wikan Nandini Karina Gracia Agatha Tambunan Karina Gracia Agatha Tambunan Karliati, Tati Kaskoyo, Hari Kim, Nam Hun Kukuh Setiawan Kuswanta Futas Hidayat Kuswanta Futas Hidayat Laksana, Raden Permana Budi Lia Mulyana Lina Nur Aminah Lina Nur Aminah Lisman Suryanegara Lubis, Muhammad Adly Rahandi Manggar Arum Aristri Mareli Talaumbanua Marwanto Marwanto Marwanto Maulana, Muhammad Iqbal Maulana, Sena Maulana, Sena Maulani, Qori Melya Riniarti Melya Riniarti Mhd Muhajir Hasibuan Mia Putri Utami Mia Putri Utami Mohamad I Sya'bani Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Adly Rahandi Lubis Muhammad Aldo Kurniansyah Muhammad Alfaridzi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Naili Rahmah Nam Hun Kim Nam Hun Kim Nindya Triya Puspita Nissa Nurfajrin Solihat Nugraha, Muhammad Dimaz Nurpine Nadeak Nurpine Nadeak Oktarine Melly Aminah Harum Park, Byung Bae Park, Byung Dae Permana, Anom Tahta Prasetyo, Pangestu Prayoga, Seldi Purusatama, Byantara Darsan Putri, Mangifera Indica Dhaifullah Wangun Rafical Cahaya Utama Rahmat Safe'i Rahmat Safe’i Rahmi Adi Bazenet Rahmi Adi Bazenet Rahmi Adi Bazenet Rani, Irma Tya Rara Diantari Rasyidah Amany Rianjanu, Aditya Rini Nurindarwati Rio Ardiansyah Murda Rita K Sari Rita Kartika Sari Rodiani Rodiani Rodiani Rommy Qurniati Rubiyanti, Tri Rudi Hilmanto Rudi Hilmanto Rudi Hilmanto Rynaldo Davinsy Safe’i, Rahmat Salsabila, Sahda Samsul Bakri Samsul Bakri Sandi Asmara Sanena, Tia Silvia Sangdo Kim Sangdo Kim Sangdo Kim Sangdo Kim Saputra, Bagus sari, nurika arum See P Hwee Seldi Prayoga Seung Hwan Lee Shalehudin Denny Ma’ruf Sihyun Lee Sihyun Lee Sihyun Lee Sihyun Lee Silvia Uthari Nuzaverra Mayang Mangurai Siti Aisyah Siti Mutiara Ridjayanti Siti Mutiara Ridjayanti Slamet Budi Yuwono Slamet Budi Yuwono Sofiyan, Ade Sofiyan, Ade Soleh Muhamad Soleh Muhamad Soohyun Kim Sri Hidayati Sumaryo Gito Saputro Suri, Intan Fajar Susni Herwanti Susni Herwanti Susni Herwanti Suwanda, Astri Aulia Tarmizi Taher Tengku Muhammad Renzy Hariz Tri Putri Siadari Tri Putri Siadari Tri Yulianto Tri Yulianto Tri Yulianto Tsani, Machya Kartika Udin Hasanudin Udin Hasanudin Udin Hasanudin Udin Hasanudin Utami, Mia Putri Wahyu Abdul Rahman Widya FATRIASARI Wijaya, Bangun Adi Winarno, Gunardi Djoko Winarno, Gunardi Djoko Wisnu Satyajaya Wulandari, Christin Yadav, Sumit Manohar Yazid Bindar Yogi Sulistio Yoo, Jiho Yunita, Repha Sera Yusuf Sudo Hadi Zaini, Lukmanul Hakim