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Analisa Spesifikasi Fluff, Pellet, dan Bricket Pelepah Kelapa Sawit sebagai Biomassa Co-firing untuk Pembangkit Listrik Ari Aditia Sukma Sukma; Padil; Ahmad Fadli
Journal of Bioprocess, Chemical and Environmental Engineering Science Vol 4 No 1 (2023): Journal of Bioprocess, Chemical, and Environmental Engineering
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, UNRI

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Abstract

The abundance of palm frond waste in Indonesia makes it an ideal source as co-firing material to increase renewable energy consumption. Therefore, it is necessary to determine whether oil palm fronds in the form of fluff, pellets, and brickets can be used as co-firing fuel. This study also aims to see whether there are differences in the potential of hard and soft palm fronds as solid fuel for power plants, as well as to calculate its slagging and fouling risk. Palm fronds was dried and reduced in sized using a wood chipper then sifted with a 20 mesh sieve to obtain palm frond fluff, then the fluff was mixed with 22% tapioca adhesive (weight ratio of 20% of the biomass) to be molded into pellet. Meanwhile, wood brickets was prepared by pyrolyzing the hard fronds (T= 550oC, t= 5 min) and mixing the charcoal obtained with 22% tapioca adhesive (weight ratio of 30% of the biomass). From the results of the analysis carried out, it is known that palm frond bricket provides the best results with an NCV value of 7095 cal/g. On the other side, both hard frond fluff and soft frond fluff contains the same sulfur content (0.06%), thus the difference in using hard or soft fronds as co-firing fuel does not have much effect. Furthermore, based on the analysis of potential slagging and fouling, all types of oil palm frond samples studied are shown to have a low to medium risk level.
Pengaruh Suhu dan Kelembaban terhadap Produktivitas Jamur Tiram Eteruddin, Hamzah; Padil; Dini, Isna Rahma; Huda, Feblil; Febrizal
JURNAL TEKNIK Vol. 18 No. 2 (2024): Edisi Oktober 2024
Publisher : JURNAL TEKNIK UNILAK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/teknik.v18i2.23256

Abstract

Indonesia is one of the countries that has various types of mushrooms, both those that are edible and those that are not. One type of edible mushroom is the oyster mushroom. In its growth, oyster mushrooms are greatly influenced by the temperature and humidity in the mushroom house. The purpose of this research is to determine the effect of temperature and humidity on mushroom productivity and to identify the optimal temperature and humidity for mushroom growth. The research method involved measuring temperature and humidity in the morning, afternoon, evening, and night every day for 2 months, namely June and July 2024. The temperature and humidity data collected were the daily averages. After obtaining the average daily temperature and humidity data, the next step was to observe the shape and color of the oyster mushrooms and collect data on the number of mushrooms obtained each day for 2 months. From the data analysis, it was found that the oyster mushrooms hardened and turned yellow when the temperature and humidity were unstable for mushroom growth. The optimal average temperature and humidity were 27°C and 82%, with the number of mushrooms obtained being 55kg/day.
Co-Authors Ahmad Fadli Ari Aditia Sukma Sukma Feblil Huda Febrizal Ujang Hamzah Eteruddin Isna Rahma Dini