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All Journal Mekanika: Majalah Ilmiah Mekanika
Tito Gusti Nurrohim
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Design, Production Cost, and Air Flow Distribution of Biomass Pellet Furnace Heru Sutanto; Suyitno Suyitno; Wibawa Endra Juwana; Tito Gusti Nurrohim
Mekanika: Majalah Ilmiah Mekanika Vol 20, No 2 (2021): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v20i2.49232

Abstract

Biomass attracts a great deal of attention to be converted into green fuels in the form of pellets. The furnace is needed to burn pellets to generate heat up to 300 kW. In addition to meeting the heat capacity needs of the small and medium-sized industries, furnaces must also be competitive in terms of price. The purpose of this study is therefore to obtain details of the cost of manufacturing the furnace and the model of air flow that occurs in the furnace. The cost of production of the furnace includes manufacturing costs, assembly costs, machining and repair costs. The findings revealed that the key portion of the cost of the furnace was a material cost of 77%. The findings of the simulation showed that the total pressure difference of up to 850 Pa and had to be resolved by air-supplying blowers. The gas velocity ranges from 2 to 10 m/s and rises significantly near the exit to 42 m/s.
Pembakaran Bersama Biomassa dan Batu Bara: Pengaruh Rasio Biomassa-Batu Bara dan Excess Air Heru Sutarto; Tito Gusti Nurrohim; Albert Xaverio Ilyas; Suyitno Suyitno
Mekanika: Majalah Ilmiah Mekanika Vol 19, No 1 (2020): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v19i1.40039

Abstract

Pemanfaatan batu bara dan biomassa untuk menghasilkan panas dan daya semakin meningkat seiring dengan kebutuhan energi yang semakin tinggi. Cadangan batu bara Indonesia yang sebagian besarnya adalah batu bara kualitas rendah, menarik untuk diteliti bersamaan dengan pemanfaatan biomassa. Sehingga tujuan dari studi ini adalah melakukan investigasi pengaruh perbandingan udara bahan bakar suatu tungku pembakaran bersama antara biomassa dan batu bara. Penelitian dilakukan secara simulasi computer menggunakan perangkat lunak ASPEN PLUS. Hasil dari penelitian menunjukkan pemodelan termodinamika dengan ASPEN PLUS mampu menyimulasikan pembakaran bersama antara biomassa dan batu bara. Penambahan biomassa menurunkan temperatur gas pembakaran dari 900°C menjadi 400°C sehingga menurunkan kadar NOx dan SOx. Pengaruh excess air menurunkan temperatur pembakaran. Efisiensi tungku pembakaran bersama antara biomassa dan batu bara diatas 60% dan dipengaruhi oleh komposisi campuran.
Co-Authors Albert Xaverio Ilyas Heru Sutanto Heru Sutarto Suyitno Suyitno Wibawa Endra Juwana