Evaluasi Prediksi Nilai Higher Heating Value (HHV) Biomassa Berdasarkan Analisis Ultimate Evaluation of Prediction Higher Heating Value (HHV) of Biomass-Based on Ultimate Analysis

Main Article Content

Made Dirgantara
Novi Kristian
Karelius Karelius

Abstract

Biomassa merupakan energi terbarukan yang sangat penting, dimana keberadaannya dapat menggantikan bahan bakar fosil baik padat maupun cair. Sebagai bahan bakar tentu perlu adanya analisis-analisis untuk mengetahui karakteristik dan kualitas biomassa sehingga kita dapat mengklasifikasikan biomassa yang potensial digunakan sebagai bahan bakar. Nilai kalori atau higher heating value (HHV) merupakan sifat terpenting dari suatu bahan bakar. Pada umumnya pengukuran nilai kalori menggunakan bomb calorimeter, akan tetapi pengukuran ini memerlukan waktu dan biaya sehingga tidak efektif jika yang dianalisis dalam jumlah banyak. Dalam makalah ini akan dibahas persamaan untuk  memprediksi nilai HHV biomassa berdasarkan analisis ultimate yang di dapatkan dari penelitian sebelumnya. Empat  prediksi nilai HHV menggunakan 15 data komposisi kimia biomassa dari penelitian sebelumnya kemudian dibandingkan berdasarkan ketepatan untuk mendapatkan prediksi terbaik. Persamaan P1 dan P4 terbaik dalam memprediksi nilai HHV berdasarkan data analisis ultimate, dimana masing-masing memprediksi terbaik di lima biomassa.  Berdasarkan sumber biomassa, persamaan P1 baik dalam memprediksi hasil perkebunan dan pertanian yang berupa serabut/serat tinggi dengan kadar karbon dan oksigen yang tinggi dan tidak memiliki sulfur. P4 baik dalam memprediksi biomassa hasil sampingan kehutanan dengan karakter tinggi kadar karbon dan oksigen, rendah hydrogen dan oksigen serta memiliki sulfur.

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[1]
M. Dirgantara, N. Kristian, and K. Karelius, “Evaluasi Prediksi Nilai Higher Heating Value (HHV) Biomassa Berdasarkan Analisis Ultimate: Evaluation of Prediction Higher Heating Value (HHV) of Biomass-Based on Ultimate Analysis”, JJMS, vol. 1, no. 2, pp. 107-113, Dec. 2019.
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