Efisiensi Termal Boiler Menggunakan Bahan Bakar Campuran Batubara Lignit dan Cangkang Biji Jambu Mete

Novarini Novarini, Sukadi Sukadi

Abstract


Abstrak

Cadangan bahan bakar batubara saat ini menurun, sehingga perlu dilakukan upaya untuk meminimalkan penggunaan bahan bakar ini. Provinsi Sulawesi Tenggara adalah produsen mete terbesar di Indonesia di mana kulit kacang mete dapat digunakan sebagai alternatif campuran bahan bakar batubara. Penelitian ini bertujuan untuk memperoleh nilai efisiensi termal maksimum pada pembakaran batubara di boiler dengan kapasitas 10,5 ton/jam dengan memvariasikan campuran bahan bakar batubara lignit dan kulit kacang mete dengan komposisi campuran 60%: 40%, 50%: 50% , 40%: 60%, 30%: 70%, 20%: 80%, dan 10%: 90%. Data yang diambil adalah hasil analisis proksimat dan pamungkas kulit lignit dan kacang mete serta data teknis operasi boiler tipe firetube. Hasil penelitian menunjukkan bahwa efisiensi termal maksimum 88,75% adalah dengan menggunakan 10% campuran batubara lignit dan 90% kulit kacang mete.

 

Abstract

Coal fuel reserves are currently decreasing, so efforts need to be made to minimize the use of these fuels. Southeast Sulawesi Province is the largest cashew producer in Indonesia where the cashew nut shell can be used as an alternative to coal fuel mixture. This research aims to obtain maximum thermal efficiency value  of a coal fires steam boiler with a capacity of 10.5 tons/hour by varying the mixture of lignite coal fuel and cashew nut shell with mixed composition of 60% : 40%, 50% : 50%, 40% : 60%, 30% : 70%, 20 % : 80%, and 10% : 90%. The data taken are the result of proximate and ultimate analysis of lignite and cashew nut shells and also technical operation data of steam pipe boiler. The results showed that the maximum thermal efficiency 88.75% was by using 10% mixture of lignite coal and 90% cashew nutshell.


Keywords


lignite coal, cashew nut shells, fire tube steam boiler, thermal efficiency

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References


Akhdiyatul, Radwitya, E., & Chandra, Y. (2018). Analisis Teknis dan Ekonomis Dalam Penggunaan Bahan Bakar Biomassa Di Pusat Listrik Tenaga Uap Studi Kasus di PLTU PT . Suka Jaya Makmur. ELKHA: Jurnal Teknik Elektro, 10(2), 49–55.

Baldi, S., Quang, T. Le, Holub, O., & Endel, P. (2017). Real-time monitoring energy efficiency and performance degradation of condensing boilers. Energy Conversion and Management, 136, 329–339. https://doi.org/10.1016/j.enconman.2017.01.016

Barma, M. C., Saidur, R., Rahman, S. M. A., Allouhi, A., Akash, B. A., & Sait, S. M. (2017). A review on boilers energy use, energy savings, and emissions reductions. Renewable and Sustainable Energy Reviews, 79(March 2016), 970–983. https://doi.org/10.1016/j.rser.2017.05.187

Gao, X., Qi, L., Lyu, W., Chen, T., & Huang, D. (2017). RIMER and SA based thermal efficiency optimization for fired heaters. Fuel, 205, 272–285. https://doi.org/10.1016/j.fuel.2017.05.067

Irawan, B. (2017). Perhitungan Energi Pembakaran Bahan Bakar di Dalam Silinder Mesin Bensin Perhitungan Energi Pembakaran Bahan Bakar di Dalam Silinder Mesin Bensin. In SNTT 2017 (pp. 13–16). Malang: Politeknik Negeri Malang.

Kitto, J. B., & Stultz, S. C. (2015). Steam (42nd ed.). Ohio USA: The Babcock and Wilcox Company Barbeton.

Novarini, Siahaya, Y., & Leonard, J. (2014). Novarini. In Penggunaan Batubara Lignit Mallawa Dan Pencampuran Dengan Cangkang Biji Jambu Mete Di PT. Indofood CBP, Tbk Cabang Makassar (pp. 78–61). Makasar: Prosiding Seminar Nasional Rekayasa Material, Sistem Manufaktru dan Energi.

Patisarana, G., & Hazwi, M. (2012). Optimalisasi efisiensi termis boiler menggunakan serabut dan cangkang sawit sebagai bahan bakar. Dinamis, I(11), 22–26.

Patro, B. (2016). Efficiency stud ies of combination tube boilers. Alexandria Engineering Journal, 55(1), 193–202. https://doi.org/10.1016/j.aej.2015.12.007

Su, Y., Chaudri, K. S., Tian, W., Su, G., & Qiu, S. (2014). Optimization study for thermal efficiency of supercritical water reactor nuclear power plant. Annals of Nuclear Energy, 63, 541–547. https://doi.org/10.1016/j.anucene.2013.08.023




DOI: https://doi.org/10.18196/st.22128

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