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Performances assessment of biofuel on small-scale turbojet engine

Performances assessment of biofuel on small-scale turbojet engine / Muhammad Hafizul Hirmi Mohd Amin
Penggunaan bahan bakar alternatif merupakan salah satu kunci penyelesaian menangani kos bahan bakar yang meningkat dan masalah pencemaran disebabkan oleh penggunaan bahan bakar yang berunsur petroleum. Memandangkan penggunaan enjin turbojet berskala besar amat kompleks dan menelan kos perbelanjaan yang besar dalam menjalankan kajian terhadap ciri prestasi enjin itu, maka penggunaan enjin turbojet berskala kecil telah menarik minat penyelidik daripada pelbagai bidang dalam melakukan penyelidikan. Kajian ini menilai hasil data yang diperoleh daripada eksperimen yang dijalankan menggunakan enjin turbojet ET796 dan simulasi menggunakan perisian Gas Turbine Simulation Program (GSP) berkaitan ciri prestasi seperti tujahan, penggunaan bahan bakar spesifik dan suhu pada setiap komponen. Sepanjang kajian ini, tiga sampel bahan bakar yang berbeza telah digunakan iaitu bahan bakar jet A-1 konvensional, campuran 50% hydro-processed esters dan fatty acids (HEFA) (B50) serta bahan bakar rapi (HEFA) (B100) daripada minyak masak terpakai. Daripada hasil yang diperoleh, enjin turbojet eksperimental yang menggunakan bahan bakar biofuel B50 dan B100 telah menunjukkan peningkatan prestasi berbanding dengan bahan bakar konvensional jet A-1. Hasil data juga menunjukkan bahawa bahan bakar alternatif lebih efisien pada kelajuan tinggi, sementara bahan bakar jet A-1 lebih efisien pada kelajuan rendah. _______________________________________________________________________________________________________ Alternative aviation fuel to petroleum-based kerosene is now one of the key solutions for the aviation industry to address concerns about fuel costs and environmental pollution. Since the use of a full-scale turbojet engine to evaluate its performance and emission characteristics is complicated and costly, the use of a smaller-scale turbojet engine has attracted a great deal of interest from researchers in different fields. The present study evaluates the results of the experimental data from the ET 796 turbojet engine and simulation using the Gas Turbine Simulation Program (GSP) performance characteristics such as thrust, specific fuel consumption and component temperature. Throughout this study, three different fuel samples have been used: conventional jet A-1 fuel, a blend of 50% hydro-processed esters and fatty acids (HEFA) fuel (B50) and neat HEFA fuel (B100) derived from used cooking oil. From the result obtained, the experimental turbojet engine fed with B50 and B100 biofuel have an increased to its performance compared to the conventional jet A-1 fuel. The results also indicated that biofuel is more efficient at high speeds, while A-1 jet fuel is more efficient at lower speeds.
Contributor(s):
Muhammad Hafizul Hirmi Mohd Amin - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007945
Language:
English
Subject Keywords:
aviation; fuel; kerosene
First presented to the public:
8/1/2020
Original Publication Date:
10/7/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Aerospace Engineering
Citation:
Extents:
Number of Pages - 87
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-10-07 17:32:13.807
Submitter:
Mohd Jasnizam Mohd Salleh

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