Performance and emission opacity of canola and soybean biodiesel fuel in a diesel engine

Abstract

Biodiesel is a renewable fuel known to produce more environmentally friendly emissions compared to diesel fuel. However, at times it has been reported as exhibiting a much lower engine performance compared to standard diesel fuel. Biodiesel fuel has the potential to achieve similar performance as compared to diesel fuel when the optimum percentage of biodiesel blend is used. In this study, an experiment was conducted to determine the performance and opacity of emissions collected from soybean biodiesel and canola biodiesel fuel by using a YANMAR TF90 single cylinder direct injection diesel engine. The objective of this study is to determine the best percentage of dieselsoybean and diesel-canola fuel mixture that would result in the best performance of an engine. The experiment investigated the brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), brake power (BP), and torque generated by the engine using different biodiesel fuel percentages at varying engine speeds. Additionally, the emission opacity was investigated to identify the most favourable fuel percentage for optimised biodiesel compared to the quality obtained from soybean and canola soybean biodiesel. The results from the experiment clearly show that the engine using biodiesel fuel has a slightly lower performance as compared to the engine that only used diesel fuel for all percentages used. However, at low speeds, a BTE of 40% canola biodiesel was higher compared to diesel and soybean biodiesel. The BSFC for all biodiesel fuel was found to be slightly higher than diesel, except for BC40, which was greater for BSFC compared to other blends used at much lower engine speeds. Engine emission opacity of biodiesel was recorded to be less than diesel fuel at all engine speeds, but slightly higher for BC5, BS5 and BS20 due to the insufficient air intake to the engine. Engine performance and emission opacity of all biodiesel fuels were found to be similar to diesel fuel. From the results relating to engine performance and emission, canola biodiesel was found to be an excellent biodiesel product to be used in a diesel engine since it had a higher BTE, lower BSFC and a lower opacity which was greater than those of soybean biodiesel blends. Therefore, biodiesel can be blended in a diesel engine at a higher percentage while maintaining engine performance and reducing engine emission.

Optimization of Multiple Injection Strategy in Modified Common Rail Direct Injection Diesel Engine Powered with Palm Oil Methyl Ester

“…Amongst all, diesel fuel showed higher BTE as compared to POME fuel due to lower cetane number, higher FFA present in POME fuel. The most of biodiesel fuels have potential to reach performance of diesel fuel when the moderate percentage of biodiesel blend is used [55]. The results are obtained for BTE with POME fuel operated 40-20-40 MIS combination are 29.5, 30, 30.5, 31, 30.75% for 600, 700, 800, 900, 1000 bar respectively.…”

Analisis Campuran Bahan Bakar Dan Bioetanol Tongkol Jagung Terhadap Performa Kerja Mesin

“…[3], [25] Mesin diesel sering digunakan oleh sarana angkutan yaitu salah satunya digunakan pada kapal yang mempunyai kapasitas mesin besar dan tenaga yang besar. [1] Hal tersebut dikarenakan mesin diesel cocok digunakan jarak jauh atau lebih tahan panas dibanding mesin jenis lain. [1], [15], [17] Kapasitas mesin diesel sangat besar dan tenaganya juga besar, kontruksi mesin diesel juga rata-rata berkapasitas besar.…”

“…[1] Hal tersebut dikarenakan mesin diesel cocok digunakan jarak jauh atau lebih tahan panas dibanding mesin jenis lain. [1], [15], [17] Kapasitas mesin diesel sangat besar dan tenaganya juga besar, kontruksi mesin diesel juga rata-rata berkapasitas besar. [10] Mesin diesel ini ditemukan pada tahun 1892 oleh Rudolf Diesel, yang menerima paten pada 23 Februari 1893.…”

“…[11], [17] Berdasarkan penelitian di atas dapat disimpulkan bahwa penggunaan bahan bakar campuran solar dan biodiesel serta pertalite dan bioethanol, dengan persentase tertentu sangat berpengaruh terhadap kinerja mesin dan emisi yang dihasilkan. [1], [5], [9], [20]…”

Performance and Exhaust Gas Emission of Biodiesel Fuel with Palm Oil Based Additive in Direct Injection Compression Ignition Engine

“…As such, by having a very high density and viscosity level, the biodiesel fuel has a tendency to reduce engine performance, since the high viscosity would result in a poor flow of fuel into the combustion chamber and in turn leads to a slow combustion process. However, although the complex structure with high carbon contents in the biodiesel fuel is likely to heighten the engine's incomplete combustion, it also contains a high oxygen content that can aid in the engine's complete combustion [13] and results in lesser carbon emission. While biodiesel fuel has been touted as a much cleaner alternative to conventional diesel fuel, a high NOx emission however, had been detected as a result of the higher combustion temperatures from the biodiesel's higher oxygen content.…”