Comparison of Performance & Emission of Diesel Engine Fuelled with Diesel & Biodiesel

Kirthijeyarajah, Shivanan (2013). Comparison of Performance & Emission of Diesel Engine Fuelled with Diesel & Biodiesel Honours Thesis, School of Engineering, The University of Queensland.

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Author Kirthijeyarajah, Shivanan
Thesis Title Comparison of Performance & Emission of Diesel Engine Fuelled with Diesel & Biodiesel
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2013
Thesis type Honours Thesis
Supervisor Bo Feng
Total pages 66
Language eng
Subjects 0913 Mechanical Engineering
Formatted abstract
This literature review study presents various experimental results on the performance and emissions of a diesel engine fuelled with diesel and biodiesel. The performance and emissions were compared by varying the design parameters of the engines such as the engine speed, engine load, injection timing and Exhaust Gas Recirculation (EGR) concentration. The engine speed and load were first analysed and it was found that biodiesel engine produced satisfactory engine performance and lower emission levels except for Nitric Oxide (NOx) when compared to diesel engine. This thesis then further investigated the effect on the engine performance and emission when EGR system was implemented and injection timing was varied to reduce the NOx emission levels. EGR and injection timing were chosen because many literatures used these parameters to investigate the NOx emission reduction in engines. This study was aimed to determine the impact of varying the engine load and speed on the engine’s performance and emission levels as well as mitigating NOx emissions to acceptable levels.

Many studies are currently being carried out on the usage of biodiesel fuel in the production of diesel engines as well as its effect on the emissions and performance. The objective of this study is to determine the feasibility of replacing diesel with biodiesel in a diesel engine. The feasibility is looked in terms of the performance of the engine such as the brake thermal efficiency (BTE), brake specific fuel consumption (BSFC) and power output whereas the emissions are in terms of the levels of nitric oxides (NOx), carbon monoxide (CO), hydrocarbon (HC), and smoke released from the engines.

Keyword Diesel Engine

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
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Created: Fri, 04 Dec 2015, 13:54:24 EST by Asma Asrar Qureshi on behalf of Scholarly Communication and Digitisation Service