Abstract
Research in biodiesel production has been motivated by several reasons including consistant increase in prices of petroleum diesel, environmental advantages, security of fuel supply, and employment creation. This paper presents a review of one alternative technological method that can be used to produce this fuel. Biodiesel from used cooking oil was produced by alkali catalyzed transesterification process. Performance of internal combustion engine using this bio-diesel blended with petroleum diesel in various blending ratios was performed. The engine performance studies were conducted on a variable compression engine test rig with automatic data acquisition set up. Parameters such as brake power, torque and fuel consumption were measured at different loads for pure petroleum diesel, pure biodiesel and different combinations of the dual fuel. The test results indicate that the performance of the engine is comparable for all the fuel mixtures under review
Highlights
Botswana imports all of its petroleum products and this conjures several questions, the primary of which involves energy security and sustainable access to energy resources among the citizens of the country
The anticipated rapid development of bio-energy sector in Botswana is likely to stimulate more research activities on bio-energy, on issues such as engine performance and emission levels generated from the combustion of different blending mixtures of pure petroleum-based diesel and biodiesel fuels produced from different feed stocks
Their overall results indicate that emission of carbon monoxide, particulate matter and polycyclic aromatic hydrocarbons are reduced by using biodiesel compared to the use of pure petroleum-based diesel
Summary
Botswana imports all of its petroleum products and this conjures several questions, the primary of which involves energy security and sustainable access to energy resources among the citizens of the country. Ramadhas [3] used vegetable oils as IC engine fuels to investigate emission performance, while Rakopoulos [4] investigated emission performance of IC engine using blends of pure diesel fuels with bio-diesel produced from sunflower or cottonseed oils derived from Greek feedstock. Their overall results indicate that emission of carbon monoxide, particulate matter and polycyclic aromatic hydrocarbons are reduced by using biodiesel compared to the use of pure petroleum-based diesel
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