Experimental Investigation of Particulate Matter Emissions from a Single Cylinder Diesel Engine Fuelled With Waste Cooking Oil Biodiesel

摘要

Advanced biodiesel derived from waste cooking oil (WCO) is a promising diesel alternative because of its renewability and its less negative impact on food supply as compared to traditional biodiesels. WCO biodiesel can be catalytically produced from waste cooking oil and alcohol through the process of trans esterification and esterification. It has already been proven that WCO biodiesel can be used in conventional compression-ignition engines with some minor modifications. Even though it is expected that WCO biodiesel will reduce particulate matter (PM) emissions due to its oxygen content, more studies are needed to quantitatively demonstrate its low PM emissions, especially regarding its lung-deposited surface area (LDSA) concentration. In this study, the engine-out solid particle emissions from WCO biodiesel were investigated in an agricultural single-cylinder diesel engine operated at engine speeds of 1200, 1400, 1600 and 1800 rpm, and at engine loads of 10 to 95 Nm. Solid particle related parameters, including particle number concentration, mass concentration, mean diameter, and LDSA concentration, were quantitatively analysed by a portable emission measurement system (NanoMet3). Conventional fossil-based diesel was also tested, the results of which were used as a benchmark.