Analysis of vegetable oil mixture combustion in a conventional 50 KW thermal energy installation

Abstract This work presents the combustion results of a vegetable oils blend in a low-pressure auxiliary air fluid pulverisation burner (o emulsion burner). This blend was prepared from soy and sunflower refined vegetable oils (54.4%) and sunflower and rapeseed crude vegetable oils (45.4%). The influence of varying the fuel flow rate, the secondary airflow rate as well as the fuel preheating temperature on combustion, performance and pollutant emissions was studied. Additionally, a comparison between the combustion results obtained from this mixture of vegetable oils and those previously obtained in combustion for pure vegetable oils was also carried out. For all of the conditions tested, the vegetable oil mixture combustion performance exceeded 77% and NOx emissions were extremely low (