The Influence of compositions on liquified petroleum gas residue in storage

Abstract

Liquefied Petroleum Gas (LPG) has been regar ded as a cleaner fuel because it has less impact on air quality. Residue problem was still unsolved since at the early stage of LPG usage in Malaysia, therefore, it was considered as one of the national interest projects. The objective of this study is to obtain detailed understanding of LPG characteristics in cylinder during the continuous exhaustion process via modification of the existing composition design. The propane content of minimum of 60 % must be considered in the planning of the composition. The distributions of heat in cylinder showed that the sensible heat used for evaporation process is taken mainly at the internal wall. With that, the dominant heat derived for the evaporation process is through the axial direction than the radial direction. Fi nally, the study indicates that with proper selection of operating parameters the LPG residue in a cylinder could be reduced to less than 10%.