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Modeling the Vapor Pressure of Biodiesel Fuels

Published

Author(s)

O. Castellanos Diaz, F. Schoeggl, H.W. Yarranton, Marco Satyro, Tara M. Lovestead, Thomas J. Bruno

Abstract

The composition, vapour pressure, and heat capacity of nine biodiesel fuels from different sources were measured. The vapour pressure of the biodiesel fuels is modeled assuming an ideal liquid phase of the fatty acid methyl esters constituting the fuel. New methodologies to calculate the vapour pressure and ideal gas and liquid heat capacities of the biodiesel fuel constituents are proposed. Two alternative optimization scenarios are evaluated: 1) vapour pressure only; 2) vapour pressure constrained with liquid heat capacity. Without physical constraints, significant errors in liquid heat capacity predictions were found whereas the constrained correlation accurately fit both vapour pressure and liquid heat capacity.
Conference Dates
February 22-23, 2012
Conference Location
London
Conference Title
Energy from Waste 2012, the 8th International Energy from Waste Conference

Keywords

biodiesel fuels, fatty acid methyl ester, vapor pressure, heat capacity, modeling

Citation

Castellanos, O. , Schoeggl, F. , Yarranton, H. , Satyro, M. , Lovestead, T. and Bruno, T. (2012), Modeling the Vapor Pressure of Biodiesel Fuels, Energy from Waste 2012, the 8th International Energy from Waste Conference, London, -1, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=910403 (Accessed September 28, 2021)
Created February 22, 2012, Updated February 19, 2017