Estimation of density of biodiesel

Conference proceedings article

Authors/Editors

KAOKANYA SUDAPRASERT

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Publication Details

Author list: Phankosol S., Sudaprasert K., Lilitchan S., Aryusuk K., Krisnangkura K.

Publisher: American Chemical Society

Publication year: 2014

Volume number: 28

Issue number: 7

Start page: 4633

End page: 4641

Number of pages: 9

ISSN: 0887-0624

eISSN: 1520-5029

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84904571524&doi=10.1021%2fef501031z&partnerID=40&md5=cd76aeaf7f4e472f901cba6637e240ad

Languages: English-Great Britain (EN-GB)

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Abstract

Density of biodiesel is an important physical property of liquid fuel and biodiesel. A slight change in density can affect engine output power. In this work, density of a saturated, unsaturated fatty acid methyl ester or a biodiesel can be estimated from either (1) its number of carbon atoms (of fatty acid, z) and number of double bonds (nd): ln ρ = -0.435 - 0.0025z + 85.98/T + 0.792z/T + 4.0 nd/T or (2) its saponification number (SN) and iodine value (IV): ln ρ = -0.427 - 10/SN + 83.38/T + 3168.95/(T × SN) + 11 IV/(T × SN), where T is absolute temperature. The predicted densities at different temperatures from both equations agree well with the reported literature values. © 2014 American Chemical Society.

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