Thermodynamics of Oils of Nutritional/Cosmetic Use: Bertholletia excelsa, Cocos nucifera, and Pterodon emarginatus Vogel
JOURNAL OF BIOENGINEERING AND TECHNOLOGY APPLIED TO HEALTH(2020)
Abstract
This paper contains the results of a new experimental study about the temperature effect on density and ultrasonic velocity for Brazil nut (Bertholletia excelsa), coconut (Cocos nucifera), and sucupira (Pterodon emarginatus Vogel) oils. Isentropic compressibilities and isobaric expansibilities were computed from the experimental magnitudes as a function of temperature. Halvorsen’s model (HM), and Collision Factor Theory (CFT) were selected for the prediction of these properties due to their wide range of application and easy computation. An accurate response was observed, despite the use of several simplifications as molecular group contribution procedures for estimation of theoretic criticals points of the fatty acids and the complex nature of the studied fluids.
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Key words
oils,thermodynamics,nutritional/cosmetic use
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