Thermophysical properties of carabeef
Issue Date
3-2007
Abstract
We measured the thermophysical properties of both fresh and dried carabeef conditioned to approximately 70%, 60%, 50%, 40% and 30% moisture content (MC), wet basis, by intermittent drying at 70°C, atmospheric pressure. Carabeef was found to contain 78.25% water, 1.17% fat, 1.09% ash and 19.54% protein. Apparent densities by water displacement ranged from 1025.74-1111.46 kg m -3 and followed a third-order polynomial. True densities were higher and behaved linearly with MC. Porosity development was investigated and modeled with a third-order polynomial. Specific heat was determined by the method of mixtures. Underpredicted values were within 1.61-3.02 kJ/kg-°C and were linear with MC. We devised a portable heated probe to measure thermal conductivity (TC) by the line heat source method for both parallel and perpendicular muscle fibers. TC values ranged from 0.27-0.38 W/m-°C and were not significantly affected by fiber orientation. Results correlated with MC via a third-order polynomial. Thermal diffusivity (TD) was computed using experimental values of apparent density, specific heat and TC from the heated probe method, perpendicular geometry. An average value of 1.19 × 10 -6 m2s-1 was calculated.
Source or Periodical Title
Philippine Agricultural Scientist
ISSN
317454
Volume
90
Issue
1
Page
15-21
Document Type
Article
Language
English
Subject
Carabeef, Thermal conductivity, Thermophysical properties
Recommended Citation
Floirendo P. Flores, Ernesto V. Carpio, Virgilio V. Garcia and Ponciano S. Madamba (2007).“Thermophysical Properties of Carabeef”, Philipp Agric Scientist 90 (1): 15-21.
Digital Copy
none