Thermophysical Properties for Potato During Freezing

Thermophysical Properties for Potato During Freezing - John...

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John Goodson FDST 4060 Thermophysical Properties for Potato During Freezing MC 88 % T i 18 °C initial product temperature r u 1030 kg/m 3 density unfrozen food r f 950 kg/m 3 density of frozen food ∆H f 293.304 kJ/kg latent heat of fusion T F -2 °C initial freezing temperature of T a -30 °C temperature of freezing air a 0.03689 m cylinder diameter d c m cylinder radius L m cylinder length h 35 W/m 2 °C heat transfer coefficent k F 1.3 W/m°C thermal conductivity of frozen Tc -20 °C final desired center temperature c u 3.4 J/g°C specific heat unfrozen product c f 1.66 J/g°C specific heat frozen product P 0.25 R 0.0625 Tfm -6.61 H1 86184220 H2 299754830 T1 35.695 T2 23.39 Nbi 0.496596154 0.50184615 0.496596154
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1. 2. Small Medium Large Plank Seconds 3273.274904 3314.835889 3273.274904 Hours 0.909243029 0.920787747 0.909243029 Pham Seconds 5009.542753 5073.149244 5009.542753 Hours 1.391539654 1.409208123 1.391539654 Shape Factor 2.912763138 4.428328016 15.5594819 3. See table above for freezing times. Although both methods seemed to calculate an okay estimate of
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Thermophysical Properties for Potato During Freezing - John...

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