Model of Mass and Heat Transfer during Vacuum Freeze-Drying for Cornea

Table 1

Parameter values during computing [14, 20, 21].

Nomenclature	Unit	Value
𝐶^∗𝑠𝑤	kg water/kg solid	0.01exp(2.3(1.36−0.036(𝑇−𝑇^0)))
𝐶2	—	0.4428
𝐶𝑝1	kg/kg·K	2.595
𝐶𝑝II	kg/kg·K	1.9678
𝐶𝑃𝑔	kg/kg·K	1.6747
𝜌1	kg/m^3	209.3
𝜌II	kg/m^3	910
𝜀	—	0.706
Δ𝐻𝑠	KJ/Kg	2834.6
Δ𝐻𝑉	KJ/Kg	2499.6
𝑃𝑤|int𝑓	Pa	133.32[exp(23.9936−2.19Δ𝐻𝑠/𝑇int𝑓)]
𝐷^0𝑤,in	kg·m/s^3	8.729×10^−7(𝑇0+𝑇int𝑓)^2.334
𝑘1𝑒	W/m·K	0.68(12.98×10^−8𝑃+39.806×10^−6)
𝑘II	W/m·K	0.146
𝑘𝑔	1/s	1.108×10^−4
𝐾𝑤	m^2/s	1.429×10^−4(𝑇0+𝑇int𝑓)^0.5