Using Pham's method, calculate the time for freezing a meatloaf $($moisture content $=$

$85\%)$ with the following dimensions: length $=25cm,$ width $=12cm,$ height $=10cm.$

The convective heat transfer coefficient is $40\frac{W}{s}q*m-$degC. The air temperature is $-30$

degC. The initial temperature of the meatloaf is $10$degC and the required final

temperature of the frozen meatloaf is $-15$degC. The thermal conductivity of the frozen

meat is $1\mathrm{.}5\frac{W}{m}.$deg $C$ and the specific heat of unfrozen and frozen meat is $3\mathrm{.}4k\frac{J}{K}g.$deg

$C$ and $1\mathrm{.}9k\frac{J}{K}g.$degC, respectively. Assume a constant density of meatloaf is $1020$

$k\frac{g}{c}u.m.$