In a vegetable canning factory, canned food boxes containing 800 g of product are heat treated in an autoclave. Two food engineers working at the factory are planning to increase the production capacity by changing the geometry of the canned food containers. Production capacity is proportional to the residence time in the autoclave of two designs with the same volume. Engineers' designs are given below. Which is the most appropriate recommendation?

Engineer 2: Cylinder, height / diameter ratio: 2/1

Engineer 2: Rectangular prism, aspect ratio 1x1x2

Canned vegetables

Starting temperature:20°C

Sterilization temperature:100°C

Autoclave temperature:120°C

Sterilization time:4 min

Conduction heat transfer coefficient:0.6 J/ms°C

Convective heat transfer coefficient on the surface:10000 J / m² s°C S

Specific heat capacity: 4 kJ/kg°C

Density: 980 kg/m³

Answer rating: 100% (QA)

The most appropriate recommendation would be to use the rectangular prism design with an aspec... View the full answer