In a freeze dryer, the drying chamber have 2 shape: rectangular and cylindrical. Here are the main differences between:
Rectangular drying chamber have a higher space using rate than cylindrical drying chamber.
Rectangular drying chamber have a better temperature uniformity than cylindrical drying chamber.
Rectangular drying chamber mostly apply in pharmaceutical, biological area, where precise temperature control is needed.
Cylindrical drying chamber mostly apply in food area.
Rectangular drying chamber have a complex technical process and need longer time to remove internal stress. Cylindrical drying chamber is easy to form.
Rectangular drying chamber cost higher than cylindrical drying chamber.
