Cold-Wall or Convection?

Critical Considerations for Application Selection

Traditional cold-wall technology: Conventional cold-wall technology, as deployed in all ULT freezers, is designed to promote cooling via expansion of a refrigerant through a series of chamber wall capillaries. This technology focuses on making the ULT shell as cold as possible, given that the ULT’s center would eventually reach the target temperature with minimal door openings and warm loads.

Convection technology: Convection technology forces air, tempered to the target temperature, through a chamber. This technology aims to force sufficient air volume through the chamber at uniformity to ensure consistent and repeatable cooling throughout the chamber enclosure. This technology is especially relevant for bulk loading as the more uniform freeze profiling reduces compressor stress and extends asset lifecycle.

Delve into the world of cold storage as we explore the debate between 'cold wall' and 'convection' techniques, uncovering the advantages and disadvantages of each.