Convection based temperature assured packaging system

A packaging system for shipping a temperature sensitive payload, the packaging system comprising:

• a housing comprising a bottom panel, a top panel located above and in spaced vertical alignment with the bottom panel, side panels extending vertically between the bottom panel and the top panel, and end panels extending vertically between the bottom panel and the top panel, the housing defining a product compartment for holding a payload;
• one or more bottom cooling layers located between the bottom panel and the payload;
• one or more top cooling layers located between the payload and the top panel;
• and
• a plurality of channel members, each channel member comprising a channel member housing, the channel member housing comprising a planar inner facing panel and a planar outer facing panel connected to the inner facing panel by planar channel side panels, each channel member further comprising one or more internal panels arranged in a zig zag shape and disposed within the channel member housing, wherein
• a channel member housing is affixed to an inner facing surface of each of the side panels and the end panels inside the housing;
• each channel member housing has an open top end and an open bottom end spaced apart from the housing top panel and housing bottom panel;
• the channel member housing and the internal panels define a series of adjacent alternating inner tubes and outer tubes;
• and
• each inner tube and each outer tube has a triangular cross-sectional shape.