Mixing chamber for air handling in an information handling system

An information handling system, comprising:

• an enclosed space for information for information technology (IT) equipment, wherein the enclosed space comprises a first region of warmer air and a second region of cooler air;
• a cooling system attached to the enclosed space;
• and
• a prefabricated infrastructure module (PIM) for mixing configured to provide air handling for the enclosed space, wherein the prefabricated infrastructure module (PIM) comprises:
• an interior intake opening configured to receive the warmer air from the first region of the enclosed space;
• an exterior intake opening configured to receive air from an exterior environment;
• a mixing aisle configured to receive air from the interior intake opening and from the exterior intake opening and further configured to allow mixing of the warmer air and air from the exterior environment;
• a recirculation opening coupled to the mixing aisle and to the cooling system and configured to output mixed air from the mixing aisle to the cooling system for recirculation through the enclosed space to cool the information handling system;
• and
• an exhaust opening coupled to the mixing aisle and configured to allow exhaust of air from the mixing aisle to the exterior environment,
• wherein the PIM comprises multiple levels, and wherein the mixing aisle traverses substantially an entire length of the PIM multiple times while passing through the multiple levels,
• wherein a first portion of the mixing aisle traverses substantially the entire length of the PIM at a first level of the multiple levels and a second portion of the mixing aisle traverses substantially the entire length of the PIM at a second lower level of the multiple levels, and wherein the first portion and the second portion of the mixing aisle are separated by a divider traversing at least a portion of the length of the PIM,
• and wherein the mixing aisle is configured to channel air from the exterior intake through the first portion of the mixing aisle and the second portion of the mixing aisle, around the divider, to the recirculation opening.

A method, comprising:

• receiving warm air from an enclosed space containing information technology (IT) equipment for information handling systems;
• receiving air from an exterior environment;
• mixing, in a mixing aisle, the warm air from the enclosed space with the air from the exterior environment;
• recirculating the mixed air through a cooling system and into the enclosed space for cooling the information technology (IT) equipment;
• exhausting air through an exhaust opening coupled to the mixing aisle and configured to allow exhaust of air from the mixing aisle to the exterior environment,
• wherein the mixing aisle traverses substantially an entire length of a multi-level prefabricated infrastructure module (PIM) multiple times while passing through the multiple levels of the PIM,
• wherein a first portion of the mixing aisle traverses substantially the entire length of the PIM at a first level of the multiple levels and a second portion of the mixing aisle traverses substantially the entire length of the PIM at a second lower level of the multiple levels, and wherein the first portion and the second portion of the mixing aisle are separated by a divider traversing at least a portion of the length of the PIM,
• and wherein the mixing aisle is configured to channel air from the exterior environment through the first portion of the mixing aisle and the second portion of the mixing aisle, around the divider, to the enclosed space.