Seasonal Free Cooling for University Data Center

The design and implementation of a free cooling system to chill water for the UI campus, during the winter months, is the main goal of this project. By considering system economics, environmental impact, and  overall optimization, among other factors, the designed system will provide a efficient, cost-saving method of cooling water through the use of cold ambient air.

Background
Free cooling, also known as enterprise cooling, involves utilizing relatively low temperature ambient air to cool a working fluid within a system. Conversely, a conventional method for completing the same task would be to use refrigeration cycle chiller. However, free cooling is enticing for a few reasons. First, air is a working fluid within the system that does not have an associated monetary cost, hence the name "free" cooling. Secondly, operational costs for a free cooling system are generally lower, due to the fact that pumps and fans are the only main components that must be powered. In a conventional system, compressors and cooling towers, along with pumps, produce a much higher power demand while operating. Finally, a free cooling system can be a completely enclosed system, protecting it from the environment and eliminating the need for make-up water and continuous chemical treatment of the system.

Deliverables
For this project, the final product will be a complete design and analysis, with supporting calculations, of a free cooling system to chill water for the UI campus during the winter season. Once our design has been approved, the University will purchase and install the components outlined in our design to create a full scale, operational free cooling system.