A disruption of electrical power causing the lack of cooling to temperature sensitive equipment (for example, internet data centers) can cause failure in a matter of several minutes or less. The availability of appropriately designed and built emergency cooling systems would prevent data loss and failure of the equipment. The objective of this research is to develop useful and practical design methodologies for the design of emergency cooling systems. To accomplish this, at least ten candidate facility types will be selected and examined concerning their cooling load profile and design variables. Three of these, one a data center, will be examined in much greater detail resulting in at least four conceptual emergency cooling designs likely to include chilled water and ice-storage systems among others. From these designs and their associated cost analyses, a design methodology likely consisting of a general approach to cooling system type selection, component sizing, economic analysis, and supporting charts and tables will be the result.