Achieving high chilled-water Delta Ts

This article recommends practical methods for achieving high chilled-water temperature differentials in variable flow hydronic cooling systems. Once high chilled-water Delta Ts are realized, more Btu's of cooling will be accomplished per gallon of chilled-water distributed. Pressure losses and pumping energy will decline considerably in existing hydronic cooling systems and smaller pumps and piping may be installed in new hydronic cooling systems. Also, water chiller capacities will no longer be limited by maximum evaporator flow rates and chilled-water storage tanks will store many more ton-hours cooling. This fundamental approach provides significant, enduring improvements in the performance of variable-flow hydronic cooling systems