Maximizing Delta T: Improving cooling system performance at the coils

摘要

District energy provides numerous benefits to customers compared to individual building heating and cooling systems-from reduced capital expenses and energy consumption to improved building operation and reliability. Unfortunately, these system benefits can be dramatically diminished if heating or cooling coil performance in customer buildings is not optimized. A very common problem in district cooling systems is low chilled-water temperature differential, or Delta T, measured across the plant, distribution, customer buildings and/or cooling coils. Low Delta T is a significant issue that continues to be the Achilles' heel of district cooling.