IN-91-20-2 -- Case study of a Large, Naturally Stratified, Chilled-Water Thermal Energy Storage System PDF

Describes a case study of a 24,500 ton-hour (310,199 MJ) thermal energy storage system with a 2.681 million gallon (10,161 m³) naturally stratified, cylindrical, chilled water storage reservoir serving a 1.142 million ft² (106,092 m²) electronics manufacturing facility in Dallas, Texas. States this retrofit project was completed in ten and a half months at a total cost of less than 70,00 dollars per ton-hour (5.53 dollars per MJ) and has performed well since start up in August 1990, enabling the facility to reduce its peak electrical demand by 2.9 MW(e). Discusses several of its design features and operating methods in detail for the benefit of engineers interested in chilled-water thermal energy storage.

KEYWORDS: Case studies, chilled water supply, energy storage, USA, modernising, costs, operations