Chilled Water Storage System Design

The university of north carolina at chapel hill owns maintains and operates a district cooling system comprised of 4 production plants and a thermal energy storage system distribution system consisting of over 26 miles of underground piping and building bridge systems consisting of over 150 bridges controlling chilled water in over 140 buildings or locations.

Chilled water storage system design. Select cooling tower type speed control option efficiency approach. Select chilled water temperatures flow rate and primary pipe sizes. Select condenser water tempera tures flow rate and primary pipe sizes. The return temperature is between 58 f to 60 f.

Chw systems also may be used for removing process or other heating loads. Volume gallons 5 875d 2h. Successful chw tes design strategies basis of design chilled water is normally stored at 39 f to 42 f in the storage tanks since this temperature range is directly compatible with conventional chillers. Designing chilled water systems typically used for cooling and dehumidifying a building s air chilled water chw systems circulate it throughout a building or campus complex.

Design of chilled water storage systems stratified storage tanks estimating tank geometry tall slender tanks are preferred to optimize thermocline and minimize footprint where practical tank height should be greater than highest air vent in chilled water lines prevents drainback quick formula for tank sizing. By randy schrecengost pe cem stanley consultants austin texas september 16 2014. Select condenser water distribution. Description of chilled water system.

Temperature and make cooling tower.