Troubleshooting: Chilled water distribution problems at the NASA Johnson Space Center

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Heating, Piping and Air Conditioning

OSTI ID:31922

Kirsner, W ^[1]

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1. Kirsner, Pullin and Associates, Marietta, GA (United States)

Various modifications over the years had skirted a problem with low chilled water {Delta}T without solving it. This article examines how discovering the cause could help improve the system`s present level of efficiency. The NASA Johnson Space Center had long had a problem with chilled water (CHW) distribution to the 40 buildings served by the Central CHW plant. originally designed in 1964 for a 16 F temperature drop across the central plant chillers, the chilled water system could only attain a 7 F {Delta}T on average and a 10 F {Delta}T at best. This meant not only that twice as much CHW as originally intended had to be pumped around the 5 mile campus loop to satisfy the cooling load but also that the seven 2,000-ton chillers in the central plant couldn`t be loaded much beyond half of their capacity.

• OSTI ID: 31922
• Journal Information: Heating, Piping and Air Conditioning, Journal Name: Heating, Piping and Air Conditioning Journal Issue: 2 Vol. 67; ISSN HPAOAM; ISSN 0017-940X
• Country of Publication: United States
• Language: English

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