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Chiller Design Model - Impact of chiller failure on the short-term temperature variation in the incubation of salmonids

Published by Northwest Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 04:07 AM | Dataset Last Updated: October 24, 2016 at 12:00 AM
In salmon recovery programs it is commonly necessary to chill incubation and early rearing temperatures to match wild development times. The most common failure mode for a chiller system is failure of the chiller or circulating pumps. Following chiller failure, the water temperature can rise from 5-7 C to 10-13 C depending on the well temperatures and ambient air temperatures. The speed and magnitude of the temperature increases depends on how the chillers are designed. The simplest design is a direct-coupled chiller with chilled gas/process water heat exchanger. Other chiller designs include both chilled glycol and water reservoirs. The addition of these reservoirs serves to reduce the maximum rate of temperature change following chiller failure. Increased deformities have been observed in direct-coupled chiller systems for sockeye salmon following chiller failures. This model can be used to size glycol and water reservoirs to control the rise in temperature following chiller failure.

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  • Model Fit for Chiller Failure with No Reservoir

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  • Model Fit for Chiller Failure with No Reservoir (R

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  • Model Fit for Chiller Failure

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  • Model Fit for Chiller Failure (RESTful)

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  • Model Fit for Chiller Failure for Pump Failure

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  • Model Fit for Chiller Failure for Pump Failure (RE

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  • GCMD Keyword Forum Page

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  • Full Metadata Record

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Complete Metadata
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accessLevel non-public
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describedByType application/octet-steam
description In salmon recovery programs it is commonly necessary to chill incubation and early rearing temperatures to match wild development times. The most common failure mode for a chiller system is failure of the chiller or circulating pumps. Following chiller failure, the water temperature can rise from 5-7 C to 10-13 C depending on the well temperatures and ambient air temperatures. The speed and magnitude of the temperature increases depends on how the chillers are designed. The simplest design is a direct-coupled chiller with chilled gas/process water heat exchanger. Other chiller designs include both chilled glycol and water reservoirs. The addition of these reservoirs serves to reduce the maximum rate of temperature change following chiller failure. Increased deformities have been observed in direct-coupled chiller systems for sockeye salmon following chiller failures. This model can be used to size glycol and water reservoirs to control the rise in temperature following chiller failure.
distribution 
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    "description": "Global Change Master Directory (GCMD). 2026. GCMD Keywords, Version 24. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords",
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identifier https://data.noaa.gov/waf/NOAA/nmfs/nwfsc/iso/xml/30879.xml
issued 2016-10-24T00:00:00.000+00:00
keyword 
[
  "DOC/NOAA/NMFS/NWFSC > Northwest Fisheries Science Center, National Marine Fisheries Service, NOAA. U.S. Department of Commerce",
  "EFS (Environmental and Fisheries Sciences) Division"
]
landingPage https://www.fisheries.noaa.gov/inport/item/30879
language 
[]
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2016-10-24T00:00:00.000+00:00
publisher 
{
  "name": "Northwest Fisheries Science Center",
  "@type": "org:Organization"
}
rights otherRestrictions, unclassified
spatial -122.5447,47.569,-122.5547,47.579
temporal 2015-01-01T00:00:00+00:00/2015-12-01T00:00:00+00:00
theme 
[
  "geospatial"
]
title Chiller Design Model - Impact of chiller failure on the short-term temperature variation in the incubation of salmonids

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