Designing for 42 deg F chilled water supply temperature: does it save energy?

Author(s) : KIRSNER W.

Type of article: Article

Summary

If total head is well above 300 kilopascals, there will be energy savings at full load for designing for lower chilled water supply temperatures at expanded temperature differences. However, whether or not this energy advantage is sustained at part loads will depend on the response of the particular pumping system. Therefore, if the pumping head is below 300 kilopascals, it is probably advantageous from an energy standpoint to maximize chiller efficiency by choosing a high chilled water supply temperature such as 7.22 rather than 5.56 deg C.

Details

  • Original title: Designing for 42 deg F chilled water supply temperature: does it save energy?
  • Record ID : 1999-0471
  • Languages: English
  • Source: ASHRAE Journal - vol. 40 - n. 1
  • Publication date: 1998/01
  • Document available for consultation in the library of the IIR headquarters only.

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