Stratified storage economically increases capacity and efficiency of campus chilled water system

William P. Bahnfleth, William S. Joyce

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The addition of stratified chilled water storage to the Cornell chilled water system has increased its capacity and efficiency and reduced its operating costs for less than the cost of a conventional chilled water plant expansion. The other new component of the storage facility - two variable speed drive thermal storage transfer pumps - saved energy by allowing adjustment to the lower system head without throttling. The first-year operating cost savings exceeded $300,000 - $235,000 due to demand shift and time of use savings, and the remainder from the impact of thermal storage on overall system performance.

Original languageEnglish (US)
Pages (from-to)46-49
Number of pages4
JournalASHRAE Journal
Volume37
Issue number3
StatePublished - Mar 1 1995

All Science Journal Classification (ASJC) codes

  • Building and Construction
  • Mechanical Engineering

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