Energy and economic implications of combining district cooling with thermal storage

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:272715

Andrepont, J S; Kooy, R J; Winters, P J ^[1]

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1. CBI Walker, Inc., Aurora, IL (United States)

This paper presents an overview of the energy efficiency, environmental impact, and economics for combining Thermal Energy Storage (TES) technology alternatives with various chilling technology options for District Energy applications. Technical material from diverse, recent conferences and studies are cited and reviewed. Source energy efficiency and emissions (at electric utility power plants) as well as site energy efficiency (where chilling is produced and used) are examined. Economics for both capital and O&M costs are reviewed from actual District Cooling case studies. The TES technology alternatives evaluated are chilled water and ice storage (as well as non-TES base cases), including options for low temperature air production and ice slurry distribution. Chilling technology options which are considered include electric motor-driven, steam turbine-driven, and gas turbine-driven compressors, steam or gas absorption, and {open_quotes}free-cooling{close_quotes}. Additional synergies are demonstrated between TES and cogeneration, another technology which is often coupled with District Energy. Chilled Water TES is found to be particularly advantageous for District Energy applications, in terms of energy efficiency, powerplant emissions, and capital & operating economics.

• OSTI ID: 272715
• Report Number(s): CONF-9510169--
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COGENERATION
COMBINED CYCLES
DISTRICT COOLING
ECONOMIC ANALYSIS
ENERGY EFFICIENCY
THERMAL ENERGY STORAGE EQUIPMENT