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Title: Maximizing peak cooling capacity in district cooling distribution systems

Abstract

Cooling capacity in District Cooling distribution systems is identified as a major factor affecting the capital and operating costs of District Cooling systems. Increasing peak cooling capacity for fixed pipeline sizes has a significant potential benefit for the economics of District Cooling. The various methods (some commercially available, and others which are developmental) for achieving increased peak delivery capacity in a District Cooling distribution system are outlined and briefly reviewed. They include: (1) lowering Chilled Water Supply (CHWS) temperatures and/or raising Chilled Water Return (CHWR) temperatures, (2) the use of Friction Reducing Additives (FRAs), (3) the use of pumpable phase-change materials (e.g. ice-water slurries or wax-water slurries), (4) the use of distributed (satellite) chiller plants, (5) the use of distributed Thermal Energy Storage (TES) units, and (6) the use of low temperature brines (such as water-glycols or proprietary fluids). Case studies are presented to illustrate and quantify the benefits for several of the currently commercial options, including higher CHW temperature differentials, distributed TES, and the use of low temperature brine in the distribution system.

Authors:
 [1];  [2];  [3]
  1. CBI Walker, Inc., Plainfield, IL (United States)
  2. CBI Technical Services Company, Plainfield, IL (United States)
  3. Trigen Energy Corp., Chicago, IL (United States)
Publication Date:
OSTI Identifier:
459047
Report Number(s):
CONF-961082-
TRN: 97:001390-0007
Resource Type:
Conference
Resource Relation:
Conference: 11. annual International District Energy Association cooling conference, Chicago, IL (United States), 2-4 Oct 1996; Other Information: PBD: 1996; Related Information: Is Part Of 11th Annual cooling conference; PB: 141 p.
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; DISTRICT COOLING; CAPACITY; OPTIMIZATION; WATER SUPPLY; HEAT TRANSFER FLUIDS

Citation Formats

Winters, P J, Hansen, D W, and Andrepont, J S. Maximizing peak cooling capacity in district cooling distribution systems. United States: N. p., 1996. Web.
Winters, P J, Hansen, D W, & Andrepont, J S. Maximizing peak cooling capacity in district cooling distribution systems. United States.
Winters, P J, Hansen, D W, and Andrepont, J S. 1996. "Maximizing peak cooling capacity in district cooling distribution systems". United States.
@article{osti_459047,
title = {Maximizing peak cooling capacity in district cooling distribution systems},
author = {Winters, P J and Hansen, D W and Andrepont, J S},
abstractNote = {Cooling capacity in District Cooling distribution systems is identified as a major factor affecting the capital and operating costs of District Cooling systems. Increasing peak cooling capacity for fixed pipeline sizes has a significant potential benefit for the economics of District Cooling. The various methods (some commercially available, and others which are developmental) for achieving increased peak delivery capacity in a District Cooling distribution system are outlined and briefly reviewed. They include: (1) lowering Chilled Water Supply (CHWS) temperatures and/or raising Chilled Water Return (CHWR) temperatures, (2) the use of Friction Reducing Additives (FRAs), (3) the use of pumpable phase-change materials (e.g. ice-water slurries or wax-water slurries), (4) the use of distributed (satellite) chiller plants, (5) the use of distributed Thermal Energy Storage (TES) units, and (6) the use of low temperature brines (such as water-glycols or proprietary fluids). Case studies are presented to illustrate and quantify the benefits for several of the currently commercial options, including higher CHW temperature differentials, distributed TES, and the use of low temperature brine in the distribution system.},
doi = {},
url = {https://www.osti.gov/biblio/459047}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Conference:
Other availability
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