Full Description

The availability of recycled water may create a collateral benefit by serving as a heat sink or source for cooling and heating for commercial and industrial applications. Previously, the concept of using water sources as non-consumptive heat sinks has been utilized with a variety of water sources (e.g. potable water, groundwater, and geothermal fluids). However, risk of drinking water or environmental contamination and the unavailability of sources due to physical, environmental, legal or economic reasons have limited this use of water sources. Because recycled water is generally not utilized for potable purposes and may be already delivered to a site for consumptive uses, it avoids many of the drawbacks of other water sources. This study evaluated a water-recycling concept of using municipal reclaimed water systems for once through, non-consumptive cooling as a replacement for the conventional cooling tower systems. Use of reclaimed water as a heat sink in cooling systems can result in significant energy conservation due to elimination of cooling tower fans, and improvement in chiller performance due to lower temperatures of reclaimed water. Additional benefits of this application include pollution prevention (elimination of cooling tower chemicals) and salinity reduction (elimination of blowdown discharge). Preliminary economic evaluation of the proposed system to serve buildings of 60,000 square foot to 450,000 square foot indicated an estimated annual cost savings (amortized capital and O

Product Details

Edition: Vol. - No. Published: 01/01/2002 Number of Pages: 15File Size: 1 file , 300 KB