Document: NUREG-1555
Document ID: 16efba2d-597d-4734-84e7-046c257d75c3
Document Type: esrp
Title: HEAT-DISCHARGE SYSTEM
Source: NUREG-1555
Source URL: https://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1555/initial/
Revision Date: 2007-10
Chapter: 5
Section ID: 5.3.3
CFR Part: 
CFR Title: 

Content:
cts on the terrestrial ecosystem and socioeconomic concerns. ` ESRP 5.10. Provide a summary of the recommended measures and controls required to limit adverse impacts of operating the heat dissipation system. ` ESRPs 9.4.1 and 9.4.2. Provide a list of adverse heat dissipation or cooling water system impacts that could be avoided through alternative heat dissipation system design or operational procedures, and assist in identifying appropriate alternatives. ` ESRP 10.1. Provide a summary of any unavoidable adverse impacts resulting from operation of the heat dissipation system, including a description of the significance of the losses. Data and Information Needs The type of data and information needed will be affected by site- and station-specific factors, and the degree of detail should be modified according to the anticipated magnitude of the potential impacts. The following cooling tower data or information should be obtained: ` physical characteristics (from the environmental report [ER]) including - principal physical dimensions, including exit diameter - elevation of all tower bases above sea level - height of the tower - number of fans (for mechanical draft) and, if reversible, schedule of operation in cold weather. October 1999 5.3.3.1-3 NUREG-1555 ` estimated performance characteristics (for design and off-design) (from the ER) including - air and water mass flow rates at tower emission point - efflux speed - temperature of water entering and leaving the tower - temperature of air leaving the tower - amount of heat released - performance curves (supplied by the tower vendor). ` estimated drift characteristics (from the ER) including - drift rate for both design and off-design weather conditions, at full load - expected size distribution of drift droplets (from the general literature) - concentration of dissolved and suspended solids in tower basin. ` onsite meteorological data (from ESRP 2.7) ` predicted chemical interaction of the cooling tower plume(s)