CONDENSATION-EVAPORATION MODELING OF DRIFT FROM A MECHANICAL COOLING TOWER

Conference · Tue May 23 04:00:00 EDT 2023

DOI:https://doi.org/10.63044/s23han86· OSTI ID:1991094

Han, Kai ^[1]; Mistreanu, Adrian M. ^[1]; Sobecki, Christopher A. ^[1]; d'Entremont, Brian P. ^[1]

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1. Savannah River National Laboratory (SRNL), Aiken, SC (United States)

Numerical studyfor investigatingthe phase change behavior of a drift from a mechanical draft cooling tower is presented. A k-ε turbulence model, discrete phase model, species transport equations, and a heat-mass exchange model are solved simultaneouslyto capture the heat and mass transfer effects of a drift condensing and evaporatingeffects. The simulation result is compared to an available real scale test data and its limitation is also discussed. A parametric study is carried out by varying the ambient dry bulb temperature, ambient relative humidity, wind speed, liquid droplet diameter, and the drift amount. It is found that by combining the evaporation and condensation models, a drift phase change phenomena is accurately depicted. A parametric study reveals that wind speed impact is affected by the ambient temperature and the number of liquid droplets and their size play a critical role in the phase change phen

• Research Organization: Savannah River National Laboratory (SRNL), Aiken, SC (United States)
• Sponsoring Organization: USDOE Office of Environmental Management (EM)
• DOE Contract Number: 89303321CEM000080
• OSTI ID: 1991094
• Report Number(s): SRNL-STI-2022-00458
• Country of Publication: United States
• Language: English