CFD MODELING ANALYSIS OF MECHANICAL DRAFT COOLING TOWER Metadata

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Title

  • Main Title CFD MODELING ANALYSIS OF MECHANICAL DRAFT COOLING TOWER

Creator

  • Author: Lee, S
    Creator Type: Personal
  • Author: Alfred Garrett, A
    Creator Type: Personal
  • Author: James02 Bollinger, J
    Creator Type: Personal
  • Author: Larry Koffman, L
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Savannah River Site (S.C.)
    Place of Publication: [Aiken, South Carolina]
    Additional Info: SRS

Date

  • Creation: 2008-03-03

Language

  • English

Description

  • Content Description: Industrial processes use mechanical draft cooling towers (MDCT's) to dissipate waste heat by transferring heat from water to air via evaporative cooling, which causes air humidification. The Savannah River Site (SRS) has a MDCT consisting of four independent compartments called cells. Each cell has its own fan to help maximize heat transfer between ambient air and circulated water. The primary objective of the work is to conduct a parametric study for cooling tower performance under different fan speeds and ambient air conditions. The Savannah River National Laboratory (SRNL) developed a computational fluid dynamics (CFD) model to achieve the objective. The model uses three-dimensional steady-state momentum, continuity equations, air-vapor species balance equation, and two-equation turbulence as the basic governing equations. It was assumed that vapor phase is always transported by the continuous air phase with no slip velocity. In this case, water droplet component was considered as discrete phase for the interfacial heat and mass transfer via Lagrangian approach. Thus, the air-vapor mixture model with discrete water droplet phase is used for the analysis. A series of the modeling calculations was performed to investigate the impact of ambient and operating conditions on the thermal performance of the cooling tower when fans were operating and when they were turned off. The model was benchmarked against the literature data and the SRS test results for key parameters such as air temperature and humidity at the tower exit and water temperature for given ambient conditions. Detailed results will be presented here.

Subject

  • Keyword: Blowers
  • Keyword: Fluid Mechanics
  • Keyword: Cooling Towers
  • Keyword: Forced Convection
  • Keyword: Heat Transfer
  • STI Subject Categories: 32 Energy Conservation, Consumption, And Utilization
  • Keyword: Parametric Analysis
  • Keyword: Flow Models
  • Keyword: Evaporative Cooling
  • Keyword: Performance

Source

  • Conference: 2008 ASME Heat Transfer Conference

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: WSRC-STI-2008-00123
  • Grant Number: DE-AC09-96SR18500
  • Office of Scientific & Technical Information Report Number: 927156
  • Archival Resource Key: ark:/67531/metadc894512

Note

  • Display Note: available