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Notes: Theoretical and experimental study of the performance of wet/dry cooling towers in hybrid and separate configurations. A computer program is developed which predicts the thermal performance of both parallel and series path water flow rectangular hybrid towers. Example calculations are provided. Experimental data on one cooling tower fill was obtained and the computational procedure for generating the heat transfer and pressure drop characteristics from the experimental data is given. Particular attention is given to the thermodynamics of plume prediction models and the psychometrics governing the formation of visible plumes are discussed. Calculations of inlet recirculation and a method for estimating the extent of ineffective fill area is provided. 97 references. Special Report: Cooling Towers. Power Magazine . 73. Notes: Excellent comprehensive special report on cooling towers; major sections on natural and mechanical draft wet towers and on dry towers. Good systems descriptions are provided along with discussions of design, operation and maintenance issues. Some typical performance data is given but no detailed design or cost information. Although the report in 27 years old, much of the information is still relevant although there are big differences in materials, water treatment methods and the economics which dictate the cost of alternate systems. For example, the emphasis on natural draft hyperbolic towers is no longer justified and the dry system designs have progressed considerably since the writing of the report. No references. Quigley, K. and Karl Wilber. Development of Cooling Tower Performance Impacts of Utility and Process Plants. CTI Journal (1991). Notes: Presents methods for determining the performance penalties and their contribution to total evaluated costs for cooling towers. Five cases, three of which are for power plants, are presented. Results are presented in the form $/°F for estimating the cost of tower performance shortfall. 9 references. Rose, J. C., D. J. Wilson, and G. H. Cowan. Air-Cooled Heat Exchanger Performance Specification. 73. Harwell, UK, Atomic Energy Research Establishment. Notes: Detailed specifications for design, specification and location of air-cooled heat exchangers. The report covers considerations of unit location, specification of ambient design temperatures, fan and plenum configuration, fan and drive selection, thermal performance guarantees, noise level guarantees and air-flow measurement for performance tests. No references. Smith, E. C. and M. W. Larinoff. Power Plant Siting, Performance and Economics with Dry Cooling Tower Systems. Proc. of American Power Conference. 32, p. 544-578. 70. Notes: Excellent summary of performance and economics of dry cooling tower systems. A detailed methodology is set forth for accounting for all aspects of the cost of dry cooling. The optimization studies suggested that lowest total owning and operating costs with dry cooling tower systems occur with turbine exhaust temperatures in the range of 8” Hg and above. The authors recommended that turbine manufacturers could contribute to the field by offering high back pressure turbines which were not available at that time. 16 references. Annotated Bibliography of Cooling System Literature A-17PDF Image | Comparison of Alternate Cooling Technologies for California Power Plants Economic, Environmental and Other Tradeoffs
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