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Title: Shawnee flue gas desulfurization computer model users manual

Abstract

In conjunction with the US Enviromental Protection Agency sponsored Shawnee test program, Bechtel National, Inc., and the Tennessee Valley Authority jointly developed a computer model capable of projecting preliminary design and economics for lime- and limestone-scrubbing flue gas desulfurization systems. The model is capable of projecting relative economics for spray tower, turbulent contact absorber, and venturi-spray tower scrubbing options. It may be used to project the effect on system design and economics of variations in required SO/sub 2/ removal, scrubber operating parameters (gas velocity, liquid-to-gas (L/G) ration, alkali stoichiometry, liquor hold time in slurry recirculation tanks), reheat temperature, and scrubber bypass. It may also be used to evaluate alternative waste disposal methods or additives (MgO or adipic acid) on costs for the selected process. Although the model is not intended to project the economics of an individual system to a high degree of accuracy, it allows prospective users to quickly project comparative design and costs for limestone and lime case variations on a common design and cost basis. The users manual provides a general descripton of the Shawnee FGD computer model and detailed instructions for its use. It describes and explains the user-supplied input data which are required such asmore » boiler size, coal characteristics, and SO/sub 2/ removal requirments. Output includes a material balance, equipment list, and detailed capital investment and annual revenue requirements. The users manual provides information concerning the use of the overall model as well as sample runs to serve as a guide to prospective users in identifying applications. The FORTRAN-based model is maintained by TVA, from whom copies or individual runs are available. 25 refs., 3 figs., 36 tabs.« less

Authors:
;
Publication Date:
Research Org.:
Tennessee Valley Authority, Muscle Shoals, AL (USA). Div. of Energy Demonstrations and Technology
OSTI Identifier:
5210835
Report Number(s):
TVA/OP/EDT-84/37; EPA-600/8-85-006
ON: DE86900143
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 20 FOSSIL-FUELED POWER PLANTS; 42 ENGINEERING; FLUE GAS; DESULFURIZATION; LIME-LIMESTONE WET SCRUBBING PROCESSES; COMPUTERIZED SIMULATION; MANUALS; ADDITIVES; COST; DESIGN; ECONOMICS; FLOWSHEETS; FORTRAN; MATERIAL BALANCE; REMOVAL; SULFUR DIOXIDE; CHALCOGENIDES; CHEMICAL REACTIONS; DIAGRAMS; DOCUMENT TYPES; GASEOUS WASTES; OXIDES; OXYGEN COMPOUNDS; PROGRAMMING LANGUAGES; SCRUBBING; SIMULATION; SULFUR COMPOUNDS; SULFUR OXIDES; WASTES 010800* -- Coal, Lignite, & Peat-- Waste Management; 200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions; 424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)

Citation Formats

Sudhoff, F.A., and Torstrick, R.L.. Shawnee flue gas desulfurization computer model users manual. United States: N. p., 1985. Web.
Sudhoff, F.A., & Torstrick, R.L.. Shawnee flue gas desulfurization computer model users manual. United States.
Sudhoff, F.A., and Torstrick, R.L.. 1985. "Shawnee flue gas desulfurization computer model users manual". United States. doi:.
@article{osti_5210835,
title = {Shawnee flue gas desulfurization computer model users manual},
author = {Sudhoff, F.A. and Torstrick, R.L.},
abstractNote = {In conjunction with the US Enviromental Protection Agency sponsored Shawnee test program, Bechtel National, Inc., and the Tennessee Valley Authority jointly developed a computer model capable of projecting preliminary design and economics for lime- and limestone-scrubbing flue gas desulfurization systems. The model is capable of projecting relative economics for spray tower, turbulent contact absorber, and venturi-spray tower scrubbing options. It may be used to project the effect on system design and economics of variations in required SO/sub 2/ removal, scrubber operating parameters (gas velocity, liquid-to-gas (L/G) ration, alkali stoichiometry, liquor hold time in slurry recirculation tanks), reheat temperature, and scrubber bypass. It may also be used to evaluate alternative waste disposal methods or additives (MgO or adipic acid) on costs for the selected process. Although the model is not intended to project the economics of an individual system to a high degree of accuracy, it allows prospective users to quickly project comparative design and costs for limestone and lime case variations on a common design and cost basis. The users manual provides a general descripton of the Shawnee FGD computer model and detailed instructions for its use. It describes and explains the user-supplied input data which are required such as boiler size, coal characteristics, and SO/sub 2/ removal requirments. Output includes a material balance, equipment list, and detailed capital investment and annual revenue requirements. The users manual provides information concerning the use of the overall model as well as sample runs to serve as a guide to prospective users in identifying applications. The FORTRAN-based model is maintained by TVA, from whom copies or individual runs are available. 25 refs., 3 figs., 36 tabs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1985,
month = 3
}

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  • The manual gives a general description of a computerized model for estimating design and cost of lime or limestone scrubber systems for flue gas desulfurization (FGD). It supplements PB80-123037 by extending the number of scrubber options which can be evaluated. It includes spray tower and venturi/spray-tower absorbers, forced oxidation systems, systems with absorber loop additives (MgO or adipic acid), revised design and economic premises, and other changes reflecting process improvements and variations. It describes all inputs and outputs, along with detailed procedures for using the model and all its options. The model is based on prototype scrubber data from themore » EPA/Shawnee test facility and should be useful to utility companies, as well as to architectural and engineering contractors who are involved in selecting and designing FGD facilities. As key features, the model provides estimates of capital investment and operating revenue requirements. It also provides a material balance, equipment list, and a breakdown of costs by processing areas. The primary uses of the model are to project comparative economics of lime and limestone FGD processes and to evaluate system alternatives prior to the development of a detailed design.« less
  • This manual describes a combined coal-cleaning and flue-gas desulfurization (FGD) computerized design and cost-estimate model and gives detailed procedures for using it. All inputs and outputs are described, as well as the various options available. Design and economic premises are included. The model consists of four programs: (1) one, initially developed by Battell-Columbus Laboratories, obtained from Versar, Inc.; (2) one developed by TVA; and (3,4) two developed by TVA and Bechtel National, Inc. The model produces design-performance criteria and estimates of capital investments and annual revenue requirements for a physical coal-cleaning and a limestone- or lime-FGD system, either separately ormore » as a combined emission-control system.« less
  • This report describes a lime-spray-dryer/baghouse (FORTRAN) computer model that simulates SO/sub 2/ removal and permits study of related impacts on design and economics as functions of design parameters and operating conditions for coal-fired electric-generating units. The model allows evaluation of several potential utility design and operating conditions for quick comparative costs of lime-spray drying options on a common-cost basis. Two significant limitations of the model are: the SO/sub 2/ removal is based on operating parameter ranges and results developed for low-sulfur coal applications (data on high-sulfur coal applications are lacking) and only an overall system SO/sub 2/ removal efficiency (withoutmore » separate spray-dryer and baghouse components) is calculated. The model projections using medium- (2% sulfur) and high-sulfur coal may be in error, with error increasing with increasing coal sulfur content. Means of overcoming these limitations are proposed. The users manual describes the model and instructions for its use, required input data are detailed, and sample computer runs with output are provided to guide users in identifying applications.« less
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  • This program enables the utility engineer to determine site-specific retrofit costs for six Flue Gas Desulfurization (FGD) processes: Conventional Wet Limestone, Limestone with Forced Oxidation, Lime Double Alkali, Lime Spray Drying, Wellman-Lord, and CT-121. The calculation methodology is based on EPRI Report CS-3696, ''Retrofit FGD Cost Estimating Guidelines'' published in October 1984, which applies a series of factors to the cost of a new FGD system. The factors correct for site-specific conditions, such as process variables, location, and retrofit difficulty. The following calculations are performed in the program: Total Retrofit Capital Requirement; First-Year Operating and Maintenance (O and M) cost;more » and Total Levelized Cost. The program uses the Detailed Retrofit Cost Estimate as described in EPRI-CS-3696 with one major exception. The program is equipped to handle up to 5 units of different size, with different fuel characteristics, retrofit difficulty, process variables, etc. Common shared equipment, such as reagent preparation and waste disposal, can also be included.« less