Deaeration SOAPP-CT Technology Module

BACKGROUND

Proper deaeration of boiler feedwater is essential to minimizing oxygen corrosion rates and carbon dioxide attack. Corrosion is one of the largest causes of lost availability. Fifty percent of power plant maintenance costs have been estimated to be in some way attributable to corrosion, and one-half of unit forced outages have also been estimated to be attributable in some way to water/steam-side corrosion. The relative cost of corrosion is a significant incentive to reduce corrosion. This module addresses commercially viable deaeration technologies.

SCOPE

The SOAPP-CT Technology Module on Deaeration Systems includes technical reference information plus interactive conceptual design models for the following deaeration technologies:

integral deaeration

stand-alone deaeration

deaerating condenser systems

The module includes discussions on basic principles and the major components of deaeration systems. More detailed information on each technology, including unique processes, components, and supporting systems, is also included in this module.

Technology performance; equipment sizing; capital, O&M, and differential fuel costs; and construction schedules are modeled for each of the deaeration technologies as a function of the following sensitivities:

combustion turbine model selection

number of combustion turbines

cycle type

fuel selection

secondary fuel usage factor

steam pressures

steam temperatures

export high pressure steam flow rate

combustion turbine NO_x control method

combustion turbine NO_x emission limit

ambient dry bulb temperature

site elevation

unit capacity factor

Economic analyses are based on a static set of standard economic parameters when this module is used as a separate program. When this module is launched from within the SOAPP-CT WorkStation, up to 42 project-specific economic parameters are automatically imported into the module for the user's selected project. Included in these economic inputs are fuel cost, escalation rate, tax rate, capital structure, and contingencies. Default values for all module sensitivity parameters are also set from the values stored in user's selected project when this module is launched from within the SOAPP-CT WorkStation.

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	SOAPP-CT Technology Modules Deaeration
	The SOAPP-CT Technology Module on Deaeration Systems is an interactive, multimedia reference and evaluation tool for application of these systems in combustion turbine combined cycle plants. You can quickly make informed decisions by varying key sensitivity parameters and comparing the change in performance data, equipment sizes, capital costs, O&M costs, and construction schedule for each technology alternative. BACKGROUND Proper deaeration of boiler feedwater is essential to minimizing oxygen corrosion rates and carbon dioxide attack. Corrosion is one of the largest causes of lost availability. Fifty percent of power plant maintenance costs have been estimated to be in some way attributable to corrosion, and one-half of unit forced outages have also been estimated to be attributable in some way to water/steam-side corrosion. The relative cost of corrosion is a significant incentive to reduce corrosion. This module addresses commercially viable deaeration technologies.
			SCOPE The SOAPP-CT Technology Module on Deaeration Systems includes technical reference information plus interactive conceptual design models for the following deaeration technologies: integral deaeration stand-alone deaeration deaerating condenser systems The module includes discussions on basic principles and the major components of deaeration systems. More detailed information on each technology, including unique processes, components, and supporting systems, is also included in this module. Technology performance; equipment sizing; capital, O&M, and differential fuel costs; and construction schedules are modeled for each of the deaeration technologies as a function of the following sensitivities: combustion turbine model selection number of combustion turbines cycle type fuel selection secondary fuel usage factor steam pressures steam temperatures export high pressure steam flow rate combustion turbine NO_x control method combustion turbine NO_x emission limit ambient dry bulb temperature site elevation unit capacity factor Economic analyses are based on a static set of standard economic parameters when this module is used as a separate program. When this module is launched from within the SOAPP-CT WorkStation, up to 42 project-specific economic parameters are automatically imported into the module for the user's selected project. Included in these economic inputs are fuel cost, escalation rate, tax rate, capital structure, and contingencies. Default values for all module sensitivity parameters are also set from the values stored in user's selected project when this module is launched from within the SOAPP-CT WorkStation.

	A database of contemporary, representative worldwide experience is also included in this module for each technology.



	Last modified: Friday, July 19, 2002

SOAPP-CT Technology Modules

Deaeration

BACKGROUND

SCOPE