ASME PTC 47-2006 pdf free download.Integrated Gasification Combined Cycle Power Generation Plants.
This Code provides procedures for performance testing of integrated gasification combined cycle (IGCC) power plants to determine fuel gas flow and quality, thermal efficiency (heat rate), and power output at specified operating conditions.
It also provides procedures to determine the flow and quality of cleaned fuel gas produced by the IGCC plant.
(a) If electric power is the only product of the IGCC plant, this Code provides procedures for determining
(1) corrected net power
(2) corrected heat rate
(3) corrected heat input
(b) If the IGCC plant performance test also includes exported synthesis gas and/or process steam, this Code provides procedures for determining
(1) corrected net power
(2) corrected heat input
(3) export syngas pressure
(4) export syngas temperature
(5) export syngas composition
(6) export syngas flow
(7) export syngas heating value
(8) product gas contaminant content (see subsection 1-2)
(9) export steam pressure
(10) export steam temperature
(11) export steam composition
(12) export steam flow
(c) Tests may be designed to satisfy different goals. Two such tests are
(1) Specified Corrected Net Power Test
(2) Specified Disposition Test
1-2 SCOPE
This Code covers a defined range of primary fuel characteristics, but is limited to combined-cycle, powergeneration systems using gas and steam turbines.
2-1 DEFINITIONS
absorption dynamometer: device that may be connected to the output shaft of a prime mover in place of the driven load, which absorbs the output of the prime mover while transmitting the torque to a stationary member where it can be measured accurately.
accuracy: closeness of agreement between a measured value and the true value.
acid gas: contaminants in the syngas, consisting of hydrogen sulfide (H2S), carbonyl sulfide (COS), and carbon dioxide (C02). Acid gas may also refer to a concentrated stream of one or more of these components.
acid gas removal process: process that removes one or more of the acid gas components from the syngas, also referred to as the gas cleanup process. NH3, HCN, and HCI have several and varied methods of removal, such as a water wash, which goes to subsequent water cleanup before discharge. See ambient teinperaf ure acid gas removal process, cold acid gas removal process, and hot acid gas removal process.
additive: substance added to a gas, liquid, or solid stream to cause a chemical or mechanical reaction to enhance collection efficiency.
aftercooler: heat exchanger for cooling a fluid, following the last stage of compression.
agglomerating as!, gasifIer: type of fluid-bed gasifier that contains a hot zone in which the ash particles are agglomerated into small pellets for removal.
air, corrected theoretical: theoretical air adjusted for unburned carbon and additional oxygen required to complete other reactions, i.e., the sulfation reaction.
air, excess: air supplied to burn a fuel in addition to the minimum necessary for complete combustion. Excess air is expressed as a percentage of the corrected theoretical air in this Code.
air, infiltration: influx of air into the steam generator envelope.
air, theoretical: amount of air required to supply the exact amount of oxygen necessary for complete combustion of a given quantity of fuel. Theoretical air and stoichiometric air are synonymous.