ASME 3977-1:2000 pdf download

12-15-2022 comment

ASME 3977-1:2000 pdf download GAS TURBINES: PROCUREMENT Part 1: General lntroduction and Definitions
1 SCOPE
This Part of ASME 3977 groups together the termsand definitions given in ISO 11086 that are relevantto the procurement of gas turbine systems, and definesadditional terms.
2 DEFINITIONS
For the purposes of all parts of ASME 3977, thefollowing definitions apply.
2.1
gas furbine: machine which converts thermal energyinto mechanical work; it consists of one or severalrotating compressors, a thermal device(s) which heatsthe working fluid, one or several turbines, a controlsystem, and essential auxiliary equipment. Any heatexchangers (excluding waste exhaust heat recovery exchangers) in the main working fluid circuit are considered to be part of the gas turbine.
NOTE: Examples of gas turbine systems are shown in Figs. lthrough 9.
2.2
gas furbine power plant: gas turbine engine and allessential equipment necessary for the production ofpower in a useful form (e.g, electrical, mechanical, orthermal).[ISO 11086)
2.3
open cycle: thermodynamic cycle in which the work-ing fluid enters the gas turbine from the atmosphereand is discharged into the atmosphere. [ISO 11086]
2.4
closed cycle: thermodynamic cycle having a recirculating working fluid independent of the atmosphere. [ISO110861
2.5
semniclosed cycle: thermodynamic cycle utilizing com-bustion in a working fluid that is partially recirculatedand partially exchanged with atmospheric air. [ISO11086)
2.6
simple cycle: thermodynamic cycle consisting only ofsuccessive compression, combustion, and expansion.ISO 11086]
2,7
regenerafive cycle. thermodynamic cycle employingexhaust heat recovery, consisting of successive compres-sion, regenerative heating, combustion,expansion, andregenerative cooling (heat transfer from the exhaust tothe compressor discharge fluid) of the working fluidISO 11086]
28
intercooled cycle: thermodynamic cycle employingcooling of the working fluid between stages of succes-Sivecompression.[ISO 11086]
2.9
reheat cycle: thermodynamic cycle employing the ad-dition of thermal energy to the working fluid betweenstages of expansion.
2,10
combined cycle: thermodynamic cycle employing thecombination of a gas turbine cycle with a steam orother fuid Rankine cycle.
2.11
single-shaft gas furbine: gas turbine in which thecompressor and turbine rotors are mechanically coupledand the power output is taken either directly or throughgearing.
2.12
mulrishaft gas furbine: gas turbine combination including at least two turbines working on independent shafts
NOTE: The termm includes cases referred to as compound and splitshaft gas turbines.
2.13
bled gas furbine: gas turbine which has, for externaluse, extraction of compressed air between comprcssorstages and/or at the discharge of the compressor, orextraction of hot gas at the inlet of the turbine and/or between turbine stages.
2.14
gas generator: assembly of gas turbine componentsthat produces heated pressurized gas to a process orto a power turbine.
NOTE: It consists of one or more rotaing compressor(s), thermnaldevice(s) associated with the working fluid, and one or more compres.sor-driving turbinc(s). a control system and essential auxiliary equipment.(ISO 11086)
2.15
compressor: that component of a gas turbine whichincreases the pressure of the working fluid.
2.16
furbine: term which when used alone refers to theturbineaction only. it is that component of the gasturbine which produces power from expansion of theworking fuid.
2.17
power turbine: turbine having a separate shaft fromwhich output is derived.

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