ASME PTC 47.4 pdf free download

ASME PTC 47.4-2015 pdf free download.Power Block of an Integrated Gasification Combined Cycle Power Plant Performance Test Codes.
The definitions in subsection 2-2 are specific to ASME l’TC 47.4. The terms and values of physical constants and conversion factors common to equipment testing and analysis are defined in ASME FTC 2.
2-2 DEFINITIONS
acceptance test: the evaluating action(s) to determine if a new or modified piece of equipment satisfactorily meets its performance criteria, permitting the purchaser to “accept” it from the supplier.
accuracy: the closeness of agreement between a measured value and the true value.
air, inlet: air crossing the test boundary and entering power plant equipment. Because of local effects, the properties of inlet air may not be the same as the properties of ambient air.
ambient temperature: static dry bulb temperature considered to be site specific and monitored at mutually agreed-upon location(s) inside the boundary.
auxiliary power: electrical power consumed by equipment in an IGCC power block plant during normal operation of the power plant. This power consumption is subtracted from the gross power output, measured at the gas and steam turbine generators’ terminals, to obtain net power block output. Depending on the contractual agreement, auxiliary power can include common supply and/or the intermittent power, such as that for water treatment, HVAC, and lighting.
bias error: see error, systematic.
calibration: the process of comparing the response of an instrument to a standard instrument over some measurement range and adjusting the instrument, if appropriate, to match the standard.
conibined cycle: two sequential thermodynamic power conversion systems operating at different temperatures. This Code applies only to combined cycles consisting of Bravton and Rankine cycles.
error: the difference between the true value and the measured value. It includes both bias (systematic) and precision (random) errors.
error, random: sometimes called precision error, random error is a statistical quantity that is expected to be normally distributed. Random error results from the fact that repeated measurements of the same quantity by the same measuring system operated by the same personnel do not yield identical values.
error, systematic: sometimes called bias crror, systematic error is the difference between the average of the total population and the true value. It is the true systematic or fixed error that characterizes every member of any set of measurements from the population, the constant component of the total error.
flue gas: the gaseous products of combustion, including excess air.
heat input: the mass flow rate of fuel(s) multiplied by the high or low heating value of the fuel(s).
heat rate (mechanical or electrical): thc fuel heat input per unit of power output, based on either the low or high heat value of the fuel, which shall be specified.
high heat value (HHV): the heat produced by combustion of a unit quantity of gaseous, liquid, or solid fuels under specified conditions, expressed in J/kg (Btu/lbm). All water vapor formed by the combustion reaction is condensed to the liquid state.
influence cfficient: the ratio of the change in a result to a unit change in a parameter.
instrument: a tool or device used to measure physical dimensions of length, thickness, width, weight, or any other value of a variable. These variables can include size, weight, pressure, temperature, fluid flow, voltage, electric current, densit viscosity, and power. Sensors are included that may not, by themselves, incorporate a display but instead transmit signals to remote computer-type devices for display, processing, or process control. Also included are items of ancillary equipment directly affecting the display of the primary instrument, e.g., an ammeter shunt, and tools or fixtures used as the basis for determining part acceptability.
losses: the energy that exits an equipment or envelope of equipment other than the energy in the output stream(s). Examples are heat lost to the atmosphere and to mechanical inefficiencies or cooling water.ASME PTC 47.4 pdf download.