Abstract： ASME PTC 6.2:2004 pdf download.Steam Turbines in Combined Cycles. 3-1.2 Test Boundaries The test boundary is an accounting concept used to identify and define the energy streams that must be determined to calculate performance. All input an...

ASME PTC 6.2:2004 pdf download.Steam Turbines in Combined Cycles.

3-1.2 Test Boundaries

The test boundary is an accounting concept used to identify and define the energy streams that must be determined to calculate

performance. All input and output energy streams required for test calculations must be determined with reference to the point at

which they cross the boundary. Energy streams within the boundary need not be determined unless they verify base operating

conditions or unless the’ relate functionally to conditions outside the boundary. The following energy streams cross the boundary:

(a) all thermal energy inputs (steam admissions)

(b) all thermal energy outputs (steam extractions)

(C) all electrical output

The specific test boundary for a particular test must be clearly defined, Some or all of the typical streams required for common

plant cycles are shown in Figs. 3-1.2-1 and 3-1.2-2. Solid lines indicate me or all of mass flow rate and thermodynamic conditions of streams crossing the test boundary, which have to be determined to calculate the results of a steam turbine performance test

operating in combined cycle applications. The properties of streams indicated by dashed lines may be required for an energy and

mass balance, but may not have to he determined to calculate the test results.

3-1.3 Required Measurements

The required measurements are dictated by the test boundary, which is based on the contract guarantee.

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