Air-Cooled Steam Condensers Performance Test Codes A N A M E R I C A N N A T I O N A L S T A N D A R D ASME PTC ASME. ASMEPTCRAir-Cooled Steam Condensers-This Code provides test methods for conducting and reporting thermal performance characteristics of. ASME PTC (R) Air-Cooled Steam Condensers This Code provides test methods for conducting and reporting thermal performance.
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Asme ptc 4 pdf – ptc 4 pdf Asme ptc Adjustments are only permitted provided that the deviation and stability criteria of para. In that case the temperature shall be adjusted for thepump work.
ASME PTC 30.1-2007.pdf
Numerical constants used in the equations and examples in the Code, unless other- wise specified, are based on SI Units. Measure- ment of multiple fan motor loads on a common bus is acceptable. To the extent possible, ancillary system drains flowing into the condensate tank or other parts of the ACC dur- ing the test shall be closed. Therefore, the values have been read off thecurves rather than calculated. The test plan should follow the guidelines and recommendations given in Section 3.
Data review should start at the beginning ofthe test, providing an opportunity for immediate discov-ery of possible errors in instruments, procedures, or mea-surement methods. It should also be recognized that more complex and reliable levels of performance moni- toring require increased quantities of instrumentation.
Additional test points not required by this Code may be included for reference purposes by mutual agreement between the parties to the test. Note that where thisCode refers to NIST standards and calibrations, othernations equivalent standards laboratories may be usedas appropriate for the locale of the testing.
Chandran, Holtec International J. If, however, there is more thanone guarantee case, the most stringent of these will bethe controlling guarantee case, and the vendor shallidentify it. In consideration of theseeffects, ambient wind velocity shall be measured. The results of a thermal performance test, conducted infull compliance with the procedures and instrumenta-tion specified in this Code, shall be considered valid ifASME PTC This is the value by which eachparameter can be changed to create a smallchange in the calculated result.
June 24, This Code will be revised when the Society approves the issuance of a new edition. Unstable conditions can disqualify a test, as defined in para. The results are presented in the form of flow visualization plots and graphs of velocity and pressure effects.
ASME PTC (R) – Air-Cooled Steam Condensers
This asm flow capability may be alternatively expressed as a deviation from design flow capability, a deviation from design turbine backpressure, or as the absolute value of the steam tur- bine backpressure. The subsections in Section 3, Guiding Principles specifically describe the following: Theseinstruments shall be separated in equal amounts andpositioned xsme around the ACC perimeterwith one in the center of the ACC plot.
Alternative and equiv-alent graphical formats are frequently used as follows: It also pro- vides guidelines for monitoring thermal performance and conducting routine tests. These appendices contain pragmatic techniques that use lesser accuracyinstrumentation and procedures that will allow plant personnel to maintain the lowest turbinebackpressures without the higher costs or engineering efforts associated with acceptance testing.
Manufacturer and Model is by seller. After the corrections have been incorporated, and the incremental changes in the pressure, for exam- ple, correspond to operational changes asje the pressure of the ACC, the retrieved information can be used to start an historical file on the ACC performance parame- ters. It may be a flange or a landing bar for a weld. Each pressure measurement point shall be provided with a dedicated pressure measurement device.
A minimum pptc five calibration points covering the expected range of temperatures shall be taken.
Using the Hour 4 values from Table A There shall be a written procedure for the calibration of each type of instrument. Cases may be issued for the purpose of providing alternative rules when justified, to permit early implementation of an approved revision when the need is urgent, or to provide rules not covered by existing provisions.
Ptv performance curves shall depict operation with all fans running at full speed. Normal cogeneration steam loads shall be allowed during the test.