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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Normal cogeneration steam loads shall be asmd the test. The method and results of this correction shall be mutually agreed between the parties and taken into account in the fan motor input power measurement.
Estimates of systematic and random errorfor each of the proposed test measurements shall beused to help determine the number and quality of testinstruments required for compliance with Code or con-tract specifications.
Persons wishing to attend any meeting should contact the Secretary of the PTC NTU Number of heat transfer units. Asme ptc 4 pdf – ptc 4 pdf Asme ptc Wilber, Alternate, Environmental Systems Corp.
Inaddition, the uncertainty of Code tests that determinethe condensate temperature shall be less than 0. It is highly recommended that provisions for ACCperformance testing be incorporated into the design ofthe facility where the ACC is located. This Code also provides procedures for assessing compliance to specified dissolved oxygen and specified condensate temperature. ASME accepts responsibility for only those interpretations of this document issued in accordance with the established ASME procedures and policies, which precludes the issuance of interpretations by individuals.
ASME PTC (R) – Air-Cooled Steam Condensers
The involved parties shall mutually agree on the location of this measurement point. Using steam tables or equivalent software pgc the specific enthalpy and specific entropy of the low pressure turbine inlet steam.
Capability is given as the ratio of thecorrected test steam flow and the guarantee steam flow.
Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights, and the risk of infringement of such rights, isentirely their own responsibility. These are concepts thatmust be addressed prior to the construction of the ACC,as they will impact the test philosophy and method.
Proceed to Checkout Continue Shopping. The use of a data acquisition system is recommended. Powerful graphics permit the basis or computed variables to be comprehensively displayed. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large. The primary format for graphical presentation, which was chosen for use in Section 5, Computation of Results, and Nonmandatory Appendix A, Sample Calculations of Amse, is a plot of Condenser Pressure vs.
The general approach is to incorporate the dimensions of the required geometry into the 330.1 model. The performance test report shall include theindividual identification and location for each instru-ment used in the test so that calibration history can betraced.
ASME PTC 空气冷却蒸汽冷凝剂 – MBA智库文档
This Code does not address procedures for assessing noise. HgA to ensure a concrete uncertainty target that is achievable and at the same time provides a good test.
As a result the steam quality may deviate from its design value requiring that a correc- tion be made see paras. Calculate the systematic standard deviationfor each of the test instruments at the basevalue of the test parameters.
ASME PTC 30.1-2007.pdf
Benchmark milestone operating and maintenance condi- tions 30. as washing the outside of the tube bundles, adjusting the fan blade pitch or asem major air leaks. As a result, the Committee decided not to update the existing Code but rather to create a new Code expressly for the performance testing of the ACCs utilized on power plants.
The selected location shall allow forthe quantification of other loads, if any, such that theinput fan motor input power can be obtained. As internal access is typically impractical after installa-tion of the ACC, an internal test connection should bespecified during the ACC design.
Enterthe performance curve at the measured ACC pressureand inlet air temperature to find a steam mass otc rate. The request should identify the Code, the paragraph, figure or table number sand be written as a Question and Reply in the same format as existing Cases. With regard to steam exhaust pressure and air inlet temperature measurements, refer to sections of this Code or the supporting PTC 19 Series Codes for instru- mentation choices.
The operating cycle shallbe isolated to the maximum extent practical. The friction across the tube bank and heat transfer from steam to air is also included. Readings shall be taken at six positions 30 degapart around the circumference of the pipe. A large national Committee was convened the following year that was comprised of experts from manufacturing, utility-owners, test agency, academia, and consultants in the field.
HgA toensure a concrete uncertainty target that is achievableand at the same time provides a good test. Define a perturbation increment for each parameter. Measure-ment of multiple fan motor loads on a common bus isacceptable. The designconditions including steam mass flow rate, steam tur-bine backpressure, steam quality, fan motor input power,atmospheric pressure, and inlet air dry bulb temperatureshall be printed on the curves.
The testing agency is not one of the parties. The test coordinator 300.1 verifythat the methods of operation during testing, as speci-fied in para. The basicprocedure for computation of performance capability isas follows: The CFD study can also aid the Code acceptance test plan itself and indicate what measurement inaccura- cies may be encountered or the modified wind condi- tions or instrument locations that could enhance the overall test accuracy. Backfitting an existing system for the required measurements can be very expensive and time-consuming at best, and virtu- ally impossible at worst.
Stability may need to be established following any adjustment. If cleaning of the surfaces is necessary, it shall be per- formed by a commercially acceptable method.
Four-wire RTDs shall be used. Exhaust Enthalpy should correspond with each case. The overall uncertainty in the ACC capability for the test series is: A single test point located in the area of thecondenser pressure pt test points issufficient. The wind case shows a significantly larger varia- tion of flow, the lowest values occurring on the wind- ward side. In consideration of these effects, ambient wind velocity shall be measured. When this is not possible, temperatures18may be measured downstream of the condensate pump.
The rec-ommended number of test runs provides a sufficientnumber of test results for a statistically significant evalu-ation of uncertainty.