| Section (Section Number) | Title | Content Covered | | :---------------------- | :--------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | | Object, Scope, and Application | Defines the code's purpose and applicability. It also introduces the crucial concept of uncertainty , which is fundamental to any performance test. | | 2 | Sample Point and Analysis Selection Criteria | Guides the user on selecting appropriate locations for taking samples from specific points in the power cycle, such as makeup, condensate, polisher effluent, deaerator, feedwater, and various stages of steam . | | 3 | Obtaining the Sample | This critical section details the procedures for representative sampling. It includes dedicated guidance for water sampling, isokinetic sampling for two-phase flows, saturated steam, and superheated steam . | | 4 | Transporting the Sample | Provides guidelines for sample line construction and addresses issues like material deposition and potential phase changes during transport to prevent contamination or alteration before analysis. | | 5 | Sample Conditioning | Covers the equipment and methodology for preparing samples for analysis. This includes specifications for sample coolers, filters, pressure regulators, and flow meters to bring the sample to a safe and measurable state. | | 6 | Sample Analysis and Instrumentation | Specifies techniques and instrumentation for analyzing chemical composition. It also includes definitions for key analytical terms and their applications. | | 7 | Data Acquisition and Data Analysis | Focuses on the purpose of data collection, ensuring data quality, and proper data storage and handling. | | Appendix A | Leakage Detection and Measurement | Provides nonmandatory methods for detecting and measuring leaks within the power cycle, a common source of contamination and inefficiency. | | Appendix B | Throttling Calorimeter | Offers guidance on using a throttling calorimeter, a traditional device for measuring steam quality or moisture content. |
The primary object of this code is to define the methods and instrumentation necessary for testing boiler makeup water, feedwater, steam, and condensate. Its application covers two main areas: Asme Ptc 19.11 Pdf
Rod meters or capillary tubes reduce pressure smoothly without causing flashing (sudden boiling), which ruins sample integrity. | Section (Section Number) | Title | Content
In steam systems, impurities like silica, sodium, and iron oxides often travel as particulate matter or liquid droplets suspended in a vapor stream. | | 3 | Obtaining the Sample |
Contains foundational blueprints for conditioning panels.
The standard mandates the use of non-reactive materials throughout the sample conditioning system.