Defects in air heaters can be troublesome for their performance, sparking a multitude of longstanding additional problems. For example, excessive air leakage can be responsible for the degradation of the performance of downstream air pollution control equipment, increased heat rate, increased rate of cold end air heater basket corrosion, and increased potential for fires and explosives, among many other concerns. These documents provide uniform rules and procedures for the planning, preparation, execution, and reporting of performance test results. Specifically, the test procedures in the PTC can be used to determine the following:.
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Defects in air heaters can be troublesome for their performance, sparking a multitude of longstanding additional problems. For example, excessive air leakage can be responsible for the degradation of the performance of downstream air pollution control equipment, increased heat rate, increased rate of cold end air heater basket corrosion, and increased potential for fires and explosives, among many other concerns.
These documents provide uniform rules and procedures for the planning, preparation, execution, and reporting of performance test results. Specifically, the test procedures in the PTC can be used to determine the following:.
It also provides procedures for determining the heat capacity ratio X-ratio , which may be necessary under certain conditions. It does not, however, cover direct-fired air heaters or gas-to-gas heat exchangers.
Your email address will not be published. This site uses Akismet to reduce spam. Learn how your comment data is processed. Skip to content Defects in air heaters can be troublesome for their performance, sparking a multitude of longstanding additional problems. Specifically, the test procedures in the PTC can be used to determine the following: exit gas temperature air to gas leakage fluid pressure losses other fluid temperatures It also provides procedures for determining the heat capacity ratio X-ratio , which may be necessary under certain conditions.
Work on this latest revision was conducted for several reasons, fulfilling the need to: include test uncertainty minimize the prescriptive guidelines and emphasize the performance-based approach address air heater configurations with multiple flow streams update measurement methods include improved instrumentation currently available base combustion calculations on O 2 instead of CO 2 update nomenclature comply with ASME policy that SI units be used in publications ASME PTC 4.
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Air Heaters
Digital products are restricted to one per purchase. Become a member. This Code provides procedures for conducting performance tests of air heaters to determine: exit gas temperature; air to gas leakage; fluid pressure losses; and other fluid temperatures. It also provides procedures to determine the heat capacity ratio X-ratio and any or all of the performances results specified above that may be necessary for: checking actual performance against standard or design performance; comparing changes in performance over time with standard or design performance; comparing performance under various operating conditions; and determining the effect of changes in equipment. This Code applies to all air heaters used in industrial application, e.
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ASME PTC 4.3 - 1991 Air-Heaters.pdf
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