Turbine4

Notes

4 Performance and Mechanical Standards The gas turbine is a complex machine, and its performance and reliability are governed by many standards. The American Society of Mechanical Engineers (ASME) perfor- mance test codes have been written to ensure that tests are conducted in a manner that guarantees that all turbines are tested under the same set of rules and conditions to ensure that the test results can be compared in a judicious manner. The reliability of the turbines depends on the mechanical codes that govern the design of many gas turbines. The mechanical standards and codes have been written by both ASME and the American Petroleum Institute. Major Variables for a Gas Turbine Application The major variables that affect the gas turbines are the following factors: 1. Type of application 2. Plant location and site configuration 3. Plant size and efficiency 4. Type of fuel 5. Enclosures 6. Plant operation mode: base or peaking 7. Start-up techniques Each of the above points are discussed in the following sections. Type of Application The gas turbine is used in many applications, and in most parts, the application deter- mines the type of gas turbine that is best suited. The thr...