Standardized compressor modules

A supplementary eompressor (eonsisting of commercial off-the-shelf compressor or standard compressor modules) to provide the supplementary airflow up-stream of combustors. 

The gas turbine installed in the plant is an almost standard Typhoon from ABB Alstom Gas Turbines in Lincoln, England. Modified components are the combustors, the burners and the addition of an air bleed from the compressor, Furthennore, has a special design gas control module been developed to control the product gas, steam and nitrogen to the unit. 

Nowadays, the standard cryostats are closed-cycle helium refrigerators. They are commercially available. We use either the Displex Closed-Cycle System CSA from Air Products or the Closed-Cycle Compressor Unit RW 2 with Coldhead Base Unit 210 and Extension Module ROK from Leybold. These systems can run for thousands of hours with minimal maintenance. The sample holder can be cooled to temperatures from room temperature to about 10 K. A typical example of a closed-cycle helium matrix apparatus is shown in Figure 1.1. 

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