Test Of Process Turbocompressors Without CFC Gasses.
Increasing restrictions from environmental protection laws will necessitate at least partial substitution of chlorofluorocarbon (CFC) gases still in use today for performance tests of turbocompressors in closed loops. The International Compressed Air and Allied Machinery Committee (ICAAMC), therefore, formed a working group which investigated substitution possibilities for the most commonly used CFC Freon R22 (R12). The working group has come to the conclusion that R134a can be used as a substitute test gas in full compliance with standard test procedures. The theoretical results have been confirmed by a performance test with R134a and parallel measurements with R22. The working group recommends putting a ban on the use of CFC gases which contain chlorine. The main aspects which justify this recommendation are discussed.
Aicher, Walter (1993). Test Of Process Turbocompressors Without CFC Gasses.. Texas A&M University. Turbomachinery Laboratories. Available electronically from