12.05.2003 - In October 2001, in customer in South Africa placed an order with MAN Turbo for two gas turbine - compressor - packages to form the core of a pipeline station close to the TEMANE gas field in Mozambique. A natural gas processing plant is located upstream of the only compressor station existing hitherto along the pipeline, which runs for 865 kilometers as far as South Africa. 10 million Nm³ of natural gas are transported daily. The gas is intended to replace a portion of the synthesis gas obtained in the South African coal gasification installations. Expansion of the existing gas field and of a further field is expected to increase the throughput in the pipeline in the near future. The two MAN Turbo machines are due to be commissioned in mid-2003, with commercial operation anticipated for 2004.

Two type THM1304-11 gas turbines each drive a centrifugal pipeline compressor, type RV063/04. In addition to the drivers and driven equipment, the order covers all the fuel, control and auxiliary systems included in the package as well as transportation and supervising installation. The gas turbines have already been tested and have exceeded expectations with regard to their performance parameters. The first compressor had been undergoing testing on the free-field test stand in October 2002. Both packages are designed for outdoor erection.

This compact, gearless MAN Turbo engineering solution has already been tried and tested in a number of projects of the same configuration worldwide. The excellent performance parameters, sturdy construction and low pollutant emissions are important and convincing characteristics of the gas turbine. The proven technology also enables the customer to maintain the machines in situ and to carry out repairs independently. Varying pressure conditions and the sharp pressure gradient in the pipeline call for a high degree of flexibility in the compressor station. This flexibility is optimally guaranteed by the design of the MAN Turbo RV pipeline compressors. The compressors are designed so as to facilitate upgrading to a higher pressure ratio at any time.

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