Thermodynamics, Environmental and Economic Assessment of CRGT for Exhaust Heat Recovery in Remote Compressor Station Applications PUBLIC ACCESS

[+] Author Affiliations
K. K. Botros, M. J. de Boer

NOVA Research & Technology Corporation, Calgary, AB, Canada

H. G. Fletcher

NOVA Gas Transmission Ltd., Calgary, AB, Canada

Paper No. 97-GT-510, pp. V002T07A003; 11 pages
  • ASME 1997 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Orlando, Florida, USA, June 2–5, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7869-9
  • Copyright © 1997 by ASME


Thermodynamic/environmental assessment of a CRGT system was carried out on an RB211 based compressor station. The configured cycle was evaluated using the commercial process simulation software ASPEN PLUS®. The results of the thermodynamic assessment are presented in terms of overall thermal efficiency, specific work, unit duties, conversion rates and other relevant parameters. The above were determined for varying fuel split ratios, steam to carbon ratios in the reformer, and part loads. Comparison between CRGT operation and STIG operation is given. A NOx model was also constructed based on a one dimensional model of the combustor using ASPEN PLUS® which showed substantial reduction of the NOx emissions from the CRGT as compared to the basic cycle. Additionally, the CRGT system is evaluated economically in terms of capital and operating costs of the added equipment to a typical compressor station operation. Preliminary results of these environmental and economic analysis are presented.

Copyright © 1997 by ASME
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