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Interest of ammonia-water absorption chiller to enhance closed cycle gas turbine performance during peak demand comparison with centrifugal chiller.

Number: pap. 1214

Author(s) : TAUVERON N., BOUDÉHENN F., POUVREAU J., et al.

Summary

Paper published in poster form during the conference. The study concerns a heat-to-power cycle at a maximal temperature of 515°C generating 300 MWe. The specificity of the work is to consider an alternative cycle to traditional Rankine machine in order to avoid high pressure steam. The selection falls on a high pressure nitrogen turbo-compressor in a recuperated and intercooled Brayton cycle. Within a regulatory framework, the system is required to participate in the primary and secondary frequency settings. This leads of having the capacity to keep a reserve of electrical power to be provided to the grid on demand coming from the electrical network management. A very effective means is to cool the fluid at compressor inlet. Furthermore thermal energy storage tanks are used to charge and discharge thermal energy produced by a chiller. Two technologies of chillers are compared to accomplish cooling: ammonia-water absorption chiller and HFC (HydroFluoroCarbons) centrifugal chiller. Criteria for evaluation are: size, net power production and CAPEX (CAPital EXPenditure).

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Details

  • Original title: Interest of ammonia-water absorption chiller to enhance closed cycle gas turbine performance during peak demand comparison with centrifugal chiller.
  • Record ID : 30023759
  • Languages: English
  • Source: 13th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2018). Proceedings. Valencia, Spain, June 18-20th 2018.
  • Publication date: 2018/06/18
  • DOI: http://dx.doi.org/10.18462/iir.gl.2018.1214

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