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Rankine Cycle Efficiency under Maximum Power Generation Condition as Applied to Low-Temperature Power Plant Using a Cryoproduct as the Working Substance

  • RESEARCH, DESIGN, NUMERICAL ANALYSES, AND OPERATING EXPERIENCERESEARCH, DESIGN, NUMERICAL ANALYSES, AND OPERATING EXPERIENCE
  • CRYOGENIC EQUIPMENT, PRODUCTION AND APPLICATION OF INDUSTRIAL GASES. VACUUM TECHNOLOGY
  • Published:
Chemical and Petroleum Engineering Aims and scope

The “carnotized” Rankine cycle efficiency is studied under conditions of maximum power generation in a low-temperature power plant using a cryoproduct as the working substance. A method is proposed for evaluating the thermodynamic efficiency of the cycles that make efficient use of cold energy. A generalized thermal efficiency equation, ηtN = 1 − (TC/Th)m , is derived for low-temperature cycles, which can be used to increase the accuracy of determination of the efficiency and the amount of additional power generation by 20–40 %. The amount of power generated in the low-temperature power plant is estimated based on the criterion of maximum performance. This method of calculation of the characteristics of low-temperature cycles is applicable for any energy generating systems. It is shown that utilization of cold energy of a cryogenic fuel (liquefied natural gas) is a promising direction of development of the idea of cogeneration and trigeneration in power plants.

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Authors and Affiliations

  1. S. P. Korolev Samara National Research University (Samarskii Natsional’nyi Issledovatel’skii Universitet im. S. P. Koroleva), Samara, Russia

    A. I. Dovgyallo, D. A. Uglanov & K. E. Vorotyntseva

  2. N. É. Bauman Moscow State Technical University (Moskovskii Gosudarstvennyi Tekhnicheskii Universitet im. N. É. Baumana), Moscow, Russia

    I. A. Arkharov

Authors
  1. A. I. Dovgyallo
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  2. D. A. Uglanov
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  3. K. E. Vorotyntseva
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  4. I. A. Arkharov
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Corresponding author

Correspondence to A. I. Dovgyallo.

Additional information

Translated from Khimicheskoe i Neftegazovoe Mashinostroenie, Vol. 56, No. 6, pp. 3–7, June, 2020.

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Dovgyallo, A.I., Uglanov, D.A., Vorotyntseva, K.E. et al. Rankine Cycle Efficiency under Maximum Power Generation Condition as Applied to Low-Temperature Power Plant Using a Cryoproduct as the Working Substance. Chem Petrol Eng 56, 423–432 (2020). https://doi.org/10.1007/s10556-020-00790-z

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  • DOI: https://doi.org/10.1007/s10556-020-00790-z

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