THERMAL SCIENCE

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Sergey V. Alekseenko

,

Lev A. Ogurechnikov

THE USE OF NATURAL HEAT OF DRY HOT ROCKS OF THE EARTH WITH A GAS COOLANT

ABSTRACT
The energy options for utilizing the deep heat of the Earth using n-pentane as a working fluid for generating electricity in the organic Rankine cycle are analyzed. The relationships between the initial and final parameters of the cycle are determined. The ratio of the average diameters of turbine stages to the working blades height along the flow part is estimated. A satisfactory profile of the flow part of an axial single-flow multistage jet turbine with subsonic flow rates of the working gas has been obtained.
KEYWORDS
Rankine cycle, axial-type turbine, thermodynamics, diverging angle of the turbine stage
PAPER SUBMITTED: 2023-07-14
PAPER REVISED: 2023-09-15
PAPER ACCEPTED: 2023-09-26
PUBLISHED ONLINE: 2023-11-11
DOI REFERENCE: https://doi.org/10.2298/TSCI230714233A
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 1, PAGES [283 - 291]
REFERENCES
  1. Di Pippo, R., Geothermal Power Plants: Principles, Applications, Case Studies, and Environmental Impact, Elsevier, Oxford, UK, 2005, p. 450
  2. Alekseenko, S. V., Geothermal Energy Technology, Breakthrough Ideas in Energy for the Next 10 Years, Association on Development of the International Research and Projects in the field of Energy, Repoprt, Global Energy, 2022, pp. 135-155
  3. Gnatus, N. A., Petrothermal Energy of Russia (in Russian), Prospects of Development and Development, Report, - M.: INP RAS, 2013, p. 27
  4. Alkhasov, A. B., Geothermal Energy: Problems, Resources, Technologies, Fizmatlitgiz, Moskow, Russia, 2008, p. 376
  5. ***, The world′s first truly scalable form of Green baseload power demonstrated by Eavor //- M.: INP RAS, 2013, p. 27
  6. Zaurbekov, S. S., et al., Results of Design Development for the Pilot Geothermal Plant at the Khankala Deposit in Chechen Republic, Ecology, Environment and Conservation, 21 (2015), Suppl., pp. S157-S161
  7. Song, V., et al., Thermodynamic Analysis of a Transcritical CO2 Power Cycle Driven by Solar Energy with Liquefied Natural Gas as Its Heat Sink, Appl. Energy, 92 (2012), Apr., pp.194-203
  8. Shengjun, Z., et al., Performance Comparison and Parametric Optimization of Subcritical Organic Rankine Cycle (ORC) and Transcritical Power Cycle System for Low-Temperature Geothermal Power Generation, Appl. Energy, 88 (2011), 8, pp. 2802-2810
  9. He, C., et al., Theoptimal Evaporation Temperature and Working Fluids for Subcritical Organic Rankine cycle, Energy, 38 (2012), 1, pp. 138-143
  10. Sauret, E., et al., Candidate Radial-Inflow Turbines and High-Densityworking Fluids for Geothermal Power Systes, Energy, 36 (2011), 7, pp. 4460-4467
  11. Casati, E., New Concepts for Organic Rankine Cycle Power Systems, Aerospace Engineering, Milan, Italy, 2014, p. 249
  12. ***, NIST Chemistry WebBook, SRD 69, Thermophysical Properties of 1,1,13,3-pentafluoropropan (R245fa)
  13. ***, Standard reference data, Isobutane liquid and gaseous, Standartinform, 2018
  14. ***, N-pentane, Thermodynamic Properties in the Triple Point Temperature Range up to 700 K at Pressures up to 100 MPa (in Russian), GSSSD 291-2013, (2013), p. 54
  15. Alekseenko, S. V., et al., Problems and Outlooks for Petrothermal Power Engineering (Review), Thermophysics and Aeromechanics, 23 (2016), Apr., pp. 1-16
  16. Zakharov, A. V., Penza, G. G., Critical Modes of Operation of the Last Stages of Powerfulsteam Turbines with Blades of Maximum Length, Energetika, 1 (2013), pp. 41-44
  17. Shcheglyaev, A. V., Steam turbines (in Russian), Energiya, (1976), p. 368
  18. Vawra, M. H., Aero-Thermodynamics and Flow in Turbomachines, N.Y.-London, UK, 1960, p. 609
  19. Kirillov, I. I., et al., Steam Turbines and Steam Turbine Installations (in Russian), Mashinostroenie, 278 1978
  20. Nicola, G. I., Vapor Pressure and Gas Phase P-V-T Data for 1.1.1.3.3-pentafluoropropane (R245fa), Journal of Chemical and Engineering Data, 46 (2001), 6, pp. 1619-1622
  21. Alekseenko, S. V., Ogurechnikov, L. A., Concerning Utilization of Heat from Low-Potential Sources, Thermal Science, 23 (2019), 6B, pp. 4023-4030
  22. Kirillov, I. I., et al., Some Design Features of The Last Stages of Steam Turbines (in Russian), Thermal Power Engineering, 9 (1981), pp. 34-36
  23. Vawra, M. H., Aero-Thermodynamics and Flow in Turbomachines, Journal of Royalm Aeronautical Society, 65 (1961), Jan., pp. 144-145
  24. Deitch, M. E., et al., A New Method for Profiling Guide Grids of Steps With a Small d/l, Heat Power Engineering, 8 (1962), pp. 42-47
  25. Deich, M. E., et al., Methods of Increasing the Efficiency of Steps with Low Blade Heights, Heat Power Engineering (in Russian), MAIK Science/Interperiodics, 2 (1960), pp. 18-24
  26. Delhaye, J. M., et al., Thermohydraulics of Two-Phase Systems for Industrial Design and Nuclear Enginsering, McGraw-Hill Book Co., New York, USA, 1981, p. 525
  27. Alekseenko, S. V., Ogurechnikov, L. A., Heat exchange In Steam Generator with Low-Boiling Point Fluid, Thermal Science, 25 (2021), 5A, pp. 3569-3578
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The use of natural heat of dry hot rocks of the earth with a gas coolant

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence