Thin-Film Steam Generators of Binary Geothermal Power Plants
- Authors: Gogonin I.I.1
-
Affiliations:
- Kutateladze Institute of Thermophysics of SB RAS
- Issue: Vol 111, No 2 (2022)
- Pages: 97-104
- Section: Original Study Articles
- URL: https://freezetech.ru/0023-124X/article/view/107957
- DOI: https://doi.org/10.17816/RF107957
- ID: 107957
Cite item
Abstract
BACKGROUND: The cost of electricity generated by a geothermal power plant is twice as low as that of energy sources. However, at present, geothermal power plants mainly use submersible-type apparatus, and the most promising thin-film steam generators have not been sufficiently investigated.
AIM: The purpose of this work is to show the advantages of a thin–film steam generator in comparison with an immersion type heat exchanger.
MATERIALS AND METHODS: The basis for this publication is the experimental research of the author and the analysis of data cited in the literature on heat exchange during the boiling of a film irrigating a bundle of finned pipes.
CONCLUSIONS: The use of thin-film steam generators will significantly reduce the amount of expensive refrigerant in a geothermal power plant circuit. With a cocurrent flow of steam and liquid, the ingress of large drops onto the surface of a superheater tubes is excluded. The use of finned tubes in a bundle with optimal finning parameters ensures a uniform irrigation. The artificial centers of vaporization of the finned tube repeatedly intensify the heat transfer during film boiling, which ultimately leads to a reduction in the weight and dimensions of the superheater.
Full Text
About the authors
Ivan I. Gogonin
Kutateladze Institute of Thermophysics of SB RAS
Author for correspondence.
Email: gogonin@itp.nsc.ru
ORCID iD: 0000-0001-8914-5860
Dr. Sci. (Tech), Prof., Principal Researcher
Russian Federation, NovosibirskReferences
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