Improving the geometric topology of geothermal heat exchangers in oil bore-holes

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dc.contributor.authorFyk, M. I.en
dc.contributor.authorBiletskyi, V. S.en
dc.contributor.authorRyshchenko, Ihoren
dc.contributor.authorAbbood, Mohammeden
dc.date.accessioned2022-01-25T08:15:15Z
dc.date.available2022-01-25T08:15:15Z
dc.date.issued2019
dc.description.abstractA review has been conducted of key trends in the development of geometric topology of geothermal heat exchangers. Authors proposed approaches to improving the designs and network structures for heattransfer media circulation in the bottom-hole space of oil-and-gas reservoirs. Four geometric topologies of geothermal heat exchangers have been analysed: І – ІІ – rectilinear vertical smooth and finned pipelines; ІІІ – IV – a cluster in the form of a set of smooth and finned single-pipe elements, representing a figure of "squirrel wheel" or "meridian sphere" type. It is shown that the most effective technical solution, which ensures the increase in the coefficient of performance (COP) of bore-hole geothermal systems is finning the heat exchanging pipes. For the heat exchangers of І – ІІ type, the calculated increase in COP in comparison with smooth pipes is 40%, and for ІІІ – IV type – 95%. The key parameters influencing the COP of a geothermal heat exchanger are: the radius of fluids draining out during the heat exchange process, the radius of pipelines with circulating heat-transfer medium, the diameter of a cluster heat exchanger, the heat exchange area, the parameters of rocks thermal resistance in the bottom-hole zone of heat-receiving.en
dc.identifier.citationImproving the geometric topology of geothermal heat exchangers in oil bore-holes / M. Fyk [et al.] // Ukrainian School of Mining Engineering : E3S Web Conf., October 22, 2019. – Electronic text data. – 2019. – Vol. 123, No. 01023. – Access mode: https://www.e3s-conferences.org/articles/e3sconf/abs/2019/49/e3sconf_usme2019_01023/e3sconf_usme2019_01023.html, free (date of the application 13.01.2022.).en
dc.identifier.doidoi.org/10.1051/e3sconf/201912301023
dc.identifier.urihttps://repository.kpi.kharkov.ua/handle/KhPI-Press/55691
dc.language.isoen
dc.subjectheat exchangeren
dc.subjectgeothermal energy resourcesen
dc.subjectcoefficient of performanceen
dc.subjectbottom-hole zoneen
dc.subjectheat-receivingen
dc.subjectrocks thermal resistanceen
dc.titleImproving the geometric topology of geothermal heat exchangers in oil bore-holesen
dc.typeThesisen

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