The research of the fluid distribution through the pipes of a shell-and-tube heat exchanger when employing different methods of fluid injection into the apparatus and new distribution devices creation

Authors

  • O. I. Klyuev Kherson National Technical University, Kherson, Ukraine
  • K. V. Lunyaka The Kherson branch of the National university of shipbuilding named after Admiral Makarov, Kherson, Ukraine
  • S. A. Rusanov Kherson National Technical University, Kherson, Ukraine

DOI:

https://doi.org/10.31498/2225-6733.38.2019.181285

Keywords:

heat exchanger, uniform distribution of heat carrier through pipes, power expense for pumping liquid, distribution devices

Abstract

The results of studies of the inlet pipe location (axial, radial, tangential) influence on the uniform distribution of the heat carrier through the pipes of a shell-and-tube heat exchanger and the energy consumed for pumping the heat carrier are presented. As it becomes apparent from researches, radial and tangential introduction has advantages over axial introduction as to evenness of liquid distribution along the pipes of heat exchanger and power expended on pumping. So, with radial introduction it is possible to attain practically even distribution of heat carrier along the pipes, influencing on such structural features of heat exchanger, as correlation of diameters of the inlet pipe and the lid
(Dар/D0 = 4,7). With less diameter of the inlet pipe (Dар/D0 = 7,5) it is possible to attain equalization of the speeds of the heat-carrier in different pipes increasing the relation of the lid height to its diameter (h/Dар); it being necessary to take into account when making heat-exchangers. If these criteria are not adhered to it is necessary to use special distributive devices. With respect to the expense of power, used for pumping liquid it is expended the least with tangential introduction of liquid into the heat exchanger. As to the axial introduction of liquid into the heat exchanger it is impossible to attain even distribution of speeds of heat carrier over the plane of the pipe grate just increasing the diameter of the inlet pipe and the lid height, therefore special distributive devices are required in this case to get even speeds. To adjust the hydraulic resistance over the heat exchanger section it was suggested to use flat insertions with the calculated resistance of the fragments. The necessary resistance was created by drilling out the necessary number of openings, it being determined from Euler equation. Based on the obtained data, an insert design has been proposed, which combines the design features of both a “pipe- in- pipe” type heat exchanger and a shell-and-tube heat exchanger

Author Biographies

O. I. Klyuev, Kherson National Technical University, Kherson

Кандидат технічних наук, доцент

K. V. Lunyaka, The Kherson branch of the National university of shipbuilding named after Admiral Makarov, Kherson

Доктор технічних наук, професор

S. A. Rusanov, Kherson National Technical University, Kherson

Кандидат технічних наук, доцент

References

Перелік використаних джерел (ГОСТ):

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References:

Kaminski D.A., Jesen M.K. Introduction to thermal and fluid engineering. Johg Willy Sons, Inc. Danvers Publ., 2005. 783 p.

Valueva E.P., Domoratskaya T.A. Otsenka teplogidravlicheskoi effektivnosti rekuperativnykh teploobmennykh apparatov [Evaluation of the heat-hydraulic efficiency of recuperative heat exchangers]. Teploenergetika – Heat power engineering, Moscow, 2000, no. 3, pp. 43-48. (Rus.)

Klyuyev O.I. Optimіzatsіia roboti kozhukhotrubnogo teploobmіnnika shliakhom vplivu na gіdrodinamіku potoku. Avtoref. diss. kand. techn. nauk [Optimization of heat exchanges job by influence on hydrodynamics of a flow. Cand. tech. sci. diss. thesis]. Kherson, 2006. 24 p. (Ukr.)

Lunyaka K.V., Klyuev O.I. Rusanov S.A. Stvorennia rіvnomіrnogo rozpodіlu shvidkostі rukhu teplonosіia v trubakh kozhukhotrubchastogo teploobmіnnika za dopomogoiu rozpodіl’nikh vstavok. Materiali Mizhn. nauk.-tehn. konf. «Transport, mekhanіchna іnzhenerіia, ekspluatatsіia, materіaloznavstvo» (TMIEM-2017) [Creation of a uniform distribution of the heat transfer velocity in the pipes of the shell and tubular heat exchanger with the help of distributive inserts. Proceedings of Int. Sci.-Techn. Conf. «Transport, mechanical engineering, operation, material sciences» (TMIEM-2017)]. Kherson, 2017, pp. 35-36. (Ukr.)

Lunyaka K.V., Klyuev O.I., Rusanov S.A. Vpliv rozpodіl’nikh vstavok v kozhukhotrubchastikh teploobmіnnikakh na velichinu rushіinoї sili protsesіv teploobmіnu. Anotatsii IV Mizhn. nauk.-tehn. konf. «Holod v energetytsi i na transporty» [Influence of distribution inserts in shell and tubular heat exchangers on the magnitude of the driving force of heat transfer processes. Abstracts of IV Int. Sci.-Techn. Conf. «Cold in energy and transport»]. Mykolaiv, 2017, p. 464. (Ukr.)

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How to Cite

Klyuev, O. I., Lunyaka, K. V., & Rusanov, S. A. (2019). The research of the fluid distribution through the pipes of a shell-and-tube heat exchanger when employing different methods of fluid injection into the apparatus and new distribution devices creation. Reporter of the Priazovskyi State Technical University. Section: Technical Sciences, (38), 53–58. https://doi.org/10.31498/2225-6733.38.2019.181285

Issue

No. 38 (2019): Reporter of the PSTU. Section: Technical sciences

Section

Heat engineering and heat-power engineering

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