Studies on pumping power in terms of pressure drop and heat transfer characteristics of compact plate-fin heat exchangers—A review

Ismail, L. Sheik; Velraj, R.; Ranganayakulu, C.

doi:10.1016/j.rser.2009.06.033

Cited by 75 publications

(9 citation statements)

References 39 publications

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“…Shah et al (1997) provides numerical studies of single-phase flow, heat transfer and flow friction characteristics of compact heat exchanger surfaces and made specific comparisons to verify the accuracy of numerical work. Sheik Ismail et al (2010) have reviewed various available j and f correlations and presented the conditions and assumptions while generating them. Bhowmik and Kwan (2009), Ranganayakulu et al (2008), Sheik Ismail et al (2009, Pallavi and Ranganayakulu (2011) and Bala Sundar Rao et al (2013) carried out numerical simulation to establish the correlations for f and j factors for generation of design data for offset, wavy and rectangular plain fins using CFD.…”

Section: Introductionmentioning

confidence: 99%

Steady state and transient analysis of compact plate-fin heat exchanger fins for generation of design data using CFD

Ranganayakulu

2016

Int Jnl of Num Meth for HFF

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Purpose -The purpose of this paper is to carry out numerical modeling of single-blow transient analysis using FLUENT porous media model for estimation of heat transfer and pressure drop characteristics of offset and wavy fins. Design/methodology/approach -A computational fluid dynamics program FLUENT has been used to predict the design data in terms of j and f factors for plate-fin heat exchanger wavy and offset strip fins, which are widely used in aerospace applications. Findings -The suitable design data in terms of Colburn j and Fanning friction f factors is generated and presented correlations for wavy fins covering the laminar, transition and turbulent flow regimes. Originality/value -The correlations for the friction factor f and Colburn factor j have been found to be good by comparing with other references. The correlations can be used by the heat exchanger designers and can reduce the number of tests and modification of the prototype to a minimum for similar applications and types of fins.

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Section: Introductionmentioning

confidence: 99%

Steady state and transient analysis of compact plate-fin heat exchanger fins for generation of design data using CFD

Ranganayakulu

2016

Int Jnl of Num Meth for HFF

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“…Sheik Ismail et al (2010) focuses on the research and development of compact offset and wavy plate‐fin heat exchangers. The review is summarized under three major sections.…”

Section: Introductionmentioning

confidence: 99%

Development of heat transfer coefficient and friction factor correlations for offset fins using CFD

Ranganayakulu

Paturu

2011

International Journal of Numerical Methods for Heat &Amp; Fluid Flow

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Purpose -In aerospace applications, due to the severe limitations on the weight and space envelope, it is mandatory to use high performance compact heat exchangers (CHEs) for enhancing the heat transfer rate. The most popularly used ones in CHEs are the plain fins, offset strip fins (OSFs), louvered fins and wavy fins. Amongst these fin types, wavy and offset fins assume a lot of importance due to their enhanced thermo-hydraulic performance. The purpose of this paper is to investigate the influence of geometrical fin parameters, in addition to Reynolds number, on the thermo-hydraulic performance of OSFs. Design/methodology/approach -A computational fluid dynamics approach is used to conduct a number of numerical experiments for determination of thermo-hydraulic performance of OSFs considering the various geometrical parameters, which are generally used in the aerospace industry. These investigations include the study of flow pattern for laminar, transition and turbulent regions. Studies are conducted with different fin geometries and comparisons are made with available data in open literature. Finally, the generalized correlations are developed for OSFs taking all geometrical parameters into account for the entire range of operations of the aerospace industry covering laminar, transition and turbulent regions. In addition, the effects of various geometrical parameters are presented as parametric studies. Findings -Thermo-hydraulic design of CHEs is strongly dependent upon the predicted/measured dimensionless performance (Colburn factor "j" and Fanning friction "f" vs Reynolds number Re) of heat transfer surfaces. Several types of OSFs used in the compact plate-fin heat exchangers are analyzed numerically.Research limitations/implications -The present numerical analysis is carried out for "air" media and hence these results may not be accurate for other fluids with large variations of Prandtl numbers. Practical implications -In open literature, these fins are generally evaluated as a function of Reynolds number experimentally, which are expensive. However, their performance will also depend to some extent on geometrical parameters such as fin thickness, fin spacing, offset fin length and fin height. Originality/value -This numerical estimation can reduce the number of tests/experiments to a minimum for similar applications.

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“…The study of pressure drop, “△ p ” in PFHE is necessary, because it has both favorable and adverse impacts on its design. The favorable effect is that the “△ p ” value increases heat transfer, 48 and the adverse effect is that, it increases the pumping power 49 . The variation of the results obtained for the value of “△ p ” by different correlations and by the Aspen EDR at different hot fluids is depicted in Figure 2A.…”

Section: Resultsmentioning

confidence: 97%

Rating and performance of plate fin heat exchanger used for cryogenic separation of CO ₂

Nandakishora

Sahoo

Murugan

et al. 2022

Intl J of Energy Research

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Carbon capture by cryogenic treatment is one of the emerging methods in curbing carbon dioxide (CO 2 ) emissions, because it not only offers energy-saving, but also environmental benefits due to the absence of chemicals as used by other methods. However, the cryogenic system used for CO 2 capture demands a high-effectiveness heat exchanger. In this case, a plate-fin heat exchanger (PFHE) is used. In this study, PFHE is analyzed for decreasing the temperature of CO 2 and N 2 mixture with cold N 2 gas. The study consists of three parts that are (i) a comparative study of Aspen EDR with heat exchanger parameter evaluation correlations such as Joshi & Webb, Manglik & Bergles, and Maiti & Sarangi, and (ii) validation of Aspen EDR software with experimental results which is available from open literature. Hence, validation of heat exchanger design is indirectly done with experimental results. (iii) Besides this, the research is aimed at studying the influence of the gas mixture inlet temperature, the concentration of CO 2 , pressure drop, and the mass flow rate on PFHE's effectiveness. The study results are analyzed and presented in this research article.

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Studies on pumping power in terms of pressure drop and heat transfer characteristics of compact plate-fin heat exchangers—A review

Cited by 75 publications

References 39 publications

Steady state and transient analysis of compact plate-fin heat exchanger fins for generation of design data using CFD

Steady state and transient analysis of compact plate-fin heat exchanger fins for generation of design data using CFD

Development of heat transfer coefficient and friction factor correlations for offset fins using CFD

Rating and performance of plate fin heat exchanger used for cryogenic separation of CO ₂

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Studies on pumping power in terms of pressure drop and heat transfer characteristics of compact plate-fin heat exchangers—A review

Cited by 75 publications

References 39 publications

Steady state and transient analysis of compact plate-fin heat exchanger fins for generation of design data using CFD

Steady state and transient analysis of compact plate-fin heat exchanger fins for generation of design data using CFD

Development of heat transfer coefficient and friction factor correlations for offset fins using CFD

Rating and performance of plate fin heat exchanger used for cryogenic separation of CO 2

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Product

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Rating and performance of plate fin heat exchanger used for cryogenic separation of CO ₂