A Parametric Study of Functionally Graded Rotating Annular Fin

Gaba, Vivek Kumar; Tiwari, Anil Kumar; Bhowmick, Shubhankar

doi:10.1016/j.proeng.2015.11.436

Cited by 11 publications

(3 citation statements)

References 15 publications

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“…Many calculations and result show that when the slope increase the heat transfer rate decrease. In recently Gaba et al in 2015 [53] analysis and reported the parametric study of well-designed and categorized rotating annular fins and investigate the efficient of rotating fins and categorizing the material in the performance of annular fins. Further a convective annular fin is considering for heat transfer having uniform crosssectional area.…”

Section: Periodic Heat Transfers From Annular Finsmentioning

confidence: 99%

Analysis of periodic heat transfer through extended surfaces

2023

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This article is concerned with the review of periodic heat transfer through extended surfaces known as fins. In this review, we bring out the detail study of heat transfer of periodic type variation through extended surfaces. Heat transfer which has been remained a warm area of research under various conditions for the researchers in last many decades. In the current analysis, an attempt is appointed to study, analyze and summarize the result of the periodic heat transfer and flow in various fins. Further, we are carried out the analysis for the periodic heat transfers through various kind of extended surface also called fins in the presence of periodic base and ambient temperature. The performance of the extended surface is expressed in terms of the fin effectiveness and its efficiency. The heat transfer process is regulated by three experimentally determined dimensionless parameters such as the frequency parameter w, the convectional fins parameter N, and the amplitude parameter A. Further the fins performance and efficiency are demonstrated through several examples.

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Section: Periodic Heat Transfers From Annular Finsmentioning

confidence: 99%

Analysis of periodic heat transfer through extended surfaces

2023

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“…High efficiency and effectiveness were reported for a combination of small values of geometry parameters. The thermal performance of a rotating rectangular annular fin was analysed by Gaba et al (2015), in which functionally graded material as a fin material was considered. A power function was used to vary the thermal conductivity along the fin length.…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of variable thickness longitudinal fin with functionally graded material in dry and fully wet conditions

Bajpai

Soni²,

Gaba

et al. 2022

WJE

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Purpose When the temperature of an air conditioning unit’s fin surface goes below its dew point temperature, condensation forms on the unit’s surface. As a result, the cooling coil’s performance is compromised. By altering the cross-section and heat conductivity of the fins, the performance of such systems can be improved. This study aims to analyze the thermal performance of longitudinal fins made up of a variable thickness (assuming constant weight) and functionally graded material. Design/methodology/approach Different grading parameters are considered for an exponential variation of thermal conductivity. The humidity ratio and the corresponding fin temperatures are assumed to follow a cubic relationship. The Bvp4c solver in MATLAB® is used to solve the differential heat transfer equation resulting from balancing heat transfer in a small segment. Findings Validation of the methodology is provided by previous research presented in this area. For different combinations of grading parameters, geometry parameters and relative humidity, the normalized temperature distribution along the fin length and fin efficiency contours are plotted, and the results are very promising. Originality/value When compared to the efficiency of an isotropic homogenous rectangular longitudinal fin with optimal geometry and grading parameters, a 17% increase in efficiency under fully wet conditions is measured. When it comes to fin design, these efficiency contour plots are extremely useful.

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“…In a recent work, Gaba et al (2015) reported the parametric study of functionally graded rotating annular fin where in the effect of rotating fin parameter and grading of material on the performance of rectangular annular fin has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Performance of Orthotropic Annular Fins Having Contact Resistance

Aasi¹,

Gaba²,

Tiwari³

et al. 2017

Frontiers in Heat and Mass Transfer

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Due to low density and low coefficient of thermal expansion, orthotropic materials, namely, the polymer matrix composites are finding their way in many of the engineering application. The present study investigates the performance of the orthotropic annular fin. The thermal conductivity along radial and axial direction is governed by the thermal conductivity ratio (K), which is an important parameter for orthotropic annular fin. The work then numerically examines in two dimensions, the thermal performance of the annular fin at different thermal conductivity ratio (K) for the rectangular profile using the finite difference method. Different convective heat transfer coefficient are considered at the fin sides and the fin tip. The effect of various parameters such as axial Biot number (Bis), contact Biot number (Bic), tip Biot number (Bie), aspect ratio (b/a), thermal conductivity ratio (K) on the efficiency (Η) and temperature distribution over the fin surface are presented.

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A Parametric Study of Functionally Graded Rotating Annular Fin

Cited by 11 publications

References 15 publications

Analysis of periodic heat transfer through extended surfaces

Analysis of periodic heat transfer through extended surfaces

Performance analysis of variable thickness longitudinal fin with functionally graded material in dry and fully wet conditions

Performance of Orthotropic Annular Fins Having Contact Resistance

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