Boiling on a straight pin fin

Lin, Wenzhi; Lee, D. J.

doi:10.1002/aic.690421004

Cited by 21 publications

(17 citation statements)

References 10 publications

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“…To this end, we have plotted 0 versus for some different values of in the interval [−4, −2] through Eqs. (18) and (22) in Fig. 1.…”

Section: The Case ≤ −mentioning

confidence: 97%

“…1,2,17 It is clear from the literature review that the research has been greatly focused on the theoretical and experimental thermal analysis of both solid fins and porous fins with different profiles and thermophysical properties due to wide range of applications. [3][4][5][6][7][8][9]12,[24][25][26][27][28] By assuming a constant thermal conductivity of the fin material, the dimensionless governing equation for pin fins with power-law type heat transfer coefficients reads 11,15,16,[18][19][20][21]23…”

Section: Preliminaries and Problem Formulationmentioning

confidence: 99%

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Exact, analytic temperature distributions of pin fins with constant thermal conductivity and power‐law type heat transfer coefficient

Shivanian

Campo

2017

Heat Trans. Asian Res.

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In this Technical Note, the problem of determining the temperature distribution in a pin fin with power-law heat transfer coefficients is addressed. It is demonstrated that the governing fin equation, a nonlinear second-order differential equation, is exactly solvable for the entire range of the exponent in the power-law heat transfer coefficients. The exact, closed-form analytical solutions in implicit form are convenient for physical interpretation and optimization for maximum heat transfer. Furthermore, it is proved that the exact solutions have three different structures: (1) dual in the range of ≤ −2, (2) unique or dual in the range of −2 < < −1, and (3) unique in the range of ≥ −1. Additionally, exact analytical expressions for the fin efficiency and the fin effectiveness are provided, both as a function of the dimensionless fin parameter for the gamma of under study.

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“…To this end, we have plotted 0 versus for some different values of in the interval [−4, −2] through Eqs. (18) and (22) in Fig. 1.…”

Section: The Case ≤ −mentioning

confidence: 97%

Section: Preliminaries and Problem Formulationmentioning

confidence: 99%

Exact, analytic temperature distributions of pin fins with constant thermal conductivity and power‐law type heat transfer coefficient

Shivanian

Campo

2017

Heat Trans. Asian Res.

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“…The liquid temperature is adjusted by the preheater, and is measured by a thermocouple (5). Temperatures at 4 axial positions in the heating block was measured by thermocouples at a rate of 1 Hz, sending automatically to the data acquisition system (8) connected to a personal computer (9).…”

Section: Received 2000mentioning

confidence: 99%

Boiling of HFE-7100 on a straight pin fin

et al. 2001

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This paper deals with an experimental investigation Of pin fin boiling of saturated and subcooled HFE-7100 under atmospheric pressure. Fin base temperature and heat flux data are measured along with the fin tip temperature. The basic features of boiling stability of HFE-7100 boiling on pin fin had been reported for the first time. For a given liquid/heating surface combination there exist upper steady-state (USS) branch and lower steady-state (LSS) branch, and a large, unstable regime located in between. Zones with different stability characteristics are mapped according to boiling on fins with different aspect ratios. Liquid subcooling can largely enhance heat transfer performance. A longer fin can provide a safer operation.

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“…The fin tip was insulated to simu-Ž . late the theoretical prediction made in Lin and Lee 1996 . Experimental procedures were as follows. The liquid temperature was initially adjusted to the desired value.…”

Section: Experimental Studiesmentioning

confidence: 99%