Thermal Performance Analysis for Optimal Passive Cooling Heat Sink Design

A previous study by the authors on fin-shape optimization of a plate fin heat sink has concluded that a depopulated central zone, just under the center of the fan, provides a better thermal performance compared to the heat sink geometries with fin material under the fan. This study extends the previous work by investigating the effect of removal of fin material from the end fins, the total number of fins, and the reduction in the size of the hub fan. From this study, it is concluded that the removal of fin material from the end fins results in a better thermal and hydraulic performance of the heat sink. The reduction in the size of the hub causes a more uniform distribution of air inside the heat sink. The increase in the number of fins indicates a slightly better thermal performance, accompanied by a considerably increased pressure drop. Finally, a new optimal heat sink design has been reported by employing the actual fan operating characteristics.

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Dry and Wet-Peaking Tower Cooling Systems For Power Plant Application

Journal of Engineering for Power ◽

10.1115/1.3446174 ◽

1976 ◽

Vol 98 (3) ◽

pp. 335-346

Author(s):

M. W. Larinoff ◽

L. L. Forster

Keyword(s):

Power Plant ◽

Performance Analysis ◽

Thermal Performance ◽

Heat Sink ◽

Cooling Tower ◽

Cooling System ◽

Water Requirements ◽

Surface Type ◽

Makeup Water ◽

Cooling Systems

A new concept of power plant heat-sink system is presented which employs the combination of a conventional wet-tower and a conventional dry-tower. The purpose of this cooling system is to reduce wet cooling-tower makeup-water requirements in water-short areas. The dry tower operates all year around while the wet-peaking tower is used only above certain ambient dry-bulb temperatures. The two cooling circuits serve separate sections of a conventional, surface-type, steam condenser. Thermal performance analysis is presented for various combinations of cooling systems ranging from 100 percent wet to 100 percent dry. Annual makeup-water requirements are calculated for various sizes of towers located in 18 selected cities of the U.S.A. ranging from north to south and east to west.

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Thermal Modeling and Experimental Validation of Heat Sink Design for Passive Cooling of BEOL IC Structures

2018 24rd International Workshop on Thermal Investigations of ICs and Systems (THERMINIC) ◽

10.1109/therminic.2018.8593284 ◽

2018 ◽

Cited By ~ 1

Author(s):

Assaad El Helou ◽

Peter E. Raad ◽

Dhishan Kande ◽

Archana Venugopal

Keyword(s):

Heat Sink ◽

Experimental Validation ◽

Thermal Modeling ◽

Passive Cooling ◽

Heat Sink Design

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Numerical Optimization Study for a Parallel Plate Impingement Heat Sink

2003 International Electronic Packaging Technical Conference and Exhibition, Volume 2 ◽

10.1115/ipack2003-35236 ◽

2003 ◽

Cited By ~ 2

Author(s):

Amit Shah ◽

Bahgat Sammakia ◽

Hari Srihari ◽

Koneru Ramakrishna

Keyword(s):

Thermal Performance ◽

Heat Sink ◽

Numerical Optimization ◽

Single Unit ◽

Parallel Plate ◽

Central Zone ◽

Operating Characteristics ◽

Optimization Study ◽

Heat Sink Design ◽

Increased Pressure

This paper presents the numerical analysis of an impingement heat sink designed for use with a specific blower as a single unit. Shat et al. (2002) had performed a fin shape optimization study for the same heat sink and concluded that a de populated central zone, just under the center of the fan, provides a better thermal performance as compared to the heat sink geometries with fin material under the fan. The results presented in this paper are an extension to the study described in Shah et al. (2002). The effects of removal of fin material from the end fins, the total number of fins, and, the reduction in the size of the hub have been investigated. The removal of fin material from the end fins results in the better thermal and hydraulic performance. The reduction in the size of the hub causes a more uniform distribution of air inside the heat sink. The increase in the number of fins indicates a slightly better thermal performance, accompanied by a considerably increased pressure drop. Finally a new optimal heat sink design has been reported. This design is shown to perform better as compared to the original heat sink design under the actual fan operating characteristics.

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