Natural Convection Cooling in Vertical Finned Plates in a Cabinet for Communication Equipment

Norio NAKAZATO; Shigeki HIRASAWA; Takanori MATO

Natural Convection Cooling in Vertical Finned Plates in a Cabinet for Communication Equipment

Norio NAKAZATO, Shigeki HIRASAWA, Takanori MATO

Full Text Views

0

Cite this

Summary :

A simulation model for natural convection was developed for determining the surface temperature distribution in base plates with rectangular vertical fins in communication equipment. An estimated velocity derived from the buoyancy and pressure drop equations in a duct was used for laminar forced convection cooling simulations in parallel plates. Temperature distributions in finned plates were calculated by numerical integration of the heat conduction equation. An experimental study was also performed, to check these simulation results, by changing the height of fins, the pitch of fins, and the heat generation conditions. Experimental results and analytical results were found to agree well. Also, this simulation method was extended to analyze natural convection cooling in vertical base plates with inclined parallel fins. We placed alternately on the plates the sections without fins and the sections with fins on the plates. Using the inclined fins, air flow rate between fins was large and fresh air flew into the fins from the side of the plates. The natural convective heat-transfer rate for inclined fins was found to be 14% higher than that for vertical fins.

Publication: IEICE TRANSACTIONS on Electronics Vol.E81-C No.3 pp.421-426

Publication Date: 1998/03/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Electromechanical Devices and their Surface Science)

Category

Cite this

Copy

Norio NAKAZATO, Shigeki HIRASAWA, Takanori MATO, "Natural Convection Cooling in Vertical Finned Plates in a Cabinet for Communication Equipment" in IEICE TRANSACTIONS on Electronics, vol. E81-C, no. 3, pp. 421-426, March 1998, doi: .
Abstract: A simulation model for natural convection was developed for determining the surface temperature distribution in base plates with rectangular vertical fins in communication equipment. An estimated velocity derived from the buoyancy and pressure drop equations in a duct was used for laminar forced convection cooling simulations in parallel plates. Temperature distributions in finned plates were calculated by numerical integration of the heat conduction equation. An experimental study was also performed, to check these simulation results, by changing the height of fins, the pitch of fins, and the heat generation conditions. Experimental results and analytical results were found to agree well. Also, this simulation method was extended to analyze natural convection cooling in vertical base plates with inclined parallel fins. We placed alternately on the plates the sections without fins and the sections with fins on the plates. Using the inclined fins, air flow rate between fins was large and fresh air flew into the fins from the side of the plates. The natural convective heat-transfer rate for inclined fins was found to be 14% higher than that for vertical fins.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e81-c_3_421/_p

Copy

@ARTICLE{e81-c_3_421,
author={Norio NAKAZATO, Shigeki HIRASAWA, Takanori MATO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Natural Convection Cooling in Vertical Finned Plates in a Cabinet for Communication Equipment},
year={1998},
volume={E81-C},
number={3},
pages={421-426},
abstract={A simulation model for natural convection was developed for determining the surface temperature distribution in base plates with rectangular vertical fins in communication equipment. An estimated velocity derived from the buoyancy and pressure drop equations in a duct was used for laminar forced convection cooling simulations in parallel plates. Temperature distributions in finned plates were calculated by numerical integration of the heat conduction equation. An experimental study was also performed, to check these simulation results, by changing the height of fins, the pitch of fins, and the heat generation conditions. Experimental results and analytical results were found to agree well. Also, this simulation method was extended to analyze natural convection cooling in vertical base plates with inclined parallel fins. We placed alternately on the plates the sections without fins and the sections with fins on the plates. Using the inclined fins, air flow rate between fins was large and fresh air flew into the fins from the side of the plates. The natural convective heat-transfer rate for inclined fins was found to be 14% higher than that for vertical fins.},
keywords={},
doi={},
ISSN={},
month={March},}

Copy

TY - JOUR
TI - Natural Convection Cooling in Vertical Finned Plates in a Cabinet for Communication Equipment
T2 - IEICE TRANSACTIONS on Electronics
SP - 421
EP - 426
AU - Norio NAKAZATO
AU - Shigeki HIRASAWA
AU - Takanori MATO
PY - 1998
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E81-C
IS - 3
JA - IEICE TRANSACTIONS on Electronics
Y1 - March 1998
AB - A simulation model for natural convection was developed for determining the surface temperature distribution in base plates with rectangular vertical fins in communication equipment. An estimated velocity derived from the buoyancy and pressure drop equations in a duct was used for laminar forced convection cooling simulations in parallel plates. Temperature distributions in finned plates were calculated by numerical integration of the heat conduction equation. An experimental study was also performed, to check these simulation results, by changing the height of fins, the pitch of fins, and the heat generation conditions. Experimental results and analytical results were found to agree well. Also, this simulation method was extended to analyze natural convection cooling in vertical base plates with inclined parallel fins. We placed alternately on the plates the sections without fins and the sections with fins on the plates. Using the inclined fins, air flow rate between fins was large and fresh air flew into the fins from the side of the plates. The natural convective heat-transfer rate for inclined fins was found to be 14% higher than that for vertical fins.
ER -