Critical radius for radial heat conduction: a necessary criterion but not always sufficient

M. R. Kulkarni

Critical radius for radial heat conduction: a necessary criterion but not always sufficient

M. R. Kulkarni^*

^*Corresponding author for this work

Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Use of the critical radius for radial heat conduction in thermal insulation systems has been widely reported in the literature. When it is desirable to increase heat dissipation, this critical radius can be used in a definitive manner to maximize the heat dissipation. However, if it is desirable to decrease heat gain or heat loss, the critical radius only serves as a necessary condition, but it is not sufficient. To address design of such thermal systems, a new crossover radius is introduced. A crossover radius is a radius greater than the critical radius and is defined such that the heat transfer with the corresponding amount of insulating material is equal to that of the bare thermal system. Both cylindrical and spherical systems are considered.

Original language	English (US)
Title of host publication	American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Publisher	ASME
Pages	369-382
Number of pages	14
ISBN (Print)	0791816567
State	Published - Dec 1 1999
Event	Heat Transfer Division - 1999 ((The ASME International Mechanical Engineering Congress and Exposition) - Nashville, TN, USA Duration: Nov 14 1999 → Nov 19 1999

Publication series

Name	American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume	364-4
ISSN (Print)	0272-5673

Other

Other	Heat Transfer Division - 1999 ((The ASME International Mechanical Engineering Congress and Exposition)
City	Nashville, TN, USA
Period	11/14/99 → 11/19/99

ASJC Scopus subject areas

Mechanical Engineering
Fluid Flow and Transfer Processes

Cite this

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title = "Critical radius for radial heat conduction: a necessary criterion but not always sufficient",

abstract = "Use of the critical radius for radial heat conduction in thermal insulation systems has been widely reported in the literature. When it is desirable to increase heat dissipation, this critical radius can be used in a definitive manner to maximize the heat dissipation. However, if it is desirable to decrease heat gain or heat loss, the critical radius only serves as a necessary condition, but it is not sufficient. To address design of such thermal systems, a new crossover radius is introduced. A crossover radius is a radius greater than the critical radius and is defined such that the heat transfer with the corresponding amount of insulating material is equal to that of the bare thermal system. Both cylindrical and spherical systems are considered.",

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Kulkarni, MR 1999, Critical radius for radial heat conduction: a necessary criterion but not always sufficient. in American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD, vol. 364-4, ASME, pp. 369-382, Heat Transfer Division - 1999 ((The ASME International Mechanical Engineering Congress and Exposition), Nashville, TN, USA, 11/14/99.

Critical radius for radial heat conduction: a necessary criterion but not always sufficient. / Kulkarni, M. R.
American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD. ASME, 1999. p. 369-382 (American Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD; Vol. 364-4).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AB - Use of the critical radius for radial heat conduction in thermal insulation systems has been widely reported in the literature. When it is desirable to increase heat dissipation, this critical radius can be used in a definitive manner to maximize the heat dissipation. However, if it is desirable to decrease heat gain or heat loss, the critical radius only serves as a necessary condition, but it is not sufficient. To address design of such thermal systems, a new crossover radius is introduced. A crossover radius is a radius greater than the critical radius and is defined such that the heat transfer with the corresponding amount of insulating material is equal to that of the bare thermal system. Both cylindrical and spherical systems are considered.

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Critical radius for radial heat conduction: a necessary criterion but not always sufficient

Abstract

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Other

ASJC Scopus subject areas

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