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ASTM C 680 Document Information:
Title
Standard Practice for Estimate of the Heat Gain or Loss and the Surface Temperatures of Insulated Flat, Cylindrical, and Spherical Systems by Use of Computer Programs
ASTM International
Publication Date:
May 1, 2004
Scope:
This practice provides the algorithms and calculation
methodologies for predicting the heat loss or gain and surface
temperatures of certain thermal insulation systems that can attain
one dimensional, steady- or quasi-steady-state heat transfer
conditions in field operations.
This practice is based on the assumption that the thermal
insulation systems can be well defined in rectangular, cylindrical
or spherical coordinate systems and that the insulation systems are
composed of homogeneous, uniformly dimensioned materials that
reduce heat flow between two different temperature conditions.
Qualified personnel familiar with insulation-systems design and
analysis should resolve the applicability of the methodologies to
real systems. The range and quality of the physical and thermal
property data of the materials comprising the thermal insulation
system limit the calculation accuracy. Persons using this practice
must have a knowledge of the practical application of heat transfer
theory relating to thermal insulation materials and systems.
The computer program that can be generated from the algorithms
and computational methodologies defined in this practice is
described in Section 7 of this practice. The computer program is
intended for flat slab, pipe and hollow sphere insulation systems.
An executable version of a program based on this standard may be
obtained from ASTM.
The values stated in inch-pound units are to be regarded as the
standard. The values given in parentheses are for information
only.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate appropriate
safety and health practices and determine the applicability of
regulatory limitations prior to use.
Keywords:
- computer program
- heat flow
- heat gain
- heat loss
- pipe
- thermal insulation
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