ASTM C680-03a

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

SCOPE
1.1 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.
1.2 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.
1.3 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.
1.4 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.
1.5 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.6 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 safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 30-Nov-2003
• ICS: 27.220 - Heat recovery. Thermal insulation
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.30 - Thermal Measurement

Relations

• Replaces: ASTM C680-03e1 - 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
• Effective Date: 01-Dec-2003
• Replaced By: ASTM C680-04 - 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
• Effective Date: 01-May-2004
• Referred By: ASTM C1371-15(2022) - Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers
• Effective Date: 01-Dec-2003
• Referred By: ASTM C1774-13(2019) - Standard Guide for Thermal Performance Testing of Cryogenic Insulation Systems
• Effective Date: 01-Dec-2003
• Referred By: ASTM C1057-22 - Standard Practice for Determination of Skin Contact Temperature from Heated Surfaces Using a Mathematical Model and Thermesthesiometer
• Effective Date: 01-Dec-2003
• Referred By: ASTM C553-13(2019) - Standard Specification for Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications
• Effective Date: 01-Dec-2003
• Referred By: ASTM C1393-19 - Standard Specification for Perpendicularly Oriented Mineral Fiber Roll and Sheet Thermal Insulation for Pipes and Tanks
• Effective Date: 01-Dec-2003
• Referred By: ASTM C1045-19 - Standard Practice for Calculating Thermal Transmission Properties Under Steady-State Conditions
• Effective Date: 01-Dec-2003
• Referred By: ASTM C1696-20 - Standard Guide for Industrial Thermal Insulation Systems
• Effective Date: 01-Dec-2003
• Referred By: ASTM C1129-17 - Standard Practice for Estimation of Heat Savings by Adding Thermal Insulation to Bare Valves and Flanges
• Effective Date: 01-Dec-2003
• Referred By: ASTM C892-19 - Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
• Effective Date: 01-Dec-2003
• Referred By: ASTM F683-23 - Standard Practice for Selection and Application of Thermal Insulation for Piping and Machinery
• Effective Date: 01-Dec-2003
• Referred By: ASTM C547-22a - Standard Specification for Mineral Fiber Pipe Insulation
• Effective Date: 01-Dec-2003
• Referred By: ASTM C335/C335M-23 - Standard Test Method for Steady-State Heat Transfer Properties of Pipe Insulation
• Effective Date: 01-Dec-2003
• Referred By: ASTM C592-22a - Standard Specification for Mineral Fiber Blanket Insulation and Blanket-Type Pipe Insulation (Metal-Mesh Covered) (Industrial Type)
• Effective Date: 01-Dec-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C 680 – 03a
Standard Practice for
Estimate of the Heat Gain or Loss and the Surface
Temperatures of Insulated Flat, Cylindrical, and Spherical
1
Systems by Use of Computer Programs
This standard is issued under the fixed designation C 680; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
1.1 This practice provides the algorithms and calculation 2.1 ASTM Standards:
methodologies for predicting the heat loss or gain and surface C 168 Terminology Relating to Thermal Insulating Materi-
temperatures of certain thermal insulation systems that can als
attain one dimensional, steady- or quasi-steady-state heat C 177 Test Method for Steady-State Heat Flux Measure-
transfer conditions in field operations. ments and Thermal Transmission Properties by Means of
1.2 This practice is based on the assumption that the thermal the Guarded Hot Plate Apparatus
insulation systems can be well defined in rectangular, cylindri- C 335 Test Method for Steady-State Heat Transfer Proper-
cal or spherical coordinate systems and that the insulation ties of Horizontal Pipe Insulation
systems are composed of homogeneous, uniformly dimen- C 518 Test Method for Steady-State Heat Flux Measure-
sioned materials that reduce heat flow between two different ments and Thermal Transmission Properties by Means of
temperature conditions. the Heat Flow Meter Apparatus
1.3 Qualified personnel familiar with insulation-systems C 585 Practice for Inner and Outer Diameters of Rigid
design and analysis should resolve the applicability of the Thermal Insulation for Nominal Sizes of Pipe and Tubing
methodologies to real systems. The range and quality of the (NPS System)
physical and thermal property data of the materials comprising C 1055 Guide for Heated System Surface Conditions That
the thermal insulation system limit the calculation accuracy. Produce Contact Burn Injuries
1.4 The computer program that can be generated from the C 1057 Practice for Determination of Skin Contact Tem-
algorithms and computational methodologies defined in this perature from Heated Surfaces Using a Mathematical
practice is described in Section 7 of this practice. The computer Model and Thermesthesiometer
program is intended for flat slab, pipe and hollow sphere 2.2 Other Document:
insulation systems. An executable version of a program based NBS Circular 564 Tables of Thermodynamic and Transport
on this standard may be obtained from ASTM. Properties of Air, US Dept of Commerce
1.5 The values stated in inch-pound units are to be regarded
3. Terminology
as the standard. The values given in parentheses are for
3.1 Definitions—For definitions of terms used in this prac-
information only.
1.6 This standard does not purport to address all of the tice, refer to Terminology C 168.
3.1.1 thermal insulation system—for this practice, a thermal
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- insulation system is a system comprised of a single layer or
layers of homogeneous, uniformly dimensioned material(s)
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. intended for reduction of heat transfer between two different
1
This practice is under the jurisdiction of ASTM Committee C16 on Thermal
2
Insulation and is the direct responsibility of Subcommittee C16.30 on Thermal For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Measurements. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved Dec. 1, 2003. Published January 2004. Originally Standards volume information, refer to the standard’s Document Summary page on
e1
approved in 1971. Last previous edition approved in 2003 as C 680 - 03 . the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C 680 – 03a
temperature conditions. Heat transfer in the system is steady- ture dependent thermal conductivity in a material. Algorithms
state. Heat flow for a flat system is normal to the flat surface, and computational methodologies for predicting heat loss or
and heat flow for cylindrical and spherical systems is radial. gain of single or multi-layer thermal insulation systems are
3.2 Symbols—The following symbols are used in the devel- provided by this practice for implementation in a computer
opment of the equations for this practice. Other symbols will program. In addit
...