ASTM-E2684 2009

$40.63

E2684-09 Standard Test Method for Measuring Heat Flux Using Surface-Mounted One-Dimensional Flat Gages

Published By	Publication Date	Number of Pages
ASTM	2009	7

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Categories: 17.200.10 - Heat. Calorimetry, ASTM

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Description

1.1 This test method describes the measurement of the net heat flux normal to a surface using flat gages mounted onto the surface. Conduction heat flux is not the focus of this standard. Conduction applications related to insulation materials are covered by Test Method C 518 and Practices C 1041 and C 1046 . The sensors covered by this test method all use a measurement of the temperature difference between two parallel planes normal to the surface to determine the heat that is exchanged to or from the surface in keeping with Fourier s Law. The gages operate by the same principles for heat transfer in either direction.

1.2 This test method is quite broad in its field of application, size and construction. Different sensor types are described in detail in later sections as examples of the general method for measuring heat flux from the temperature gradient normal to a surface ( 1 ). Applications include both radiation and convection heat transfer. The gages have broad application from aerospace to biomedical engineering with measurements ranging form 0.01 to 50 kW/m ² . The gages are usually square or rectangular and vary in size from 1 mm to 10 cm or more on a side. The thicknesses range from 0.05 to 3 mm.

1.3 The values stated in SI units are to be regarded as the standard. The values stated in parentheses are provided for information only.

1.4 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.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use FIG. 1
3	Apparatus-Sensor Construction FIG. 2
4	FIG. 3
5	Calibration Procedure Calculation of Heat Flux
6	Report Measurement Uncertainty Keywords REFERENCES
7	NON-CITED REFERENCES

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ICS Codes	17.200.10 - Heat. Calorimetry

ASTM-E2684 2009

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