Thermal resistance definition

Thermal resistance. (R-value) means the resistance to the flow of heat of a particular body or assembly. “R-value” is measured in the United States customary units, ft2-hr-degrees F/Btu.
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Thermal resistance or “R-value” means a measure of the ability to retard the flow of heat. The R-value is the reciprocal of thermal transmittance or U-factor expressed as R= 1/U.
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Thermal resistance means a measure of the ability of materials to retard the transfer of heat.
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Examples of Thermal resistance in a sentence

  • Thermal resistance between junction and ambient fluctuates depending on the device’s mounting condition.

  • Thermal resistance is expressed as the R, which is measured in square meters Kelvin per Watt (m²K/W).

  • Thermal resistance is a measure of how much heat loss is reduced through the given thickness of a material.

  • Where proposed construction assemblies are not represented in Appendix A, values shall be calculated in accordance with the ASHRAE Handbook of Fundamentals using the framing factors listed in Appendix A where applicable and shall include the thermal bridging effects of framing materials.C402.1.4.1 Thermal resistance of cold-formed steel stud walls.

  • Thermal resistance is a measure of how much heat loss is reduced through a given thickness of a material.

  • Thermal resistance data in this report is solely for a thermal performance comparison of one package to another in a standardized specified environment.

  • Thermal resistance, junction to specified reference point, RθJR, in °C/W.

  • Check the IGU manufacturer’s technical literature before specifying the RSI or R values..4 Thermal resistance: [RSI [ ] (R [ ])].

  • This list is not exhaustive and it is expected there will be additions and changes to the Schedule as the Council advances its records structure.

  • Thermal resistance depends on the number of layers or size of the board.


More Definitions of Thermal resistance

Thermal resistance or “R−value” means a measure of the ability to retard the flow of heat. The R−value is the reciprocal of thermal transmittance or U−factor expressed as R = 1/U.
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