FRP Coef. of Thermal Expansion (x 1,000,000) - CAESAR II - Help

CAESAR II Users Guide (2019 Service Pack 1)

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English
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CAESAR II
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CAESAR II Version
11.0 (2019)

Specifies the thermal expansion coefficient. The coefficient is used in conjunction with the temperatures on the Classic Piping Input dialog box for each plastic pipe element to calculate the thermal strain (linear thermal expansion) for the element.

Typical units (depending on your unit system):

  • in/in/ºF x 1.0E6

  • mm/mm/ºC x 1.0E6

  • cm/cm/ºC x 1.0E6

The default thermal expansion coefficient for fiberglass reinforced plastic pipe is 12.0E-6 in./in./deg.F (21.6E-6 mm./mm./deg.C). If you have a more suitable value for this composite, type that value without the implied exponent of 10-6 (E-6). For example, if the value is 8.5E-6, then type 8.5.

This method does not provide for any variation in the thermal expansion coefficient as a function of temperature. This may not be accurate if parts of the system are at different non-ambient temperatures. In this case, you can always calculate the thermal strain at temperature in units of length-per-length (such as in/in or mm/mm) and then type this value into the Temperature box on the Classic Piping Input dialog box.

For new models, the default value is obtained from the configuration file.