Reduced Temperature

The Reduced Temperature calculator computes the reduced temperature, one of a set of reduced properties of a fluid substance, defined by the ratio of the actual temperature (T) to the substance's critical temperature (T_c).  

INSTRUCTIONS: Choose temperature units and enter the following:

• (T) Actual Measured Temperature
• (T_cr) Critical Temperature for Substance

Reduced Temperature (T_r): The calculator returns the reduced temperature ratio as a real number rounded to the nearest 1,000^th.  However, this can be automatically converted to a percent or decibel via the pull-down menu.

The Math / Science

The reduced properties of a fluid are a set of state variables normalized by the fluid's state properties at the fluid's critical point.  The formulas for reduced temperature is:

T_r = T / T_cr

where:

• T_r = Reduced Temperature
• T = Actual Measured Temperature
• T_cr = Critical Temperature for Substance