Note:
This calculator is designed to help you determine the specific volume of wet steam, which is a crucial parameter in thermodynamics and engineering applications, particularly in the analysis of steam systems and power plants. The specific volume of wet steam depends on two key inputs:
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Specific Volume of Dry Steam (vg):
This is the volume occupied by one kilogram of dry (saturated) steam at a given pressure, measured in cubic meters per kilogram (m³/kg). Dry steam is steam that is entirely in the vapor phase, with no liquid water present. The value of ( v_g ) is typically obtained from steam tables or thermodynamic property databases, which provide properties of water and steam at various temperatures and pressures.
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Dryness Fraction (x):
The dryness fraction, also known as the quality of steam, represents the proportion of dry steam in a mixture of steam and liquid water. It is a dimensionless quantity ranging from 0 to 1. A dryness fraction of 0 indicates that the mixture is entirely liquid (saturated liquid), while a dryness fraction of 1 indicates that the mixture is entirely dry steam (saturated vapor). For wet steam, the dryness fraction is between 0 and 1, indicating a mixture of liquid and vapor phases.
Key Points to Remember:
- The dryness fraction must always be between 0 and 1. If the value is outside this range, the calculation is invalid.
- The specific volume of dry steam (\( v_g \)) depends on the pressure and temperature of the steam. Ensure that the value used corresponds to the correct conditions.
- Wet steam is a mixture of liquid and vapor phases, and its properties are intermediate between those of saturated liquid and saturated vapor.
After entering the values for \( v_g \) and \( x \), click the Calculate Specific Volume button. The result will display the specific volume of wet steam in m³/kg, rounded to four decimal places for precision.