Enthalpy Superheated Steam
Reference data and engineering information about enthalpy superheated steam for thermodynamics applications.
enthalpysuperheatedsteam
Overview
Engineering reference data for Enthalpy Superheated Steam in thermodynamics.
Key Formulas
First Law
Energy is conserved — heat added minus work done.
Ideal Gas Law
Relates pressure, volume, and temperature of an ideal gas.
Heat Transfer
Sensible heat transfer.
Carnot Efficiency
Maximum efficiency between two temperatures.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Internal energy | J | |
| Heat | J | |
| Work | J | |
| Pressure | Pa | |
| Volume | m³ | |
| Temperature | K |
Enthalpy Data Table
The following table provides enthalpy values for superheated steam across a range of pressures and temperatures, referenced above the saturation temperature for each pressure.
4 rows
Pressure(bar) | Saturation Temp.(°C) | 200(kJ/kg) | 250(kJ/kg) | 300(kJ/kg) | 350(kJ/kg) | 400(kJ/kg) | 450(kJ/kg) |
|---|---|---|---|---|---|---|---|
| 15 | 198.3 | 2792 | 2796 | 2925 | 3039 | 3148 | 3256 |
| 20 | 212.4 | — | 2799 | 2904 | 3025 | 3138 | 3248 |
| 30 | 233.8 | — | — | 2858 | 2995 | 3117 | 3231 |
| 40 | 250.3 | — | — | — | 2963 | 3094 | 3214 |
Source: engineeringtoolbox.com
Note: Values are presented in kJ/kg. A blank cell means the specified temperature is not applicable as it lies at or below the saturation temperature for that pressure.