Enthalpy entropy
Reference data 과 engineering information about enthalpy entropy for thermodynamics applications.
enthalpyentropy계산기데이터 표
Overview
Enthalpy () and entropy () are fundamental thermodynamic properties used to analyze energy transfer and process efficiency.
Key Formulas
Enthalpy
Total heat content of a system.
Entropy
Measure of irreversibility.
Gibbs Free Energy
Maximum non-expansion work.
Helmholtz Free Energy
Maximum work at constant volume.
Variables
| Symbol | Description | Unit |
|---|---|---|
| Enthalpy | J | |
| Internal energy | J | |
| Pressure | Pa | |
| Volume | m³ | |
| Entropy | J/K | |
| Gibbs free energy | J | |
| Temperature | K |
Reference Data
18 행
Temperature(°C) | Pressure(MPa) | Enthalpy (h)(kJ/kg) | Entropy (s)(kJ/(kg·K)) | Phase |
|---|---|---|---|---|
| 100 | 0.1013 | 2676.1 | 7.3549 | Saturated vapor |
| 150 | 0.4762 | 2746.6 | 6.8372 | Saturated vapor |
| 200 | 1.5549 | 2793.2 | 6.4323 | Saturated vapor |
| 250 | 3.9762 | 2803.2 | 6.0747 | Saturated vapor |
| 300 | 8.5879 | 2751 | 5.7078 | Saturated vapor |
| 350 | 16.529 | 2567.6 | 5.2158 | Saturated vapor |
| 374 | 22.064 | 2099.3 | 4.4298 | Critical point |
| 200 | 0.1 | 2875.3 | 7.8343 | Superheated |
| 300 | 0.1 | 3074.5 | 8.2158 | Superheated |
| 200 | 1 | 2827.9 | 6.694 | Superheated |
| 300 | 1 | 3051.2 | 7.1229 | Superheated |
| 400 | 1 | 3264.5 | 7.4651 | Superheated |
| 300 | 5 | 2924.5 | 6.2084 | Superheated |
| 400 | 5 | 3195.7 | 6.6459 | Superheated |
| 500 | 5 | 3433.8 | 6.9759 | Superheated |
| 400 | 10 | 3097.5 | 6.2141 | Superheated |
| 500 | 10 | 3375.1 | 6.5995 | Superheated |
| 600 | 10 | 3625.8 | 6.9029 | Superheated |
출처: engineeringtoolbox.com