Gas - Compressible
Natural Gas, Nitrogen, Hydrogen 등의 압축성 기체의 물성을 계산하기 위해 다음 코드를 사용합니다:
- GERG2008 by TorrensJoaquin
GERG2008은 천연가스 및 기타 혼합가스의 물성을 계산하기 위한 국제 표준 방정식입니다. 이 모듈은 밀도, 압축계수, 엔탈피, 열용량 등 다양한 열역학적 물성을 계산할 수 있으며, 특히 천연가스, 수소, 질소와 같은 산업용 가스의 정확한 물성 계산에 적합합니다.
Operating Ranges
- Pressure: 0 to 350 bara
- Temperature: -183°C to 277°C
- Valid ranges may vary depending on the gas mixture composition
Gas Functions
Abbr. | INPUT Unit | RESULT Unit | Function Description |
---|---|---|---|
GasRHO_PT | pressure, bara temperature, °C fluid name | kg/m3 | Get Density at pressure & Temperature |
GasMM_PT | pressure, bara temperature, °C fluid name | g/mol | Get Molar Mass at pressure & Temperature |
GasZ_PT | pressure, bara temperature, °C fluid name | - | Get Compressibility at pressure & Temperature |
GasCV_PT | pressure, bara temperature, °C fluid name | J/(mol-K) | Get Isochoric Heat Capacity at pressure & Temperature |
GasCP_PT | pressure, bara temperature, °C fluid name | J/(mol-K) | Get Isobaric Heat Capacity at pressure & Temperature |
GasJT_PT | pressure, bara temperature, °C fluid name | K/kPa | Get Joule Thomson at pressure & Temperature |
GasW_PT | pressure, bara temperature, °C fluid name | m/s | Get Speed of Sound at pressure & Temperature |
GasK_PT | pressure, bara temperature, °C fluid name | - | Get Isentropic exponent at pressure & Temperature |
GasLHVmass | fluid name [temperature, °C] | kJ/kg | Get Lower Heating Value |
GasHHVmass | fluid name [temperature, °C] | kJ/kg | Get Higher Heating Value |
Fluid Name Format
- The fluid name should be provided as a string specifying the gas mixture composition
- Example format: “CH4:0.94,C2H6:0.05,CO2:0.01” represents a mixture of:
- 94% Methane (CH4)
- 5% Ethane (C2H6)
- 1% Carbon Dioxide (CO2)
- Components must sum to 1.0 (100%)
- Supported components include: CH4 (Methane), C2H6 (Ethane), C3H8 (Propane), N2 (Nitrogen), CO2 (Carbon Dioxide), and others per GERG2008 standard
Notes
- Temperature is optional parameter for LHV and HHV calculations
- Temperature defaults to 25°C if not provided for LHV and HHV
- Temperature must be provided for all other functions