NERSim

The NERSim program is designed to simulate the technological processes of oil and gas processing based on the Peng-Robinson and Soave-Redlich-Kwong equations. The program database contains data for more than 1600 individual substances, fractional composition data by ITK, ASTM D86, ASTM D1160, ASTM D2887 can also be used. The program allows you to calculate the flow charts constructed by combining elementary processes. With its help you can solve a wide range of tasks. The basic calculations that can be performed are presented below. Calculation of the phase equilibrium of vapor-liquid, including:

• Calculation of the saturation temperature of steam;
• Calculation of steam saturation pressure;
• Calculation of the saturation temperature of the liquid;
• Calculation of the saturation pressure of the liquid;
• Determination of the fraction of distillation for given temperature and pressure;
• Determination of temperature for specified pressures and distillation fraction;
• Determination of pressure at specified temperature and fraction of distillation;
• Determination of the temperature and fraction of distillation ensuring the production of steam or liquid of the required composition at a given pressure;
• Determination of pressure and fraction of distillation ensuring the production of steam or liquid of the desired composition at a given temperature.

Calculation of thermophysical properties of individual substances and their mixtures:

• Calculation of the enthalpy of vapor and liquid;
• Calculation of the isobaric heat capacity of vapor and liquid;
• Calculation of isochoric heat capacity;
• The calculation of the density of vapor and liquid;
• Calculation of the viscosity of vapor and liquid;
• Calculation of the thermal conductivity of vapor and liquid;
• Calculation of surface tension;
• Calculation of the thermophysical properties of water and water vapor according to the international system of equations for the thermodynamic properties of water and water vapor, provided for industrial calculations Formulations IF97.

Calculation of thermophysical and physicochemical properties of oil components:

• Prognozirovanie behavior of the curve fractional composition, obtained by various methods (ASTM D86, ASTM D1160, ASTM D2887, TBP) - the original method developed by the team NERSim;
• Calculation of fractional composition of mixed fuels;
• Calculation of molar mass for oil components;
• Density calculation for oil components;
• Calculation of the average boiling point for petroleum components;
• Calculation of ideal gas enthalpy for oil components;
• Calculation of critical parameters for oil components;
• Calculation of viscosity, thermal conductivity, surface tension for oil components.

Calculation of technological and logical elements:

• Separator;
• Pump;
• Compressor;
• The valve (throttle);
• Heat exchanger;
• Adder;
• Divisor.

Construction of phase diagrams:

• Phase equilibrium diagrams T-X-Y, P-X-Y, Y des.txt en_metadesc.txt en_name.txt log.txt meta_desc.txt name.txt ru_des.txt ru_name.txt tmpdesc2.txt tmpdesc3.txt tmpdesc4.txt tmpdesc5.txt tmpdesc6.txt tmpdesc7.txt tmpdesc.txt tmpresult.txt tmptrans.txt translate_product.sh transresult.txt -X for binary systems;
• Phase equilibrium diagram P-T;
• Evaporation curves (for the order of heat exchange equipment).

Evaporation curves (for the order of heat exchange equipment).