| Units.SI.AbsolutePressure[N + 1] | Pc | | Hot fluid pressure in node i |
| Units.SI.AbsolutePressure[N + 1] | Pf | | Cold fluid pressure in node i |
| Units.SI.MassFlowRate[N] | Qc | | Hot fluid mass flow rate in node i |
| Units.SI.MassFlowRate[N] | Qf | | Cold fluid mass flow rate in node i |
| Units.SI.SpecificEnthalpy[N + 1] | hc | | Hot fluid specific enthalpy in node i |
| Units.SI.SpecificEnthalpy[N + 1] | hf | | Cold fluid specific enthalpy in node i |
| Units.SI.SpecificEnthalpy[N] | hbc | | Hot fluid specific enthalpy at the boundary of node i |
| Units.SI.SpecificEnthalpy[N] | hbf | | Cold fluid specific enthalpy at the boundary of node i |
| Units.SI.Density[N - 1] | rhoc1 | | Hot fluid density in thermal node i |
| Units.SI.Density[N - 1] | rhof1 | | Cold fluid density in thermal node i |
| Units.SI.Density[N] | rhoc2 | | Hot fluid density in hydraulic node i |
| Units.SI.Density[N] | rhof2 | | Cold fluid density in hydraulic node i |
| Units.SI.MassFlowRate[N - 1] | BQc | | Right hand side of the mass balance equation for thermal node i for the hot fluid |
| Units.SI.MassFlowRate[N - 1] | BQf | | Right hand side of the mass balance equation for thermal node i for the cold fluid |
| Units.SI.Power[N - 1] | BHc | | Right hand side of the energy balance equation for thermal node i for the cold fluid |
| Units.SI.Power[N - 1] | BHf | | Right hand side of the energy balance equation for thermal node i for the hot fluid |
| Units.SI.CoefficientOfHeatTransfer[N - 1] | hconv | | Global heat transfer coefficient in thermal node i |
| Units.SI.CoefficientOfHeatTransfer[N - 1] | hconv_c | | Hot fluid heat exchange coefficient in node i |
| Units.SI.CoefficientOfHeatTransfer[N - 1] | hconv_f | | Cold fluid heat exchange coefficient in node i |
| Units.SI.ThermalConductivity[N - 1] | kc1 | | Hot fluid thermal conductivity in thermal node i |
| Units.SI.ThermalConductivity[N - 1] | kf1 | | Cold fluid thermal conductivity in thermal node i |
| Units.SI.ThermalConductivity[N] | kc2 | | Hot fluid thermal conductivity in hydraulic node i |
| Units.SI.ThermalConductivity[N] | kf2 | | Cold fluid thermal conductivity in hydraulic node i |
| Units.SI.DynamicViscosity[N - 1] | muc1 | | Hot fluid dynamic viscosity in thermal node i |
| Units.SI.DynamicViscosity[N - 1] | muf1 | | Cold fluid dynamic viscosity in thermal node i |
| Units.SI.DynamicViscosity[N] | muc2 | | Hot fluid dynamic viscosity in hydraulic node i |
| Units.SI.DynamicViscosity[N] | muf2 | | Cold fluid dynamic viscosity in hydraulic node i |
| Units.SI.SpecificHeatCapacity[N - 1] | cpc1 | | Hot fluid specific heat capacity in thermal node i |
| Units.SI.SpecificHeatCapacity[N - 1] | cpf1 | | Cold fluid specific heat capacity in thermal node i |
| Units.SI.SpecificHeatCapacity[N] | cpc2 | | Hot fluid specific heat capacity in hydraulic node i |
| Units.SI.SpecificHeatCapacity[N] | cpf2 | | Cold fluid specific heat capacity in hydraulic node i |
| Units.SI.ThermalConductivity[N - 1] | lambdac1 | | Hot fluid thermal conductivity in thermal node i |
| Units.SI.ThermalConductivity[N - 1] | lambdaf1 | | Cold fluid thermal conductivity in thermal node i |
| Units.SI.Temperature[N - 1] | Tc1 | | Hot fluid temperature in thermal node i |
| Units.SI.Temperature[N - 1] | Tf1 | | Cold fluid temperature in thermal node i |
| Units.SI.Temperature[N] | Tc2 | | Hot fluid temperature in hydraulic node i |
| Units.SI.Temperature[N] | Tf2 | | Cold fluid temperature in hydraulic node i |
| Units.SI.Area | dS | | Heat exchange surface |
| Units.SI.Power[N - 1] | dW | | Thermal power exchanged between the hot and cold sides in thermal node i |
| Real[N - 1] | qmc1 | | |
| Real[N - 1] | qmf1 | | |
| Real[N] | qmc2 | | |
| Real[N] | qmf2 | | |
| Real[N] | quc | | |
| Real[N] | quf | | |
| Real | M | | |
| ThermoSysPro.Units.SI.PressureDifference[N] | DPc | | Pressure loss of the hot fluid in hydraulic node i |
| ThermoSysPro.Units.SI.PressureDifference[N] | DPf | | Pressure loss of the cold fluid in hydraulic node i |
| Units.SI.Temperature | Tec | | Fluid temperature at the hot inlet |
| Units.SI.Temperature | Tsc | | Fluid temperature at the hot outlet |
| Units.SI.Temperature | Tef | | Fluid temperature at the cold inlet |
| Units.SI.Temperature | Tsf | | Fluid temperature at the cold outlet |
| FluidType | ftype_c | | Hot fluid type |
| FluidType | ftype_f | | Cold fluid type |
| Integer | fluid_c | Integer(ftype_c) | Hot fluid number |
| Integer | fluid_f | Integer(ftype_f) | Cold fluid number |
| ThermoSysPro.Units.SI.MassFraction | Xco2_c | | Hot fluid CO2 mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xco2_f | | Cold fluid CO2 mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xh2o_c | | Hot fluid H2O mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xh2o_f | | Cold fluid H2O mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xo2_c | | Hot fluid O2 mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xo2_f | | Cold fluid O2 mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xso2_c | | Hot fluid SO2 mass fraction |
| ThermoSysPro.Units.SI.MassFraction | Xso2_f | | Cold fluid SO2 mass fraction |
| Real[N] | diff_res_c | | Diffusion resistance in hydraulic node i for the hot fluid |
| Real[N] | diff_res_f | | Diffusion resistance in hydraulic node i for the cold fluid |
| Real | diff_res_t_c | | Total diffusion resistance in the pipe for the hot fluid |
| Real | diff_res_t_f | | Total diffusion resistance in the pipe for the cold fluid |
| Real[N - 1] | diff_res_e_c | | Diffusion resistance at inlet of thermal node i for the hot fluid |
| Real[N - 1] | diff_res_e_f | | Diffusion resistance at inlet of thermal node i for the cold fluid |
| Real[N - 1] | diff_res_s_c | | Diffusion resistance at outlet of thermal node i for the hot fluid |
| Real[N - 1] | diff_res_s_f | | Diffusion resistance at outlet of thermal node i for the cold fluid |
| Units.SI.MassFlowRate[N] | gamma_c | | Total diffusion conductance in hydraulic node i for the hot fluid |
| Units.SI.MassFlowRate[N] | gamma_f | | Total diffusion conductance in hydraulic node i for the cold fluid |
| Units.SI.MassFlowRate[N - 1] | gamma_e_c | | Diffusion conductance at inlet of thermal node i for the hot fluid |
| Units.SI.MassFlowRate[N - 1] | gamma_e_f | | Diffusion conductance at inlet of thermal node i for the cold fluid |
| Units.SI.MassFlowRate[N - 1] | gamma_s_c | | Diffusion conductance at outlet of thermal node i for the hot fluid |
| Units.SI.MassFlowRate[N - 1] | gamma_s_f | | Diffusion conductance at outlet of thermal node i for the cold fluid |
| Units.SI.Power[N - 1] | Je_c | | Thermal power diffusion from inlet of thermal node i for the hot fluid |
| Units.SI.Power[N - 1] | Je_f | | Thermal power diffusion from inlet of thermal node i for the cold fluid |
| Units.SI.Power[N - 1] | Js_c | | Thermal power diffusion from outlet of thermal node i for the hot fluid |
| Units.SI.Power[N - 1] | Js_f | | Thermal power diffusion from outlet of thermal node i for the cold fluid |
| Units.SI.Power[N - 1] | J_c | | Total thermal power diffusion of thermal node i for the hot fluid |
| Units.SI.Power[N - 1] | J_f | | Total thermal power diffusion of thermal node i for the cold fluid |
| Real[N - 1] | re_c | | Value of r(Q/gamma) for inlet of thermal node i for the hot fluid |
| Real[N - 1] | re_f | | Value of r(Q/gamma) for inlet of thermal node i for the cold fluid |
| Real[N - 1] | rs_c | | Value of r(Q/gamma) for outlet of thermal node i for the hot fluid |
| Real[N - 1] | rs_f | | Value of r(Q/gamma) for outlet of thermal node i for the cold fluid |