References

Ambient temperature node.

Compute_cycle_error(p_source,h_source,p_sink,h_sink;reltol = 1e-8) * Computes cycle end point mismatch in states - between sink and source.

returns `nothing`

Shows error incase of mismatch

Compute_cycle_error(sol::ODESolution,system::Vector{System};reltol = 1e-8)

CoolPropGasPhaseCheck Checks if state point is Gas. Passes through an assert statement.

CoolPropLiquidPhaseCheck Checks if state point is Liquid. Passes through an assert statement.

Makes node for port connections. This node is Pressure,Enthalpy, Mass flow rate and mass fraction of first fluid (incase of Clapyeron Mixture).

Not for phase change

HeatPort: Variables are Q, tin, Tout

IsentropicCompression(πc, h_in, p_in,fluid,η)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid
  5. η : Isentropic Efficiency

• returns : Outlet enthalpy after isentropic compression

IsentropicCompressionClapeyron(πc, h_in, p_in,z,fluid,η)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid
  5. z : Moles
  6. η : Isentropic Efficiency

• returns : Outlet enthalpy after isentropic compression

IsentropicCompressor(;name,fluid=set_fluid)

A compressor with isentropic Effeciency and pressure ratio as a parameter is chosen.

IsentropicExpander(;name,fluid=set_fluid)

A expander with isentropic Effeciency and pressure ratio as a parameter is chosen.

IsentropicExpansion(πc, h_in, p_in,fluid,η)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid
  5. η : Isentropic Efficiency

• returns : Outlet enthalpy after isentropic expansion

IsentropicExpansionClapeyron(πc, h_in, p_in,z,fluid,η)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid
  5. z : Moles
  6. η : Isentropic Efficiency

• returns : Outlet enthalpy after isentropic expansion

IsobaricHeatSink(;name,fluid = set_fluid)

A heat sink independent of temperature and no pressure drop

• Parameters:

  1. Q_dot : Total heat supplied

• Local Variables:

  1. P : Power
  2. s_in : Inlet Entropy
  3. p_in : Inlet Pressure
  4. T_in : Inlet Temperature
  5. h_in : Inlet Enthalpy
  6. ρ_in : Inlet Density
  7. s_out : Outlet Entropy
  8. p_out : Outlet Pressure
  9. T_out : Outlet Temperature
  10. h_out : Outlet Enthalpy
  11. ρ_out : Outlet Density

• Port Variables:

  1. inport : p and h
  2. outport : p and h

IsobaricHeatSource(;name,fluid = set_fluid)

A heat source independent of temperature and no pressure drop

• Parameters:

  1. Q_dot : Total heat supplied

• Local Variables:

  1. P : Power
  2. s_in : Inlet Entropy
  3. p_in : Inlet Pressure
  4. T_in : Inlet Temperature
  5. h_in : Inlet Enthalpy
  6. ρ_in : Inlet Density
  7. s_out : Outlet Entropy
  8. p_out : Outlet Pressure
  9. T_out : Outlet Temperature
  10. h_out : Outlet Enthalpy
  11. ρ_out : Outlet Density

• Port Variables:

  1. inport : p and h
  2. outport : p and h

IsochoricCompression(πc, h_in, p_in,fluid)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid

• Output -> Outlet enthalpy after isochoric compression

IsochoricCompressionClapeyron(πc, h_in, p_in,z::Array,fluid::EoSModel)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. z : Moles
  5. fluid: Fluid

• Output -> Outlet enthalpy after isochoric compression

IsochoricCompressor(;name,fluid = set_fluid)

A compressor with pressure ratio as a parameter is chosen.

IsochoricCompressor(;name,fluid = set_fluid)

A compressor with pressure ratio as a parameter is chosen.

IsochoricExpansion(πc, h_in, p_in,fluid)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid

• Output -> Outlet enthalpy after isochoric expansion

IsochoricExpansionClapeyron(πc, h_in, p_in,z::Array,fluid::EoSModel)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. z : Moles
  5. fluid: Fluid

• Output -> Outlet enthalpy after isochoric expansion

IsothermalCompression(πc, h_in, p_in,fluid)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid

• Output -> Outlet enthalpy after Isothermal Compression

IsothermalCompressionClapeyron(πc, h_in, p_in,z,fluid::EoSModel)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. z : Moles
  5. fluid: Fluid

• Output -> Outlet enthalpy after Isothermal compression

IsothermalCompressor(;name,fluid = set_fluid)

A compressor with pressure ratio as a parameter is chosen.

IsothermalExpansion(πc, h_in, p_in,fluid)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. fluid: Fluid

• Output -> Outlet enthalpy after Isothermal Expansion

IsothermalExpansionClapeyron(πc, h_in, p_in,z,fluid::EoSModel)

• Arguments:

  1. πc : Pressure Ratio
  2. h_in : Inlet Enthalpy
  3. p_in : Inlet Pressure
  4. z : Moles
  5. fluid: Fluid

• Output -> Outlet enthalpy after Isothermal expansion

MassSink` - Sets the final port input values to the variables. Use as a sink for the simulation.

MassSource - Initilizes cycle start point. Requires initial enthalpy,pressure and Mass flow rate if CoolProp fluid is used else uses enthalpy,pressure, Mass flow rate, and mass fraction of first fluid if Clapeyron Fluid is used.

PT_IsentropicExpansionClapeyron(model::EoSModel,T_in,p_in,z,πc,η)

• Arguments:

  1. πc : Pressure Ratio
  2. T_in : Inlet Temperature
  3. p_in : Inlet Pressure
  4. fluid: Fluid
  5. z : Moles
  6. η : Isentropic Efficiency

• returns : Outlet Temperature after isentropic expansion

A simple Schuman Packed Bed model.

PhaseIdentificationNumeric(model::EoSModel,p,h,z)

For identification of phase of the fluid when using Clapeyron.

returns 0 for liquid, 1 for vapour, 2 for Two phase

Pipe(fluid::AbstractString = set_fluid;name)

pressure drop across pipe using Darcy-Weisbach equation

PipeCoolProp(fluid::AbstractString = set_fluid;name)

pressure drop across pipe using Darcy-Weisbach equation

Pump(;name,fluid = set_fluid)

A pump with isentropic Efficiency and pressure ratio as parameter is chosen. Ensure that inlet to the pump is liquid by checking the internal variable LiquidPhase.

Makes node for port connections. This node is Pressure,Temperature, Mass flow rate and mass fraction of first fluid (incase of Clapyeron Mixture). Use this when the two-phase details of the fluid are not necessary.

SimpleCondensor(;name,fluid=set_fluid)

Condenses the fluid to ΔT_sc below the saturation point. If the fluid is above the critical point then cools it to ΔT_sc below the critical temperature. No pressure drop is considered.

A simple condensor where the HTF inlet and outlet temperature is passed as a parameter. Has a variable is_feas which checks if the fluid passed through violates temperature profile condition or not.

SimpleCondensor(;name,fluid=set_fluid)

Evaporates the fluid to ΔT_sh above the saturation point. If the fluid is above the critical point then cools it to ΔT_sh above the critical temperature. No pressure drop is considered.

A simple evaporator where the HTF inlet and outlet temperature is passed as a parameter. Has a variable is_feas which checks if the fluid passed through violates temperature profile condition or not.

Storage port that connect the storage HTF to the thermal storage. Contains Temperature and mass flow rate of the HTF.

Valve(;name,fluid)

Isenthalpic Valve with pressure ratio as a parameter.

flow can be either :counterflow, :parallelflow, or :crossflow

returns ϵ for the given NTU and C_r and flow type

Cr is the heat capacity ratio, defined as Cr = Cmin / Cmax, where Cmin and Cmax are the minimum and maximum heat capacities of the two fluids in the heat exchanger multiplied with their mass flow rate.

This checks if the temperature profile inside the condensor violates physics or not.

i.e. It will see for a condensor that if the temperature of the working fluid was always more than the temperature of the heat transfer fluid.
if it is feasible then it will return `true` else `false`

This checks if the temperature profile inside the evaporator violates physics or not.

i.e. It will see for a evaporator that if the temperature of the working fluid was always less than the temperature of the heat transfer fluid.
if it is feasible then it will return `true` else `false`

load_fluid(x::AbstractString) - fixes fluid for simulation through components using CoolProp as backend.

load_fluid(x::Clapeyron.EoSModel) - fixes fluid for simulation through components using Clapeyron as backend

mass_to_moles(model::EoSModel,x,mass) : convert mass of fluid to number of moles based on the composition of 1st fluid by mass x

moles_to_mass(model::EoSModel,z) : convert number of moles to mass of fluid.`

plot(sol::SteadyStateSolution,system::Vector{System},names::Vector{String};phase = true,fluid = CarnotCycles.set_fluid,type = :TS) * Plots the phase diagram of the system using the given solution and system. * sol: The solution object containing the results of the simulation. Do not include source and sink in the system. * system: The vector of System objects representing the system. * names: The vector of names for each component in the system. * phase: A boolean indicating whether to plot the phase boundaries or not. Default is true. * fluid: The fluid model to be used for plotting. Default is CarnotCycles.set_fluid. * type: The type of plot to be generated. Can be either :TS or :PH. Default is :TS.

Returns a `Plots.plot` object.

show_all_states(sol::SteadyStateSolution,system::Vector{System},names::Vector{String})

• Arguments:

  1. sol : The solution from the SteadtStateSystem.
  2. system : The vector of components chosen. The first should be MassSource and the last has to be MassSink.
  3. names : The names of the components in the system. Pass it as a vector of strings.

• Returns: Prints the state points of the system in a readable format in the terminal.

Computes the specific isobaric heat capacity of the fluid at the given pressure, temperature and composition J/kg-K.