Class: Pulo::Steam::Boiler

Inherits:
Object
  • Object
show all
Defined in:
lib/pulo/machine/steam/boiler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(feedwater_pressure: nil, blowdown_rate: nil, combustion_efficiency: nil, steam_pressure: nil, steam_temperature: nil, fuel_power: nil, steam_massflow: nil, feedwater_massflow: nil) ⇒ Boiler

Returns a new instance of Boiler.



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# File 'lib/pulo/machine/steam/boiler.rb', line 10

def initialize(feedwater_pressure: nil,blowdown_rate: nil,combustion_efficiency:nil,steam_pressure: nil,
               steam_temperature: nil,fuel_power: nil,
               steam_massflow: nil,feedwater_massflow: nil)

  raise "Need all parameters" unless
      feedwater_pressure && blowdown_rate &&
      combustion_efficiency && steam_pressure &&
      (steam_temperature || fuel_power) &&
      (steam_massflow || feedwater_massflow)

  #steam_massflow=steam_massflow
  @blowdown_rate=blowdown_rate
  @combustion_efficiency=combustion_efficiency
  @steam_temperature=steam_temperature
  @feedwater_pressure=feedwater_pressure
  @steam_pressure=steam_pressure
  @fuel_power=fuel_power
  #feedwater_massflow=feedwater_massflow

  @blowdown=WaterSteam.new(pressure: @steam_pressure, quality: Dimensionless.new(0))
  if steam_massflow
    feedwater_massflow=steam_massflow/(1-@blowdown_rate)
  else
    steam_massflow=feedwater_massflow*(1-@blowdown_rate)
  end

  @blowdown.mass_flow=feedwater_massflow*@blowdown_rate
  #@[email protected]_enthalpy*@blowdown_massflow

  @feedwater=WaterSteam.new(pressure: @feedwater_pressure, quality: Dimensionless.new(0))
  @feedwater.mass_flow=feedwater_massflow
  #@[email protected]_enthalpy*@feedwater_massflow


  if @steam_temperature
    @steam=WaterSteam.new(pressure: @steam_pressure, temperature: @steam_temperature)
    @steam.mass_flow=steam_massflow
    #@[email protected]_enthalpy*@steam_massflow
    @boiler_power=@steam.energy_flow + @blowdown.energy_flow - @feedwater.energy_flow
    @fuel_power=@boiler_power/@combustion_efficiency
  else
    @boiler_power=@fuel_power*@combustion_efficiency
    steam_power=@boiler_power-@blowdown.energy_flow+@feedwater.energy_flow
    specific_enthalpy=steam_power/steam_massflow
    @steam=WaterSteam.new(pressure: @steam_pressure, specific_enthalpy: specific_enthalpy)
    @steam.mass_flow=steam_massflow
    raise "Boiler not boiling!" if @steam.if97_region=="1"
  end
end

Instance Attribute Details

#blowdown ⇒ Object (readonly)

Returns the value of attribute blowdown.



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# File 'lib/pulo/machine/steam/boiler.rb', line 6

def blowdown
  @blowdown
end

#blowdown_rate ⇒ Object (readonly)

Returns the value of attribute blowdown_rate.



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# File 'lib/pulo/machine/steam/boiler.rb', line 7

def blowdown_rate
  @blowdown_rate
end

#boiler_power ⇒ Object (readonly)

Returns the value of attribute boiler_power.



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# File 'lib/pulo/machine/steam/boiler.rb', line 8

def boiler_power
  @boiler_power
end

#combustion_efficiency ⇒ Object (readonly)

Returns the value of attribute combustion_efficiency.



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# File 'lib/pulo/machine/steam/boiler.rb', line 7

def combustion_efficiency
  @combustion_efficiency
end

#feedwater ⇒ Object (readonly)

Returns the value of attribute feedwater.



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# File 'lib/pulo/machine/steam/boiler.rb', line 6

def feedwater
  @feedwater
end

#fuel_power ⇒ Object (readonly)

Returns the value of attribute fuel_power.



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# File 'lib/pulo/machine/steam/boiler.rb', line 8

def fuel_power
  @fuel_power
end

#steam ⇒ Object (readonly)

Returns the value of attribute steam.



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# File 'lib/pulo/machine/steam/boiler.rb', line 6

def steam
  @steam
end