Coprocucts: Difference between revisions

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=Allocation=
==Allocation==
==Calculations==
===Calculations===
===Parameters===
====Parameters====
*<math>Out_{value} = Out_a * Out_{cost} \,</math> = Value associated with the main output amount, after the losses. <math>Out_{cost}</math> = {energy value, market value, mass, volume}
*<math>Out_{value} = Out_a * Out_{cost} \,</math> = Value associated with the main output amount, after the losses. <math>Out_{cost}</math> = {energy value, market value, mass, volume}
*<math>Copr_{value} = Copr_a*Copr_{cost} \,</math> = Value associated with the co-product output amount. <math>Copr{cost}</math> = {energy value, market value, mass, volume}
*<math>Copr_{value} = Copr_a*Copr_{cost} \,</math> = Value associated with the co-product output amount. <math>Copr{cost}</math> = {energy value, market value, mass, volume}
*<math>ee \,</math> = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )
*<math>ee \,</math> = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )
*<math>inputs \,</math> = Energy and Emissions for all the inputs of the current process ( in Joules and Grams per unit of Output for the current process )
*<math>inputs \,</math> = Energy and Emissions for all the inputs of the current process ( in Joules and Grams per unit of Output for the current process )
===Calculations===
====Calculations====
For each allocation method it will be the same idea :
For each allocation method it will be the same idea :
*We convert the amount given for the co product into a quantity of energy, mass, market value or volume depending on the allocation method chosen.
*We convert the amount given for the co product into a quantity of energy, mass, market value or volume depending on the allocation method chosen.
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Note : <math>Out_{value} \,</math> and <math>Copr_{value} \,</math> are in the same unit, they can be both in Joules, Grams, Cubic Meter or Dollar depending of the allocation method chosen.
Note : <math>Out_{value} \,</math> and <math>Copr_{value} \,</math> are in the same unit, they can be both in Joules, Grams, Cubic Meter or Dollar depending of the allocation method chosen.


=Displacement=
==Displacement==
==Calculations==
===Calculations===
===Parameters===
====Parameters====
*<math>MixEE_{mpm} \,</math> = conventional [[Materials_Calculations#Mix|material mix]] energy and emissions, which are the necessary energy and emissions associated to the production of that material for the specified purpose for this specific mix.
*<math>MixEE_{mpm} \,</math> = conventional [[Materials_Calculations#Mix|material mix]] energy and emissions, which are the necessary energy and emissions associated to the production of that material for the specified purpose for this specific mix.
*<math>S_{mpm} \,</math> = the share of the conventional material purpose mix displaced.
*<math>S_{mpm} \,</math> = the share of the conventional material purpose mix displaced.
*<math>ee \,</math> = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )
*<math>ee \,</math> = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )


===Calculations===
====Calculations====
*For each conventional material mix defined in the displacement ratios we grab the mix energy and emissions. We also grab at the same time the conventional material share.
*For each conventional material mix defined in the displacement ratios we grab the mix energy and emissions. We also grab at the same time the conventional material share.
*We add to the co product energy and emissions the amount displaced, by each conventional material displaced :  
*We add to the co product energy and emissions the amount displaced, by each conventional material displaced :  
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===XML Example===
====XML Example====


This example is extracted from the process [[600|Dry Mill Ethanol Production (US Industry Average)]]. It shows a coproduct which is calculated as a displacement. But if the user wants to change the method and calculate it with the allocation method, the different options which will be shown to the user are also defined.
This example is extracted from the process [[600|Dry Mill Ethanol Production (US Industry Average)]]. It shows a coproduct which is calculated as a displacement. But if the user wants to change the method and calculate it with the allocation method, the different options which will be shown to the user are also defined.
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</source>
</source>


=Common Calculations=
==Common Calculations==
==Parameters==
===Parameters===
*<math>S_{copr}\,</math> = share of the coproduct
*<math>S_{copr}\,</math> = share of the coproduct
*<math>ee \,</math> = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )
*<math>ee \,</math> = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )
==Calculations==
===Calculations===
At the end of the calculation process for one of this co products we are doing a last operation which is multiplying the <math>ee \,</math> by a share.
At the end of the calculation process for one of this co products we are doing a last operation which is multiplying the <math>ee \,</math> by a share.
This share can be used to define many co products and assign them shares. So the last operation will be :
This share can be used to define many co products and assign them shares. So the last operation will be :
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==Internal Links==
===Internal Links===
*[[Co-Products| Coproducts Editor]]
*[[Co-Products| Coproducts Editor]]

Revision as of 18:48, March 21, 2012

Allocation

Calculations

Parameters

  • = Value associated with the main output amount, after the losses. = {energy value, market value, mass, volume}
  • = Value associated with the co-product output amount. = {energy value, market value, mass, volume}
  • = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )
  • = Energy and Emissions for all the inputs of the current process ( in Joules and Grams per unit of Output for the current process )

Calculations

For each allocation method it will be the same idea :

  • We convert the amount given for the co product into a quantity of energy, mass, market value or volume depending on the allocation method chosen.
  • We grab the amount after losses of the main output
  • We calculate the allocation ratio which will be :
  • We calculate the energy and emissions associated to that co product :

Note : and are in the same unit, they can be both in Joules, Grams, Cubic Meter or Dollar depending of the allocation method chosen.

Displacement

Calculations

Parameters

  • = conventional material mix energy and emissions, which are the necessary energy and emissions associated to the production of that material for the specified purpose for this specific mix.
  • = the share of the conventional material purpose mix displaced.
  • = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )

Calculations

  • For each conventional material mix defined in the displacement ratios we grab the mix energy and emissions. We also grab at the same time the conventional material share.
  • We add to the co product energy and emissions the amount displaced, by each conventional material displaced :


XML Example

This example is extracted from the process Dry Mill Ethanol Production (US Industry Average). It shows a coproduct which is calculated as a displacement. But if the user wants to change the method and calculate it with the allocation method, the different options which will be shown to the user are also defined.

<coproduct ref="116" method="displacement" amount="[dgs_params!A3];0;True;pounds">
  <allocation value="energy" >
    <option>energy</option>
    <option>market</option>
    <option>mass</option>
  </allocation>
  <conventional_products >
    <product ref="75" purpose="stationary" mix="0" ratio="[composite_displacement_ratios!B3];0;True;percentage"/>
    <product ref="117" purpose="stationary" mix="0" ratio="[composite_displacement_ratios!C3];0;True;percentage"/>
    <product ref="91" purpose="stationary" mix="0" ratio="[composite_displacement_ratios!D3];0;True;percentage"/>
  </conventional_products>
</coproduct>

Common Calculations

Parameters

  • = share of the coproduct
  • = Energy and Emissions associated to that co product ( in Joules and Grams per unit of Output for the current process )

Calculations

At the end of the calculation process for one of this co products we are doing a last operation which is multiplying the by a share. This share can be used to define many co products and assign them shares. So the last operation will be :


Internal Links