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Home Forum Solar Thermal DEAP software

DEAP software
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4:34 pm
23 July, 2009


Gerard Brady

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In relation to Dwelling Energy Assessment Procedure Software

What do you input for:

  • Primary energy conversion factor?
  • Carbon emmision factor?

4:54 pm
23 July, 2009


Ecologics

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Hi Gerard,

I'm not too up with the DEAP software but I can guess that primary energy would be the central heating system (e.g. gas/oil)  if dealing with a water heating system

the figures below come from here:

http://www.sei.ie/Your_Building/BER/BER_Assessors/Technical/DEAP/DEAP_2009/DEAP_Manual_Version_3_October_2008_.pdf

Table D2.2 : Efficiency conversion factors
Fuel Net-to-gross conversion factor, f
Natural gas 0.901
LPG (propane or butane) 0.921
Oil (kerosene or gas oil) 0.937

As for the carbon emission factor I guess that would be the CO2 emission figure related to whichever fuel is being used.  Another quote from the document above:

“The CO2 emission and primary energy factors for group heating are taken from Table 8. These relate to delivered heat, e.g. the emission factor is given in units of kilograms of CO2 emitted at the generating plant per kWh of heat delivered to the dwelling.“

hope this helps!
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