O procedimento para estimar as emissões de CO2 no RFEM 6/RSTAB 9 é muito semelhante ao para a estimativa de custos discutida no artigo da base de dados de conhecimento Estimativa e otimização de custos com base no custo mínimo no RFEM 6 .
Given that the Optimization & Costs / CO2 Emission Estimation add-on is activated in the Base Data (Image 2), the first thing to do is to activate the option 'Estimation of CO2 emissions' for the materials in the model (Image 3).
Please note that there are different materials for the foundation slab, basement exterior walls, basement interior walls, ceilings, exterior walls, interior walls, and roof structure (Image 4). Thus, the CO2 emission estimation has to be activated separately for each material.
The advantage is that you do not have to estimate the CO2 emissions for all materials, but only for those that interest you. This way, you can estimate the emissions only for certain parts of the structure (for example, exterior walls, roof structure, ceilings, and so on).
Next, open the 'Estimation of CO2 Emissions' tab of the 'Edit Material' window. The estimation of the CO2 emissions is based on the unit emission for members, surfaces/layers, and solids. Thus, all you have to do is define the unit and the unit emission for the elements of interest. The program then automatically calculates the total emission and displays it as shown in Image 5.
The unit emission can be taken from a database. Even negative emissions can be taken into account, which is interesting for sustainability purposes. For instance, the estimation of the emissions can be used to optimize the model based on minimum CO2 emissions. This way, the program will look for an optimization solution based on wider use of materials with very low or negative global warming potential, so that the condition for minimum CO2 emissions is fulfilled.
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Base de dados de conhecimento
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