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general:projections:calculation_documentation [2021/04/23 08:27] – created brauns | general:projections:calculation_documentation [2024/02/12 09:08] (current) – brauns | ||
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- | ===== Calculation | + | ===== Calculation |
- | For its national emission projections, | + | For its national emission projections, |
- | Deviating from this comprehensive projection of activity data, the transport emissions are calculated | + | In the scenario “with measures” (WM), for the majority |
- | The activity | + | Deviating from this comprehensive projection of activity |
- | The NMVOC emissions from NFR sector 2.D.3, containing emissions from solvent and solvent-containing product use and their manufacturing, | + | The projection for the agricultural sector (NFR 3) was created |
- | Starting from these activity data set as a basis, future emission factors for air pollutants were modelled for each of the policies and measures individually. | + | For dairy cows, the proportion of cows kept in tied housing systems |
- | Data basis of the emission projections calculation is the inventory | + | Due to the further implementation |
- | Because | + | The proportion of the share of liquid manure spread using injection |
- | __Table 1: Fuel-specific conversion factors | + | The use of manure in biogas plants is statically updated based on the year 2021. An increase in the amount of slurry in biogas plants is part of the WAM scenario. The use of energy crops in biogas plants was assumed to be declining, as described in the Thünen Baseline 2022-2032. The quantities of the Thünen baseline reported |
- | ^ Pollutant ^ Fuel | + | |
- | | NO< | + | |
- | |::: | Lignite | + | |
- | |::: | Heavy fuel oil | 3.39 | + | |
- | |::: | Light heating oil | 3.49 | + | |
- | |::: | Natural gas | 3.57 | + | |
- | |::: | Natural gas (gas turbines) | + | |
- | |::: | Heavy fuel oil (gas turbines) | 3.53 | + | |
- | | SO< | + | |
- | |::: | Lignite | + | |
- | |::: | Heavy fuel oil | 3.39 | + | |
- | |::: | Light heating oil | 3.49 | + | |
- | |::: | Natural gas | 4.00 | + | |
- | |::: | Natural gas (gas turbines) | + | |
- | |::: | Heavy fuel oil (gas turbines) | 3.53 | + | |
- | | TSP | Hard coal | + | |
- | |::: | Lignite | + | |
- | |::: | Heavy fuel oil | 3.39 | + | |
- | |::: | Light heating oil | + | |
- | |::: | Natural gas | 3.24 | + | |
- | |::: | Natural gas (gas turbines) | + | |
- | |::: | Heavy fuel oil (gas turbines) | 3.50 | + | |
- | Furthermore, | + | With the assumptions described above, a significant reduction |
+ | * For farms falling in the category ‚G‘ (according to Annex 1 of the 4<sup>th</sup> BImSchV for keeping or rearing of sows, fattening pigs, piglets, laying hens, pullets and broilers) it was assumed that the current status of air scrubber systems for pigs remains constant (with a reduction performance of 80 %) and that the current status for poultry increases slightly (with a reduction performance of 70 %). For almost the entire remaining stock of the respective animal category in G-systems, it was assumed that 40 % of the emissions in the barn are reduced by further system-integrated measures. This can be achieved, for example, with a less effective air scrubber system or other technical measures in animal housing. These assumptions are conservative since they only reflect the minimum requirements with regard to emission | ||
+ | |||
+ | * For 30 % of the animal stocks falling into the category ‚V‘ (according to Annex 1 of the 4<sup>th</sup> BImSchV for keeping or rearing of sows, fattening pigs, piglets, laying hens, pullets and broilers), it was assumed that these reduce emissions by 40 % through system-integrated measures in animal housing. As explained above, this is also a conservative assumption (e.g. with regard to retrofitting and the new construction of animal-friendly husbandry systems) in order not to overestimate the emission reduction. | ||
+ | |||
+ | * For 80 % of the slurry from G and V systems, it was assumed | ||
+ | |||
+ | The NMVOC emissions from NFR sector 2.D.3, containing emissions from solvent and solvent-containing product use and their manufacturing, | ||
+ | |||
+ | Starting | ||
+ | |||
+ | |||
+ | Data basis of the emission projections calculation is the inventory | ||
+ | |||
+ | Because the limit values in the BImSchVs | ||
+ | |||
+ | |||
+ | __Table 1: Fuel-specific conversion factors for air pollutants according to Rentz et al. (2002)__ | ||
+ | ^ Pollutant ^ | ||
+ | | NO< | ||
+ | |::: | Lignite | ||
+ | |::: | Heavy fuel oil | 3.39 | ||
+ | |::: | Light heating oil | 3.49 | ||
+ | |::: | Natural gas | 3.57 | ||
+ | |::: | Natural gas (gas turbines) | ||
+ | |::: | Heavy fuel oil (gas turbines) | 3.53 | ||
+ | Furthermore, | ||