| Dieser Datensatz ist Bestandteil der ÖKOBAUDAT. |
Process information
| Key Data Set Information | |
| Location | DE |
| Geographical representativeness description | The data set represents the country specific situation in Germany, focusing on the main technologies, the region specific characteristics and / or import statistics. |
| Reference year | 2018 |
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| Use advice for data set | The dataset refers to the manufacture, use and recycling of 1 kg of refrigerant. The dataset can not be used for the estimation of other refrigerants since environmental effects, durability and intended use can be very different. For the calculation of the potential environmental effects through the use of the refrigerant at the building level, the specifications/calculation rules of the respective certification scheme must be followed. For a first estimate the following formulas may be used: I_tot= I_(man.)+ I_use+ I_(disp.) with I_(man.) = I_(A1-A3) × m × a_b/a_r I_use = (I_(A1-A3) × L × a_b ) + (I_B1 × L × a_b ) I_(disp.) = (I_B1 × m × a_b/a_r × E ) + (I_C4 × m × a_b/a_r × (1-E)) + (I_D × m × a_b/a_r × (1-E)) with: I Indicator value of the respective life cycle stage m Mass of the refrigerant [kg] a_b Life time of the building [a] a_r Life time of the refrigerant [a] L Leakage rate [%/a] E Disposal losses [%] Typical values for the required mass m of the coolant in kg per kW nominal cooling capacity can be taken from Table 46 /UBA/ (see figures). Approximate values for the usual service life a_KM, leakage rate L and disposal losses E can be taken from Table 50 /UBA/ (see figures). /UBA/: Environment Federal Office (UBA), Climate-friendly air conditioning (heating and cooling) with natural refrigerants - Concepts for non-residential buildings with server rooms / data centers, 2016 |
| Technical purpose of product or process | The usual purpose is the use in absorption refrigeration machines. |
| Classification number | 8.2.04 |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | This data set has been modeled according to the European Standard EN 15804 for Sustainable Building. Results are depicted in modules that allow the structured expression of results over the entire life cycle. |
| Uncertainty margins | 10 |
| Description | Product system almost completely covered. Good technological, temporal and geographic representativeness. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Data set valid until | 2022 |
| Time representativeness description | annual average |
| Technological representativeness | |
| Technology description including background system | Lithium bromide is used together with water in absorption refrigeration systems, where water is the refrigerant. Depending on the system and boundary conditions, different mixing ratios are used. These must be determined at building level. The production was modeled with lithium hydroxide and hydrobromic acid as basic materials, with hydrobromic acid dominating the LCA. No emissions into the air are expected during the use phase (Module B1, lithium bromide is a non-volatile solid). In the disposal phase any burdens were neglected, e.g. loads for deconstruction, transport to the disposal site. In Module C4 100% landfill incl. pre-treatment of hazardous waste was accounted for (worst-case). No loads or benefits in Module D. |
| Pictogram of technology | |
| Flow diagram(s) or picture(s) | |
Modelling and validation
Administrative information
Environmental indicators