Ammonia (R717)

This data set has been modeled according to the European Standard EN 15804+A2 for Sustainable Building. Results are depicted in modules that allow the structured expression of results over the entire life cycle.

The production (modules A1-A3) of the refrigerant takes place in the so-called Haber-Bosch process. Here, hydrogen and nitrogen are converted to ammonia using a catalyst at high temperature and pressure. Energy consumption dominates the production phase (modules A1-A3). The by-product is CO2. An economic allocation was applied for the distribution of environmental burdens (NH3 85%, CO2 15%). In module B1, the escape of 1 kg of refrigerant into the air was accounted for. The values of module B1 can be used for both the usage phase (e.g., leakage) and the disposal phase (module C1 disposal losses). Scenarios for use and disposal must be defined at the building level (see field "Use advice for data set"). In the disposal phase (C-modules), any burdens due to removal (usually extraction by means of compressed air in special container systems), transport to the disposal or recycling company, as well as the loads for chemical analysis (e.g. gas chromatography) were neglected. Disposal losses (emissions into the air) must be determined at building level (see above). In module D, 100% material recycling was accounted for. If properly extracted, the refrigerant can be reused directly (without treatment) with the appropriate purity.

The usual purpose is the use in refrigeration systems > 100 kW.