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Numerical Investigation of Solar and Geothermal Powered Desiccant Assisted Air Conditioning in Full-Year Operation
Publikationstyp
Conference Paper
Date Issued
2022-07
Sprache
English
Author(s)
Niemann, Peter
Herausgeber*innen
Institut
Article Number
3234
Citation
7th International High Performance Buildings Conference at Purdue: 3234 (2022)
Contribution to Conference
Publisher Link
Publisher
Purdue University Libraries
In this study, a desiccant assisted air conditioning system relying on geothermal and solar thermal energy is investigated numerically with the help of dynamic annual simulations at different climates. The selected locations are characterized by different climate conditions. A system configuration with almost exclusive use of environmental energy for heating and cooling is proposed. System performance is compared with a conventional air conditioning system of the same size. The results are evaluated according to energetic and ecological criteria. Two approaches are presented which enable a combined assessment of the use of energy and the environmental impact. Operational space requirements for energy provision are taken into account. The investigated system achieves savings in primary energy of up to 71 % compared with a conventional reference process. The analysis of CO2e emissions results in annual savings of up to 70 % (4:7 to). Due to the lower energy density of renewable energy sources, a higher operational land use of the investigated system has to be taken into account. The additional required land use is evaluated using characterizing numbers that are used for air conditioning systems for the first time.