Datum
2024-01-17Metadata
Zur Langanzeige
Aufsatz
Solar driven liquid desiccant dehumidification system: Measurements and annual system simulations
Zusammenfassung
Liquid desiccant air conditioning (LDAC) systems are used for dehumidification of air to low dew point temperatures. In the presented study a TRNSYS model of a LDAC unit is developed and validated with laboratory measurements. This model is coupled with a solar thermal system that provides heating water for the regeneration process. With this model dynamic annual system simulations can be carried out to simulate the dehumidification of a building. The solar fraction is evaluated for various infiltration rates of the building and solar collector areas with an internally cooled as well as an adiabatic absorption process. The simulation results reveal that high solar fractions of 70 % to 81 % can be achieved when dimensioning the solar thermal system to cover the regeneration heat demand on a good summer day. This is due to the good correlation of solar irradiance and dehumidification load. Without internal cooling of the absorption process (adiabatic conditions), the solar fraction is reduced by about 10 percent points for the same size and operating conditions.
Zitierform
In: Applied Thermal Engineering 242 (2024-01-17) eissn:1359-4311Förderhinweis
Gefördert im Rahmen des Projekts DEALZitieren
@article{doi:10.17170/kobra-202402099551,
author={Mandow, Wael and Micus, Felix and Völker, Lisa and Fleig, Daniel and Jordan, Ulrike},
title={Solar driven liquid desiccant dehumidification system: Measurements and annual system simulations},
journal={Applied Thermal Engineering},
year={2024}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2024$n2024 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15447 3000 Mandow, Wael 3010 Micus, Felix 3010 Völker, Lisa 3010 Fleig, Daniel 3010 Jordan, Ulrike 4000 Solar driven liquid desiccant dehumidification system: Measurements and annual system simulations / Mandow, Wael 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15447=x R 4204 \$dAufsatz 4170 5550 {{Solartechnik}} 5550 {{System}} 5550 {{Regenerator}} 5550 {{Entfeuchten}} 7136 ##0##http://hdl.handle.net/123456789/15447
2024-02-09T09:03:19Z 2024-02-09T09:03:19Z 2024-01-17 doi:10.17170/kobra-202402099551 http://hdl.handle.net/123456789/15447 Gefördert im Rahmen des Projekts DEAL eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ Liquid desiccant Dehumidification Regeneration Solar heat TRNSYS 620 Solar driven liquid desiccant dehumidification system: Measurements and annual system simulations Aufsatz Liquid desiccant air conditioning (LDAC) systems are used for dehumidification of air to low dew point temperatures. In the presented study a TRNSYS model of a LDAC unit is developed and validated with laboratory measurements. This model is coupled with a solar thermal system that provides heating water for the regeneration process. With this model dynamic annual system simulations can be carried out to simulate the dehumidification of a building. The solar fraction is evaluated for various infiltration rates of the building and solar collector areas with an internally cooled as well as an adiabatic absorption process. The simulation results reveal that high solar fractions of 70 % to 81 % can be achieved when dimensioning the solar thermal system to cover the regeneration heat demand on a good summer day. This is due to the good correlation of solar irradiance and dehumidification load. Without internal cooling of the absorption process (adiabatic conditions), the solar fraction is reduced by about 10 percent points for the same size and operating conditions. open access Mandow, Wael Micus, Felix Völker, Lisa Fleig, Daniel Jordan, Ulrike doi:10.1016/j.applthermaleng.2024.122485 Solartechnik System Regenerator Entfeuchten publishedVersion eissn:1359-4311 Applied Thermal Engineering 242 false 122485
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