2026-04-17T04:28:10Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/3979132026-01-28T03:46:44Zcom_2072_1033col_2072_452950

urn:hdl:2117/397913 Use of exhaled CO2 for crop growth in urban environments Ruiz de Alegría Sala, Alba Ruana Jornet, Fermin Canals Casals, Lluc Macarulla Martí, Marcel Àrees temàtiques de la UPC::Edificació::Instal·lacions i acondicionament d'edificis Àrees temàtiques de la UPC::Urbanisme Urban agriculture Air quality IAQ Urban agriculture HVAC Agricultura urbana Aire--Qualitat Aiming for synergies between indoor air quality in high-occupancy buildings and urban agriculture, this research investigates the capacity to enhance crop growth based on the generation of CO2 from occupants' exhalation in university classrooms. Accordingly, the CO2 concentrations of eight campuses classrooms of the Polytechnic University of Catalonia have been analyzed over a period of one year. The data have been obtained from sensors installed through the climate action strategy designed by the university and are available through SIRENA platform. Results show great potential in the utilization of exhaled CO2 thanks to the generation during school periods. However, the profiles obtained show discontinuous CO2 availability throughout the year and during the hours of maximum photosynthetic activity of plants. Moreover, the measured CO2 levels exceed, on many occasions, the recommended limit for crop growth. The authors also acknowledge the financial support from the Spanish Ministry of Science and Innovation (MICINN) for the financial support of the research projects: MOVE4EDU "Modular ventilation system integrated with urban food production in educational b1236 1. Introduction Indoor air quality (IAQ) is a crucial aspect of creating safe and comfortable environments, especially in educational Postprint (published version) 2023 Conference lecture http://dspace.aeipro.com/xmlui/handle/123456789/3436 http://creativecommons.org/licenses/by-nc-nd/4.0/ Open Access Attribution-NonCommercial-NoDerivatives 4.0 International