000118296 001__ 118296
000118296 005__ 20240319081022.0
000118296 0247_ $$2doi$$a10.1016/j.atmosenv.2022.119176
000118296 0248_ $$2sideral$$a129635
000118296 037__ $$aART-2022-129635
000118296 041__ $$aeng
000118296 100__ $$0(orcid)0000-0003-1337-0310$$aMuelas, Á.$$uUniversidad de Zaragoza
000118296 245__ $$aAnalysis of different ventilation strategies and CO2 distribution in a naturally ventilated classroom
000118296 260__ $$c2022
000118296 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118296 5203_ $$aCO2 monitoring has proven to be an effective and affordable way of controlling air ventilation rates, a paramount task for minimizing airborne contagions in indoor shared spaces. In this work, the CO2 distribution in a naturally-ventilated classroom has been thoroughly characterized, gaining information not only on the effectiveness of diverse ventilation strategies but also on the expected differences between CO2 values when varying the sampling location within the room. The results confirm that an adequate renewal of the air in the room requires the use of cross-ventilation, with openings in different walls. Furthermore, it was found that ventilation is optimized, for a given total opening area, when the openings are distributed as much as possible among different windows. For most of the studied conditions, a global windows opening area of 1.24 m2 with an open door was typically enough to yield CO2 concentrations below 700 ppm. The CO2 readings displayed a noticeable and consistent dependency on the sampling height, with below-average values at 0.75 m, the highest concentrations at 1.5 m, and levels close to the average when sampling at a height of 2.2 m. For a given height, the influence of the sampling location within the room was weaker, and more dependent on the specific ventilation strategy applied. However, the tests consistently showed CO2 records significantly lower for sensors installed on the walls. Besides a detailed spatial and temporal characterization of the ventilation process under different ventilation strategies, these results are thought to provide useful and novel information for a judicious placement of CO2 monitoring systems.
000118296 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000118296 590__ $$a5.0$$b2022
000118296 592__ $$a1.347$$b2022
000118296 591__ $$aMETEOROLOGY & ATMOSPHERIC SCIENCES$$b21 / 94 = 0.223$$c2022$$dQ1$$eT1
000118296 593__ $$aEnvironmental Science (miscellaneous)$$c2022$$dQ1
000118296 591__ $$aENVIRONMENTAL SCIENCES$$b78 / 275 = 0.284$$c2022$$dQ2$$eT1
000118296 593__ $$aAtmospheric Science$$c2022$$dQ1
000118296 594__ $$a10.3$$b2022
000118296 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118296 700__ $$0(orcid)0000-0001-9446-8461$$aRemacha, P.$$uUniversidad de Zaragoza
000118296 700__ $$aPina, A.
000118296 700__ $$aTizné, E.$$uUniversidad de Zaragoza
000118296 700__ $$aEl-Kadmiri, S.
000118296 700__ $$aRuiz, A.
000118296 700__ $$aAranda, D.
000118296 700__ $$0(orcid)0000-0003-2863-4681$$aBallester, J.$$uUniversidad de Zaragoza
000118296 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000118296 773__ $$g283 (2022), 119176 [10 pp.]$$pAtmos. environ. (1994)$$tAtmospheric Environment$$x1352-2310
000118296 8564_ $$s3820513$$uhttps://zaguan.unizar.es/record/118296/files/texto_completo.pdf$$yVersión publicada
000118296 8564_ $$s2162297$$uhttps://zaguan.unizar.es/record/118296/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118296 909CO $$ooai:zaguan.unizar.es:118296$$particulos$$pdriver
000118296 951__ $$a2024-03-18-16:19:24
000118296 980__ $$aARTICLE