Numerical and Experimental Study on the Indoor Climate in a Classroom with Mixing and Displacement Air Distribution Methods

Weixin Zhao*, Panu Mustakallio, Sami Lestinen, Simo Kilpelainen, Juha Jokisalo, Risto Kosonen

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

10 Lataukset (Pure)

Abstrakti

One main challenge of air distribution in classrooms is to guarantee ventilation performance under different usage conditions. In this study, the indoor climate in summer and winter conditions with different occupancy densities in the classroom is presented. Thermal condition measurements of a half-size classroom were performed in a test room with four air suppliers: wall-grilles, ceiling diffusers, perforated duct diffusers, and displacement ventilation. Those measured data were used for CFD validation of the whole classroom. With CFD simulations, indoor climate parameters with different air diffusers are compared in summer and winter conditions. The results show that displacement ventilation gives the best performance in the occupied zone. The air change efficiency can be reached with displacement ventilation of 1.4 and of only 1 with the other three air diffusers. The air velocities were reasonably low (

AlkuperäiskieliEnglanti
Artikkeli1314
Sivumäärä16
JulkaisuBuildings
Vuosikerta12
Numero9
DOI - pysyväislinkit
TilaJulkaistu - syysk. 2022
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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