Numerical analysis of thermal comfort and air freshness generated by a multi-cone diffuser with and without lobed inserts
نویسندگان
چکیده
In this work, a numerical investigation using Ansys Fluent software is performed to study the flow pattern, indoor thermal comfort, and air freshness generated in full-scale ventilated office room occupied by sitting occupant. The performance of multi-cone ceiling diffuser equipped with lobed inserts assessed compared traditional diffuser. comfort evaluated predicted percentage dissatisfaction (PPD) draft rate (DR) indicators. To assess inside room, mean age (MAA) evaluated. After validating simulation, effect supply on airflow freshness, are investigated. Velocity contours show that recirculation zones domain result from interaction between supplied plume above occupant's head. statistical analysis PPD DR reveals - depending reduce zone. However, terms MAA, slightly vicinity
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ژورنال
عنوان ژورنال: Journal of building engineering
سال: 2022
ISSN: ['2352-7102']
DOI: https://doi.org/10.1016/j.jobe.2022.104632