Can the infection risk in elevators be negligible? A comparative study of airborne infection probability in elevators and conference rooms

Energy and Buildings, Год журнала: 2024, Номер 324, С. 114886 - 114886

Опубликована: Окт. 9, 2024

Язык: Английский

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Numerical simulations and experimental verifications at micro‐, meso‐, and macroscales of droplet evaporation: A comprehensive review with special focus on saline droplets

Droplet, Год журнала: 2025, Номер unknown

Опубликована: Янв. 5, 2025

Abstract Evaporation of saline droplets significantly impacts industrial processes such as water and gas treatment. Simulations, with advantages in describing temperature, concentration, velocity distribution inside the droplet, receive increasing attentions. This paper summarized research on numerical simulations droplet evaporation at micro‐, meso‐, macroscales, emphasizing or multicomponent droplets. Accurate description physics phase interfaces within proves to be critical for modeling. While recent studies have investigated interface motion temperature distribution, coupling effect internal concentration flow is still rarely considered. Among methods, lattice Boltzmann method suitable scale due its ability handle non‐continuum behavior. Bridging multiscale models remains a challenge, particularly Marangoni capillary flows. Experimental approaches effects external physical fields (electric, magnetic, convection, laser) substrate properties were also reviewed. Visualizing under various conditions can validate macroscopic models, while experiments different substrates molecular simulations, primarily affect by affecting bottom. comprehensively reviewed evaporation, analyzed advantages, limitations, development directions methods.

Язык: Английский

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Investigation of Combined Ventilation Systems for Infection Risk Mitigation During Dynamic Elevator Rides

Опубликована: Янв. 1, 2025

Язык: Английский

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Optimized design of a reinforced exhaust at low velocity (RELV) system for efficient viral aerosol removal in elevators

Building Simulation, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Язык: Английский

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Investigation of Combined Ventilation Systems for Infection Risk Mitigation During Dynamic Elevator Rides

Building and Environment, Год журнала: 2025, Номер unknown, С. 112938 - 112938

Опубликована: Март 1, 2025

Язык: Английский

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Aerosol dispersion and energy consumption in a mechanically heated and cooled multi-chair dental office with windows routinely opened

Physics of Fluids, Год журнала: 2025, Номер 37(4)

Опубликована: Апрель 1, 2025

Natural ventilation via open windows is a common practice widely applied to dilute aerosols in dental offices for all year around China, which, however, would modifies air distribution and leads extra energy consumption cooling heating. This study intends evaluate aerosol removal efficiency multi-chair office with both mechanical (MV) natural (NV), namely, mixed-mode (MMV). It numerically investigates the effect of mode environmental condition on indoor fallow time (FT) duration, as well consumption. The results show that introducing fresh such mechanically ventilated space enhanced airflow mixing particle dispersion. Compared six changes per hour (ACH) MV mode, MMV less than 4 ACH NV does not ensure reduction suspended count indoors. When rate reaches 6 ACH, compartments an average 64.6% counts. However, 3.5 times higher during heating seasons 2.2 compared mode. recommended FT 18–21 min between appointments, 4–6 has required 14–16 min. intended provide references clinic managers balance quality improvements consumption, thereby achieving sustainable environment optimizing operational costs offices.

Язык: Английский

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Experimental Investigation on the Impact of Thermal Stratification on Aerosol Behavior in Indoor Environments

Опубликована: Янв. 1, 2025

Язык: Английский

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Balancing infection risk and thermal comfort with impinging jet ventilation in hospital elevators

Journal of Building Engineering, Год журнала: 2025, Номер unknown, С. 112851 - 112851

Опубликована: Май 1, 2025

Язык: Английский

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Risk assessment of cough droplets in the indoor environment under different ventilation modes with coupled ceiling fan

Journal of Building Engineering, Год журнала: 2025, Номер unknown, С. 113007 - 113007

Опубликована: Июнь 1, 2025

Язык: Английский

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An Experimental Study on the Characteristics of Human Respiratory Aerosol Emission in Different Activity Intensity States

Building and Environment, Год журнала: 2024, Номер 267, С. 112314 - 112314

Опубликована: Ноя. 14, 2024

Язык: Английский

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