Analysis of an indoor air decontamination device inside an aerobiology chamber: a numerical-experimental study

Kashkooli, Farshad Moradi; Soltani, M.; Zargar, Bahram; Ijaz, M. Khalid; Taatizadeh, Erfan; Sattar, Syed A.

doi:10.1007/s11869-019-00782-w

Cited by 10 publications

(6 citation statements)

References 36 publications

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“…Computer simulations have made it possible to design nucleotide inhibitors through the application of structural information and mutational analyses [ 286 ]. Computational fluid dynamics simulations also make it possible to identify contaminants and spread them, which has led to the optimal design of clean rooms in the current pandemic [ 287 , 288 , 289 , 290 ]. Computational models can also be used to help develop prophylactic vaccines.…”

Section: What Is the Role Of In Silico Models?mentioning

confidence: 99%

Anti-COVID-19 Nanomaterials: Directions to Improve Prevention, Diagnosis, and Treatment

et al. 2022

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Following the announcement of the outbreak of COVID-19 by the World Health Organization, unprecedented efforts were made by researchers around the world to combat the disease. So far, various methods have been developed to combat this “virus” nano enemy, in close collaboration with the clinical and scientific communities. Nanotechnology based on modifiable engineering materials and useful physicochemical properties has demonstrated several methods in the fight against SARS-CoV-2. Here, based on what has been clarified so far from the life cycle of SARS-CoV-2, through an interdisciplinary perspective based on computational science, engineering, pharmacology, medicine, biology, and virology, the role of nano-tools in the trio of prevention, diagnosis, and treatment is highlighted. The special properties of different nanomaterials have led to their widespread use in the development of personal protective equipment, anti-viral nano-coats, and disinfectants in the fight against SARS-CoV-2 out-body. The development of nano-based vaccines acts as a strong shield in-body. In addition, fast detection with high efficiency of SARS-CoV-2 by nanomaterial-based point-of-care devices is another nanotechnology capability. Finally, nanotechnology can play an effective role as an agents carrier, such as agents for blocking angiotensin-converting enzyme 2 (ACE2) receptors, gene editing agents, and therapeutic agents. As a general conclusion, it can be said that nanoparticles can be widely used in disinfection applications outside in vivo. However, in in vivo applications, although it has provided promising results, it still needs to be evaluated for possible unintended immunotoxicity. Reviews like these can be important documents for future unwanted pandemics.

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Section: What Is the Role Of In Silico Models?mentioning

confidence: 99%

Anti-COVID-19 Nanomaterials: Directions to Improve Prevention, Diagnosis, and Treatment

et al. 2022

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“…The negative effects of any pollutants transmitted into the indoor air may be reduced by eliminating the indoor sources of pollutants such as formaldehyde, carbon monoxide, or nitrogen oxides [1], increasing the ventilation rate [2][3][4], or putting air decontamination device in a given space [5][6][7][8][9][10][11]. In the last case, there are a series of widespread devices that claim to disinfect the indoor air based on a wide range of different technologies [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…In the work of Faulkner et al [4], the effects of parameters such as circulation rate, particle diameter, and the location of injection of particles on particle mass concentration were examined at a few different points. Moradi Kashkooli et al [7] developed a CFD model to evaluate the effect of the location of a commercial air cleaner device on its capacity for microbial decontamination of indoor air.…”

Section: Introductionmentioning

confidence: 99%

Numerical Assessment of an Air Cleaner Device under Different Working Conditions in an Indoor Environment

et al. 2021

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Transmission and spread of exhaled contaminants in the air may cause many airborne infectious diseases. In addition to appropriate ventilation, air cleaner devices are used as one of the most common ways to improve the indoor air quality. Therefore, it is necessary to understand the performance of an air cleaner under different operating conditions. This study mainly concerns investigating the effect of presence or absence of furniture and its displacement on the removal rate of the particles leaving a person’s mouth while coughing in an isolated room. Moreover, the effect of air exit angle of the device on removal rate of contaminated particles and the pattern of their dispersion within a room was studied. To this aim, computational fluid dynamics were employed to examine the mentioned effects by using the Eulerian− Lagrangian method. As the results indicated, when the furniture was placed farther away from the device, more particles were removed by the device. Additionally, the air ejection angle of the air cleaner device significantly affects the removal of particles. Results of the present study could improve use of air cleaner devices for maximum reduction of particles in the indoor environment.

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“…Furthermore, numerical simulations make it possible to investigate the influence of structures, such as the exhaust grille, deflecting-ring, and heat exchanger, on the obtained characteristics of the airflow passing through the air conditioner [18]. In addition, CFD analysis is used: to assess the capacity for microbial decontamination of indoor air [19]; to investigate the effect of the position of the air cleaner on the dispersion and removal of particles in an indoor environment [20] and to determine the optimal installation position of the forced air duct during drilling operation [21].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Air Cooling System Using Adjoint Solver Technique

Czerwiński

Wołoszyn

2021

Energies

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Air cooling systems are currently the most popular and least expensive solutions to maintain a safe temperature in electronic devices. Heat sinks have been widely used in this area, allowing for an increase in the effective heat transfer surface area. The main objective of this study was to optimise the shape of the heat sink geometric model using the Adjoint Solver technique. The optimised shape in the context of minimal temperature value behind the heat sink is proposed. The effect of radiation and trapezoidal fin shape on the maximum temperature in the cooling system is also investigated. Simulation studies were performed in Ansys Fluent software using the Reynolds—averaged Navier–Stokes technique. As a result of the simulation, it turned out that not taking into account the radiation leads to an overestimation of temperatures in the system—even by 14 ∘C. It was found that as the angle and height of the fins increases, the temperature value behind the heat sink decreases and the heat source temperature increases. The best design in the context of minimal temperature value behind the heat sink from all analysed cases is obtained for heat sink with deformed fins according to iteration 14. The temperature reduction behind the heat sink by as much as 25 ∘C, with minor changes in heat source temperature, has been achieved.

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Analysis of an indoor air decontamination device inside an aerobiology chamber: a numerical-experimental study

Cited by 10 publications

References 36 publications

Anti-COVID-19 Nanomaterials: Directions to Improve Prevention, Diagnosis, and Treatment

Anti-COVID-19 Nanomaterials: Directions to Improve Prevention, Diagnosis, and Treatment

Numerical Assessment of an Air Cleaner Device under Different Working Conditions in an Indoor Environment

Optimization of Air Cooling System Using Adjoint Solver Technique

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