Evaluation of the Air Quality and the Thermal Comfort in the Kitchen Fume Environment under the Fresh Air Supplement

Results in Engineering, Год журнала: 2024, Номер 23, С. 102681 - 102681

Опубликована: Авг. 8, 2024

Kitchen cooking particles can severely deteriorate indoor environment, aggravating the risk of cardiovascular and cerebrovascular diseases, as well respiratory diseases. In view severe hazard to human health, this paper numerically studies trajectory deposition in kitchen environment based on a numerical model. Also, quantitative evaluations for air quality thermal comfort are performed, hoping provide useful reference control pollution. Firstly, simulation model is established Fluent. A post-processing UDF program evaluating effectiveness fume absorption developed. The reliability verified by comparing results concentration with those experiments. Using model, extraction range hood under different velocities fresh analyzed comprehensively, including particle trajectory, age, temperature, PMV (Predicted Mean Vote), PPD Percentage Dissatisfied) indicators. Results have shown that high speed cause strong blowing sensation, deteriorating quality. values around body show parabolic trend. Generally, relatively low achieve satisfactory while saving energy consumption.

Язык: Английский

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Assessing the chemical composition, potential toxicity and cancer risk of airborne fine particulate matter (PM2.5) near a petrochemical industrial area

Environmental Toxicology and Pharmacology, Год журнала: 2023, Номер 101, С. 104170 - 104170

Опубликована: Июнь 7, 2023

Язык: Английский

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Size-resolved inhalation intake fractions for particles released from human activities in residential indoor environments

Building and Environment, Год журнала: 2023, Номер 244, С. 110763 - 110763

Опубликована: Авг. 22, 2023

Inhalation exposure to elevated concentrations of airborne particulate matter is a public health concern. Assessment can be enhanced through better knowledge source-receptor relationships, which characterized the inhalation intake fraction metric. This case study provides new insights on variations in particle fractions for indoor sources associated with common human activities residential buildings. In controlled climate chamber (air temperature: 24 ± 1 °C, relative humidity: 50 5%), we investigated size-resolved particles relation four scripted performed by volunteer: sitting, walking, cooking, and vacuuming. We measured size- time-resolved number at volunteer's breathing zone characterize fractions. addition, different stationary locations across assess degree spatial heterogeneity concentrations. The results show that released from skin clothing during sitting were highest total (13‰), followed cooking (9‰), vacuuming (5.7‰), walking (3.9‰). These highlight how proximity localized emission low air mixing enhance particles. Sitting caused maximum size range 1–3 μm. Findings also assumption perfectly mixed environment could lead an underestimation up 3.2-fold. this provide basis achieving more accurate personal assessment improved quality management.

Язык: Английский

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An appraisal of air quality, thermal comfort, acoustic, and health risk of household kitchens in a developing country

Environmental Science and Pollution Research, Год журнала: 2021, Номер 29(18), С. 26202 - 26213

Опубликована: Дек. 1, 2021

Язык: Английский

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Lung deposition of PM-bound trace elements and corresponding human health risk assessment in commercial kitchens serving Mediterranean cuisine

Atmospheric Pollution Research, Год журнала: 2024, Номер 15(9), С. 102227 - 102227

Опубликована: Июнь 18, 2024

Язык: Английский

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