Results 1 to 10 of about 174,676,280 (307)
Toxics, 2022 The use of air cleaners indoors has increased with the increase in indoor activities driven by the COVID-19 outbreak. In this study, the indoor air quality was determined at the location of each patient’s respirator in a four-bed hospital ward equipped ...
Jungsuk Lee +4 more
doaj +1 more source
Toxics, 2022 Since air quality has a great influence on students’ health and learning ability, enhancing air quality in classrooms is important. Currently, widely distributed ventilation systems operate by moving airflow horizontally from ventilation inlets and ...
Su-Hoon Park +3 more
doaj +1 more source
Toxics, 2022 This study targeted a four-bed ward with a ventilation system and a four-way cassette fan coil unit (4-way FCU) installed on the ceiling. The indoor air quality under summer and winter conditions was comparatively analyzed.
Jungsuk Lee +5 more
doaj +1 more source
Ceiling-Fan-Integrated Air Conditioning (CFIAC): Age-of-air, Air Pollution, and Airflow Distribution [PDF]
E3S Web of Conferences, 2023 Ceiling-Fan-Integrated-Air Conditioning (CFIAC) is a heating ventilation and air conditioning (HVAC) design approach that jets supply air into the vicinity of ceiling fans to be mixed and distributed within the room. This eliminates terminal ductwork and
Li Lu +6 more
doaj +1 more source
Large-Eddy Simulations of Wind-Driven Cross Ventilation, Part1: Validation and Sensitivity Study
Frontiers in Built Environment, 2022 Natural ventilation is gaining popularity in response to an increasing demand for a sustainable and healthy built environment, but the design of a naturally ventilated building can be challenging due to the inherent variability in the operating ...
Yunjae Hwang , Catherine Gorlé
doaj +1 more source
Buildings, 2022 A biosafety level (BSL) laboratory is a set of biocontainment preventative measures used to prevent and isolate hazardous biological agents or their accidental release in a laboratory. It is vital to provide a negative-pressurized environment for disease
Indra Permana +3 more
doaj +1 more source
Frontiers in Built Environment, 2022 Natural ventilation can contribute to a sustainable and healthy built environment, but the flow can be highly dependent on the ventilation configuration and the outdoor turbulent wind conditions.
Yunjae Hwang, Catherine Gorlé
doaj +1 more source
CFD Study on the Ventilation Effectiveness in a Public Toilet under Three Ventilation Methods
Energies, 2021 The indoor air quality (IAQ) of severely polluted toilets is associated with the transmission of diseases. Computational fluid dynamics (CFD) methods and experimental measurements were used to analyze the diffusion characteristics of pollutants.
Zhonghua Zhang +10 more
doaj +1 more source
Effect of an Air Cleaner Based on Age of Air Distribution Measurement Using the Dynamic Steady-State Concentration [PDF]
E3S Web of Conferences, 2023 This study aims to determine the range of the effect of an air cleaner in indoor environments. The age of air is often used to evaluate the ventilation performance in indoor air environments, and step-down tracer gas methods are widely used in open-air ...
Ri Hiko +7 more
doaj +1 more source
Impact of air pollution on cardiovascular aging
Mechanisms of Ageing and Development, 2023 The world population is aging rapidly, and by some estimates, the number of people older than 60 will double in the next 30 years. With the increase in life expectancy, adverse effects of environmental exposures start playing a more prominent role in human health.
Marin Kuntic +5 more
openaire +3 more sources