Results 31 to 40 of about 46,504 (247)

Optimization Study of Sampling Device for Semi-Volatile Oil Mist in the Industrial Workshop

open access: yesAtmosphere, 2022
A large number of metalworking fluids in industrial manufacturing processes generate high-concentrations of oil mist pollution, which is a typical semi-volatile aerosol and is generally composed of liquid particles and volatile gas components.
Yukun Wang   +4 more
doaj   +1 more source

Comparison of multi-stage air treatment process divided by the same temperature and enthalpy difference [PDF]

open access: yesE3S Web of Conferences
The multi-stage air treatment system has been proposed recently, and lower grade chilled/hot water could be used and energy efficiency could be improved.
Wang Wentao   +3 more
doaj   +1 more source

Review of Parameters Measured to Characterize Classrooms’ Indoor Environmental Quality

open access: yesBuildings, 2023
As attention to indoor environmental quality (IEQ) grows, a systematic strategy for assessing IEQ in schools needs to be developed. For this purpose, this paper presents a summary of parameters measured in school classrooms to characterize the quality of
Minh Tien Tran   +7 more
doaj   +1 more source

Cooling performance of direct expansion system using multiple stages and adjustable heat exchange areas for fresh air handling [PDF]

open access: yesE3S Web of Conferences
Providing fresh air to rooms can ensure indoor air quality. The direct expansion fresh air handling units are widely used, and most of them are single-stage treatment units, which are less energy-efficient under variable operating conditions. To overcome
Zha Fuhai   +5 more
doaj   +1 more source

Field Measurements and Analysis on Temperature, Relative Humidity, Airflow Rate and Oil Fume Emission Concentration in a Typical Campus Canteen Kitchen in Tianjin, China

open access: yesApplied Sciences, 2022
This study investigated the annual variation of the indoor thermal environment in a typical canteen kitchen and tried to evaluate the actual working status of the exhaust fume system.
Na Deng   +4 more
doaj   +1 more source

Rapid inactivation of aerosolised influenza virus using low-concentration gaseous hypochlorous acid

open access: yesScientific Reports
Effective infection control measures are crucial for limiting pathogen transmission, including aerosol infections. Several instances of the use of hypochlorous acid solution spray to inactivate airborne viruses have been reported.
Koki Narihata   +5 more
doaj   +1 more source

A Year-Round Energy-Efficient Fresh Air Handling System with Two-Stage Heat Pumps and Lake Water Pre-Treatment [PDF]

open access: yesE3S Web of Conferences
Supplying fresh air is important for indoor air quality, but the energy consumption to treat fresh air is significant. The main problems in existing fresh air system include: supplying single-temperature water to treat fresh air and not applying natural ...
Liang Chenjiyu, Li Xianting
doaj   +1 more source

Investigation of Ventilation Behaviors in Mechanically Ventilated Residential Buildings in China [PDF]

open access: yesE3S Web of Conferences, 2019
Mechanical ventilation system provides a more reliable, controllable, and comfortable way of ventilation than natural ventilation through an opened window. However, the operation of mechanical ventilation system cost energy.
Qi Yue   +5 more
doaj   +1 more source

Bioaerosol is an important transmission route of antibiotic resistance genes in pig farms

open access: yesEnvironment International, 2021
Although pig farms are hotspots of antibiotic resistance due to intensive use of antibiotics, little is known about the abundance, diversity and transmission of airborne antibiotic resistance genes (ARGs).
Lu Song   +6 more
doaj   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

open access: yesAdvanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal   +9 more
wiley   +1 more source

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