More than 90 percent of people in developed countries do live and work in closed and confined places; offices and residential buildings. This is why in this new world more fresh air which is generally provided by forced ventilation plays a vital role in living of human being. Furthermore due to exiting of different indoor pollutants, like radon and a lot of artificial pollutants, the amount of ...

This study investigated the ventilation efficiency and energy performance of three strategies—an all-air system (AAS), a radiant panel with displacement (DPS), decentralized (DVS). The research analyzed indoor air quality (IAQ) in high-rise building based on building’s height, handling unit (AHU) location, infiltration rate, outdoor pollution seasonal change, filter efficiency. results indicate...

Abstract The paper is focused on the investigation of Indoor Air Quality (IAQ) in two classrooms from a thermal renovated school Bucharest, related to indoor carbon dioxide (CO 2 ), ozone (O 3 ) concentrations or airborne particles (PM2.5), by using experimental data. campaign has been conducted over long period (February-June 2022), allowing study air quality under different weather data condi...

As people spend 90% of their time indoors, it was necessary to improve indoor environmental quality enhance human productivity. Indoor consists air (IAQ), thermal, visual, and acoustic comfort. However, only a few studies have investigated the combined effects IAQ noise. During after COVID-19 pandemic, portable cleaner is often used in buildings reduce concentration particles air, but also gene...

Abstract Children spend a large part of their waking lives in school buildings. There is substantial evidence that poor indoor air quality (IAQ) and thermal discomfort can have detrimental impacts on the performance, wellbeing health schoolchildren staff. Maintaining good IAQ while avoiding overheating classrooms challenging due to unique occupancy patterns heat properties schools. Building sto...

This paper describes a series of laboratory simulation experiments with exposures of up to 5 hours in which the performance of simulated office work was increased by removing common indoor sources of air pollution (floor-coverings and personal computers), or by increasing the rate at which clean outdoor air was supplied per person. Outdoor air supply rates from 3-30 L/s/p were studied. The resu...

Human health hazards can exist in swine confinement buildings due to poor indoor air quality (IAQ). During this study, airborne dust and ammonia concentrations were monitored within a working farrowing facility as indicators of IAQ. The purposes of this study were to assess the temporal variability of the airborne dust and ammonia levels over both a daily and seasonal basis, and to determine th...

Whether one considers the issues related to office workers’ well-being and productivity, or the issues from an energy and environmental perspective, there are clear evidences in favor of improving the quality of office built environment. This paper is concerned with the development and implementation of a practical and robust optimization scheme, with the goal of aiding the office building desi...