Traffic–related pollutant has been recognized as an air pollution hot spot due to its large emission rate and great health impacts for the exposed population. In the present investigation, a computational fluid dynamics technique is used to evaluate the effect of traffic pollutions on indoor air quality of a naturally ventilated building. The transport of street-level nonreactive pollutants emi...

Kitchen is an important place in Chinese residential building. However, unfavourable thermal environment and unsatisfied air quality occur during cooking. Studies on kitchen are experimentally investigated with enough make-up airflow. But mostly normal kitchens merely installed a exhaust hood have not supply system. This work carried out numerical simulation to investigate indoor under natural ...

Natural cross ventilation not only removes the heat load generated indoors, but also increases convective and evaporative loss from human skin to improve indoor thermal comfort of residential houses in summer season. Opening windows increase air movement through has been always used as an environmental adaptive behavior many countries including Japan. Existing research about fluctuating airflow...

The COVID-19 pandemic has changed the way of living many people across planet. In beginning pandemic, when strict lockdown was implemented, numbers individual were encouraged to work from home. city living, high rise apparent and became a global phenomenon. This paper evaluates natural ventilation performances existing apartment units in Jakarta, Indonesia by measuring indoor temperature, airfl...

Building energy analysis tools are available in many forms that provide the ability to address a broad spectrum of energy-related issues in various combinations. Often these tools operate in isolation from one another, making it difficult to evaluate the interactions between related phenomena and interacting systems, forcing oversimplified assumptions to be made about various phenomena that cou...

This study aimed to assess the effects of biomass smoke exposure on lung function in a Nepalese population, addressing some of the methodological issues seen in previous studies. We carried out a cross-sectional study of adults in a population exposed to biomass smoke and a non-exposed population in Nepal. Questionnaire and lung function data were acquired along with direct measures of indoor a...

Current simulation tools of airflow and contaminant dispersion in built environment cannot provide detailed information with little computing effort, which is critical for emergency management. Multizone airflow network models are fast but cannot provide detailed flow and contaminant transport information in an indoor space. Computational Fluid Dynamics (CFD), on the other hand, gives very deta...

The effect of a commercial manure additive (Alliance®) on ammonia (NH3) emissions was evaluated in commercial 1000-head grow-finish swine buildings over a six-month period. The test was conducted in two treated and two control buildings at a modern swine-finishing site consisting of nine identical buildings. Automatic spray application systems in the treated buildings intermittently sprayed the...

In a cardiac procedure room, ventilated by a ventilation and air-conditioning system with turbulent mixed airflow, a protection zone in the operating area could be defined through visualization of airflows. Within this protection zone, no turbulence was detectable in the room air.Under the given conditions, disinfection of all surfaces including all furniture and equipment after the last operat...