Ventilation systems

Ventilation systems

Ventilation circulates air within the building, as well as exchanges the inside air with the outside air. Ventilation systems control temperature and humidity levels, and remove airborne bacteria, odor, and dust. The two types of ventilation are natural and mechanical.

mechanical ventilation

A forced ventilation method that circulates the air, removes odors, and controls humidity within the building. It is often used in wet areas such as food preparation rooms and bathrooms to control odor. Ceiling and window fans or portable ventilation devices are used to circulate the air within the space. They cannot be used for air replacement unless a clear indoor/outdoor circulation pattern is established.

natural ventilation

A method that uses operable windows and direct outside air circulation, when the temperature, wind, precipitation, humidity, and pollution levels are acceptable. The amount of natural ventilation depends on the type, shape, placement, and size of the building and its openings. There are two primary natural ventilation methods: cross-ventilation and stack-ventilation. Cross-ventilation depends on wind-driven breezes, whereas stack-ventilation uses air density differences to create air movement across a building.
References in periodicals archive ?
The proposed OSHA rules focus on making sure that ventilation systems work, and involve most work space activities.
Continuous vulcanization lines are generally supplied with excellent hood ventilation systems to remove fumes generated during the curing process.
com/research/xpmfhb/global_ventilation) has announced the addition of the "Global Ventilation Systems and Accessories Market 2011-2015" report to their offering.
job description: dismantling and disposal of the existing ventilation systems abl wc / adjoining rooms, to / abl kegelstube, ventilation system small and large hall (including stage / foyer).
Another paper on this project focuses on per-fluorocarbon tracer (PFT) measurements to determine zone air change rates and inter-zonal airflows with the different ventilation systems operating.
Brooks had grown up with sustainable building, working alongside his uncle, who was a contractor in Antigua, designing buildings out of native woods, rain water catch systems across ventilation systems that blend trade winds coming off the sea.
Past research on natural ventilation has revealed that the application of pure natural ventilation systems may be limited in the United States by issues such as climate suitability, humidity control, and reliability.
A ban on smoking in public might not be necessary if pubs, clubs and restaurants installed proper ventilation systems, the National Assembly has been told.
The technology exists to ``capture and kill'' anthrax in ventilation systems, but officials at Ultraviolet Devices Inc.
The method was used in several foundries to demonstrate that the configuration of supply and exhaust ventilation systems caused emissions in the air to move and concentrate in relatively stable and predictable patterns.
Engineers used an earlier DOS version of the software to evaluate ventilation systems at the Savannah River Nuclear Laboratory, as well as potential smoke movement and other fire safety issues related to planned renovations of New York's World Trade Center.
Ventilation Systems not only eliminate kitchen odors, but also help to control the humidity in a kitchen, which inhibits the growth of bacteria.