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 ?
Contract notice: Ventilation systems for the construction of a new administrative and residential building with underground parking at the site of the former werkkunstschule in krefeld.
Mining ventilation systems are used for circulation of adequate quantity and quality of air in mines.
National standards and guidelines of requiring a fixed fire suppression system in transit tunnels have gradually been increasing while ventilation systems are already commonly required for tunnels of a certain length (AASHTO 2010, NFPA 2013).
These ventilation systems are so sophisticated and energy efficient, in fact, that they have turned what is traditionally the least desirable work area in a plant into a show room.
The project involves a renovation, including new roof, flooring, restoration of brick masonry, window replacement, building envelope and structural upgrades, replacement of heating and ventilation systems, science lab renovations, lighting, electrical and plumbing upgrades and interior renovations.
As a result, new homes often need ventilation systems provided to meet current ventilation standards.
I am asking for these so-called managers to ensure they turn on their ventilation systems.
The Army's Rapid Equipping Force (REF) delivered 500 body ventilation systems to heat-stressed soldiers in Iraq and Kuwait last month.
Caerphilly-based Nuaire, which provides ventilation systems in the UK and France, has won the lucrative contract to supply Haslam Homes with an innovative green heating system.
That's the only way to make sure ventilation systems and blowers are working properly.
New building owners and managers might want to double check the performance of their ventilation systems before accepting the door keys from their contractors.
We show that Campylobacter-infected flies entered a broiler house in large numbers through the ventilation systems, which suggests that flies may be an important vector in summer.