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...sure of the electric power that is needed to drive a fan (or collection of fans), relative to the amount of air that is circulated through the fan(s). It i ...</math> is the electrical power used by the fan (or sum of all fans in the ventilation system) [kW] ...

...ya2010">{{cite book|first=S. M. |last=Yahya|title=Turbines Compressors And Fans |edition=4th |chapter-url=https://books.google.com/books?id=mYeNd_jnMvkC|da ...]s. Axial fans commonly have larger radius and lower speed (ω) than ducted fans (esp. at similar power. Stress proportional to r^2). ...

[[Category:Ventilation fans]] ...

...ed mathematically as:<ref name=yahya>S.M, Yahya, Turbines, Compressors and Fans, 4th ed. McGraw,2011</ref> [[Category:Ventilation fans]] ...

...s can be used outside for added cooling. Additionally, increasing building ventilation and improving the insulation of hot surfaces will reduce indoor temperature ...stress.<ref name=":0" /> Minnesota Administrative Rules state that indoor ventilation and temperature are regulated to prevent heat stress.<ref name=":0" /> ...

...ntilation fans, when the APR level has exceeded a defined threshold in the ventilation system. ...the sampled air volume, such as a nuclear power plant's main stack, or the ventilation air intake for the plant control room. ...

...continuous flow of it, two-stroke engines do not need a separate crankcase ventilation system. ...r-cooled, as the water/liquid-coolant is carried to air-cooled fins and/or fans, whereas larger engines may be singularly water-cooled as they are stationa ...

* Electric fans or air conditioning units to enhance circulation and comfort. ...nto the elevator shaft due to elevator movements as well as elevator shaft ventilation requirements. Using this conditioned air in the elevator does not increase ...

...lemented in the buildings: New buildings, sealing of cellar floors, forced ventilation of cellars or relocation. Queries in the [[Austrian Health Information Syst ...ly turn off when no continuous current consumers such as air conditioners, fans, humidifiers, electric alarm clocks, night lights, standby devices, alarm s ...