The first, and most apparent, is directly measuring the air flows. There are two methods of determining the ACH rates in a building. Please note, the above list identifies ACH rates without special consideration for industrial/commercial processes that may introduce air contaminants into the air that should be controlled through the use of local exhaust ventilation. The following list comes from “The Engineering Toolbox” website at and is a valuable reference for ACH’s. The following is a good reference table for some of the more common building use and the ACH for those uses. It is important to note that the application of the ACH concept is only intended as a general reference and does not include dealing with a specific situation where air contaminants are involved that require local exhaust ventilation to capture a chemical, dust, or gas before it gets into the building’s air stream. Other examples are Classrooms, 6 – 20 ACH ( a lecture hall or a chemical laboratory?) Machine Shops, 6 – 12 ACH warehouses, 6 – 30 ACH. The ACH can vary widely depending upon what is going on inside the building: for example – it is generally considered that 4 ACH’s is the minimum air change rate for any commercial or industrial building. The most common term used to refer to the amount of outside air that needs to be introduced into a building is Air Changes per Hour (ACH). The amount of fresh air-outside air-that needs to be introduced into a building varies widely depending upon the activity and level of occupancy.
DOWNLOAD GAME ZOO TYCOON 3 FULL FREE
If you need ventilation consulting or testing discussed in this article, call us at 97 or e-mail us at for details and a free estimate. Safety/Loss Control News and Technical Articles.IAQ and Mold News and Technical Articles.Industrial Hygiene News and Technical Articles.Environmental News and Technical Articles.Ventilation News And Technical Articles.Industrial Safety and Construction Safety.Mold Testing/Sampling and Consulting Experts.Indoor Air Quality (IAQ) Testing/Sampling in High-Rise & Large Commercial Buildings.Initial Surveys & In Depth Investigations.Indoor Air Quality (IAQ) Prevention and Maintenance.
0 kommentar(er)
