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2. Venturi scrubber - Wikipedia

   en.wikipedia.org/wiki/Venturi_scrubber

   Ejector venturi scrubber. A venturi scrubber is designed to effectively use the energy from a high-velocity inlet gas stream to atomize the liquid being used to scrub the gas stream. This type of technology is a part of the group of air pollution controls collectively referred to as wet scrubbers. Venturis can be used to collect both ...

3. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   A centrifugal fan is a mechanical device for moving air or other gases in a direction at an angle to the incoming fluid. Centrifugal fans often contain a ducted housing to direct outgoing air in a specific direction or across a heat sink; such a fan is also called a blower, blower fan, or squirrel-cage fan (because it looks like a hamster wheel).

4. 15 Things That Will Always Fail a Home Inspection (and ... - AOL

   www.aol.com/15-things-always-fail-home-160000027...

   Ideally, your lawn should have a 3% slope away from your home. If not, your inspector will disclose it. Fix: Use topsoil to create an appropriate slope around your house; the ground should drop 2 ...

5. Air purge system - Wikipedia

   en.wikipedia.org/wiki/Air_purge_system

   Air purge system. An air purge system is used to flush electrical control equipment with clean air before it is turned on. This ensures that the functionality of the equipment is not affected or damaged by the contaminants from the surrounding environment. Air purge systems are employed for control and analytic technology that is exposed to ...

6. How to prevent pipes from freezing in your home (and how to ...

   www.aol.com/prevent-pipes-freezing-home-thaw...

   Running water through your home's pipes will help prevent water from sitting and freezing. Keep your home's thermostat set to the same temperature both during the day and at night. This will ...

7. How to Fix Your Frozen Pipes, According to Experts - AOL

   www.aol.com/lifestyle/keep-pipes-freezing-winter...

   Drastically dropping the temperature in your home between the night and day can leave your pipes more prone to freezing than they would be if you leave your heat on (anywhere over 55 degrees ...

8. Pickling (metal) - Wikipedia

   en.wikipedia.org/wiki/Pickling_(metal)

   Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminum alloys. [ 1 ] A solution called pickle liquor, which usually contains acid, is used to remove the surface impurities. It is commonly used to descale or clean steel ...

9. Fan coil unit - Wikipedia

   en.wikipedia.org/wiki/Fan_coil_unit

   A fan coil unit (FCU), also known as a Vertical Fan Coil Unit (VFCU), is a device consisting of a heat exchanger (coil) and a fan. FCUs are commonly used in HVAC systems of residential, commercial, and industrial buildings that use ducted split air conditioning or central plant cooling. FCUs are typically connected to ductwork and a thermostat ...