How to Compute Static Pressure Range for a Duct System
It is important that you are able to check for static pressure on the range for your duct system. This is something that can be very beneficial to you for several different reasons.
Step 1 – Critical Path
You will need to begin by selecting your critical path as the longest branch that is between the terminal outlets and the fan. Get the total pressure losses assigned to each of your critical paths as the recommended amount of pressure loss per the unit of the length. You will multiply this by the section’s actual length.
Step 2 – Calculate
The cross sections for your critical path need to be calculated by using the total pressure losses. The pressure loss that you have can’t be calculated until you have the branched cross sections assigned properly. Ignore the pressure loss and assume constant pressure for the junctions. Get the pressure losses in the critical path’s sum and choose a fan. Total pressure should be assigned at the critical path node.
Step 3 – Software
It is usually a good idea that you have software that can help you with all of this as it is difficult to do on your own.
How to Recover Items in Your Floor Air Vent
If you have a floor air vent, then it is likely that you will drop things down the vent from time to time. This can be a problem if you have a very small vent which is difficult to reach into. Often, leaving the item in the vent can seem like the only option, vents can be damaged by objects being left in there, and it may accumulate dust and debris. Removing the item from the vent should not be too difficult.
Unscrew the Vent Cover
The first thing that you will need to do is to unscrew the vent cover. There will be screws at either side holding this into place, so take a suitable screwdriver, and use this to remove all of the screws around the cover. You should keep them to one side, as you will need to replace it later.
Use a Hoover
If the object is out of reach, or close to a fan or electrical item, then you can use your hoover to suck the item back to the surface. Place the vacuum nozzle into the vent close to the location of the object, and suck it up.
Use a Spider Grabber
This items can often be found in thrift stores, and consist of a long pole with a claw-like extension. Push this down onto the object, and it should be able to pick it up. Bring to the surface, as with the vacuum.