What Did You Buy Today?

Compressorguy1 said:
Some enlightening numbers regarding your moisture content and proof your equipment will be “happier” by adding an aftercooler/water separator to the system. Assuming the 7.5hp is a recip compressor and had no ”aftercooler” before and discharging air out at 190 deg F at 116psig and making @ 25cfm and your ambient is 90 deg F. The moisture content can be calculated as: and (assuming my math skills are still intact, lol)

Moisture content without aftercooler
discharge temp 190deg F = .0035 lbs H20/ ft3 free air (ACFM) or .056oz
comp is 25cfm x .0035 lbs H2O/ft3 free air = .0875 lbs or 1.4oz per minute
avg run time 15min x 1.4oz = 21oz or 1lb 5oz or .164 gal per 15 min runtime

Moisture content with aftercooler (assuming 90 deg ambient + 20 deg F approach temp of the aftercooler)
New discharge temp 110deg F = .00045 lbs H20/ ft3 free air (ACFM) or .0072oz
comp is 25cfm x .00045lbs H2O/ft3 free air = .0112 lbs or .18oz per minute
avg run time 15min x .18 = 2.7oz or .17lbs or .055 gal per 15 min runtime

Essentially it’s almost 8 times less moisture in the system

.18oz vs 1.4oz per minute run

2.7oz vs 21oz per 15 min run

only way to reduce it more would be by adding a refrigerated or desiccant dryer
Click to expand...
What is the assumed relative humidity of the 90°F ambient air in your calculation?
 
Needed a larger pipe wrench for an unrelated fixit (my 10" was too small, a new 14" was marginal and my 36" is ridiculous for bench work – just have it for the outside sewer clean-out), so went to HF and picked up an 18" Aluminum handle version (cost more, but weighs not much more than my CI 10" and has a lifetime warranty):

18in Aluminum Handle.jpeg

Then this cute little guy followed me to the check-out:

8in Cast Iron.jpeg


I though I was either in the wrong place or that HF had closed: there was only one car in the parking lot!
 
that HF 18" is USA made, interesting. I picked one up recently on freecycle, 18" craftsman. Gave my son one of my 13" Rigids.

I picked up these on freecycle today.
The black pipe will wind up being hangars for painting. It will go around my duct work in that area. I don't have a pipe threader, if I did, I might cut some and put some T's in .. as it is, I may buy 1" or 1.5" Ts and use reducers, and allow the T to slide on the pipes so I can fit more in..

The doll house was picked up about a month ago, going to give it to my granddaughter when she's older.

The 2 stools were picked up at the same home as the pipes... I fixed them up a bit, stapled the covers on after replacing the hardware in the center of the swivel. I may do more on that... One will go in my machine shop and one in my wood working area. I've got to get rid of some other chairs.PXL_20231101_200917675.jpgPXL_20231101_200901348.jpg
 
Firstram said:
You are going to like that set-up!
Click to expand...
Thanks. I went this route at your recommendation in a previous post. I’m going to try it without the fan first, and will add it if needed. I really liked your install.
 
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