I am trying to define HVAC groups to put multiple buildings into workable groups and need a second opinion of this arrangement, so get you 2cents out and let me know.
I welcome any additional HVAC systems that might be added to these groups as well.
AHU GROUP
Definition:
AHU
SPLIT
RTU
GAS...
Searching for ASHRAE or ASME acronym or Cad abb. for Window mounted Packaged terminal air conditioner?
I HAVE y14.83 BUT IT IS NOT LISTED ..
PTAC,TTW,VTAC,SPLIT, BUT NOT WINDON UNIT?? what is the standard acronym??
Thank you
What is so wrong with a check and balance system! Money vs Life
Working on schedules for P&ID and building systems, I am looking for a copy of NCS , if anyone can spare.
also looking for acronyms/abb. for " INSTANT HOT WATER DISPENSER" and "ELECTRICAL SUB-DISTRIBUTION PANEL ".
I would appreciate any help.
Thank you
Windseaker
What is so wrong...
I am looking for a national Engineering or even a Cad standard for equipment schedules?
I have noticed that ASNI/ISA 5.1 is used for P&ID on drawings but there must be a print standard for equipment schedules naming convention. The correct standard names and acronyms list or data list is what...
Looking for the ANSI standard for Drawing Abbreviations & Acronyms. Do anyone know what the section number or standard is?
or USNCS (National Cad Standard)
Example:
just like ASME Y14.38
What is so wrong with a check and balance system! Money vs Life
Hi all,
General question about building seismic report, where is the first place to go for information on a commercial or industrial, or institutional seismic building report??
Now I have O&M and as-built from construction several years ago and I have scanned O&M's and drawings pretty good with...
I have a general question on over pressure on Boilers. A 30,000lb/hr PSV is set at 165psi. It is exceed passed 165psi with steam but stays open and is still lifted with water. Now that it has included water, the PSV will need to be retested and certified(or swamped out) ???
How safe is the PSV...
Looking for best practices for NG Turbine lay-up to avoid corrosion. This is way-different the Steam turbine dry-lay-up practice. I was wondering about a weekly rotation and dry air injection for a four month off season storage. Any other practices are welcome.
What is a loop sheet?
Well how about this, A schematic or diagram that shows a particular Master control components or equipment that is laid out start to finish or looped. This single system layout will show which component or equipment with start first in sequence and continues down the line...
Pressure Relief Valve = PRV
Pressure Regulator Valve = PRV
Pressure Reducing Valve =PRV
On Prints sometimes these are confused and not ID correctly. What is the correct way to designate these valves? There is also the same problem with control valves. This is for a boiler plant drawing...
Have development task to tag all boiler components to create PM system.
Two questions.
Do you really need to tag everything(its 4 floors) can you utilize prints, scheduled, and spreadsheet matrix?
and
CMMS system is older FAMIS to create PM work orders to do route en maintenance of clearing...
Have been given the task of developing new numbering system for old boiler. Some tags and some tag information exist.
The last person started system and 2mo. In was fired.
Admin want it done, slap tags and go.
Plant wants logical system to produce logical PM work order. but admin produces w.o...
Looking for ideas on a thrust bearing for a shredder machine w/ a 2-1/2 dia shaft. Shaft length is 30" w/ 15 mounted rotating chewing disks. We are shredding soils and clay at about 40 yds/hr. Would like a common HD bearing w/ low profile. About No. 80 drive chain on sprocket too.
Any ideas...
Trying to find the calculations for fill-line in tanks.
What is the height of the air space needed in a tank of fuel,oil or solivent?
I have heard its 10% of volume is a rule, but just how true is this number??
I ran across this formula, but it is only good up to 180Degrees?
(.01743xrad)x degree of circle
And I beleive this is not true as well: given
Roll-out flat pattern:
OD = 6.375 material .375 steel
Cir. 6.375 x 3.1415 = 20.027
Formula: (.01745xR)...
Here is attached problem. We are very limited on space. Input will be air blown cement, out put needed is 2.5 tons per hr. A debate is on about useing a 6"Dia. Starting from left with a 4" flight and 6" flight at end of auger#2. Auger #1 is 6" flight at 1 to 1 pitch.
Auger #2 is trough, Auger...
Help
Im looking for the shear force on any given object at 4' depth on the inside wall of a hopper of cement (density=90lb/ft3)? This seams like a dam problem??
