Air Temp & Pressure: Charts, Data Books & More

  • Thread starter Thread starter RKD89
  • Start date Start date
  • Tags Tags
    Air Pressure
AI Thread Summary
Charts relating air temperature and pressure, similar to steam tables, are not widely available, but the ideal gas law (PV=nRT) is applicable in practice with adjustments for real gas behavior using compressibility factors. The Van der Waals equations can be utilized for more accurate calculations. In industrial settings, companies often rely on proprietary databases for fluid properties, which integrate with engineering software. NIST REFPROP is a commonly used resource for those without in-house solutions, available for purchase online. For precise applications, using the ideal gas law alongside compressibility factors is recommended.
RKD89
Messages
76
Reaction score
1
Hi guys
Can anyone tell me if there are charts available to relate temperatures and pressures of Air ( similar to steam tables )
Or do the ideal gas equations ( PV=nRT) hold true in practice as well

The most I could find is Compressibilty Factor on Wiki n Wan Der Waal's Equations


PS: Heard there are something known as Data Books
 
Engineering news on Phys.org
When air is Used as refrigerant , are there charts available to relate pressure n temp??
or I just Use d Gas Laws??
 
The perfect gas law with compressibility factor determined from Wan Der Waal's Equations is how I always do it.
 
In industry we typically use computer databases for fluid properties. Those databases generally interface with most engineering software. Our company has their own proprietary one as I'm sure many companies do. The one most widely used by companies that don't have their own is NIST REFPROP. You can purchase it online here:
http://www.nist.gov/srd/nist23.cfm
 

Thread 'Bubble formation in 4 mm gap vessel'

How did you find PF?: Via Google search Hi, I have a vessel I 3D printed to investigate single bubble rise. The vessel has a 4 mm gap separated by acrylic panels. This is essentially my viewing chamber where I can record the bubble motion. The vessel is open to atmosphere. The bubble generation mechanism is composed of a syringe pump and glass capillary tube (Internal Diameter of 0.45 mm). I connect a 1/4” air line hose from the syringe to the capillary The bubble is formed at the tip...
View full post »
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
View full post »

Thread 'Find 3D Printer & Software Resources for Prototype Creation'

I'd like to create a thread with links to 3-D Printer resources, including printers and software package suggestions. My motivations are selfish, as I have a 3-D printed project that I'm working on, and I'd like to buy a simple printer and use low cost software to make the first prototype. There are some previous threads about 3-D printing like this: https://www.physicsforums.com/threads/are-3d-printers-easy-to-use-yet.917489/ but none that address the overall topic (unless I've missed...
View full post »

Similar threads

Modeling Air Compression Cylinder
Replies
45
Views
5K
Total force from air spring model (double acting piston)
Replies
8
Views
2K
Predicting Remaining Pressure in Compressed Gas Cylinder
Replies
3
Views
3K
How to determine mdot for choked airflow through a valve, given T,P
Replies
3
Views
2K
Can the pressure of liquid air/gas can be increased?
Replies
5
Views
2K
Engineering Calculating the mass of air in a pressurised air tank
Replies
14
Views
3K
Time to empty gas cylinder (problem worked, but would like feedback)
Replies
7
Views
3K
B Variation of air density with height
Replies
8
Views
3K
Adiabatic Expansion of Pressurized Air in a Piston-Cylinder Setup
Replies
8
Views
2K
I Is equilibrium vapor pressure different in vacuum and in air?
Replies
2
Views
2K

Hot Threads

Recent Insights

Back
Top