The expansion ratio of a liquefied and cryogenic substance is the volume of a given amount of that substance in liquid form compared to the volume of the same amount of substance in gaseous form, at room temperature and normal atmospheric pressure.[1]
If a sufficient amount of liquid is vaporized within a closed container, it produces pressures that can rupture the pressure vessel. Hence the use of pressure relief valves and vent valves are important.[2]
The expansion ratio of liquefied and cryogenic from the boiling point to ambient is:
nitrogen – 1 to 696
liquid helium – 1 to 745
argon – 1 to 842
liquid hydrogen – 1 to 850
liquid oxygen – 1 to 860
neon – Neon has the highest expansion ratio with 1 to 1445.[3][4]
^Rick Houghton (2007). Emergency Characterization of Unknown Materials. CRC Press. ISBN 978-0-8493-7968-0.
^Safetygram-27 Cryogenic Liquid Containers Archived 2008-12-07 at the Wayback Machine
^Handbook of Compressed Gases. Compressed Gas Association. Springer Science & Business Media. 2012-12-06. p. 76. ISBN 9781461306733. Retrieved 27 July 2022.{{cite book}}: CS1 maint: others (link)
^"Characteristics". The Linde Group. Archived from the original on 2012-02-18.
The expansionratio of a liquefied and cryogenic substance is the volume of a given amount of that substance in liquid form compared to the volume of...
the heat capacity ratio, also known as the adiabatic index, the ratio of specific heats, or Laplace's coefficient, is the ratio of the heat capacity...
effective compression ratio is reduced—for the time the air is escaping the cylinder freely rather than being compressed—but the expansionratio is unchanged (i...
reaching a ratio of 12:1 or more. The greater the expansionratio, the more efficient the engine, in principle, and higher compression / expansion -ratio conventional...
sales. The smaller the ratio, the greater the organization's ability to generate profit. The ratio does not factor in expansion or debt repayment. Alternatively...
000 lbf), a chamber pressure of 300 bar (30 MPa; 4,400 psi), and an expansionratio of 150 for the vacuum-optimized variant. This was achieved with Raptor...
in the cylinder.[citation needed] There are practical limits on the expansionratio of a steam engine cylinder, as increasing cylinder surface area tends...
the expansion of the steam is doing additional work beyond that done by the steam at boiler pressure. An earlier cut-off increases the expansionratio, which...
compression ratio through the concomitant higher expansionratio on the power stroke, which is by far the greater effect. The higher expansionratio extracts...
area expansionratio—the ratio of the area of the exit to the area of the throat, but detailed properties of the gas are also important. Larger ratio nozzles...
19 K (−182.96 °C; −297.33 °F) at 1 bar (15 psi). Liquid oxygen has an expansionratio of 1:861 and because of this, it is used in some commercial and military...
cover large areas. Medium-expansion foams have an expansionratio of 20–200. High-expansion foams have an expansionratio over 200–1000 and are suitable...
volumetric thermal expansion coefficient is three times the linear coefficient: α V = 3 α L {\displaystyle \alpha _{V}=3\alpha _{L}} This ratio arises because...
Efficiency is increased by having the same effective compression ratio and a larger expansionratio. This allows more work to be extracted from the expanding...
pumping losses. The exhaust valve opening timing is retarded for higher expansionratio, enhancing fuel economy. When maximum power is demanded (high engine...
In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. Expressed...
moisture and heat. The extent to which it does so is known as the expansionratio. The extrudate is cut to the desired length by blades at the output...
Zygmunt Wróblewski and Karol Olszewski. Because the liquid-to-gas expansionratio of nitrogen is 1:694 at 20 °C (68 °F), a tremendous amount of force...
(4.14 m) Diameter: 84.5 in (2.21 m) Expansionratio: 280 to 1 Mixture ratio: 5.88 to 1 oxygen:hydrogen mass ratio Propellant flow: fuel, 7.72 lb/s (3...
specific impulse (Isp) of 316 seconds. The oxidizer-to-fuel ratio is 1.65-to-1, The expansionratio of the nozzle exit to the throat is 55-to-1, and the chamber...
the cup is empty—provided the liquid remains superfluid. Cryogenics Expansionratio Industrial gas Liquid nitrogen Liquid oxygen Liquid hydrogen Liquid...