Tank Heating » Industry News http://www.tankheating.com Just another WordPress weblog Mon, 14 Jun 2010 23:32:04 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Industry News http://www.tankheating.com/2009/10/industry-news/ http://www.tankheating.com/2009/10/industry-news/#comments Mon, 05 Oct 2009 18:32:18 +0000 admin http://www.tankheating.com/?p=18 Snow Covered Propane_skWhen working with compressed gases you will quickly learn that each gas has its sweet spot. In a liquid propane (LP) tank for example, part of the volume is occupied by liquid and part is occupied by gas. The pressure of the gas is governed by the temperature of the liquid. When a propane tank gets too hot during warm summer months, liquid heats, gases expand, often causing release valves to engage. Too cold, and pressure will fall creating the opposite effect… No pressure! So how do you find that sweet spot and keep your propane pressure at MAXIMUM safe output? You can start by wrapping your tanks in something to keep them warm.

Temperature Vapor Pressure
(oF) (oC) (psig) (bar)
-44 1) -42.2 0 0
-30 -34.4 6.8 0.5
-20 -28.9 11.5 0.8
-10 -23.3 17.5 1.2
0 -17.8 24.5 1.7
10 -12.2 34 2.3
20 -6.7 42 2.9
30 -1.1 53 3.7
40 4.4 65 4.5
50 10.0 78 5.4
60 15.6 93 6.4
70 21.1 110 7.6
80 26.7 128 8.8
90 32.2 150 10.3
100 37.8 177 12.2
110 43.3 204 14.1

1) Boiling point of LPG-gas at atmospheric pressure

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