Propane Pressure » Increase Propane Pressure http://www.propanepressure.com Facts & stats on propane presure & how to increase PSI Thu, 19 Aug 2010 01:26:48 +0000 http://wordpress.org/?v=2.8.4 en hourly 1 Tips for Increasing Propane Pressure http://www.propanepressure.com/2009/09/hello-world/ http://www.propanepressure.com/2009/09/hello-world/#comments Wed, 02 Sep 2009 21:28:23 +0000 admin http://propanepressure.com/?p=1 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? Consider the following data -

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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

VAPORIZATION RATE – 100 lb. Propane Cylinder (Approx)

Pounds of propane in cylinder
Maximum continuous draw in BTU/hr at various temperatures in degrees F.
0°
20°
40°
60°
70°
100
113,000
167,000
214,000
277,000
300,000
90
104,000
152,000
200,000
247,000
277,000
80
94,000
137,000
180,000
214,000
236,000
70
83,000
122,000
160,000
199,000
214,000
60
75,000
109,000
140,000
176,000
192,000
50
64,000
94,000
125,000
154,000
167,000
40
55,000
79,000
105,000
131,000
141,000
30
45,000
66,000
85,000
107,000
118,000
20
36,000
51,000
68,000
83,000
92,000
10
28,000
38,000
49,000
60,000
66,000

Cold Temperature Propane Deliveries (from Propane 101)

Propane users can become quite confused during periods of cold weather following a gas delivery because their propane tank gauge may read less than what they expect it to read. Using the information from above, a 100 gallon delivery on a cold day (far below 60°F) may indicate less than 100 gallons delivered just by looking at the gauge. If the temperature were to rise to 60°F, a properly functioning float gauge would rise to 40%, assuming the tank was empty at the time of delivery. Cold weather often brings confusion and frustration for propane customers concerning perceived propane volume and the actual amount of propane delivered but the reality is this; When a propane delivery is made during cold temperatures, the tank gauge will indicate less propane delivered based on the beginning and ending gauge readings but the actual amount of propane delivered, according to a properly calibrated truck meter is what was truly pumped into the tank during the delivery.

One effective method for increasing propane pressure and avoiding unnecessary refills is to warm/heat the propane to a desired optimal temperature of 70-80 degrees F.  the most efficient way to do this is with an insulated/heated blanket better known as a Powerblanket.  Utilizing a patented GreenHeat Technology, Powerblanket has developed a spot-on method for delivering insualted heat directly to compressed gas cylinders and and tanks. They can be reached by phone, email, or web:

Powerblanket LogoPowerblanket®, LLC
1997 South 5070 West
Salt Lake City, Utah 84104
Toll Free: 877-398-7407
PB_canada logo———————————
Powerblanket® Canada
4620 Manilla Road SE
Calgary, Alberta  T2G 4B7
(403) 262-5770
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