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jakenhic1
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| Joined: 28 Sep 2010 |
| Total Posts: 5756 |
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| 29 Nov 2013 10:53 PM |
SupahBoshi64 10/10 drama queen
jakenhic1 8/10
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Wraze
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| Joined: 26 Oct 2013 |
| Total Posts: 26389 |
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jakenhic1
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| Joined: 28 Sep 2010 |
| Total Posts: 5756 |
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| 29 Nov 2013 10:56 PM |
Yes I got an 8
life accomplished |
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pluspower
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| Joined: 21 Jul 2008 |
| Total Posts: 32298 |
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| 29 Nov 2013 10:57 PM |
| Ohhhh! Fiiiirekiller! The seeeervice here is teeeerrible! |
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Wraze
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| Joined: 26 Oct 2013 |
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| 29 Nov 2013 11:06 PM |
RP-1 (alternately, Rocket Propellant-1 or Refined Petroleum-1) is a highly refined form of kerosene outwardly similar to jet fuel, used as a rocket fuel. Although having a lower specific impulse than liquid hydrogen (LH2), RP-1 is cheaper, stable at room temperature, far less of an explosive hazard and far denser. RP-1 is significantly more powerful than LH2 by volume. RP-1 also has a fraction of the toxicity and carcinogenic hazards of hydrazine, another room-temperature liquid fuel. Thus, kerosene fuels are more practical for many uses.
RP-1 is most commonly burned with LOX (liquid oxygen) as the oxidizer, though other oxidizers have also been used. RP-1 is a fuel in the first-stage boosters of the Soyuz-FG, Zenit, Delta I-III, Atlas, and Falcon 9 rockets. It also powered the first stages of the Energia, Titan I, Saturn I and IB, and Saturn V.
Chemically, a hydrocarbon propellant will be less efficient than hydrogen fuel because hydrogen releases more energy per unit mass during combustion, enabling a higher exhaust velocity. This is, in part, a result of the high mass of carbon atoms relative to hydrogen atoms. US hydrocarbon engines are also typically run fuel-rich, which produces some CO instead of CO2 as a consequence of incomplete combustion (unlike Russian engines, which typically run oxygen-rich), although this is not unique to hydrocarbon engines, as hydrogen engines are also typically run fuel-rich for the best overall performance. All told, kerosene engines generate an Isp in the range of 270 to 360 seconds, while hydrogen engines achieve 370–465 seconds. |
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Inploded
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| Joined: 05 Sep 2013 |
| Total Posts: 3420 |
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| 30 Nov 2013 12:57 AM |
Inploded 10.5/10 700gb
Samuel91012 9/10
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| 30 Nov 2013 12:59 AM |
kickmecookies 10/10 700gb silly
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Inploded
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| Joined: 05 Sep 2013 |
| Total Posts: 3420 |
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