Hydrogen Liquid And Its Uses

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Hydrogen Liquid Hydrogen liquid is most commonly known for its use in space programs as rocket fuel (Zona, 2010). It differs to its gaseous stage mainly through storage and transportation methods – production methods are the same, however to change the fuel to liquid, several conditions are applied. Storage For storage of pure hydrogen liquid, cryogenics is applied. Cryogenics utilises hydrogen’s boiling point and the ideal gas law (Appendix Two). It involves drastically increasing pressure (between 600 to 35000 kPa) resulting in a temperature increase (according to Gay-Lussac’s Law). The gas is allowed to cool through the use of a heat exchanger. It is then rapidly depressurised upon which rapid cooling below 20.3722K (Zona, 2010)…show more content…
However, in liquid form, more can be transported due to condensing the molecule, although making it more volatile as the particles are in closer contact (Aus-e-Tute, 2014). Transportation can be defined as inefficient due to general transportation fees, as well as the safety hazards associated with it, leading to less applications being available (Air Products, 2014). Concluding remarks Energy is lost in condensing hydrogen – 0.452kJ/mol (Mathematica, 2015). However, hydrogen liquid releases a large amount of energy for fuel volume. This production is highly dangerous and technologies are limited to ensure safe use. Liquid Octane Octane, C8H18, is a fuel currently used with petrol. It is a slow-burning fuel that prevents premature combustion in engines (Koerner, 2008). 2C8H18(l) + 25O2(g) → 18H2O(g) + 16CO2(g) + 11024kJ/mol However, combustion can incomplete due to a lack of oxygen, leading to carbon monoxide, a toxic gas. This another greenhouse gas which is not beneficial to the environment and must be eliminated (Lallanilla, 2015). Manufacturing Octane is produced from the distillation and cracking of crude oils to form petroleum. The acquisition of crude oils primarily occurs through mining which is detrimental to the surrounding ecosystems of the region (Lallanilla, 2015). Cracking is breaking larger hydrocarbons into several smaller ones, utilising independent boiling points for refining
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