Page 23 - The Periodic Table Book
P. 23

Uses                                  HOW ROCKET FUEL WORKS


                                                                             Many space rockets use
                                                                             liquid hydrogen as a fuel.
                                                  1. This chamber contains a
                                                   fuel called liquid hydrogen.  The hydrogen reacts
                                                                             with oxygen to form          Delta IV rocket
                                                    2. This chamber contains   extremely hot steam,
                                                   liquid oxygen, which helps   which blasts out of the
                                                       the hydrogen burn.    nozzle. This creates
                                                                             thrust, which pushes
                                                   3. Pumps control the flow   the rocket upwards.
                                                   of  the liquids as they enter
                                                    the combustion chamber.

                                                 4. The combustion chamber is
                                                 where the liquids mix together,
                                      Hydrogen-filled balloon
                                                      creating an explosion.
                                                                             5. The nozzle emits hot vapour,
                                                                             pushing the rocket upwards.
                      This balloon can rise high
                      into the atmosphere where
                      sensors gather information  Margarine
                      about atmospheric pressure,
                      temperature, and wind speed.
                                                                                  This powerful rocket uses
                               Margarine is                                       45,460 litres (12,000 gal) of
                                                                                     liquid hydrogen as fuel.
                            made of  vegetable                       Hydrogen   peroxide
                              oils thickened by
                             adding hydrogen.                                     This liquid is
                                                                                  used as a cleaner.



                                    The                This powerful
                               only waste              created by fusing
                                                       explosion was
                                product                hydrogen atoms.
                              of hydrogen fuel
                                is steam.               This energy-
                                                      efficient bus runs
                                                       on a fuel cell fed
                                                         by hydrogen.  Hydrogen bomb explosion
















                                                    Hydrogen-powered bus



           this element are fused together, releasing heat and  can fly higher than air-filled ones. Supercold
           light. New stars form inside nebulae – such as the  liquid hydrogen is used as rocket fuel. Atoms of
           Orion Nebula. They are clouds of hydrogen gas       hydrogen fuse together to produce a lot of energy
           that slowly collapse in on themselves. Hydrogen     in hydrogen bomb explosions. Pure hydrogen is
           gas is the lightest element of all, and much lighter  also a clean energy source used to power some
           than air. This is why hydrogen-filled balloons      buses and cars.                                        21





   020-021_Hydrogen.indd   21                                                                                    12/12/16   5:37 pm
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