1 00:00:00,000 --> 00:00:05,580 Hello, we are from the school Gonzalo Fernando de Córdoba and our project is called Green Hydro Ship. 2 00:00:06,900 --> 00:00:09,960 Recently, we've been experiencing a great energy crisis. 3 00:00:10,320 --> 00:00:12,740 Every day, light and oil prices rise. 4 00:00:14,199 --> 00:00:18,800 We don't want to continue like this. That's why we have been investigating the issue 5 00:00:18,800 --> 00:00:23,699 and we have discovered that the cargo ships that transport the goods from one continent to another 6 00:00:23,699 --> 00:00:26,920 are the most energy consuming method of transport. 7 00:00:27,679 --> 00:00:31,899 Additionally, we have seen that the most abundant element on the planet is hydrogen. 8 00:00:32,359 --> 00:00:34,759 So why not use hydrogen as a source of energy? 9 00:00:35,560 --> 00:00:40,159 Taking all of this into account, we decided to build a ship using our 3D printer. 10 00:00:40,420 --> 00:00:43,899 We had to make various prototypes until we developed the ideal model. 11 00:00:44,740 --> 00:00:47,420 One problem that we had was letting our ship to float. 12 00:00:47,420 --> 00:00:53,740 We already knew that the PLA is very porous and it ends up sinking when we put it in water. 13 00:00:53,740 --> 00:00:59,740 so we applied a special coating to the base to allow our ship to flow without problems. 14 00:01:00,740 --> 00:01:06,739 Later, one of the things that we took into consideration was to investigate how to propel a ship. 15 00:01:06,739 --> 00:01:13,739 Upon investigating, we arrived at the conclusion that the best way of movement is using paddles of this type. 16 00:01:13,739 --> 00:01:16,739 In this manner, we could easily collect water coming into the ship, 17 00:01:16,739 --> 00:01:20,739 disachieving hydrolysis to produce hydrogen in a simple way. 18 00:01:20,739 --> 00:01:25,280 It's true that no one has been able to produce hydrogen with salt water, but thanks to the 19 00:01:25,280 --> 00:01:32,739 DAI research at Stanford University, there has been significant advancement in this. 20 00:01:32,739 --> 00:01:38,500 They found out that if they covered the anode with layers reaching negative charges, these 21 00:01:38,500 --> 00:01:42,640 layers would reduce the metal-less compulsion in the anode. 22 00:01:42,640 --> 00:01:48,239 That prevents the salt water components from breaking the submerged anodes. 23 00:01:48,239 --> 00:01:54,060 Our ship will have a fuel cell, like the one you see here, that has two functions. 24 00:01:54,060 --> 00:01:59,480 The first function is electrolysis, generating hydrogen and oxygen from water thanks to the 25 00:01:59,480 --> 00:02:01,180 solar panels. 26 00:02:01,180 --> 00:02:05,760 The hydrogen and oxygen are stored in cylinders thanks to the cables that we have connected 27 00:02:05,760 --> 00:02:10,139 to a solar panel that produces electricity using the electrodes. 28 00:02:10,139 --> 00:02:15,340 The current that passes through the negative terminal collects hydrogen and the positive 29 00:02:15,340 --> 00:02:19,000 terminal collects all oxygen. 30 00:02:19,000 --> 00:02:23,740 The second function is hydrolysis, where a fuel cell generates electric energy through 31 00:02:23,740 --> 00:02:27,199 the reaction between the stored hydrogen and oxygen. 32 00:02:27,199 --> 00:02:32,020 In this process, the positive hydrogen charges are combined with the oxygen-forming water 33 00:02:32,020 --> 00:02:38,099 vapor that will be the only waste generated, whereas the negative charges continue to circulate 34 00:02:38,099 --> 00:02:41,580 through the battery producing the electrical current that moves the ship. 35 00:02:41,580 --> 00:02:44,319 Here you can see our ship working. 36 00:02:44,319 --> 00:02:49,599 We have created an app with App Inventor and we drive our ship using the app. 37 00:02:49,599 --> 00:02:52,400 We had also so much fun! 38 00:02:52,400 --> 00:02:57,939 With this system we can get our ship to function with clean energy and that respects the environment 39 00:02:57,939 --> 00:03:00,560 as proposed on the 2030 Agenda.