3 ms·

2000kg of NaOH has a volume of less than one cubic meter. And I don't get for what reason I would have to store the water needed for the reaction instead of jus

• dpark 10y ago
  A cubic meter per resident. For just 3 months of the years. And each unit is diluted 50% already. As for the water, you're going to basically dump a bunch of water into this thing to generate heat. And when you're done, your NaOH will be more dilute and need a bigger storage vessel. So you need enough room to store all the water you'll ever add. When you recharge, you'll produce a bunch of water, too. You either dump it or you store it for the next use. If you store it, then you double the amount of storage that you need for water because you have room premix and postmix.
  • petre 10y ago
    You could use a cubic meter of solution and store the heat underground then use a heat pump to extract it. But that could be also done directly by heating the ground using excess solar. Lye seems better suited for daily storage - store during the day, extract at night. Mostly useful in the desert or during the spring/fall when day/nught temperature variations are high and solar irradiation is good enough.