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Originally Posted by greentechmedia
Another challenge with CAES derives from physics: If you reduce the volume of a gas, the procedure produces heat. You have to deal with that heat, and then find a way to reintroduce heat when you discharge the air to spin a turbine.
Traditional CAES facilities burn natural gas to heat the cold air as it gets pumped back out of the system, but Hydrostor wanted to keep its operation clean and self-contained. The designers threw in several types of thermal storage to catch the heat given off by the initial air compression and save it for use when the system discharges. Omitting natural-gas burn also makes it possible to slip into urban settings -- the only emission from the process is air.
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They not sure what works? Are cables and pulleys as efficient as steel wheels on rails?
You notice they need water to cover it? https://duckduckgo.com/?q=compressed+air+storage+under+water
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Last edited by freebeard; 09-08-2019 at 01:43 PM..
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