I also was thinking of the heat of compression, and that storing it in caves would cool it considerably, but then read "NRStor is joining up with Massachusetts-based General Compression Inc., which developed a compressed-air technology that uses heat exchangers in a so-called near-isothermal process instead of fuel." There have to be losses in the heat exchange process, and to what are the pumping the heat? I guess if they heat water high enough with the heat, they could use it to drive turbines as well. My geothermal heat pump heats the water heater with excess heat in the summer, I guess they could do the same. I do think that using gravity to store the excess energy via pumping it up hill, and letting it run down through a turbine would be better though.
On Wed, Jun 24, 2015 at 2:39 PM, fmiser via Mercedes <firstname.lastname@example.org> wrote: > > Interesting idea. > > I think if there is a hill that pumping water to the top will > probably have less losses. One issue with compressed gas is > the act of compressing it makes it hot, and for long term > storage that heat will be lost. The greater the pressure, > the greater the heat and the greater the loss. > > If they have figured out a way to effectively use > low-pressure air to generate electricity, it might work out > really good. But if it's just a turbine, high pressure makes > the turbine more effective, so there will be a compromise > either way. > > Short term storage - as in day vs night - the heat could be > retained and then the system looks pretty good. Except for > the explosion dangers. > > -- Philip, speaking before reading up on the details > -- OK Don NSA: The only branch of government that actually listens to US citizens! *“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of our people need it sorely on these accounts.”* – Mark Twain "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2012 Passat TDI DSG, 44 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com