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[Phys-L] salt results in increased thermodynamic efficiency?



https://www.theatlantic.com/notes/2017/02/america-by-air-a-power-plant-of-molten-salt/518136/?utm_source=nl-atlantic-daily-022817 <https://www.theatlantic.com/notes/2017/02/america-by-air-a-power-plant-of-molten-salt/518136/?utm_source=nl-atlantic-daily-022817>.

bc guesses.

p.s. more concern over birds than thermodynamic efficiency?


nope. A different reason?

"Heat” storage in salts: Use 8.2 link. (note Stirling engine efficiency 10 link)

https://en.wikipedia.org/wiki/Solar_thermal_energy#Heat_storage_to_stabilize_solar-electric_power_generation <https://en.wikipedia.org/wiki/Solar_thermal_energy#Heat_storage_to_stabilize_solar-electric_power_generation>.

conclusion? Using salt may result in higher temp. steam?


The principle eco deniers argument is the sun doesn’t always shine and the wind blow. I thought water gravity storage was the only method.

"However, due to friction losses when pumping water uphill, only about 70 percent of the energy can be recouped when the water is discharged.”

https://en.wikipedia.org/wiki/San_Luis_Dam <https://en.wikipedia.org/wiki/San_Luis_Dam>. The installation we pass on the way to the Sierra, or Reno, or Utah.



Like the Prius. I calculate also about 70% or less.

What’s the energy recoupment of hybrids? For example: A ‘bile with its ICE disabled on a hill coasts down charging an initially discharged battery. How far up the next hill will the battery drive the ‘bile?

My guess is v. ~ 60%. Typical gen.-motor, and battery max. efficiencies are ~ 90%. So ~ 0.9^3 or 73% Subtract drive and rolling friction (guesstimate) 60% total.