壓縮空氣儲能技術

壓縮空氣儲能或壓縮空氣儲能技術（），簡稱CAES，是一種利用壓縮空氣來儲能的技術。民生上，離峰時段的能量得以儲存，並於尖峰時段釋放使用。小型系統長期以來一直用於礦山機車之推進等應用。由於散熱會降低存儲系統的能源效率，因此放大應用必須針對壓縮空氣進行熱量守恆控制。液態空氣儲能透過加壓空氣再冷卻來液化空氣，並儲存能量。在學術研究中會將其歸類為壓縮空氣儲能的一種。

種類
氣體壓縮會產生熱，因此壓縮後的空氣溫度較高。相反地，氣體膨脹會釋放熱。如果沒有額外的熱量進入系統，空氣溫度在膨脹後會顯著下降。如果能將壓縮所產生的熱儲存起來，並於膨脹時釋放，則儲能效率便能顯著提升。CAES系統控制熱量的方式主要分為絕熱、或恆溫等三類。

儲存
恆溫儲存
恆壓儲存
熱力學
為了提升儲存與釋放過程的效率，因此一般採用近似可逆的等溫或等熵過程。
另見

• 壓縮空氣車
• 氣動力學

參考資料
外部連結

• Compressed Air System of Paris – technical notes [http://chestofbooks.com/crafts/scientific-american/sup6/The-Compressed-Air-System-Of-Paris.html Part 1] [http://chestofbooks.com/crafts/scientific-american/sup6/The-Compressed-Air-System-Of-Paris-Part-2.html Part 2] [http://chestofbooks.com/crafts/scientific-american/sup6/The-Compressed-Air-System-Of-Paris-Part-3.html Part 3] [http://chestofbooks.com/crafts/scientific-american/sup6/The-Compressed-Air-System-Of-Paris-Part-4.html Part 4] [http://chestofbooks.com/crafts/scientific-american/sup6/The-Compressed-Air-System-Of-Paris-Part-5.html Part 5] [http://chestofbooks.com/crafts/scientific-american/sup6/The-Compressed-Air-System-Of-Paris-Part-6.html Part 6 ] (Special supplement, Scientific American, 1921)
• [http://www.sandia.gov/media/NewsRel/NR2001/norton.htm Solution to some of country’s energy woes might be little more than hot air] (Sandia National Labs, DoE).
• MSNBC article, [http://www.msnbc.msn.com/id/10695864/ Cities to Store Wind Power for Later Use] , January 4, 2006
• [http://www.economist.com/science/displaystory.cfm?story_id=9539806 Power storage: Trapped wind]
• [http://www.businessweek.com/magazine/content/07_41/b4053092.htm Catching The Wind In A Bottle A group of Midwest utilities is building a plant that will store excess wind power underground]
• [https://query.nytimes.com/gst/fullpage.html?res=9D0CEEDE103DF93AA1575AC0A967958260&sec=&spon=&pagewanted=print New York Times Article: Technology; Using Compressed Air To Store Up Electricity]
• [http://saurorja.org/2012/06/18/compressed-air-energy-storage-entropy-and-efficiency/ Compressed Air Energy Storage, Entropy and Efficiency]