• Due to cooling needs, Ni0nol engine is more suitable for small unit based system.
Ac0ve movement to commercialize in 1970s but disappeared a @ er. As happens for some disrup0ve energy use, Shape Memory Alloy( SMA) is widely used & encouraged for other non energy applica0ons such as medical, dental, aerospace, robo0cs, structural integra0on etc. Also there is some energy saving element at various automa0c actua0on at set temperature etc.
• Can be made simple system to produce energy with much lower cost than exis0ng heat
recovery tech. Less disrup0ve format mainstream Ni0nol based generator debut( Exergyn), Some private type trials with solar air hea0ng / desorp0on chamber for 24hr " perpetual free energy system " demonstra0ons made( Kimton Gravity Engine, Kellogg ' s Research Labs, Actment jp +), General Motors( GM) got US gov ' t grant in 2009 with Dynalloy & HRL Laboratories along with patent for car exhaust heat recovery but news disappeared.
• Tech effect for power genera0on suitability is scien0fically mainstream recognized but occasional main media level pseudoscien0za0on effort exists. Shape Memory Polymer tried for some micro energy harves0ng, eg ElectroAc0ve Polymer by wind or oscilla0on( TU Del @, Bayer AG +). Also it is notable Ni0nol is ac0vatable in much wider temperature now with-200 to + 150C range: eg Fe-Ni-Co-Ti( Daido Univ- Daido Steel- �
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• SMA can be also almost no electricity use cooling by heat absorbing state under certain condi0ons( Seelecke & Schütze +) 74