Idea of "SMA SunMill"

[Khwartz]

Call to help:

If anybody knows a good Shape-Memory Alloy, like Nitinol or else, with austenite start temperature at 90°C +/- 20°C (what ever value possible from 70 to 110°C), and martensite start temperature at 50°C +/- 10°C (what ever value possible from 40 to 60°C), with good ability to be trained to "two ways memory shape", please let me know, it would be far more efficient and simple, than these systems, to make "hairs" or "scales" (blades) for the "mill" or for any other system like "teeters" or else.

[Khwartz]

GEEE 20150815-1700 Our MSA Mill - Self-cooling by chemney convection

[SoManyWires]

GEEE 20150815-1700 Our MSA Mill - Self-cooling by chemney convection

facinating idea there.

what if to re orient the turbine to be placed above rather than below?
that would result in what you see on rooftops that works rather well at less cost.

if you can't re orient placement of the turbine,

trying to think of things for this, mercury reacts to temperature changes, though is not solid enough like other temperature reactive metals such as the ones you described.

solenoid possible?

a vortex controlled heat transfer built into the exhaust system, used to focus the direction of thermal energy more concentrated towards
a diaphragm that moves a connecting rod to a rotor/wire coil.
to power mechanical actuators that could adjust position of the fins that are moved?
sorry for stepping away from the memory metal solution to your challenge with these ideas, a memory metal would seem a easier solution.


heres another interesting possibility for researching that might help the development of your idea.

Que's device, called a CNF-PZT Cantilever, consists of a "carbon nanotube film on a cantilever base of piezoelectric material." When the carbon nanotube film absorbs thermal energy, such as heat and light from other devices, it forces the cantilever to bend. The cyclical bending then generates an electric current in the piezoelectric material.

According to a press release, "the device could generate enough power to adequately operate some low-power microsensors and integrated sensors. One of the most unique and innovative aspects of this energy harvesting system is its ability to "self-reciprocate" – the perpetual production of energy without needing to consume other external energy sources."

Piezoelectric energy harvesting is not new and has already been incorporated into a variety of applications, such as dance floors that power lights and other kinetic energy devices. However, this breakthrough tech transform how we use our everyday devices.

+ Louisiana Tech University

http://inhabitat.com/piezoelectric-device-harvests-wasted-heat-energy-from-tech/

[SoManyWires]

Hello Guys!

I was following the experiments and ideas of Attila Blade with his teeter and sun flower "self-running" on heat energy at very low temperature difference.

https://youtu.be/8BF0UinTAxw

https://youtu.be/4ukwkiUOEs8?list=PLukR_iBSyGXRJNo3KgZIQqJrs-cjWxQ8G

there is some impressive studies presented there.
i probably should have scrolled back and seen that youtube you posted above before earlier on before commenting.

all the best

[Khwartz]

Hello Guys!

Having so much difficulties to find an appropriate SMA for my hopefully future "proof of concept video" of our "SMA Unbalanced Mill", I present former other ideas, the time I can have the correct materials to work with.

The idea of the "Dilatation Unbalanced Mill", is to use kind of "balloons" with appropriate gas inside which will push apart the masses to create the unbalance.

It is indeed very the same system than the "SMA Unbalanced Mill" but with the "balloons" (or any kind of expandable volume) as actuators.

Here is a raw schematic of en example of the idea: