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Author Topic: JTEC - Johnson Thermo-Electrochemical Convertor  (Read 1145 times)
djh
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« on: August 16, 2016, 03:47:09 PM »

Has anybody come across this outfit and their JTEC product? http://johnsonems.com/

It's an external combustion heat engine:

"The Johnson Thermo-Electrochemical Convertor (JTEC) is an all solid-state device that operates on the Ericsson cycle. Equivalent to Carnot, the Ericsson Cycle offers the maximum theoretical efficiency available from a converter operating between two temperatures. The JTEC system utilizes the electro-chemical potential of fluid pressure applied across a proton conductive membrane (PCM). The membrane and a pair of electrodes form a Membrane Electrode Assembly (MEA) similar to those used in fuel cells. However, in the JTEC the hydrogen circulates continually inside the device, which is different from a fuel cell in which hydrogen is consumed and must be continually replenished."

Proposed applications include generation of electricity from solar thermal.
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Cheers, Dave
djh
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« Reply #1 on: August 16, 2016, 03:51:20 PM »

The CEO, Lonnie Johnson, seems to have an interesting CV and quite a track record. He also runs a company designing metal-air batteries.
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dhaslam
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« Reply #2 on: August 16, 2016, 05:04:07 PM »

There seems to be some question marks relating to efficiency and temperature.   If very high temperature is needed  the number of applications is limited but   if  it works at low temperature there are a lot of applications  including geothermal,  exhaust heat from  engines  and  stored  solar energy.   Seven years  after the  winning the award the  idea doesn't seem to be making a lot of progress.
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