thermodynamics of cores.2nd law breach?

[profitis]

@pw..twas confirmed by multiple tests and measurments over the years by multiple physicists,engineers and library textbooks.its a thermodynamic 'peak' that happens when a substance undergoes phase change.in this case it is exothermic.

[profitis]

@milehigh quote 'on the materials side lower temperature means less order and greater entropy'.this statement of yours is incorrect.the truth is the opposite.

[picowatt]

@pw..twas confirmed by multiple tests and measurments over the years by multiple physicists,engineers and library textbooks.its a thermodynamic 'peak' that happens when a substance undergoes phase change.in this case it is exothermic.

Althouh the use of magnetocaloric materials in a system that causes transition of the Curie temperature increases the magnetocaloric effect and hence the pumping efficieny in refrigeration applications, I have never seen any research that indicates this process is more than 100% efficient. 

Even iron exhibits the magnetocaloric effect, but some materials like Gd and Pr alloys and salts exhibit the effect to a much greater degree.  But even with regard to materials that exhibit the giant magnetocaloric effect, I have never seen any research that indicates even these materials are somehow more than 100% efficient. 

There has been a great deal of research over the past 100 years regarding use of the magnetocaloric effect for cooling, cryocooling, and more recently, as a replacement for the mechanical heat pumps in home refrigeration.       

PW

[profitis]

@pw there has also been claimed over the years of discrepencies in those thermodynamics regarding magnetocaloric effect,why hasnt those discrepencies been put under the magnifying glass and thouroughly dealt with?in public at least?

[picowatt]

@pw there has also been claimed over the years of discrepencies in those thermodynamics regarding magnetocaloric effect,why hasnt those discrepencies been put under the magnifying glass and thouroughly dealt with?in public at least?

I have never seen such claims.  But in using the magnetocaloric effect as it has been to approach zero degree Kelvin, one would think all manner of operation would have been placed "under the magnifying glass".

PW