Abstract
Thermomagnetic generators allow direct conversion of heat energy to electrical energy. Temperature cycling about or near the Curie temperature causes changes in magnetization, resulting in time variant magnetic flux and induced voltage in a surrounding conductor. Numerical analyses of regenerative thermomagnetic generators with perfect regeneration have been performed for three working materials: iron, gadolinium, and Ho69Fe31. Power density above 20 W/kg of shunt material and efficiency approaching Carnot limits are possible over temperature differences of 50 K. Analytical studies performed during the 1950s predicted maximum power density less than 7 W/kg and efficiency less than 1% for nonregenerative cycles.
References
14
Referenced
53
{'key': '2024020503115664200_r1'}
10.1016/0011-2275(77)90225-9
/ Cryogenics (1977)10.1063/1.325010
/ J. Appl. Phys. (1978)10.1063/1.323176
/ J. Appl. Phys. (1976){'key': '2024020503115664200_r5'}
{'key': '2024020503115664200_r6'}
{'key': '2024020503115664200_r7'}
{'key': '2024020503115664200_r8', 'first-page': '300', 'volume': '25', 'year': '1948', 'journal-title': 'Electr. Commun.'}
/ Electr. Commun. (1948){'key': '2024020503115664200_r9'}
10.1063/1.1735054
/ J. Appl. Phys. (1959){'key': '2024020503115664200_r11'}
{'key': '2024020503115664200_r12', 'first-page': '1146', 'volume': 'Mag-13', 'year': '1977', 'journal-title': 'IEEE Trans. Magn.'}
/ IEEE Trans. Magn. (1977){'key': '2024020503115664200_r13'}
{'key': '2024020503115664200_r14'}
Dates
Type | When |
---|---|
Created | 22 years, 6 months ago (Feb. 14, 2003, 2:07 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 4, 2024, 10:12 p.m.) |
Indexed | 11 months, 1 week ago (Sept. 19, 2024, 10:55 a.m.) |
Issued | 41 years, 1 month ago (Aug. 1, 1984) |
Published | 41 years, 1 month ago (Aug. 1, 1984) |
Published Print | 41 years, 1 month ago (Aug. 1, 1984) |
@article{Kirol_1984, title={Numerical analysis of thermomagnetic generators}, volume={56}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.334015}, DOI={10.1063/1.334015}, number={3}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Kirol, Lance D. and Mills, James I.}, year={1984}, month=aug, pages={824–828} }