Accession Number : AD0422583

Title :   THEORY OF GALVANO-THERMOMAGNETIC ENERGY CONVERSION DEVICES. V. DEVICES CONSTRUCTED FROM ANISOTROPIC MATERIALS,

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : Harman, T. C. ; Honig, J. M. ; Tarmy, B. M.

Report Date : 28 DEC 1962

Pagination or Media Count : 5

Abstract : Operating characteristics of galvano-thermomagnetic generators and refrigerators for any anisotropic material are summarized in tabular form for both the longitudinal (thermoelectric) and transverse (Nernst) devices and for isothermal and adiabatic operating conditions. In the most general case, device performance is governed not only by the merit, but also by an anisotropy factor. This factor involves off-diagonal elements of the Nernst and Seebeck tensors for Nernst devices and diagonal elements of the Nernst and Seebeck tensors for thermoelectric devices. It is believed that the Umkehr effect (such as observed in Bi) is due to a nonvanishing diagonal component of the Nernst tensor. (Author)

Descriptors :   (*ENERGY CONVERSION, MAGNETIC FIELDS), (*THERMAL DIFFUSION, MAGNETIC FIELDS), (*ELECTRIC FIELDS, MAGNETIC FIELDS), (*THERMOELECTRICITY, ENERGY CONVERSION), ELECTRIC POWER PRODUCTION, REFRIGERATION SYSTEMS.

Distribution Statement : APPROVED FOR PUBLIC RELEASE