Contents of Journal of Thermoelectricity, No.1, 1996
O.J.Luste. Reliability of Thermoelectric Devices (Review)
A review of papers on the reliability of thermoelectric devices during the last 20 years is given.
O.J.Luste. Perpetuum Mobile in Thermoelectricity
Descriptions of devices with the efficiency of unity or more than unity are met in the scientific and patent literature on thermoelectrics. The examples of such descriptions have been examined and their analysis in view of the thermodynamics laws have been given.
D.P.Belotskii, O.N.Manik. On the Relationship Between Thermoelectric Material Melts Properties and Structures and the State Diagrams
The paper studied the regularizes of thermoelectric material electron melts structure formation and their relationship with the state diagram. The classification of chemical compounds by the pattern of chemical bonds with the establishment of the cleavage possibility on the phase diagrams has been conducted using the complex examination of electron states, coordination structure, physical and chemical properties, and cation-anion interactions in liquid melts as the base.
A.I.Medved, G.N.Logvinov. Thermo-EMF of Fe-Ni Alloys in the Martensite-Austenite States
Seebeck coefficient of Fe-Ni system alloys (H10, H15, H18, H20, H25, H28, H30, H31) has been investigated combined with the other physical properties (Young's module, electric resistivity, density, magnetic saturation induction and X-ray analysis) in the austenite, ferrite and martensite states. Concentration dependencies of the integral Seebeck coefficient coupled with copper at the room temperatures exhibit anomalies in the regions of about 20 and 30 mas. % of Ni both in the fired and in the hardened states. The alloy H30 served as an example to analyse complex and nonadditive dependencies of thermoelectric coefficient on the content of the residual and reversed austenite in the two-phase bcc-fcc-states formed by ALPHA-conversions. The analogous anomalies of the alloy thermoelectric coefficient irrespective of the austenite morphology have been found at one of the phase volume content about 25-30 %.The dependence of H30 alloy thermoelectric coefficient on the content of the reversed austenite has the exponential character up to 45 %.
V.Ja.Mikhailovsky, K.A.Chervinsky, L.T.Strutinskaja. Investigation of Catalysts Used in Heat Sources for Thermoelectric Generators
Critical conditions of reaction ignition (start) at combined fuel and air supply to catalyst used in heat sources for thermoelectric generators have been considered. The effect of carrier nature, active phase composition supply rate and fuel concentration on the temperature of reaction ignition has been studied. Catalyst activity and stability of its temperature characteristics has been accessed in two regions of the process under consideration: kinetic and diffusion.
V.A.Demchenko. Thermoelectric Figure of Merit and Superconducting Transition Temperature
Based on empirically found correlation of HTSC-cuprate superconducting transition temperature and thermoelectric coefficient at room temperature a relation has been obtained for thermoelectric figure of merit and superconducting transition temperature. Correlation found in this paper is adequate for reducing the field of search for metal oxides with the maximum thermoelectric figures of merit. It has been shown that the maximum thermoelectric figure of merit can be reached in metal oxides that pass to a superconducting state at a temperature of 5.5 K. Estimation of the maximum thermoelectric figure of merit of metal oxide orthorombic phase gives the value of 3.9 10-5 K-1 which is by 2 orders of magnitude less compared t0 the best values of semiconductor materials. Key words: HTSC, empirical data, thermoelectric figure of merit, superconducting transition temperature, orthorhombic phase.
L.I.Anatychuk. High-Power Thermoelectric Generators
Increasing attention is paid at present to the possibility of utilizing the waste heat from various objects. Among them of particular interest is the waste heat from the nuclear and thermal power sets, from the large power-intensive plants, from various internal combustion engines both stationary and installed in transportation facilities. Therefore, the statement of research and the development of high-performance thermoelectric generators on the level of heat supply temperature 150-250 C and heat removal temperature 40-80 C is most expedient. Investigations to create these generators and their development have been described.
V.V.Razinkov, V.V.Gritsai, N.K.Tsypko. High-Sensitive Thermoelectric Radiation Detectors
10 types of High-Sensitive Thermoelectric Radiation Detectors have been developed in Institute of Thermoelectricity, Chernivtsi, Ukraine. The paper describes perameters and structure of these detectors.
N.N.Glemba. A Test Stand for Large-Power Thermoelectric Conditioners
The present work gives the description of the test stand intended for investigation of large power thermoelectric water coolers (TEWC) in wide temperatures of coolants, under different supply conditions and thermal loads.
V.Ja.Mikhailovsky. Catalytic Heat Sources for Thermoelectric Generators
0,001 to 8 kW catalyst heat sources as a part of TEG have been developed and investigated. Analysis of different heat sources was carried out with respect to completeness of hydrocarbons burning. It was found out that in a number of cases thermal power of a heat source as a part of a TEG is confined to a catalyst emitting surface. Mechanisms of temperature characteristics stabilization of heat sources were considered in relation to the used fuel type.
Regulations of the International Thermoelectric Academy
VII International School on Thermoelectricity
Academician of The International Thermoelectric Academy Gurevich Yuri Genrikchovich