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Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)最新文献

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A practical test of a Bi-Te thermoelectric waste heat generator system in an incinerator using oil for heat transfer 在焚化炉中用油传热的Bi-Te热电废热发生器系统的实际试验
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843394
S. Kagawa, M. Sakamoto, N. Hirayama
{"title":"A practical test of a Bi-Te thermoelectric waste heat generator system in an incinerator using oil for heat transfer","authors":"S. Kagawa, M. Sakamoto, N. Hirayama","doi":"10.1109/ICT.1999.843394","DOIUrl":"https://doi.org/10.1109/ICT.1999.843394","url":null,"abstract":"Aiming at the utilization of low temperature thermal energy, a thermoelectric generator was applied to a municipal solid waste incinerator. The generator consisted of 60 BiTe thermoelectric modules. In the system, oil was used on the hot side as the heat transfer medium and water was used on the cold side. The electric output obtained from the system was 535 W under the conditions of 34 degC at cold side (water) and 261 degC at hot side (oil). A running test was carried out with 22 times on/off heat cycles. The accumulated operating time was 115 hours. No significant degradation of the thermoelectric module was observed throughout the test period. The energy conversion efficiency of the thermoelectric generator was measured at 2.8%.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132324119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Further development of "self-powered boilers" “自供电锅炉”的进一步发展
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843339
D. Alien, W. Mallon
{"title":"Further development of \"self-powered boilers\"","authors":"D. Alien, W. Mallon","doi":"10.1109/ICT.1999.843339","DOIUrl":"https://doi.org/10.1109/ICT.1999.843339","url":null,"abstract":"The concept of \"self-powered\" appliances is one where a normally flame-heated appliance generates enough electricity also to operate its electrical components, and therefore the unit operates free from the electric grid. This would be in contrast to cogeneration, in which surplus electric power is generated to be used for other functions beyond the principal purpose of the appliance. Thermoelectric generating technology is very well suited for \"self-powering\". A series of \"self-powered\" residential-scale hydronic central heating units, often referred to as \"boilers\" although the circulating water does not boil, have been built with thermoelectric generating modules incorporated. These are modifications of compact, wall-mounted, highly efficient units that are a standard in the Netherlands and also popular in Great Britain and northern Germany. As well as adding the thermoelectrics, these modifications have involved conversion of the existing AC power consumers to DC wherever possible within the unit and in other ways reducing electric power demand. Each of the units built in the development phase has been more prototypic and more spartan in its electricity need. The present objective is a 22 kW/sub th/ (75,000 BTU/hr) heating unit that runs on 55 to 60 W/sub el/. Twenty of these units are being built and will be field tested in 1999-2000. It appears that the case can be made that the \"self-powered boiler\" is marketable now in economies such as the Netherlands, where the price gap between natural gas and electricity is wide, the prices of both are high and where comfort heating is utilized a large fraction of the year.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132551034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Shape effect of resistance and thermoelectric power for BiSb in a magnetic field 磁场中铋酸铋电阻和热电功率的形状效应
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843378
Y. Hasegawa, H. Okumura, N. Kondo, N. Shuto, S. Yamaguchi, N. Sato
{"title":"Shape effect of resistance and thermoelectric power for BiSb in a magnetic field","authors":"Y. Hasegawa, H. Okumura, N. Kondo, N. Shuto, S. Yamaguchi, N. Sato","doi":"10.1109/ICT.1999.843378","DOIUrl":"https://doi.org/10.1109/ICT.1999.843378","url":null,"abstract":"The measurement of the Seebeck coefficient and resistivity was performed for a direction of the axis of the single crystal of bismuth-antimony in a magnetic field. The magnetic field effects were observed experimentally. We calculated the shape effects on the sample of the magnetic field using a two-dimensional computer code; effects studied included the Hall effect, thermoelectric effect, Nernst effect, and the Leduc-Righi effect. Considering phenomenological equations, we compared experimental results utilizing single crystal bismuth-antimony and calculations. The results are in good agreement between 0 and 4 Tesla. It is thus shown both by experiment and calculation that the electrode shape of the thermoelectric element causes variation in the Seebeck coefficient and resistivity.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130439936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Thermodynamic analysis of the composition of the condensed and gas-vapor phases of Bi/sub 2/Te/sub 3/-based solid solutions doped with organic and inorganic haloid compounds 掺有有机和无机卤化物的Bi/sub 2/Te/sub 3基固溶体凝聚态和气相组成的热力学分析
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843488
O. B. Sokolov, S. Skipidarov, N. I. Duvankov
{"title":"Thermodynamic analysis of the composition of the condensed and gas-vapor phases of Bi/sub 2/Te/sub 3/-based solid solutions doped with organic and inorganic haloid compounds","authors":"O. B. Sokolov, S. Skipidarov, N. I. Duvankov","doi":"10.1109/ICT.1999.843488","DOIUrl":"https://doi.org/10.1109/ICT.1999.843488","url":null,"abstract":"Thermodynamic analysis was made with the help of a personal computer. A thermodynamic method for the identification of characteristics for the equilibrium of heterogeneous systems based on the principle of maximum entropies was taken as a basis for the algorithm of the software complex. Thermodynamic, thermophysical and thermochemical characteristics of individual materials were taken as the basis of the information contained in the database. Thermodynamic calculations of the composition of condensed and gas-vapor phases of Bi/sub 2/Te/sub 3/-based solid solutions for particular conditions of the synthesis with the application of various dopants has been affected. Research has been undertaken into the behaviour of haloid-containing dopants in gas-vapor and condensed liquid and solid phases depending on the type of a dopant: organic haloid compounds, inorganic haloid compounds. The effect of haloid-containing dopants on thermoelectric characteristics has been studied.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131607023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Zone inversion in the Bi/sub 2/Se/sub 3/ rich side of Bi/sub 2/Te/sub 3/-Bi/sub 2/Se/sub 3/ solid solution 在Bi/sub - 2/Te/sub - 3/-Bi/sub - 2/Se/sub - 3/固溶体富侧的Bi/sub - 2/Se/sub - 3带反转
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843405
H. Ha, D. Hyun, B. Yoo, N. V. Kolomoets, J. Shim
{"title":"Zone inversion in the Bi/sub 2/Se/sub 3/ rich side of Bi/sub 2/Te/sub 3/-Bi/sub 2/Se/sub 3/ solid solution","authors":"H. Ha, D. Hyun, B. Yoo, N. V. Kolomoets, J. Shim","doi":"10.1109/ICT.1999.843405","DOIUrl":"https://doi.org/10.1109/ICT.1999.843405","url":null,"abstract":"Solid solutions of Bi/sub 2/Te/sub 3/-Bi/sub 2/Se/sub 3/ pseudo-binary system were mechanically alloyed, cold pressed and then sintered at different temperatures between 250/spl deg/C and 380/spl deg/C. By sintering specimens for several hours in evacuated ampoules, the equilibrium thermoelectric properties were obtained. Significant differences in thermoelectric properties were found between the sintered materials and the single crystals grown by the conventional solidification processes. Besides the well known composition of Bi/sub 2/Te/sub 2/Se, singular properties were found at the composition of Bi/sub 2/TeSe/sub 2/. In the Bi/sub 2/Se/sub 3/ rich region, the thermal conductivity at room temperature showed unusual behaviour. The most plausible explanation for such phenomena appeared to be the inversion of conduction and valence zones. Detailed examination of the temperature dependence of the electrical conductivity confirmed this explanation.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134623543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
XPS study of oxidation process on Bi/sub 2/Te/sub 3/ surface Bi/ sub2 /Te/ sub3 /表面氧化过程的XPS研究
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843404
I. Bando, K. Koizumi, K. Daikohara, Y. Oikawal, V. A. Kulbachinski, H. Ozaki
{"title":"XPS study of oxidation process on Bi/sub 2/Te/sub 3/ surface","authors":"I. Bando, K. Koizumi, K. Daikohara, Y. Oikawal, V. A. Kulbachinski, H. Ozaki","doi":"10.1109/ICT.1999.843404","DOIUrl":"https://doi.org/10.1109/ICT.1999.843404","url":null,"abstract":"The oxidation process on the Bi/sub 2/Te/sub 3/ surface was investigated by X-ray photoelectron spectroscopy (XPS). The oxidized surface was found to have the Bi-O-Te structure with a definite thickness. The estimated oxide thicknesses from the XPS results were saturated at 1.5-2.0 nm, which was about two quintuple oxide layers thick in our oxide model. Experimental data were compared to a modified Cabrera-Mott oxidation rate model and the oxidation time dependence of the oxide thickness could be fitted very well.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127064613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermoelectric cooler for space microgravity experiment 空间微重力实验用热电冷却器
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843395
Zu Tiezhu, Qin Yaqing, Zhang Jianzhong, W. Qinghua, Yao Yonglong, Liu Fang, Hu Liang
{"title":"Thermoelectric cooler for space microgravity experiment","authors":"Zu Tiezhu, Qin Yaqing, Zhang Jianzhong, W. Qinghua, Yao Yonglong, Liu Fang, Hu Liang","doi":"10.1109/ICT.1999.843395","DOIUrl":"https://doi.org/10.1109/ICT.1999.843395","url":null,"abstract":"On May 19, 1999, during eight days the space microgravity experiment in Chinese \"SJ-5\" satellite was first completed by Nation Microgravity Lab of Institute of Mechanics and fruitful data have been achieved. The space microgravity experiment used the multi-layer facility made by NML. The NML has used thermoelectric cooler (TEC) by Tianjin Institute of Power Sources (TIPS) as thermal control device which supplied more than thirty kinds of different temperature gradient for liquid pool facility. The maximum temperature difference of liquid pool came about 40/spl deg/C, the temperature of one side was 90/spl deg/C. The paper describes the structure of the liquid pool unit, introduces the design considerations, the technology and screen method of TEC, gives the performance and test data of two types of TECs. The experiment has been proven that the design of the TEC is reasonable. The TECs have excellent performances and are high reliable electronic devices for space, applications.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115333486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Development of a burst voltage measurement system for high-resolution contact resistance tests of thermoelectric heterojunctions 用于热电异质结高分辨率接触电阻测试的突发电压测量系统的研制
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843380
R. Buist, S. Román
{"title":"Development of a burst voltage measurement system for high-resolution contact resistance tests of thermoelectric heterojunctions","authors":"R. Buist, S. Román","doi":"10.1109/ICT.1999.843380","DOIUrl":"https://doi.org/10.1109/ICT.1999.843380","url":null,"abstract":"The recent enhanced search for high ZT thermoelectric (TE) materials has brought on new challenges to accurately characterize the contact resistance between the TE material and selected metallic bonds. Current technology for contact resistance measurements involve the sequential, physical placement of voltage probe or probes along the surface, curve-fitting the data and subsequent interpolation of voltage discontinuities at the heterojunction. An improved technology has now been developed that utilizes a burst voltage measurement system which rapid tests and re-tests voltage with very high resolution and speed. This is done by starting a burst test and linearly dragging a voltage probe across the heterojunction. The resulting voltage profile yields accuracy, speed and resolution beyond that available with the \"move and reset\" technology currently employed.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115384274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Physical properties of NaCo/sub 2/O/sub 4/ and the related oxides: strongly correlated layered oxides as thermoelectric materials NaCo/ sub2 /O/ sub4 /及其相关氧化物的物理性质:作为热电材料的强相关层状氧化物
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843454
I. Terassaki
{"title":"Physical properties of NaCo/sub 2/O/sub 4/ and the related oxides: strongly correlated layered oxides as thermoelectric materials","authors":"I. Terassaki","doi":"10.1109/ICT.1999.843454","DOIUrl":"https://doi.org/10.1109/ICT.1999.843454","url":null,"abstract":"Since we unexpectedly discovered a large thermoelectric power for NaCO/sub 2/O/sub 4/ in 1996, we have been searching a possibility to synthesize a new thermoelectric material using 3d transition metal oxides. In some transition-metal oxides called \"strongly correlated systems\", the Coulomb repulsion between electrons is strong enough to break down a conventional band picture. Thus, in such a case, the material parameters can exceed the limitation of band calculations, and we hope that NaCo/sub 2/O/sub 4/ is indeed the case. Further investigation has revealed that NaCo/sub 2/O/sub 4/ shows unusually low thermal conductivity, possibly owing to the disorder in the Na layer. This indicates that the layered structure is as important for the thermoelectric performance as the strong correlation.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115630438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Thermoelectric properties of Sb-doping in the TiNiSn/sub 1-x/Sb/sub x/ half-Heusler system Sb掺杂TiNiSn/sub - 1-x/Sb/sub -x/ half-Heusler体系的热电性质
Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407) Pub Date : 1999-08-29 DOI: 10.1109/ICT.1999.843398
S. Bhattacharya, V. Ponnambalam, A. Pope, P. Alboni, Y. Xia, T. Tritt, S. J. Poon
{"title":"Thermoelectric properties of Sb-doping in the TiNiSn/sub 1-x/Sb/sub x/ half-Heusler system","authors":"S. Bhattacharya, V. Ponnambalam, A. Pope, P. Alboni, Y. Xia, T. Tritt, S. J. Poon","doi":"10.1109/ICT.1999.843398","DOIUrl":"https://doi.org/10.1109/ICT.1999.843398","url":null,"abstract":"Half Heusler alloys, MNiSn (M=Zr, Hf, Ti) systems, have recently been studied for their potential as new thermoelectric materials. They have shown both high thermopower (/spl alpha/) values (40-250 /spl mu/V/K) and reasonable values of electrical resistivity, /spl rho/ (0.1-8 m/spl Omega/-cm). However, the thermal conductivity in these systems is high for a potential thermoelectric material, on the order of 4-10 W/m-K. In an effort to reduce the thermal conductivity through alloy scattering, Sb is substituted on the Sn site with compositions TiNiSn/sub 1-x/Sb/sub x/ where x=0 to 0.1. With this substitution, the thermopower is only slightly reduced while the resistivity is reduced by approximately one order of magnitude resulting in marked improvement in the power factor (/spl alpha//sup 2/T//spl rho/). Thermopower, resistivity, and thermal conductivity have been measured on a series of Sb doped TiNiSn samples from 10 K<T<300 K. Heat capacity and Hall measurements on these same samples are measured from 2 K to 350 K and will be discussed. A room temperature power factor in this system has been calculated to be as high as 1.4 W/m-K, making these materials interesting for potential thermoelectric applications.","PeriodicalId":253439,"journal":{"name":"Eighteenth International Conference on Thermoelectrics. Proceedings, ICT'99 (Cat. No.99TH8407)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116423001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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