Characterization of Thermoelectric Power Generation Modules Made from New Materials

2005 ◽  
Vol 886 ◽  
Author(s):  
Jarrod L. Short ◽  
Jonathan D'Angelo ◽  
Adam D. Downey ◽  
Michael A. Pajor ◽  
Ed Timm ◽  
...  
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Measurement System ◽  
Figure Of Merit ◽  
Temperature Gradients ◽  
Michigan State University ◽  
State University ◽  
New Materials ◽  
Made In

ABSTRACTLead-Antimony-Silver-Tellurium (L-A-S-T) materials, synthesized at Michigan State University, show promising thermoelectric properties at high temperatures for use in power generation applications. Recent scaled-up quantities of L-A-S-T show a ZT=1.4 at 700 K approaching the figure of merit for samples made in small quantities. These materials are of great interest for power generation applications with hot side temperatures in the range of 600-800 K. Developing these materials into working devices requires minimization of the thermal and electrical parasitic contact resistances, so various fabrication methods are under investigation. To examine each method, a new measurement system has been developed to characterize these devices under various load and temperature gradients. An introduction to the system will be presented, as well as results for devices made of the L-A-S-T materials.

scholarly journals Greenhouse Whitefly Control on Petunias, Michigan, 1993

1994 ◽  
Vol 19 (1) ◽  
pp. 333-333
Author(s):  
D. R. Smitley ◽  
T. W. Davis
Keyword(s):  
Michigan State University ◽  
State University ◽  
Single Plant ◽  
Greenhouse Whitefly ◽  
Clay Pots ◽  
Made In

Abstract Petunia plants were raised from seed in 6 inch clay pots for 10 wks reaching a height of 10-12 inches in a research greenhouse infested with whitefly at Michigan State University. Each treatment including a control was replicated 6 times. Each replicate was a single plant. Precounts of 5 leaves taken randomly from each plant were completed on 14 and 21 Jul. All immature whitefly (pupae and larvae) were counted. The treatments were blocked based on these precounts. Applications were applied on 22, 30 Jul and 6 Aug with a R&D CO2 sprayer with a single 8008 nozzle at 50 psi until first runoff. Postcounts were made in the same manner as precounts on 28 Jul, 4, 12 Aug.

scholarly journals Ultra-thin films for plasmonics: a technology overview

2015 ◽  
Vol 4 (3) ◽  
Author(s):  
Radu Malureanu ◽  
Andrei Lavrinenko
Keyword(s):  
Thin Films ◽  
Surface Roughness ◽  
Support Surface ◽  
New Materials ◽  
Infra Red ◽  
Plasmon Polaritons ◽  
Plasmon Propagation ◽  
Made In

AbstractUltra-thin films with low surface roughness that support surface plasmon-polaritons in the infra-red and visible ranges are needed in order to improve the performance of devices based on the manipulation of plasmon propagation. Increasing amount of efforts is made in order not only to improve the quality of the deposited layers but also to diminish their thickness and to find new materials that could be used in this field. In this review, we consider various thin films used in the field of plasmonics and metamaterials in the visible and IR range. We focus our presentation on technological issues of their deposition and reported characterization of film plasmonic performance.

Reply to the ‘comment on “$ per W metrics for thermoelectric power generation: beyond ZT”’ by G. Nunes, Jr, Energy Environ. Sci., 2014, 7, DOI: 10.1039/C3EE43700K

2014 ◽  
Vol 7 (10) ◽  
pp. 3441-3442 ◽  
Author(s):  
Shannon K. Yee ◽  
Saniya LeBlanc ◽  
Kenneth E. Goodson ◽  
Chris Dames
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Thermoelectric Power Generation ◽  
Made In ◽  
Energy Environ

The comment by Nunes suggests a welcome refinement to an approximation made in the original paper.

Hall Effect Measurements on New Thermoelectric Materials

2003 ◽  
Vol 793 ◽  
Author(s):  
Jarrod Short ◽  
Sim Loo ◽  
Sangeeta Lal ◽  
Kuei Fang Hsu ◽  
Eric Quarez ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Electrical Conductivity ◽  
Hall Effect ◽  
Measurement System ◽  
Material Properties ◽  
Figure Of Merit ◽  
New Materials ◽  
Temperature Dependent ◽  
Additional Insight ◽  
Hall Effect Measurements

ABSTRACTIn the field of thermoelectrics, the figure of merit of new materials is based on the electrical conductivity, thermoelectric power, and thermal conductivity of the sample, however additional insight is gained through knowledge of the carrier concentrations and mobility in the materials. The figure of merit is commonly related to the material properties through the B factor which is directly dependent on the mobility of the carriers as well as the effective mass.To gain additional insight on the new materials of interest for thermoelectric applications, a Hall Effect system has been developed for measuring the temperature dependent carrier concentrations and mobilities. In this paper, the measurement system will be described, and recent results for several new materials will be presented.

The Mackenzie Mountains EarthScope Project: Studying Active Deformation in the Northern North American Cordillera from Margin to Craton

2019 ◽  
Vol 91 (1) ◽  
pp. 521-532 ◽  
Author(s):  
Michael G. Baker ◽  
David C. Heath ◽  
Derek L. Schutt ◽  
Richard C. Aster ◽  
Joel F. Cubley ◽  
...  
Keyword(s):  
Michigan State University ◽  
Canadian Cordillera ◽  
State University ◽  
Geographic Variations ◽  
Active Deformation ◽  
North American Cordillera ◽  
Colorado State University ◽  
Mackenzie Mountains ◽  
The University

Abstract The Mackenzie Mountains EarthScope Project—a collaboration between Colorado State University, the University of Alaska, Michigan State University, and Yukon College—deployed a roughly linear, 40-station broadband seismographic network. This network crossed the actively deforming Northern Canadian Cordillera and the Mackenzie Mountains in Yukon, Canada; it also extended into the Canadian Shield in Northwest Territories, Canada. The array was deployed between July 2016 and August 2018 (with four pilot stations installed in July 2015 and three extended stations operating through August 2019) coinciding with and complementing the deployment of the EarthScope Transportable Array to Alaska and western Canada. In this article, we present an overview of project scientific objectives, station configurations, and site conditions; discuss environmental challenges, including those that resulted in station downtime (e.g., spring flooding and encounters with bears); and suggest potential solutions to such subarctic challenges for the benefit of future deployments in comparable regions. We also include an initial characterization of seasonal and geographic variations in ambient seismic noise for the northwestern Canadian Cordillera.

scholarly journals Observation and Characterization of the Thermoelectric Power Generation

2017 ◽  
Vol 8 (1) ◽  
pp. 94
Author(s):  
A. J. Jin ◽  
Q. Li ◽  
D. Liu ◽  
C. An ◽  
Y. Zhang
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Alternative Energy ◽  
Response Curve ◽  
High Efficiency ◽  
Total Output ◽  
Large Power ◽  
Thermoelectric Power Generation ◽  
New Findings

Authors report methodical studies on some novel, alternative energy technologies, and produced results of a thermoelectric power generation (TEPG) system. For the sake of evaluating critical thermoelectric (TE) features, they have invented the state-of-the-art equipment that has important specification capability. The studies cover the efficiency and many aspects of TEPG features as follows. A thermoelectric module is measured in situ that includes TE efficiency, force response curve, current-voltage (I-V) and power-voltage (P-V) characterization, and power temperature (P-T) response curve. They have improved both the higher total output power and the more efficient TEPG efficiency than their comparison TE devices and systems in their studies. In addition, authors will present a series of design, construction, and characterization of a thermal electric generation system which aims to achieve a large power output and high efficiency for the energy harvesting application. Furthermore, their studies lead to important knowledge of TEPG systems in terms of multi-stack modules and of the optimization in TEPG applications. Finally, the prototypes are built for both the tabletop and other applications with new findings. Several sets of prototype TEPG are developed for experimental investigation and data analysis, followed by the summary and conclusions based on the data.

Growth and characterization of Ag–Al2O3 composites thin films for thermoelectric power generation applications

2021 ◽  
Author(s):  
Inaam Ullah ◽  
M. Tamseel ◽  
Mongi Amami ◽  
Muhammad Rizwan Javed ◽  
K. Javaid ◽  
...  
Keyword(s):  
Thin Films ◽  
Power Generation ◽  
Thermoelectric Power ◽  
Thermoelectric Power Generation

Characterization of New Materials in A Four-Sample Thermoelectric Measurement System

2000 ◽  
Vol 626 ◽  
Author(s):  
Nishant A. Ghelani ◽  
Sim Y. Loo ◽  
Duck-Young Chung ◽  
Sandrine Sportouch ◽  
Stephan de Nardi ◽  
...  
Keyword(s):  
Measurement System ◽  
Thermoelectric Materials ◽  
Measurement Techniques ◽  
New Materials ◽  
Thermo Electric ◽  
New Synthesis ◽  
Wide Range ◽  
Materials Research ◽  
Computer Controlled

ABSTRACTSeveral new materials in the CsBi4Te6, A2Bi8Se13, (A = K, Rb, Cs), HoNiSb, Ba/Ge/B (B = In, Sn), and AgPbBiQ3 (Q = S, Se, Te) systems have shown promising characteristics for thermoelectric applications. New synthesis techniques are able to produce samples at much higher rates than previously possible. This has led to a persistent challenge in thermoelectric materials research of rapid and comprehensive characterization of samples. This paper presents a description of a new 4-sample transport measurement system and the related measurement techniques. Special features of the system include fully computer-controlled operation (implemented in LabView™) for simultaneous measurement of electrical conductivity, thermo-electric power, and thermal conductivity. This system has been successfully used to characterize several new thermoelectric materials (including some of the above-mentioned compounds) and reference materials exhibiting a wide range of thermal conductivities.

Enhanced ZT and attempts to chemically stabilize Cu2Se via Sn doping

2016 ◽  
Vol 4 (43) ◽  
pp. 17225-17235 ◽  
Author(s):  
Trevor P. Bailey ◽  
Si Hui ◽  
Hongyao Xie ◽  
Alan Olvera ◽  
Pierre F. P. Poudeu ◽  
...  
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Figure Of Merit ◽  
Thermoelectric Figure Of Merit ◽  
Material Degradation ◽  
Thermoelectric Figure ◽  
Thermoelectric Power Generation ◽  
Sn Doping

Doping Cu2Se with Sn enhances the thermoelectric figure of merit and decreases material degradation in thermoelectric power generation conditions.

Enhanced Thermoelectric Figure of Merit in P-Type DDy(Fe1-XCox)4Sb12

2011 ◽  
Vol 170 ◽  
pp. 240-243 ◽  
Author(s):  
Gerda Rogl ◽  
Andriy Grytsiv ◽  
Peter Rogl ◽  
Ernst Bauer ◽  
Michael Zehetbauer
Keyword(s):  
Power Generation ◽  
Thermoelectric Power ◽  
Figure Of Merit ◽  
High Efficiency ◽  
Thermoelectric Figure Of Merit ◽  
Thermoelectric Figure ◽  
Thermoelectric Power Generation ◽  
Temperature Range ◽  
P Type ◽  
Co Concentrations

Thermoelectric (TE) properties of skutterudites DDy(Fe1-xCox)4Sb12 for 0.2  x 0.3 were studied in the temperature range from 300 K to 800 K and compared with values for x = 0. Didymium (DD, 4.76 mass % Pr and 95.24 mass % Nd) was used as natural double filler. At Co-concentrations 0.225  x  0.25 maximum TE-performance was obtained with impressive power-factors (4.5 mW/mK2) and ZTs (ZT1.2 at 700 K). Furthermore these skutterudites maintain the high ZT over a broad temperature range providing an excellent p-leg for high-efficiency thermoelectric power generation.

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