Next Article in Journal
A Study on Drilling High-Strength CFRP Laminates: Frictional Heat and Cutting Temperature
Next Article in Special Issue
Influence of Ag on the Properties of Ca0.9Yb0.1MnO3 Sintered Ceramics
Previous Article in Journal
Influence of the Heat Treatment on the Particles Size and on the Crystalline Phase of TiO2 Synthesized by the Sol-Gel Method
Previous Article in Special Issue
Effects of Pr and Yb Dual Doping on the Thermoelectric Properties of CaMnO3
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessFeature PaperArticle
Materials 2018, 11(12), 2365; https://doi.org/10.3390/ma11122365

Energy Harvesting from a Thermoelectric Zinc Antimonide Thin Film under Steady and Unsteady Operating Conditions

1
Department of Energy Technology, Aalborg University, Pontoppidanstraede 111, DK-9220 Aalborg East, Denmark
2
Centre for Materials Crystallography, Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, DK-8000 Aarhus C, Denmark
*
Author to whom correspondence should be addressed.
Received: 4 November 2018 / Revised: 19 November 2018 / Accepted: 20 November 2018 / Published: 24 November 2018
(This article belongs to the Special Issue Recent Advances in Thermoelectric Materials)
  |  
PDF [11005 KB, uploaded 24 November 2018]
  |  

Abstract

In practice, there are some considerations to study stability, reliability, and output power optimization of a thermoelectric thin film operating dynamically. In this study stability and performance of a zinc antimonide thin film thermoelectric (TE) specimen is evaluated under transient with thermal and electrical load conditions. Thermoelectric behavior of the specimen and captured energy in each part of a thermal cycle are investigated. Glass is used as the substrate of the thin film, where the heat flow is parallel to the length of the thermoelectric element. In this work, the thermoelectric specimen is fixed between a heat sink exposed to the ambient temperature and a heater block. The specimen is tested under various electrical load cycles during a wide range of thermal cycles. The thermal cycles are provided for five different aimed temperatures at the hot junction, from 160 to 350 °C. The results show that the specimen generates approximately 30% of its total electrical energy during the cooling stage and 70% during the heating stage. The thin film generates maximum power of 8.78, 15.73, 27.81, 42.13, and 60.74 kW per unit volume of the thermoelectric material (kW/m3), excluding the substrate, corresponding to hot side temperature of 160, 200, 250, 300, and 350 °C, respectively. Furthermore, the results indicate that the thin film has high reliability after about one thousand thermal and electrical cycles, whereas there is no performance degradation. View Full-Text
Keywords: thermal cycling; thin film thermoelectric generator (TFTEG); electrical load cycling; transient behavior; zinc antimonide; semiconductor thermal cycling; thin film thermoelectric generator (TFTEG); electrical load cycling; transient behavior; zinc antimonide; semiconductor
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Mirhosseini, M.; Rezania, A.; Iversen, B.; Rosendahl, L. Energy Harvesting from a Thermoelectric Zinc Antimonide Thin Film under Steady and Unsteady Operating Conditions. Materials 2018, 11, 2365.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top