Metal–organic framework coated porous structures for enhanced thermoelectric performance

Date

2022-03-01

Author

Günay, Ahmet Alperen
Harish, Sivasankaran
Fuchi, Masanori
Kinefuchi, Ikuya
Lee, Yaerim
Shiomi, Junichiro

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

104
views

0
downloads

Self-powered sensors/transmitters can be operated by thermoelectric generators if the temperature difference across the device is maximized. Here, we demonstrate a novel strategy to increase the overall thermoelectric conversion efficiency near room temperature (≈30 °C) through enhancement of the heat transfer between the thermoelectric generator and the atmosphere by utilizing the latent heat of atmospheric water, radiative cooling, and an enhanced surface area. To maximize the sorption and emissivity, we coat porous copper substrates with metal-organic frameworks. Thermoelectric generators interfaced with these heat sinks exhibit a 50%–70% enhancement in the overall heat transfer coefficient owing to the increased surface area due to particle binding and the material properties of metal–organic frameworks. Furthermore, proof-of-concept experiments reveal an ≈100% increase in the total electromotive force generated by the thermoelectric generator within 30 min. Our study not only introduces a novel method to enhance the thermoelectric conversion efficiency, but also provides physical insight into the link between sorption and thermal processes.

Subject Keywords

Atmospheric water harvesting, Evaporative cooling, Metal-organic framework, Passive devices, Thermal management, Thermoelectric generator

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85124005445&origin=inward
https://hdl.handle.net/11511/96441

Journal

Energy Conversion and Management

DOI

https://doi.org/10.1016/j.enconman.2022.115289

Collections

Department of Mechanical Engineering, Article

Suggestions

OpenMETU
Core

Designing heat exchanger with spatially variable surface area for passive cooling of PEM fuel cell Ozden, Ender; Tolj, Ivan; Barbir, Frano (2013-03-01) The purpose of this work was to design a heat exchanger for a Polymer Electrolyte Membrane (PEM) fuel cell, which would ensure such a temperature profile along the fuel cell cathode channel resulting in close to 100% relative humidity along the channel without external humidification. To achieve this, 3D numerical simulations of a single PEM fuel cell were performed using commercial Computational Fluid Dynamics (CFD) software (ANSYS Fluent). Based on the simulation results a variable surface area finned hea...
Thermoelectric cooling of a pulsed mode 1064 nm diode pumped Nd: yag laser Yüksel, Yüksel; Okutucu Özyurt, Hanife Tuba; Oskay, Rüknettin; Department of Mechanical Engineering (2010) Since most of the energy input is converted to thermal energy in laser applications, the proper thermal management of laser systems is an important issue. Maintaining the laser diode and crystal temperature distributions in a narrow range during the operation is the most crucial requirement for the cooling of a laser system. In the present study, thermoelectric cooling (TEC) of a 1064 nm wavelength diode pumped laser source is investigated both experimentally and numerically. During the heat removal process...
Metal-Free Interconnecting Layer for Monolithic Perovskite/Organic Tandem Solar Cells with Enhanced Outdoor Stability Xu, Han; Merino, Luis Torres; Koc, Mehmet; Aydin, Erkan; Zhumagali, Shynggys; Haque, Md Azimul; Yazmaciyan, Aren; Sharma, Anirudh; Villalva, Diego Rosas; Hernandez, Luis Huerta; De Bastiani, Michele; Babics, Maxime; Isikgor, Furkan H.; De Wolf, Stefaan; Yerci, Selçuk; Troughton, Joel; Baran, Derya (2022-11-28) Photovoltaics with monolithically connected tandem architectures have the potential to achieve high efficiencies owing to enhanced spectral absorption and reduced thermal losses. To achieve this, photoactive layers with complementary absorption and interconnecting layers, which are robust, transparent, and energetically suitable, are essential. Here, we investigate a strategy to create an efficient, highly transparent, ohmic, and chemically robust interconnecting layer based on atomic layer-deposited tin ox...
EFFECTS OF THERMOPYHSICAL PROPERTIES AND ENTRANCE REGION ON THE DIMENSIONAL OPTIMIZATION OF MICROCHANNEL HEAT SINKS Turkakar, Goker; Okutucu Özyurt, Hanife Tuba (2011-06-03) Dimensional optimization of silicon microchannel heat sinks is performed by minimizing the total thermal resistance. Intel Core i7-900 Desktop Processor of chip core dimensions of 1.891 cm x 1.44 cm is considered as a reference processor which is reported to dissipate 130 W of heat. The properties are evaluated at the area weighted average of the fluid inlet and iteratively calculated outlet temperatures. The effects of the thermal and hydrodynamic entrance regions on heat transfer and flow are also investi...
Dimensional optimization of microchannel heat sinks with multiple heat sources Turkakar, Goker; Okutucu Özyurt, Hanife Tuba (2012-12-01) Dimensional optimization of silicon microchannel heat sinks is performed by minimizing the total thermal resistance. Intel Core i7-900 Desktop Processor of chip core dimensions of 1.891 cm x 1.44 cm is considered as a reference processor which is reported to dissipate 130 W of heat. The properties are evaluated at the area weighted average of the fluid inlet and iteratively calculated outlet temperatures. The effects of the thermal and hydrodynamic entrance regions on heat transfer and flow are also investi...

Citation Formats

A. A. Günay, S. Harish, M. Fuchi, I. Kinefuchi, Y. Lee, and J. Shiomi, “Metal–organic framework coated porous structures for enhanced thermoelectric performance,” Energy Conversion and Management, vol. 255, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85124005445&origin=inward.