Work

Thermal Evaluation of MEMS Radiator Using Near-field Effect in Multi-Layered Structure

Year: 2016

Type: conference-abstract

Abstract: For precise thermal control in satellites under varying internal heat dissipation and thermal boundary condition, we have proposed a MEMS radiator enhanced by near-field effect. Here, we analyse the near-field effect in multi-layered structure in order to estimate the effect of the dielectric layer on the device performance. It is shown that the ON/OFF heat flux ratio of 4.1 can be achieved with a 50 nm-thick SiO2 layer sandwiched between the electrodes. Also, it is experimentally shown that, with our prototype radiator, 2.4 times enhancement in the radiation heat flux has been obtained.

Source: The Proceedings of the Thermal Engineering Conference

DOI: 10.1299/jsmeted.2016.h225

Authors: Seungchul Oh, Hirotaka Nakajima, Ai Ueno, Kenichi Morimoto, Yuji Suzuki

Institution: The University of Tokyo

Language: English

Topic: Thermal Radiation and Cooling Technologies

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W2625826845

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