Thermionic Energy Converter
نویسندگان
چکیده
منابع مشابه
Encapsulated Thermionic Energy Converter with Stiffened Suspension
This paper reports a prototype of a mechanically and thermally robust encapsulated microfabricated thermionic energy converter (μ-TEC). We used conformal sidewall deposition of poly-SiC to form stiff suspension legs with U-shaped cross sections, which increase the out-of-plane rigidity and prevent contact with the substrate during the heating of the suspended emitter—a qualitative improvement o...
متن کاملImproving the Efficiency of a Thermionic Energy Converter Using Dual Electric Fields and Electron Beaming
Experiments have been conducted on a dual electric grid thermionic device to investigate an alternative method of space charge mitigation in a thermionic energy convertor (TEC). Two electric grids, the attractor and deflector grids, provide opposing electric fields to overcome space charge while minimizing power losses to the attractor grid. Electron beams are formed in the electrode gap provid...
متن کاملSolid-State and Vacuum Thermionic Energy Conversion
A brief overview of the research activities at the Thermionic Energy Conversion (TEC) Center is given. The goal is to achieve direct thermal to electric energy conversion with >20% efficiency and >1W/cm power density at a hot side temperature of 300-650C. Thermionic emission in both vacuum and solid-state devices is investigated. In the case of solid-state devices, hot electron filtering using ...
متن کاملAdvanced Thermionic Energy Converters: Enabling Technology for Low Greenhouse Futures
Introduction This research involves the study of the use of diode laser excitation to alter/enhance the production of cesium (Cs) ions in the gap of a Cs-filled ignited (arc) or unignited Thermionic Energy Converter (TEC). Continuous-wave laser energy addition tuned to an excited electronic transition in Cs is used to “inject” ions/plasma at levels sufficient for space-charge neutralization of ...
متن کاملOptimal emitter-collector gap for thermionic energy converters
Related Articles Performance analysis of a vacuum thermionic refrigerator with external heat transfer J. Appl. Phys. 107, 104507 (2010) Size effect of nanometer vacuum gap thermionic power conversion device with CsI coated graphite electrodes Appl. Phys. Lett. 95, 223107 (2009) The Pierce-diode approximation to the single-emitter plasma diode Phys. Plasmas 13, 113506 (2006) Effect of contact re...
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ژورنال
عنوان ژورنال: Journal of the Society of Mechanical Engineers
سال: 1965
ISSN: 2424-2675
DOI: 10.1299/jsmemag.68.557_812