By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Heat Transfer Research. According to news originating from Harbin, People's Republic of China, by VerticalNews correspondents, research stated, "Thermophotovoltaic (TPV) devices can convert thermal radiation directly into electricity. To improve the efficiency of TPV systems, wavelength-selective emitters are designed to take thermal energy from various heat sources and then emit photons to the TPV cells."
Our news journalists obtained a quote from the research from the Harbin Institute of Technology, "A two-dimensional grating/thin-film nanostructure is proposed as an efficient emitter, whose performance is enhanced by the excitations of both surface plasmon polaritons (SPPs) and magnetic polaritons (MPs). Rigorous coupled-wave analysis is used to predict the emittance as well as the electromagnetic field and current density distributions. The normal emittance of the proposed nanostructure is shown to be wavelength-selective and polarization-insensitive. The mechanisms of SPP and MP excitations in the nanostructure are elucidated for different polarizations. The current-density loop further confirms the existence of magnetic resonances."
According to the news editors, the research concluded: "Furthermore, the effect of azimuthal and polar angles on the emittance spectra is also investigated, suggesting that the proposed structure has high emittance not only in the normal direction but also at large oblique angles."
For more information on this research see: Thermophotovoltaic emitters based on a two-dimensional grating/thin-film nanostructure. International Journal of Heat and Mass Transfer, 2013;67():637-645. International Journal of Heat and Mass Transfer can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier - www.elsevier.com; International Journal of Heat and Mass Transfer - www.elsevier.com/wps/product/cws_home/210)
The news correspondents report that additional information may be obtained from B. Zhao, Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150006, People's Republic of China. Additional authors for this research include L.P. Wang, Y. Shuai and Z.M.M. Zhang.
Keywords for this news article include: Asia, Harbin, Heat Transfer Research, People's Republic of China
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