E. V. Bazilevich, M. V. Muradova, A. V. Kulik, S. N. Mokrin, S. S. Minaev
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Abstract
The aim of this study was to estimate the radiation efficiency inside a cylindrical porous reactor consisting of two coaxially mounted quartz tubes. The porous medium was made of two different fractions of zirconium dioxide balls, which helped to stabilize the combustion wave for a wide range of combustible mixture flow rates, from 12.4 to 74.4 L/min. All experiments were performed using a premixed lean methane–air mixture. To estimate the radiative heat flux inside the porous reactor, the flow calorimetry method was utilized. The study found that the heat flux absorbed by water does not vary with the volume flow rate of the water. Furthermore, the experiment revealed that lower combustible mixture flow rates result in maximum radiative efficiency. This configuration of the porous reactor has the potential to be used as a heater for non-contact heating of materials through heat flow.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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