[EN] Low laminar burning velocity’s and slow reactions propagation are among a key problem in combustion processes with low calorific gas mixtures. The mixtures have a laminar burning velocity of 10 cm/s to 15 cm/s or even ...
BICHOT, Aurélie; Radoiu, M.; Bernet, Nicolas; Mechin, Valérie; Delgenès, J.P.; García Bernet, D.(Editorial Universitat Politècnica de València, 2019-10-15)
[EN] The objectives fixed by world’s governments concerning energy transition have aroused interest on lignocellulosic biomass utilization for bioenergy and green chemistry applications. However, due to their resistant ...
[EN] Microwave-material interactions and electromagnetic propagation phenomena are important to optimize the microwave heating process of food samples. In this study, a 3D numerical modelling of a TE10 rectangular waveguide ...
[EN] The pursuit of sustainable relationship between the production and consumption of energy has accelerated the research into new fuels alternatives, and mainly focused on new technologies for biomass based fuels. Microwave ...
[EN] We report a microwave heating system with a carbon heating tube (CHT) made by a 4-mm diameter quartz tube filled carbon particles and Ar gas at 1400 Pa. 2.45-GHz microwave at 200 W was introduced to a 300-dimameter ...
[EN] Ryszard Parosa, Andrzej Brożyński, Piotr Grześkowiak, Krzysztof Kowalczyk, Marek Natoński, Piotr Ziętek and Janusz Żytkiewicz PROMIS-TECH Poland Keywords: microwave treatment, low pressure heating, microwave drying ...
Leshchinskaya, Alexandra(Editorial Universitat Politècnica de València, 2019-10-15)
[EN] Low permeability of many wood species causes problems in the chemical pulp industry.
These include: very long cooking times, high chemical consumption, large material losses,
high energy consumption, and environment ...
[EN] Zinc sulphide (ZnS) and zinc selenide (ZnSe) and manganese-doped and un-doped with different morphologies from 1D do 3D microflowers were successfully fabricated in only a few minutes by solvothermal reactions under ...
[EN] Fluorescent molecular probes become interesting analytical tools in determination and labeling of chemical compounds and physical properties such as viscosity and polarity. Currently known fluorescent molecular probes ...
[EN] In the field of ceramic-based materials processing the last three decades has been marked by significant academic and industry interest in Additive Manufacturing (AM) technology due to its capability to produce ceramic ...
[EN] The aim of this study is to investigate and to optimize an existing microwave-powered
remote plasma source (RPS) with respect to the etching rate and gas temperature and to
simplify the setup to save production ...
[EN] In this study, a rock model which consists of a conceptual block (host rock and ore sample) is numerically modeled by using the finite element method. The rock model is subjected to several single-mode microwave ...
[EN] Supersonic gas flows activated by microwave discharge are commonly used to obtain thrust for spacecraft. When using a mixture of hydrocarbons and hydrogen as a working gas, the proposed method generates high-speed ...
[EN] The permittivity of a material can be obtained from resonant measurements in an accurate way [1] at a single frequency (where the resonance occurs). In figure (1) results for the Debye Model at 298K temperature can ...
[EN] Efficient processing of vegetal biomass is a great challenge to current research studies. This work is focused on improving the yield of enzymatic hydrolysis of wood residues by removal of lignin using a alkaline wash ...
[EN] Over the last ten years the concept of self healing in asphalt mixtures for roads pavements has been reaching great importance due to the fact that this capability allows a material to recuperate original properties ...
[EN] The loss factor of a material is a key characteristic behind heat generation during EM heating. For typical ceramics, the loss factor increases exponentially with temperature potentially initiating thermal runaway ...
Yanagida, Shozo; Matsumura, Takeko(Editorial Universitat Politècnica de València, 2019-10-15)
[EN] Under irradiance of 1kW-MW, nickel oxide (Ni(II)O, 25 gr)) can heat up to 1,300°C in 6 min, while ferric oxide (Fe(III)2O3, 25gr) up to 88°C in 30 min. Since Ni(II) and Fe(III) have unpaired electron (spin) of respective ...
Hagiwara, Kenta; Horikoshi, Satoshi(Editorial Universitat Politècnica de València, 2019-10-15)
[EN] In this research, we ameliorated the problems of carbon quantum dots synthesis and
luminescence (quantum yields) by the novel synthesis protocol using microwave chemistry.
Specifically, we synthesized high quantum ...
Robinson, Megan; Popovic, Zoya(Editorial Universitat Politècnica de València, 2019-10-15)
[EN] This paper presents an efficiency study for scalable microwave waste management. When waste with carbon content is subjected to volume power densities on the order of 0.25W/cm3 at GHz frequencies, it converts to solid ...