S
Stoyan Nedeltchev
Researcher at Helmholtz-Zentrum Dresden-Rossendorf
Publications - 28
Citations - 427
Stoyan Nedeltchev is an academic researcher from Helmholtz-Zentrum Dresden-Rossendorf. The author has contributed to research in topics: Bubble & Mass transfer. The author has an hindex of 12, co-authored 23 publications receiving 391 citations. Previous affiliations of Stoyan Nedeltchev include Missouri University of Science and Technology & Braunschweig University of Technology.
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A new method for identification of the main transition velocities in multiphase reactors based on information entropy theory
TL;DR: In this article, a new method for flow regime identification in multiphase reactors (bubble columns, fluidized bed and spouted beds) was developed based on the information entropy (IE) theory and division of the signal (photon counts, differential or gauge pressure fluctuations) into different regions.
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New methods for flow regime identification in bubble columns and fluidized beds
TL;DR: In this article, a new method for flow regime identification was developed and applied to photon count time series measured in a bubble column (0.162m in ID) and fluidized bed ( 0.438 m in ID), where the hidden information in the time series was extracted by means of two new parameters: entropy (bit/s) and information entropy(bit).
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Correction of the penetration theory based on mass-transfer data from bubble columns operated in the homogeneous regime under high pressure ☆
TL;DR: In this paper, a new correction term was developed which allowed the classical penetration theory to be applied successfully to kL a data obtained from oblate ellipsoidal bubbles formed in bubble columns operated in the homogeneous regime at various pressures ( 0.1 − 4.0 MPa ).
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Flow Regime Identification in a Bubble Column Based on Both Statistical and Chaotic Parameters Applied to Computed Tomography Data
TL;DR: In this article, the Kolmogorov entropy (KE) algorithm was applied successfully to single source γ-ray Computed Tomography (CT) data measured in a 0.162 m ID bubble column equipped with a perforated plate distributor.
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Flow Regime Identification in a Bubble Column via Nuclear Gauge Densitometry and Chaos Analysis
TL;DR: In this paper, a flow regime identification was performed on the basis of the Kolmogorov entropy (KE) algorithm applied to nuclear gauge densitometry data and three transition velocities were identified that delineated the boundaries of the three main hydrodynamic regimes.