elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

A New Type Of Hybrid Aggregation Model And The Application Towards Silica (Aero)gels

Borzecka, Nina and Pandit, Prakul and Rege, Ameya Govind (2023) A New Type Of Hybrid Aggregation Model And The Application Towards Silica (Aero)gels. The 1st International Seminar on Modelling, Simulation and Machine Learning for the Rapid Development of Porous Materials, 2023-05-10 - 2023-05-12, Cologne, Germany.

Full text not available from this repository.

Abstract

A new type of hybrid aggregation model and the application towards silica (aero)gels Nina Borzęcka, Prakul Pandit, Ameya Rege Department of Aerogels and Aerogel Composites, Institute of Materials Research, German Aerospace Centre, Cologne, Germany Silica aerogel modelling requires acknowledging the complexity of their structure. The condensation of the classic particle aggregates type of aerogel is a complex phenomenon which result in their final nanostructured porous morphology. In order to understand the process, a comprehensive and multiscale approach is needed. A widely utilised, although significantly simplified approach for modelling sol-gel transition is diffusion or reaction limited cluster aggregation method (DLCA/RLCA). This type of numerical system can mimic random motion of primary/secondary particles and follow simultaneously the structure evolution and the kinetics of its formation. The model parameters such as concentration of secondary particles and sticking probability affect the process rate and the structural and fractal properties. As a consequence, we introduce a modelling approach, that takes into the consideration the numerical particle reactivity based on the experimental reaction rates. The comparison of numerical and experimental results provides data for model validation and discussion whether these improvements bring us closer to reflecting the real materials – silica aerogels. Which brings us to the question: Does such a modelling approach show potential for reverse engineering and product design?

Item URL in elib:https://elib.dlr.de/197851/
Document Type:Conference or Workshop Item (Speech)
Title:A New Type Of Hybrid Aggregation Model And The Application Towards Silica (Aero)gels
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Borzecka, NinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pandit, PrakulUNSPECIFIEDhttps://orcid.org/0000-0002-1343-3046144802975
Rege, Ameya GovindUNSPECIFIEDhttps://orcid.org/0000-0001-9564-5482UNSPECIFIED
Date:2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:silica aerogel, DLCA, modelling
Event Title:The 1st International Seminar on Modelling, Simulation and Machine Learning for the Rapid Development of Porous Materials
Event Location:Cologne, Germany
Event Type:international Conference
Event Start Date:10 May 2023
Event End Date:12 May 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - FFAE - Fahrzeugkonzepte, Fahrzeugstruktur, Antriebsstrang und Energiemanagement
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Borzecka, Nina
Deposited On:19 Oct 2023 10:15
Last Modified:24 Apr 2024 20:58

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Website and database design: Copyright © German Aerospace Center (DLR). All rights reserved.