Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Intelligent modeling of rheological and thermophysical properties of nanoencapsulated PCM slurry
Nanoencapsulated phase change material slurries (NPCMS) combine properties of carried fluid and phase change material (PCM). Usage of NPCMS instead of water as a working fluid has a lot of advantages in many industrial fields. The costly and time‐consuming determination of thermophysical properties of NPCMS through the experimental analysis led the current investigations to use soft computing methods like correlating, artificial neural network (ANN), and ant colony optimization (ACOR). In this study, the application of ANN, empirical correlations, and ACOR for modeling the thermophysical properties of NPCM slurry, which has been synthesized through a facile and eco‐friendly procedure, has been investigated. PCM nanocapsules have been synthesized using a miniemulsion polymerization method. Nancapsules consist of AP‐25 as core and a Styrene shell, which is modified with graphene oxide nanosheets as an extra protective screen. The morphology and thermal properties of nanocapsules were characterized and analyzed, respectively. Results revealed that minimum average particle‐size values result in a melting latent heat of 146.8 J/g. In case of NPCM slurry, the results showed that the thermal conductivity of MPCS decreased with particle concentration for the temperatures below the melting point. The NPCMS can be considered a Newtonian fluid within the test region (shear rate > 200/seconds and mass fraction < 0.25). The ANN‐ACOR model consists of two neurons in the input layer, six neurons in the hidden layer, and two neurons in the output layer. The input layer consists of two nodes (PCM concentration and temperature) that correspond to parameters found essential and sufficient for thermophysical properties prediction. Upon comparison, the results show that the presented model, which is a combination of the ACOR algorithm and an artificial neural network, is compatible with experimental work.
Phase change material (PCM) nanocapsules were synthesized using miniemulsion methods.
Thermophysical properties of PCM nanofluid were measured.
ANN‐ACOR method was employed to predict nanofluid thermophysical properties.
The proposed models showed great accuracy.
Intelligent modeling of rheological and thermophysical properties of nanoencapsulated PCM slurry
Nanoencapsulated phase change material slurries (NPCMS) combine properties of carried fluid and phase change material (PCM). Usage of NPCMS instead of water as a working fluid has a lot of advantages in many industrial fields. The costly and time‐consuming determination of thermophysical properties of NPCMS through the experimental analysis led the current investigations to use soft computing methods like correlating, artificial neural network (ANN), and ant colony optimization (ACOR). In this study, the application of ANN, empirical correlations, and ACOR for modeling the thermophysical properties of NPCM slurry, which has been synthesized through a facile and eco‐friendly procedure, has been investigated. PCM nanocapsules have been synthesized using a miniemulsion polymerization method. Nancapsules consist of AP‐25 as core and a Styrene shell, which is modified with graphene oxide nanosheets as an extra protective screen. The morphology and thermal properties of nanocapsules were characterized and analyzed, respectively. Results revealed that minimum average particle‐size values result in a melting latent heat of 146.8 J/g. In case of NPCM slurry, the results showed that the thermal conductivity of MPCS decreased with particle concentration for the temperatures below the melting point. The NPCMS can be considered a Newtonian fluid within the test region (shear rate > 200/seconds and mass fraction < 0.25). The ANN‐ACOR model consists of two neurons in the input layer, six neurons in the hidden layer, and two neurons in the output layer. The input layer consists of two nodes (PCM concentration and temperature) that correspond to parameters found essential and sufficient for thermophysical properties prediction. Upon comparison, the results show that the presented model, which is a combination of the ACOR algorithm and an artificial neural network, is compatible with experimental work.
Phase change material (PCM) nanocapsules were synthesized using miniemulsion methods.
Thermophysical properties of PCM nanofluid were measured.
ANN‐ACOR method was employed to predict nanofluid thermophysical properties.
The proposed models showed great accuracy.
Intelligent modeling of rheological and thermophysical properties of nanoencapsulated PCM slurry
Hashemi Jirandeh, Mohhammad Reza (Autor:in) / Mohammadiun, Mohammad (Autor:in) / Mohammadiun, Hamid (Autor:in) / Dubaie, Mohammad Hosein (Autor:in) / Sadi, Meisam (Autor:in)
Heat Transfer ; 49 ; 2080-2102
01.06.2020
23 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A rheological study of cement slurry
| Tema Archiv | 1988
Study on Rheological Properties of Oil-Based Water Coal Slurry
| British Library Online Contents | 2001
Effects of Tailings Gradation on Rheological Properties of Filling Slurry
| DOAJ | 2019