Micro/Nanomaterials for Phase Change Heat Transfer and Thermal Energy Storage

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 1126

Special Issue Editor


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Guest Editor
Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, North China Electric Power University, Beijing 102206, China
Interests: phase change heat transfer on micro/nanostructured surface; supercritical fluids and heat transfer; thermal energy storage with molten-salt

Special Issue Information

Dear Colleagues,

Solid, liquid and gas are the three phases of matter. Different phases have significantly different distance between molecules. The transition from one phase to another is referred to as phase change, which is accompanied by energy supplement or release that changes the distance between molecules. Thus, phase change is an effective way for heat transfer and thermal energy storage. It is widely applied in power generation, desalination, electronics cooling and thermal management. To improve the performance of phase change heat transfer and thermal energy storage, research on different micro/nanomaterials have garnered widespread attention in recent times.

This Special Issue titled ‘Micro/Nanomaterials for Phase Change Heat Transfer and Thermal Energy Storage’ aims to cover investigations of heat transfer and heat storage with functional micro/nanomaterials. We cordially invite researchers to submit their original research papers, communications, and critical reviews related to the following topics:

  • Boiling, condensation and freezing on micro/nanostructured surfaces;
  • Evaporation and boiling of nanofluids;
  • MOF material and micro/nanoparticles for thermal energy storage;
  • Heat pipe with porous materials;
  • Electronics cooling with microchannel; 
  • solar-driven desalination with micro/ nanomaterial.

Dr. Jian Xie
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • condensation
  • boiling
  • evaporation
  • heat transfer
  • heat storage
  • nanofluid
  • micro/nanostructured surface
  • nanoparticle
  • microchannel
  • porous material

Published Papers (1 paper)

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Research

20 pages, 6868 KiB  
Article
Aluminum Micropillar Surfaces with Hierarchical Micro- and Nanoscale Features for Enhancement of Boiling Heat Transfer Coefficient and Critical Heat Flux
by Armin Hadžić, Matic Može, Matevž Zupančič and Iztok Golobič
Nanomaterials 2024, 14(8), 667; https://doi.org/10.3390/nano14080667 - 11 Apr 2024
Viewed by 893
Abstract
The rapid progress of electronic devices has necessitated efficient heat dissipation within boiling cooling systems, underscoring the need for improvements in boiling heat transfer coefficient (HTC) and critical heat flux (CHF). While different approaches for micropillar fabrication on copper or silicon substrates have [...] Read more.
The rapid progress of electronic devices has necessitated efficient heat dissipation within boiling cooling systems, underscoring the need for improvements in boiling heat transfer coefficient (HTC) and critical heat flux (CHF). While different approaches for micropillar fabrication on copper or silicon substrates have been developed and have shown significant boiling performance improvements, such enhancement approaches on aluminum surfaces are not broadly investigated, despite their industrial applicability. This study introduces a scalable approach to engineering hierarchical micro-nano structures on aluminum surfaces, aiming to simultaneously increase HTC and CHF. One set of samples was produced using a combination of nanosecond laser texturing and chemical etching in hydrochloric acid, while another set underwent an additional laser texturing step. Three distinct micropillar patterns were tested under saturated pool boiling conditions using water at atmospheric pressure. Our findings reveal that microcavities created atop pillars successfully facilitate nucleation and micropillars representing nucleation site areas on a microscale, leading to an enhanced HTC up to 242 kW m−2 K−1. At the same time, the combination of the surrounding hydrophilic porous area enables increased wicking and pillar patterning, defining the vapor–liquid pathways on a macroscale, which leads to an increase in CHF of up to 2609 kW m−2. Full article
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