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Heat Transfer and Multiphase Flow in Renewable Energy and Energy Storage System

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "D: Energy Storage and Application".

Deadline for manuscript submissions: closed (28 February 2023) | Viewed by 6808

Special Issue Editors

School of Energy and Environmental Engineering, Hebei University of Technology, Tianjin 300401, China
Interests: heat transfer enhancement; solar energy utilization; solar receiver; thermal energy storage; supercritical CO2 cycles
School of Physics and Astronomy, Sun Yat-sen University, Guangzhou 510000, China
Interests: boiling heat transfer; multiphase flow; solar energy utilization; battery thermal management; cooling devices; heat pipe
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Guest Editor
School of Electrical and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
Interests: thermal energy storage; solid–liquid phase change; numerical heat transfer, heat transfer enhancement; battery thermal management
Faculty of Environment, Science and Economy, University of Exeter, Exeter EX4 4QF, UK
Interests: built environment; heating and cooling technologies; renewable energy for buildings; energy storage; phase change materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We cordially invite you to contribute to this Special Issue of Energies entitled Heat Transfer and Multiphase Flow in Renewable Energy and Energy Storage Systems.

With worsening energy consumption and environmental pollution, the effective utilization and thermal energy storage for renewable energy have received great attention in solar energy, hydrogen energy, building energy-saving, cooling electronic devices, battery thermal management of electrical vehicles, etc. To achieve the efficient utilization and thermal energy storage for renewable energy, the heat and mass transfer mechanisms and the thermal properties of materials and systems are important factors to consider.

This Special Issue will cover recent research and trends in utilization and thermal energy storage for renewable energy, including materials, devices and systems. In particular, this Special Issue will cover the heat and mass transfer and multiphase flow in various devices and systems. The preparation, characterization and thermal properties of different materials are of interest. We welcome both experimental and computational studies, such as molecular dynamics, dissipative particle dynamics, the lattice Boltzmann method, and so on.

Topics of interest for this Special Issue include, but are not limited to:

  • Thermal energy storage techniques, including sensible heat, latent heat, and thermochemical heat or a combination of these.
  • Oval phase-change materials for thermal storage and management, including organic, inorganic, and eutectic or micro/nanoencapsulated phase-change materials.
  • Advanced microchannel heat sink, heat pipe, and vapor chamber.
  • Boiling and condensation on functional surfaces and micro/nano-structures.
  • Cooling electronic devices and battery thermal management systems of electrical vehicles, including air cooling, liquid cooling, and phase-change material cooling or heating.
  • Latent heat function of nanofluids and nanocapsules.
  • Micro/nano heat transfer and multiphase flow of thermal energy storage and thermal management systems, including both experimental and computational studies.
  • Advanced energy storage management systems.
  • Advanced solar receivers and power cycles.

Prof. Dr. Kun Wang
Prof. Dr. Sihui Hong
Prof. Dr. Yutao Huo
Dr. Chuang Wen
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 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

  • solar energy
  • hydrogen energy
  • battery
  • thermal energy storage
  • heat and mass transfer
  • multiphase flow
  • boiling and condensation
  • phase change

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Published Papers (3 papers)

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Research

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17 pages, 7434 KiB  
Article
Effect of a Vibrating Blade in a Channel on the Heat Transfer Performance
by Xinrui Yuan, Chenyang Lan, Jinqi Hu, Yuanhong Fan and Chunhua Min
Energies 2023, 16(7), 3076; https://doi.org/10.3390/en16073076 - 28 Mar 2023
Cited by 2 | Viewed by 1315
Abstract
A vibrating blade was arranged in a channel to enhance heat transfer. The effects of the frequency and amplitude of the blade on the heat transfer characteristics were numerically researched. The phase space reconstruction and maximum Lyapunov index were used to analyze the [...] Read more.
A vibrating blade was arranged in a channel to enhance heat transfer. The effects of the frequency and amplitude of the blade on the heat transfer characteristics were numerically researched. The phase space reconstruction and maximum Lyapunov index were used to analyze the transition path and degree of chaos. The results show that the vibrating blade can generate chaos; thus, the heat transfer is enhanced. The convective heat transfer performance is positively correlated with the degree of chaos. In addition, when the frequency is 10 Hz, and the inlet velocity is 0.5 m s−1, the heat transfer can be improved by 16%. When the maximum amplitude of the blade is 8 mm and the inlet velocity is 0.8 m s−1, the heat transfer can be improved by 15%. Full article
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16 pages, 4351 KiB  
Article
Study on Intermittent Microwave Convective Drying Characteristics and Flow Field of Porous Media Food
by Yu Man, Junjie Tong, Tingyu Wang, Shuxiang Wang and Hu Xu
Energies 2023, 16(1), 441; https://doi.org/10.3390/en16010441 - 30 Dec 2022
Cited by 4 | Viewed by 1753
Abstract
Numerical simulations were carried out for moist, porous media, intermittent microwave convective drying (IMCD) using a multiphase flow model in porous media subdomains coupled with a forced-convection heat-transfer model in an external hot air subdomain. The models were solved by using COMSOL Multiphysics [...] Read more.
Numerical simulations were carried out for moist, porous media, intermittent microwave convective drying (IMCD) using a multiphase flow model in porous media subdomains coupled with a forced-convection heat-transfer model in an external hot air subdomain. The models were solved by using COMSOL Multiphysics was applied at the pulse ratio (PR) of 3. Based on drying characteristics of porous media and the distribution of the evaporation interface, IMCD was compared with convection drying (CD). Drying uniformity K, velocity difference, temperature difference, and humidity difference were introduced to evaluate the performance of three models with different inlets and outlet wall curvature. The numerical results show that as the moisture content of slices was reduced to 3 kg/kg, the drying rate in IMCD was 0.0166–0.02 m/s higher than that in CD, and the total drying time of the former was 81.35% shorter than that of the latter. In the late drying stage of IMCD, the core of the sample still had a high vapor concentration and temperature, which led to the evaporation interface remaining on the surface. The vapor evaporated from the slices can diffuse rapidly to the outside, which is why IMCD is superior to traditional convection drying. Through the comprehensive analysis of the models with different inlet and outlet wall curvatures, the drying uniformity K of the type III was the highest, reaching 89.28%. Optimizing flow-field distribution can improve uniform of airflow distribution. Full article
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Review

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28 pages, 6759 KiB  
Review
A Review of Flow and Heat Transfer Characteristics of Supercritical Carbon Dioxide under Cooling Conditions in Energy and Power Systems
by Dingchen Wu, Mingshan Wei, Ran Tian, Siyu Zheng and Jundi He
Energies 2022, 15(23), 8785; https://doi.org/10.3390/en15238785 - 22 Nov 2022
Cited by 12 | Viewed by 3005
Abstract
Supercritical carbon dioxide (SCO2) is widely used in many fields of energy and power engineering, such as nuclear reactors, solar thermal power generation systems, and refrigeration systems. In practical applications, SCO2 undergoes a cooling process significantly when it is cooled [...] Read more.
Supercritical carbon dioxide (SCO2) is widely used in many fields of energy and power engineering, such as nuclear reactors, solar thermal power generation systems, and refrigeration systems. In practical applications, SCO2 undergoes a cooling process significantly when it is cooled near the pseudo–critical point. Because of the drastic variations in thermo–physical properties, the heat transfer characteristics fluctuate, affecting the heat exchange and overall cycle performance. This paper summarizes extensive experiments and numerical simulations on the cooling process of SCO2 in various application scenarios. The effects of various working conditions, such as mass flow, working pressure, pipe diameter, flow direction, and channel shapes, are reviewed. The applicability and computational results using different numerical methods under different working conditions are also summarized. Furthermore, empirical correlations obtained in experiments at different conditions are included. The present review can provide a helpful guideline for the design of effective cooling systems or condensers so that the accuracy of the design and efficiency of the system can be improved. Full article
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