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Advanced Energy Storage for Green Buildings
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Advanced Energy Storage for Green Buildings

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

Deadline for manuscript submissions: closed (10 October 2022) | Viewed by 7827

Special Issue Editors

Dr. Xi Chen

E-Mail Website
Guest Editor
Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, The Central Ave, Hong Kong
Interests: green building; thermal comfort; natural ventilation; heat pump; renewable energy
Special Issues, Collections and Topics in MDPI journals
Dr. Qinghua Yu

E-Mail Website
Guest Editor
School of Automotive Engineering, Wuhan University of Technology, 430070 Wuhan, China
Interests: cryogenic energy storage; thermal energy storage; advanced cooling
Dr. Xiaohui She

E-Mail Website
Guest Editor
School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Interests: cryogenic energy storage; thermal energy storage; advanced cooling

Special Issue Information

Dear Colleagues,

    Green building designs aim to create a comfortable, healthy and high-quality indoor environment, while minimizing the energy and environmental impact to achieve the sustainable development of urban communities. An important part of the green building design is energy efficiency, given that building sectors account for a large portion of the global total energy consumption. Recently, renewable applications including solar thermal and photovoltaic systems have been increasingly adopted for energy conservation and carbon emission reduction in green building developments. To compensate for the fluctuating and unpredictable features of solar energy, various energy storage technologies are introduced to align the renewable energy supply with the building demand. An integrated design optimization of renewable energy and energy storage systems can effectively enhance the building energy performance and achieve a high flexibility of the related energy network. Meanwhile, advanced energy storage materials can also be coupled with the building envelope and service system, so that the indoor environment quality can be intelligently adjusted and controlled.

    This Special Issue therefore focuses on advances in energy storage technologies for green buildings, aiming to provide a platform for the most updated original research works in the related field, including but not limited to renewable energy applications, thermal energy storage, electrical energy storage, energy management and advanced energy storage materials within building energy efficiency or near-zero carbon building areas.

Dr. Xi Chen
Dr. Qinghua Yu
Dr. Xiaohui She
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • Building energy efficiency
  • Renewable energy applications
  • Thermal energy storage
  • Electrical energy storage
  • Energy management
  • Energy storage materials

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Published Papers (3 papers)

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Research

20 pages, 5013 KiB  
Article
Study on Convective Heat Transfer of Supercritical Nitrogen in a Vertical Tube for Liquid Air Energy Storage
by Qinghua Yu, Yuxiang Peng, Ciprian Constantin Negoescu, Yi Wang and Yongliang Li
Energies 2021, 14(22), 7773; https://doi.org/10.3390/en14227773 - 19 Nov 2021
Cited by 5 | Viewed by 2086
Abstract
The convective heat transfer behavior of supercritical nitrogen (S-N2) has played a significant role in optimizing the design of recently emerging cryogenic cold storage and recovery systems. However, studies on S-N2 heat transfer have been relatively scarce, not to mention [...] Read more.
The convective heat transfer behavior of supercritical nitrogen (S-N2) has played a significant role in optimizing the design of recently emerging cryogenic cold storage and recovery systems. However, studies on S-N2 heat transfer have been relatively scarce, not to mention that there is a legitimate urge for a robust numerical model to accurately predict and explain S-N2 heat transfer under various working conditions. In this paper, both experimental and numerical studies were conducted for convective heat transfer of S-N2 in a small vertical tube. The results demonstrated that the standard k-ε model performed better for predicting the key heat transfer characteristics of S-N2 than the SST k-ω model. The effects of heat flux and inlet pressure on the heat transfer characteristics under a large mass flux were evaluated. The variation mechanisms of local heat transfer performance were revealed by illustrating radial profiles of thermophysical properties and turbulent parameters of N2. It was found that the local performance variation along the flow direction was mainly determined by the radial profile of specific heat while the variation of the best local performance with the ratio of heat flux to mass flux was mainly determined by the radial profile of turbulent viscosity. Full article
(This article belongs to the Special Issue Advanced Energy Storage for Green Buildings)
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11 pages, 1586 KiB  
Article
Experimental Research of the Heat Storage Performance of a Magnesium Nitrate Hexahydrate-Based Phase Change Material for Building Heating
by Yang Li, Caixia Wang, Jun Zong, Jien Ma and Youtong Fang
Energies 2021, 14(21), 7108; https://doi.org/10.3390/en14217108 - 1 Nov 2021
Cited by 3 | Viewed by 2175
Abstract
Phase change heat storage material is a preferred material in solar building heating or off-peak electric-heat storage heating technology and is the research focus. A compact phase change thermal storage device has been designed and experimentally studied for improving heating system load in [...] Read more.
Phase change heat storage material is a preferred material in solar building heating or off-peak electric-heat storage heating technology and is the research focus. A compact phase change thermal storage device has been designed and experimentally studied for improving heating system load in this work. A new type, magnesium nitrate hexahydrate-based phase change material has been studied to improve the cooling degree and crystallization difficulty. The focus of this study is on the heat charging and discharging characteristics of this new phase change material. The heat storage device has two groups of coils, the inner side which carries water and the outer side which is the phase change material. A testing system was built up to value the thermal cycling performance of the heat storage device. The measurement data include phase change material temperature field, water inlet and water outlet mean temperature, heat charging and heat discharging depth, and flow rates over the operating period. The results show the phase change material has a quick response with the operating temperature range of 20–99 °C. Its latent heat is 151.3 J/g at 91.8 °C. The heat storage density of this phase change material is about 420 MJ/m3. The thermal performance degradation is about 1.8% after 800 operation cycles. The phase change thermal storage device shows flexibility and a great potential to improve the capacity and economy of heating systems. Full article
(This article belongs to the Special Issue Advanced Energy Storage for Green Buildings)
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17 pages, 5194 KiB  
Article
Numerical Analysis of Melting Process in a Rectangular Enclosure with Different Fin Locations
by Bin Huang, Lin-Li Tian, Qing-Hua Yu, Xun Liu and Zu-Guo Shen
Energies 2021, 14(14), 4091; https://doi.org/10.3390/en14144091 - 6 Jul 2021
Cited by 6 | Viewed by 2307
Abstract
Latent thermal energy storage is regarded as an effective strategy to utilize solar energy and recover automotive waste heat. Based upon an enthalpy-porosity method, the influence characteristics and mechanism of fin location on phase change material melting behavior in vertical rectangular enclosures were [...] Read more.
Latent thermal energy storage is regarded as an effective strategy to utilize solar energy and recover automotive waste heat. Based upon an enthalpy-porosity method, the influence characteristics and mechanism of fin location on phase change material melting behavior in vertical rectangular enclosures were explored numerically. The results show that as fin location increases, the melting time decreases before attaining the minimum at the fin location of 0.20 after which it increases and finally surpasses the no fin case, because (1) the influence range of fins for conduction is limited by the bottom surface when putting fins next to this surface, (2) the liquid flow resistance increases with moving fins up, and (3) mounting fins near the top surface accelerates melting at the upper part, facilitating thermal stratification formation and weakening natural convection. Nu is higher than the no fin case, i.e., Nu enhancement factor is a positive value, in the melting process for a lower fin location, while for other fin locations, a transition to a negative value takes place. The higher the fin location is, the earlier the transition that arises. Finally, a strategy of increasing the maximum liquid flow velocity is proposed to reinforce melting for cases with considerable natural convection. Full article
(This article belongs to the Special Issue Advanced Energy Storage for Green Buildings)
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