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Building Energy Efficiency and Thermal Energy Storage in Building Design...
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Building Energy Efficiency and Thermal Energy Storage in Building Design and Application

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Green Building".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 5241

Special Issue Editors

Dr. Bo Xu

E-Mail Website
Guest Editor
Key Lab of Energy Thermal Conversion and Control, Ministry of Education; Southeast University, Nanjing, China
Interests: thermal energy storage; solar energy utiliation; heat transfer enhancement; heat exchanger
Dr. Cancan Zhang

E-Mail Website
Guest Editor
Faculty of Environment and Life, Beijing University of Technology, Beijing 100044, China
Interests: thermal energy storage; heat transfer enhancement; solar energy utilization
Special Issues, Collections and Topics in MDPI journals
Dr. Meibo Xing

E-Mail Website
Guest Editor
Beijing Engineering Research Center of Sustainable Energy and Buildings, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
Interests: solar building integration; thermal energy storage; new energy materialsc

Special Issue Information

Dear Colleagues,

Energy consumed by heating, ventilation and air conditioning systems (HVAC) in buildings represents an important part of the global energy consumed. Advanced building energy systems, efficient building energy saving technology, forward-looking building energy system planning and programs are all helpful in reducing building energy consumption. In addition, thermal energy storage (TES) is one of the most promising technologies to enhance the efficiency of renewable energy sources. TES overcomes any mismatch between energy generation and use in terms of time, temperature, power or site. Solar applications, including those in buildings, require thermal energy to be stored for periods ranging from very short durations (in minutes or hours) to seasonal storage. The advantages of using TES in an energy system are not only the increase in the overall efficiency and reliability, but it can also lead to better economic feasibility, reducing investment and running costs, less pollution of the environment and less CO2 emissions.

This Special Issue aims to encourage researchers to publish in detail their work related to efficient energy utilization, and the design and application of thermal energy storage technology in buildings. Original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

  • Modeling, experiments or analyses of building energy.
  • Advanced building load forecasting methods.
  • Energy planning and energy management of buildings or districts.
  • Simulation of or experiments on advanced building energy systems and equipment.
  • Integrated energy systems for buildings.
  • New heat storage materials and phase change energy storage materials.
  • Renewable energy utilization in the building area.
  • Designs of new energy systems and thermal energy storage systems.

We look forward to receiving your contributions.

Dr. Bo Xu
Dr. Cancan Zhang
Dr. Meibo Xing
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. Sustainability 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 2400 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

  • energy conservation
  • building energy analysis
  • building energy modeling and forecasting
  • energy planning and energy management
  • building energy system and equipment
  • heat storage materials
  • phase change energy storage materials
  • photovoltaic technology
  • renewable energy utilization in the building
  • design of new energy system

Published Papers (4 papers)

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Research

20 pages, 3495 KiB  
Article
Experimental Study of a Pump-Driven Microchannel-Separated Heat Pipe System
by Shengpeng Chen, Peng Xu, Juan Shi, Lisha Sheng, Chaoling Han and Zhenqian Chen
Sustainability 2023, 15(24), 16839; https://doi.org/10.3390/su152416839 - 14 Dec 2023
Cited by 1 | Viewed by 830
Abstract
The current situation of high energy consumption in data centers places high demands on the energy consumption and heat-dissipation efficiency of cooling technology. This article studies the steady-state flow and heat-transfer characteristics of a pump-driven separated heat pipe system from an experimental perspective. [...] Read more.
The current situation of high energy consumption in data centers places high demands on the energy consumption and heat-dissipation efficiency of cooling technology. This article studies the steady-state flow and heat-transfer characteristics of a pump-driven separated heat pipe system from an experimental perspective. After designing and selecting the pump-driven microchannel-separated heat pipe system, an experimental platform is built to test the pump-driven microchannel-separated heat pipe system under variable operating conditions. It is found that the optimal filling rate range of the system is 75% to 95%, and the optimal condensing air volume is 4250 m3/h. The relationship between the circulating mass flow rate and the heat-transfer capacity of the heat pipe system is comprehensively influenced by the resistance of each section and the heat-transfer coefficient at the heat exchanger. When the indoor and outdoor temperature difference increases from 10 °C to 30 °C, the heat transfer increases by 261.5%, and the working medium of R410a has a better heat-transfer performance than R134A at outdoor temperatures ranging from 0 to 15 °C. The results contribute to the application of pump-assisted microchannel heat pipe systems in data center machines, which provide guidance for the application of cabinet-level thermal management. Full article
(This article belongs to the Special Issue Building Energy Efficiency and Thermal Energy Storage in Building Design and Application)
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21 pages, 6870 KiB  
Article
Thermal Performance Analysis and Multi-Factor Optimization of Middle–Deep Coaxial Borehole Heat Exchanger System for Low-Carbon Building Heating
by Mingshan Liang, Jianhua Tu, Lingwen Zeng, Zhaoqing Zhang, Nan Cheng and Yongqiang Luo
Sustainability 2023, 15(21), 15215; https://doi.org/10.3390/su152115215 - 24 Oct 2023
Cited by 1 | Viewed by 739
Abstract
Ground-source heat pumps with deep borehole heat exchangers can fully utilize deep geothermal energy, effectively reducing the consumption of non-renewable energy for building air conditioning and achieving energy conservation and emissions reduction goals. However, the middle–deep coaxial borehole heat exchange (MDBHE) development is [...] Read more.
Ground-source heat pumps with deep borehole heat exchangers can fully utilize deep geothermal energy, effectively reducing the consumption of non-renewable energy for building air conditioning and achieving energy conservation and emissions reduction goals. However, the middle–deep coaxial borehole heat exchange (MDBHE) development is insufficient, and there is currently a lack of definitive guidelines for system optimal design and operation. This paper firstly establishes an effective and efficient system model and examines nine important parameters related to the design and operation of the MDBHE using a single-factor analysis. Thereafter, we compare and analyze the impact of different parameters through an orthogonal experimentation method. The findings reveal that the three most significant factors are borehole depth, inlet temperature, and mass flow rate, in descending order of importance. In addition, in terms of operation mode, this paper makes a comparative analysis of the operation of the MDBHE in variable flow mode and constant flow mode. The results showed that the average energy consumption of the pump in the variable flow mode decreased by 9.6%, and the surrounding ground temperature recovered at a faster rate. Full article
(This article belongs to the Special Issue Building Energy Efficiency and Thermal Energy Storage in Building Design and Application)
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14 pages, 4355 KiB  
Article
Experimental Research on a Lightweight Miniature Wankel Compressor for a Vapor Compression Refrigeration System in Aerospace
by Ruiping Zhi, Rui Ma, Delou Zhang and Yuting Wu
Sustainability 2023, 15(11), 8826; https://doi.org/10.3390/su15118826 - 30 May 2023
Cited by 1 | Viewed by 1096
Abstract
Vapor compression refrigeration is considered one promising technology for dissipating much higher heat fluxes from electronic devices at lower temperatures. The compressor, one key component, has a great effect on the overall size and performance of the system. One lightweight, miniature, hermetic Wankel [...] Read more.
Vapor compression refrigeration is considered one promising technology for dissipating much higher heat fluxes from electronic devices at lower temperatures. The compressor, one key component, has a great effect on the overall size and performance of the system. One lightweight, miniature, hermetic Wankel compressor was developed to solve limited space cooling problems. The assembled Wankel compressor had a diameter of 65 mm, a length of 85 mm and a weight of 340.2 g, without a motor and housing. An experimental system for miniature refrigeration was set up to explore the optimal refrigerant charge and the performance of the compressor under changing rotational speeds and inlet temperatures of cooling water. The experimental results showed that the optimal refrigerant charge was 220 g and the coefficient of performance was approximately 2.8. The refrigeration coefficient of the system decreased with increases in rotational speed and inlet temperature of the cooling water at a stable cooling capacity of 100 W. The developed lightweight, miniature, hermetic Wankel compressor had reliable performance after running for 600 h, with a power consumption of 35 W and a high coefficient of performance (COP) of 2.63. Full article
(This article belongs to the Special Issue Building Energy Efficiency and Thermal Energy Storage in Building Design and Application)
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30 pages, 14624 KiB  
Article
Optimisation of Building Green Performances Using Vertical Greening Systems: A Case Study in Changzhou, China
by Yue Yang, Kai Hu, Yibiao Liu, Zhihuang Wang, Kaihong Dong, Peijuan Lv and Xing Shi
Sustainability 2023, 15(5), 4494; https://doi.org/10.3390/su15054494 - 2 Mar 2023
Cited by 5 | Viewed by 1518
Abstract
The benefits of greening systems on buildings have been frequently examined using experimental methods. However, few studies have adopted dynamic monitoring of real operational buildings to quantify the effects of greening systems on multiple building green performance indexes, such as thermal comfort, indoor [...] Read more.
The benefits of greening systems on buildings have been frequently examined using experimental methods. However, few studies have adopted dynamic monitoring of real operational buildings to quantify the effects of greening systems on multiple building green performance indexes, such as thermal comfort, indoor air quality, and energy consumption. In this study, a type of multi-in-one indoor environmental quality monitoring device was adopted for vertical greening systems in a green-certified building in Changzhou, China, with real-time data collection through an Internet of Things platform. Measurements of the indoor thermal environment and air quality were recorded from four testing points during a 90 day period from spring to summer in 2021. For comparison, the testing points were divided into group A (office zone) and group B (exhibition zone). Our results demonstrated that, in the presence of a vertical greening system, the seasonal average indoor temperatures decreased by up to 0.7 °C. The green facade outperformed the ordinary exterior wall, optimising both indoor thermal comfort and thermal inertia. Furthermore, judicious indoor greening designs significantly reduced the indoor air-pollutant concentrations, such as particulate matter, carbon dioxide, and organic pollutants. The median values for particulate matter 10 and formaldehyde concentration decreased by 20.7% and 33.3%, respectively, thus improving the indoor air quality. Lastly, the annual electricity consumption of the building with vertical greening systems was about 25% lower than that of similar buildings, underlining the potential contribution of vertical greening systems to building energy conservation. Such findings collectively demonstrate that greening systems offer quantifiable benefits for building parameters such as thermal properties, indoor air quality, and energy conservation. Full article
(This article belongs to the Special Issue Building Energy Efficiency and Thermal Energy Storage in Building Design and Application)
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