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Sustainability
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Energy Efficiency and Multi-Objective Optimization in Building
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Energy Efficiency and Multi-Objective Optimization in Building

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

Deadline for manuscript submissions: closed (30 July 2023) | Viewed by 9160

Special Issue Editors

Dr. Yi Chen

E-Mail Website1 Website2
Guest Editor
School of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen 361021, China
Interests: energy efficiency in air-conditioning systems;optimization and operation control of cooling devices
Dr. Tiezhu Sun

E-Mail Website1 Website2
Guest Editor
School of Urban Planing and Municipal Engineering, Xi’An Polytechnic University, Xi’an 710600, China
Interests: evaporative cooling technology for low-carbon buildings; cold storage technology in buildings

Special Issue Information

Dear Colleagues,

Buildings are responsible for almost one-third of global total energy consumption and nearly 15% of direct CO2 emissions resulting from various activities such as heating, ventilation, air conditioning, lighting and hot water production. Therefore, improving the energy efficiency in buildings is an important way to reduce energy consumption and realize carbon neutrality for sustainable development.

Energy efficiency in buildings focuses to implement efficient solutions to lower energy consumption without sacrificing the comfort of occupants and affecting the normal operation of indoor equipment. It highly depends on the multi-objective optimization in building design and services by comprehensively taking into account of energy consumption, resource utilization, system reliability, thermal comfort, waste production and health-related aspects. The special issue aims to present new research findings on energy-efficient technologies and optimal design in buildings for better living environment and sustainability.

In this Special Issue, original research articles and review papers on innovative solutions to accelerate energy efficiency in buildings are welcome. Research areas may include (but not limited to) the following:

  • Building envelope design and optimization
  • Heating, ventilation and air-conditioning system design and operation
  • Optimization for building lighting and thermal comfort
  • Low-carbon technology for building applications
  • Advanced HVAC system control and fault diagnosis
  • Building retrofitting for energy performance improvement
  • Thermal/cold storage in buildings
  • Distributed energy system for buildings.

We look forward to receiving your contributions.

Dr. Yi Chen
Dr. Tiezhu Sun
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 efficiency
  • sustainable technologies
  • multi-objective optimization
  • indoor environment
  • low-carbon buildings

Published Papers (4 papers)

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Research

14 pages, 17726 KiB  
Article
Study on the Influence of the Energy Intensity of Residential District Layout on Neighborhood Buildings
by Junle Yan, Hui Zhang, Yunjiang Li, Xiaoxi Huang, Shiyu Jin, Xueying Jia, Zikang Ke and Haibo Yu
Sustainability 2023, 15(21), 15307; https://doi.org/10.3390/su152115307 - 26 Oct 2023
Viewed by 794
Abstract
Numerous prior studies have substantiated the influence of residential layout on building energy consumption; however, their principal emphasis has predominantly been on urban and neighborhood contexts. Nevertheless, research conducted at the cluster scale has the potential to augment the well-being of neighboring communities [...] Read more.
Numerous prior studies have substantiated the influence of residential layout on building energy consumption; however, their principal emphasis has predominantly been on urban and neighborhood contexts. Nevertheless, research conducted at the cluster scale has the potential to augment the well-being of neighboring communities and render the objective of a reduction in energy consumption more pertinent to residents’ daily lives. Furthermore, there is a shortage of more robust metrics capable of quantifying the degree of mutual shading among individual buildings within residential neighborhoods. This shading factor constitutes a pivotal element impacting the energy consumption of individual structures. This study utilizes the VirVil-HTB2 tool to calculate solar radiation intensity for individual buildings, serving as a shading metric. Correlation and linear regression analyses are employed to quantify the causal relationship, allowing us to investigate the impact of residential complex layouts on the energy efficiency of individual buildings. The findings of this study indicate that solar radiation serves as a precise metric for gauging shading intensity among buildings, and building energy consumption exhibits a distinct block-like distribution pattern within the residential complex. Furthermore, through an analysis of the level of inter-building shading and a judicious optimization of the layout, it is feasible to achieve a reduction of up to 4.03% in heating energy consumption and a maximum reduction of 4.39% in cooling energy consumption. Full article
(This article belongs to the Special Issue Energy Efficiency and Multi-Objective Optimization in Building)
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19 pages, 9573 KiB  
Article
Green Renovation and Retrofitting of Old Buildings: A Case Study of a Concrete Brick Apartment in Chengdu
by Yijie Lin, Canyichen Cui, Xiaojun Liu, Gang Mao, Jianwu Xiong and Yin Zhang
Sustainability 2023, 15(16), 12409; https://doi.org/10.3390/su151612409 - 15 Aug 2023
Cited by 3 | Viewed by 3881
Abstract
With the progress of urbanization in China, the energy-saving renovation of a large number of existing buildings, especially old buildings, has become an important project for the green and low-carbon development of urban renewal. This paper takes the old brick school building in [...] Read more.
With the progress of urbanization in China, the energy-saving renovation of a large number of existing buildings, especially old buildings, has become an important project for the green and low-carbon development of urban renewal. This paper takes the old brick school building in a university in Chengdu as an example. Through field research, the existing problems of the building are analyzed in detail in terms of building function, structure and appearance, and a detailed plan for functional upgrading, structural reinforcement and façade renovation is drawn up, taking into account the actual requirements and environmental status. In addition, solar photovoltaic technology is integrated into the renovation of the building’s pitched roof. Through modelling and analysis, the amount of solar energy captured by the photovoltaic roof is quantitatively simulated and the dynamic energy-saving potential of the renovation project under changing actual meteorological conditions is pre-evaluated. The preliminary results indicate that such green renovations can contribute to about 164,066 kWh annual solar energy collection and the self-use electricity from the PV roof accounts for 42–76% of total energy consumption, leading to about 60% building energy consumption conservation. The payback period of such a renovation program is assessed to be about 1.9 years, which is quite economically feasible considering the local energy tariff policy. This paper explores the feasibility and design direction of green and low-carbon renovation and upgrading of old buildings, which can provide a reference for the application of green and low-carbon renovation of local old buildings. Full article
(This article belongs to the Special Issue Energy Efficiency and Multi-Objective Optimization in Building)
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36 pages, 14565 KiB  
Article
An HBIM Integrated Approach Using Non-Destructive Techniques (NDT) to Support Energy and Environmental Improvement of Built Heritage: The Case Study of Palazzo Maffei Borghese in Rome
by Cristina Cornaro, Gianluigi Bovesecchi, Filippo Calcerano, Letizia Martinelli and Elena Gigliarelli
Sustainability 2023, 15(14), 11389; https://doi.org/10.3390/su151411389 - 21 Jul 2023
Cited by 2 | Viewed by 1717
Abstract
Built heritage energy and environmental improvement is increasingly being recognised as a key driver in the fight against climate change. This effort necessitates a thorough understanding of the building to guide the selection of technologies and design solutions. To have a picture of [...] Read more.
Built heritage energy and environmental improvement is increasingly being recognised as a key driver in the fight against climate change. This effort necessitates a thorough understanding of the building to guide the selection of technologies and design solutions. To have a picture of the buildings’ characteristics and behaviour that is as complete as possible, in situ studies are essential, although the complexities and heterogeneities of historical buildings make these analyses still challenging, especially in professional practice. To address these issues, the paper describes an integrated approach including the field application of Non-Destructive Techniques (namely, Heat Flow Meter measurements, Infrared thermographies and indoor environmental monitoring) within a Heritage Building Information Modelling process. This interdisciplinary/integrated approach fostered the use of each type of analysis’s results to guide the subsequent analyses and incrementally deepen the knowledge of the building. The methodology was applied to a case study in the historical city centre of Rome in Italy. The analyses will be of service in developing dynamic building performance simulations to support the design of the interventions. Full article
(This article belongs to the Special Issue Energy Efficiency and Multi-Objective Optimization in Building)
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15 pages, 5773 KiB  
Article
Energy Consumption and Energy Saving Analysis of Air-Conditioning Systems of Data Centers in Typical Cities in China
by Tiezhu Sun, Xiaojun Huang, Caihang Liang, Riming Liu and Yongcheng Yan
Sustainability 2023, 15(10), 7826; https://doi.org/10.3390/su15107826 - 10 May 2023
Cited by 1 | Viewed by 2092
Abstract
The energy consumption status and energy saving potential of the air-conditioning systems of data centers in seven typical cities in China (Xinjiang, Beijing, Jinan, Shanghai, Nanning, Guilin, and Haikou), representing diverse climate regions, were studied. The power usage effectiveness (PUE) and cooling load [...] Read more.
The energy consumption status and energy saving potential of the air-conditioning systems of data centers in seven typical cities in China (Xinjiang, Beijing, Jinan, Shanghai, Nanning, Guilin, and Haikou), representing diverse climate regions, were studied. The power usage effectiveness (PUE) and cooling load factor (CLF) were taken as the evaluation indicators. First, the energy consumption situations of the existing air-conditioning systems were analyzed using an internship survey. Second, the meteorological data throughout the year for the seven cities were statistically analyzed. Then, two energy saving renovation schemes were proposed. The operating hours under different operating modes in the seven cities were calculated, and the PUE and energy saving potential of the two energy saving schemes were evaluated by taking the production of 15 °C chilled water as an example. This study provides an overall picture of the energy utilization status in the current Chinese data center market and provides solutions for improving the design of air-conditioning systems, with energy saving benefits. Full article
(This article belongs to the Special Issue Energy Efficiency and Multi-Objective Optimization in Building)
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