Special Issues

Innovative Strategies for Energy-Efficient Buildings in a Sustainable Future

Submission Deadline: 01 September 2025 (closed) View: 1600 Submit to Journal

Guest Editor(s)

Prof. Fujen Wang

Email: fjwang@ncut.edu.tw

Affiliation: Department of Refrigeration, Air Conditioning and Energy Engineering, National Chin-Yi University of Technology, Zhongshan Road, Taiping District, Taichung, 41170, Taiwan

Homepage:

Research Interests: Cleanrooms, Energy-efficient buildings, Indoor environmental quality

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Prof. Chi-ming Lai

Email: cmlai@mail.ncku.edu.tw 

Affiliation: Department of Civil Engineering, National Cheng Kung University, No. 1, University Road, East District, Tainan, 701, Taiwan

Homepage:

Research Interests: Building energy, Smart living space, Architectural engineering

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Prof. Dibakar Rakshit

Email: dibakar@dese.iitd.ac.in 

Affiliation: Department of Energy Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India

Homepage:

Research Interests: Energy storage devices, Battery Thermal Management Systems, Polygeneration

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Summary

This special issue explores advancements in energy-efficient buildings to address global energy challenges and climate change. With buildings contributing significantly to energy consumption and emissions, their transformation is key to achieving net-zero energy buildings and building decarbonization.


Key topics include HVAC system optimization for improved efficiency, renewable energy integration to reduce reliance on fossil fuels, and smart building technologies for real-time energy monitoring and adaptive controls. Building energy modeling and thermal comfort analysis are emphasized as essential tools for evaluating energy performance, indoor environmental quality, and occupant satisfaction under diverse conditions.


Contributions highlight interdisciplinary approaches to sustainable architecture, integrating passive and active design strategies, advanced materials, and innovative control algorithms. Practical insights are offered through case studies on energy-efficient retrofitting and cutting-edge solutions for residential, commercial, healthcare, and industrial buildings.


The issue also focuses on improving indoor air quality, balancing energy efficiency with occupant health and comfort. Policy implications, strategies for promoting energy-efficient practices, and equitable access to sustainable building technologies are discussed.


By showcasing current advancements and future directions, this issue provides a collaborative platform for transforming the building sector into a foundation of sustainability and resilience.


Keywords

Energy-efficient buildings, HVAC system optimization, Renewable energy integration, Smart building technologies, Building energy modeling, Thermal comfort analysis, Net-zero energy buildings, Sustainable architecture, Building decarbonization, Indoor air quality

Published Papers


  • Open Access

    ARTICLE

    Analysis of Airflow Distribution in Class 100 and Class 1000 Semiconductor Cleanrooms with a Shared Return Air Chamber

    Indra Permana, Zulvi Alfiqri Hidayatulloh, Alya Penta Agharid, Pramod Vishwakarma
    Energy Engineering, DOI:10.32604/ee.2026.085663
    (This article belongs to the Special Issue: Innovative Strategies for Energy-Efficient Buildings in a Sustainable Future)
    Abstract Semiconductor cleanrooms require stable airflow distribution to control airborne contamination, maintain pressure balance, and protect process-critical zones. However, cleanroom performance is not determined only by cleanliness classification or supply airflow rate; the interaction between raised floor design, FFU velocity, and return airflow distribution can strongly influence recirculation and airflow uniformity. This study evaluates the airflow performance of a semiconductor cleanroom consisting of Class 100 and Class 1000 zones using field measurements and computational fluid dynamics (CFD) simulation. Field measurements of particle concentration, airflow velocity, temperature, and relative humidity were conducted under as-built conditions. The measured… More >

  • Open Access

    ARTICLE

    Impact of Building Materials for the Facade on Energy Consumption and Carbon Emissions (Case Study of Residential Buildings in Tehran)

    Amir Sina Darabi, Mehdi Ravanshadnia
    Energy Engineering, Vol.122, No.9, pp. 3753-3792, 2025, DOI:10.32604/ee.2025.065241
    (This article belongs to the Special Issue: Innovative Strategies for Energy-Efficient Buildings in a Sustainable Future)
    Abstract Although currently, a large part of the existing buildings is considered inefficient in terms of energy, the ability to save energy consumption up to 80% has been proven in residential and commercial buildings. Also, carbon dioxide is one of the most important greenhouse gases contributing to climate change and is responsible for 60% of global warming. The facade of the building, as the main intermediary between the interior and exterior spaces, plays a significant role in adjusting the weather conditions and providing thermal comfort to the residents. In this research, 715 different scenarios were defined… More >

  • Open Access

    ARTICLE

    Impact of Duty Cycling HVAC Systems on Thermal Comfort, Energy Consumption, and Operational Costs

    Alya Penta Agharid, Indra Permana, Linlan Chang, Yi-Han Luo, Fujen Wang
    Energy Engineering, Vol.122, No.9, pp. 3839-3866, 2025, DOI:10.32604/ee.2025.068586
    (This article belongs to the Special Issue: Innovative Strategies for Energy-Efficient Buildings in a Sustainable Future)
    Abstract Air conditioning (AC) is essential for maintaining indoor comfort during Taiwan’s hot and humid summers but significantly contributes to increased energy consumption. This study evaluates the effects of AC duty-cycling strategies on energy performance, thermal comfort, and operational costs in office environments. Duty-cycling was implemented using a building energy management system (BEMS), which remotely controlled the ON/OFF cycles of AC units. Five duty-cycling modes were tested, with some modes incorporating air circulation during OFF periods. Field measurements of energy consumption, temperature, humidity, and air velocity were conducted and integrated with thermal comfort analysis tools to… More >

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