Possibilities of Using Prefabricated Modular Panels for Building NZEB Buildings in Earthquake-Affected Areas in Croatia – Case Study

Begić, Hana; Krstić, Hrvoje

doi:10.30880/ijscet.2022.13.01.013

Cited by 2 publications

(3 citation statements)

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“…Vertical components include prefabricated exterior wall panels (PEWPs) [28], prefabricated interior wall panels (PIWPs) [29], etc. Horizontal components include prefabricated stairs (PS) [23], prefabricated laminated panels (PLP) [30], prefabricated balconies (PB) [31], prefabricated air conditioning panels (PACP) [32], etc. These six types of prefabricated component are used in large quantities and contribute to large amounts of carbon emissions in prefabricated buildings.…”

Section: Basic Information On the Casementioning

confidence: 99%

Calculating and Analyzing Carbon Emission Factors of Prefabricated Components

Lei

Wang

2023

Sustainability

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The construction industry’s carbon emissions have a considerable impact on the environment, and all countries have pledged to reduce them to achieve low-carbon transformation. The use of prefabricated components is widely recognized as a crucial measure for mitigating carbon emissions. However, there is a scarcity of existing data on the carbon emission factors of prefabricated components (CEFoPC), and few studies have focused on calculating and reducing their carbon emissions. This study presents a novel approach to calculating CEFoPC, which involves analyzing the production process, defining the carbon emission range, identifying the sources of carbon emissions, and establishing measurement equations for the carbon emissions of prefabricated components. The proposed approach is demonstrated using six typical prefabricated components in Nanjing, China, namely, prefabricated exterior and interior wall panels, stairs, laminated panels, balconies, and air conditioning panels. After decomposing the carbon emission factors and exploring carbon emission reduction strategies, the findings suggest that the production and transportation of raw materials are the primary contributors to carbon emissions associated with prefabricated components. Additionally, the most effective carbon emission reduction strategy involves the use of green and recycled raw materials. Furthermore, the framework for calculating CEFoPC proposed in this study is considered a significant contribution, as it can facilitate future research and the enrichment of carbon emission factor databases.

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Section: Basic Information On the Casementioning

confidence: 99%

Calculating and Analyzing Carbon Emission Factors of Prefabricated Components

Lei

Wang

2023

Sustainability

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“…Modular construction is a developed process that could improve indoor air quality in construction projects for green buildings [31]. Digital technologies are important in enhancing the fabrication process [32] and the prefabrication procedures of such approaches [12]. For instance, BIM tools have been used to automate the manufacturing process of modular construction buildings in China [33] and South Korea [34].…”

Section: Modular Construction Designmentioning

confidence: 99%

“…In the literature, several methods and tools have been applied to tackle the energy efficiency issue in construction projects, such as nearly zero-energy buildings (NZEBs) [12] and building information modeling (BIM) [13]. There are several modeling and optimization tools to evaluate the energy management and efficiency in buildings that use BIM combined with other tools such as sustainability [13], life cycle assessment (LCA) [14], life cycle cost (LCC) [15], building energy modeling (BEM) methodology [16], and multi-criteria decisionmaking (MCDM) [17].…”

Section: Introductionmentioning

confidence: 99%

Influence of Ventilation Openings on the Energy Efficiency of Metal Frame Modular Constructions in Brazil Using BIM

Najjar,

De Araujo,

Oladimeji

et al. 2023

Eng

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Construction projects demand a higher amount of energy predominantly for heating, ventilation, and illumination purposes. Modular construction has come into the limelight in recent years as a construction method that uses sustainable building materials and optimizes energy efficiency. Ventilation openings in buildings are designed to facilitate air circulation by naturally driven ventilation and could aid in reducing energy consumption in construction projects. However, a knowledge gap makes it difficult to propose the best dimensions of ventilation openings in buildings. Hence, the aim of this work is to empower the decision-making process in terms of proposing the best ventilation opening dimensions toward sustainable energy use and management in buildings. A novel framework is presented herein to evaluate the impact and propose the best dimensions of ventilation openings for metal frame modular construction in Brazil, using building information modeling. The ventilation openings were constructed and their dimensions evaluated in eight Brazilian cities, based on the bioclimatic zone (BioZ) classification indicated in ABNT NBR 15220: Curitiba (1st BioZ); Rio Negro (2nd BioZ); São Paulo (3rd BioZ); Brasília (4th BioZ); Campos (5th BioZ); Paranaíbe (6th BioZ); Goiás (7th BioZ); and Rio de Janeiro (8th BioZ). The study results show that the energy consumption of the same building model would vary based on the dimensions of ventilation openings for each BioZ in Brazil. For instance, modeling the same modular construction unit in the city of Rio Negro could consume around 50% of the energy compared to the same unit constructed in the city of Rio de Janeiro, using the small opening sizes based on the smallest dimensions of the ventilation openings. Similarly, modeling the construction unit in Curitiba, São Paulo, Brasília, Campos, Paranaíba, and Goiás could reduce energy consumption by around 40%, 34%, 36%, 18%, 20%, and 16%, respectively, compared to constructing the same building in the city of Rio de Janeiro, using the small opening sizes based on the smallest dimensions of the ventilation openings. This work could help practitioners and professionals in modular construction projects to design the best dimensions of the ventilation openings based on each BioZ towards increasing energy efficiency and sustainability.

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Possibilities of Using Prefabricated Modular Panels for Building NZEB Buildings in Earthquake-Affected Areas in Croatia – Case Study

Cited by 2 publications

References 0 publications

Calculating and Analyzing Carbon Emission Factors of Prefabricated Components

Calculating and Analyzing Carbon Emission Factors of Prefabricated Components

Influence of Ventilation Openings on the Energy Efficiency of Metal Frame Modular Constructions in Brazil Using BIM

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