Embodied Energy in Building Construction

2014 ◽  
Vol 70 (7) ◽  
Author(s):  
S. Balubaid ◽  
R. M. Zin ◽  
M. Z. Abd Majid ◽  
J. S. Hassan ◽  
Samihah Mardzuki
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Building Construction ◽  
Embodied Energy ◽  
Future Design ◽  
Efficient Construction ◽  
The Common ◽  
Energy Indicators ◽  
Construction Knowledge ◽  
The Right

Building construction systems that come in different forms and types need to be properly selected before being use, this may have different impact on overall embodied energy of the building construction. Hence, in order to achieve and maximize the construction contribution, the designer plays a big role in choosing the appropriate energy efficient construction. The designers need to be equipped with the right knowledge and tool which gathers a possible range of embodied energy indicators in order to select energy efficient construction. This paper aims at confirming the Malaysian common construction systems and compares it with the historical literature while it also explore energy efficiency in building construction. It is based on the common construction knowledge and also on the published literatures through a critical review of the possible range of embodied energy indicators and construction systems. The study demonstrated and confirmed that Malaysian common building construction systems can be categorized into six groups: Structural frame, Slab, Internal wall, External Wall, Roof and Staircase. This finding is highly significant for the future design in the area of energy efficiency.

scholarly journals Problems of energy-efficient construction in the Republic of Kazakhstan and the development of a methodology for determining the energy efficiency of buildings and structures

2020 ◽  
Vol 77 (4) ◽  
pp. 189-199
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Air Conditioning ◽  
Hot Water ◽  
Construction Sector ◽  
Progressive Development ◽  
Efficient Construction ◽  
New Construction ◽  
The Republic ◽  
Housing Facilities

The progressive development of the economy of the Republic of Kazakhstan is impossible without solving the issues of increasing energy efficiency and energy conservation. These issues are very relevant in the construction sector of Kazakhstan. Housing facilities, on average, consume 2-3 times more heat per square meter, than buildings in Europe. However, in Kazakhstan until now there is no methodology for determining the energy efficiency of buildings and structures that meets modern requirements. The methodology discussed in this article is harmonized with EU requirements and establishes a method for calculating the annual energy consumption of buildings for heating, hot water, ventilation and air conditioning, taking into account auxiliary energy for the operation of these systems, and is intended for use in the design of new construction, reconstruction (modernization) residential and public buildings, as well as operated buildings and structures.

scholarly journals Use of innovative low carbon materials for sustainable energy-efficient housing in Nigeria

2018 ◽  
Vol 4 (2) ◽  
pp. 11-15
Author(s):  
Albert Abiodun Olotuah ◽  
Ayobami Margaret Olotuah ◽  
Abiodun Olukayode Olotuah
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Carbon Materials ◽  
Sustainable Energy ◽  
Embodied Energy ◽  
Supplementary Cementitious Materials ◽  
Housing Construction ◽  
Low Carbon ◽  
Palm Oil Fuel Ash ◽  
Concrete Production

Sustainable energy-efficient housing is environmentally-conscious housing. Energy efficient houses consume less energy while maintaining or improving the comfort conditions of occupants. This paper examines low carbon initiatives in housing construction in Nigeria based on the use of stabilized soil blocks, solid interlocking blocks, and supplementary cementitious materials such as fly ash, rice husk ash, palm oil fuel ash, and their various combinations in concrete production as low carbon materials. These are materials readily available in Nigeria and can be useful for sustainable housing construction. Their use is for the purpose of reducing embodied energy in construction of houses and reduction of operational energy in housing use. Owing to the poor state of energy generation and transmission in Nigeria energy efficiency measures are imperative to reduce the energy required in houses. The paper thus affirms the need to adopt energy efficiency strategies in housing in order to achieve eco-friendly and sustainable environment in Nigeria.

scholarly journals Improving the efficiency of capital repairs of apartment buildings through energy-saving measures (on the example of the Republic of Tatarstan)

2021 ◽  
Vol 274 ◽  
pp. 10011
Author(s):  
Evgeniya Ilina ◽  
Diana Gafurova ◽  
Andrey Puris
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Efficient ◽  
The State ◽  
Apartment Building ◽  
Apartment Buildings ◽  
Efficient Construction ◽  
The Republic

The article discusses the energy-efficient repair and construction of apartment buildings, as well as the dynamics of changes in the energy efficiency class of apartment buildings in the Republic of Tatarstan. The object of the study is directly the energy efficiency of apartment buildings, as well as its increase in the course of major repairs and construction of apartment buildings. The article also discusses measures to improve the energy efficiency of apartment blocks. The purpose of the study is to analyze the state of management of energy efficient construction and repair of apartment building, mainly using the example of the Republic of Tatarstan.

scholarly journals Innovation and certification as the basis for the development of energy-efficient construction

2019 ◽  
Vol 110 ◽  
pp. 02125 ◽  
Author(s):  
Natalya Trukhina ◽  
Valery Barinov ◽  
Yana Andryunina ◽  
Andrey Panenkov ◽  
Nikolay Voytolovskiy
Keyword(s):  
Energy Efficiency ◽  
Real Estate ◽  
Energy Efficient ◽  
Environmental Safety ◽  
Real Estate Market ◽  
Environmental Certification ◽  
The Real Estate ◽  
Investment Projects ◽  
Advantages And Disadvantages ◽  
Efficient Construction

Within the framework of the concept of sustainable development, issues of energy efficiency, environmental safety, minimization of anthropogenic impact on the environment are of particular relevance. In construction, these theses are projected onto the segment of energy-efficient, “green” construction. Nowadays, the development of energy-efficient construction in Russia is progressing at a slow pace, and this is primarily due to the lack of an integrated energy management system, environmental certification of construction products, and institutional features of the real estate market. The authors systematized the methods of improving energy efficiency and greening of construction regarding the types of real estate, analyzed the main global and Russian environmental certification systems in construction, identified the features, advantages and disadvantages of each system, substantiated the need to ensure the generally accepted Russian certification system. The problem of enhancing energy-efficient construction is also interconnected with the need to increase the level of innovation in construction, which is substantiated by the authors in the paper. The authors substantiated the need to change the criteria for monitoring investment projects, taking into account the optimization of energy efficiency and environmental performance of real estate.

scholarly journals Life Cycle Energy Assessment of a School Building under Envelope Retrofit: An Approach towards Environmental Impact Reduction

2019 ◽  
Vol 111 ◽  
pp. 03028
Author(s):  
Nazanin Moazzen ◽  
Mustafa Erkan Karagüler ◽  
Touraj Ashrafian
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Energy Consumption ◽  
Energy Efficient ◽  
Embodied Energy ◽  
Rational Approach ◽  
Cycle Phase ◽  
School Building ◽  
The Impact

Energy efficiency of existing buildings is a concept to manage and restrain the growth in energy consumption and one of the crucial issues due to the magnitude of the sector. Educational buildings are in charge of about 15% of the total energy consumption of the non-residential building sector. However, not only operational but also embodied energy of a building should be reduced to get the overall benefits of energy efficiency, where, using energy efficient architectural measures and low emitting materials during every retrofit action can be a logical step. The majority of buildings in Turkey and EU was built earlier than the development of the energy efficiency in the construction sector, hence, without energy retrofit, consume an enormous amount of energy that can be averted significantly by the implementation of some even not advanced retrofit measures. Furthermore, demolishing of a building to construct a new one is not a rational approach concerning cost, time and environmental pollution. The study has been focused on the impact assessment of the various architectural scenarios of energy efficiency upgrading on the Life Cycle Energy Consumption (LCEC) and Life Cycle CO2 (LCCO2) emission. Within the scope of the study, a primary school building is selected to be analysed. Through analysis, the total embodied and operational energy use and CO2 emission regarding the life cycle phase of the building is quantitatively defined and investigated in the framework of life cycle inventory. The paper concentrates on the operation and embodied energy consumption arising from the application of a variety of measures on the building envelope. An educational building with low LCCO2 emissions and LCEC in Turkey is proposed. To exemplify the approach, contributions are applied to a case study in Istanbul as a representative school building. The primary energy consumption of the case study building is calculated with a dynamic simulation tool, EnergyPlus. Afterwards, a sort of architectural energy efficient measures is implemented in the envelope while the lighting and mechanical systems remain constant. The energy used in the production and transportation of materials, which are the significant parts of the embodied energy, are taken into account as well.

scholarly journals A New Core Level Utilization Algorithm for Energy-Efficient Multicore Systems

2020 ◽  
Vol 14 ◽  
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Multicore Processors ◽  
Energy Performance ◽  
Utilization Rate ◽  
Design Metrics ◽  
Core Energy ◽  
And Performance ◽  
The Right ◽  
Semiconductor Chips

The energy consumption is becoming a constraint on all computer devices, from smartphones to supercomputers. Consequently, the focus has moved from performance to energy and power consumption. Design metrics are not only based solely on performance, as the energy performance of application executions is becoming the main aspect of architecture. Also, Design metrics depend on, the manufacturers of semiconductor chips which, have implemented multicore processors to boost the level of energy efficiency by using verified techniques for voltage and frequency scaling. To utilize the maximum potential of such architectures, we need to make the right decisions because parameters such as core type, frequency, and utilization typically affect power dissipation and performance. This paper proposes a new algorithm to achieve energy-efficient by monitoring core energy and level utilization control such as: Increasing the number of cores to execute the task, scaling voltage, and frequency. Based on the built model, we analyze the energy efficiency variations for different platform configurations providing the same level of performance. We show that trading the number and type of core with frequency and voltage level and core utilization rate can lead to substantial energy efficiency gains.

scholarly journals An assessment of the impact of selected construction materials on the life cycle energy performance and thermal comfort in buildings

2021 ◽  
Author(s):  
◽  
Rajesh Haripersad
Keyword(s):  
South Africa ◽  
Energy Efficiency ◽  
Life Cycle ◽  
Thermal Comfort ◽  
Thermal Performance ◽  
Energy Efficient ◽  
Construction Materials ◽  
Embodied Energy ◽  
Energy Usage ◽  
The Impact

South Africa is a developing country with various construction projects that are being undertaken both by government and the private sector. The requirements for the construction of energy-efficient buildings as well as the selection methods for providing construction materials have hence become important. Energy efficiency improvements needs to be implemented in the construction of these buildings in order to decrease energy usage and costs and provide more comfortable conditions for its occupants. Previous studies revealed that most of the focus for improving energy efficiency in buildings has been on their operational emissions. It is estimated that about 30% of all energy consumed throughout the lifetime of a building is utilized as embodied energy (this percentage varies based on factors such as age of building, climate and materials). In the past this percentage was much lower, but with increased emphasis placed on reducing operational emissions (such as energy efficiency improvements in heating and cooling systems), the embodied energy contribution has become more significant. Hence, it is important to employ a life-cycle carbon framework in analysing the carbon emissions in buildings. The study aims to augment energy efficiency initiatives by showcasing energy reduction strategies for buildings. The study assessed the thermal performance of selected construction materials by analysing different buildings using energy modelling program, EnergyPlus and TRNSYS. The parametric study was set in the central plateau region of South Africa and was performed to determine appropriate energy efficiency improvements that can be implemented for maximum savings. A life cycle cost analysis was performed on the selected improvements. The models created are representative of the actual buildings when simulated data is compared to recorded data from these buildings. Results showed a significant variation in energy and construction costs with varying construction materials over the buildings’ life cycle. Findings suggest that there is a significant reduction in energy usage when simple efficiency measures are implemented. The study recommends the use of different energy efficient building materials and the implementation of passive interventions in the constructing of buildings; the thermal performance of a building be optimized to ensure thermal comfort and the developed model be adopted for use in the engineering and construction industry for the reduction of energy consumption.

scholarly journals Technical issues and energy efficient adaptive reuse of heritage listed city halls in Queensland Australia

2018 ◽  
Vol 36 (5) ◽  
pp. 529-542 ◽  
Author(s):  
Shabnam Yazdani Mehr ◽  
Sara Wilkinson
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Adaptive Reuse ◽  
The Body ◽  
Embodied Energy ◽  
Case Study Methodology ◽  
Content Type ◽  
Heritage Buildings ◽  
Heritage Building ◽  
Technical Issues

Purpose Adaptive reuse of heritage stock has several advantages: retention of culturally and socially significant buildings, as well as the opportunity to consider embodied energy, energy efficiency retrofit measures and other environmental upgrades. The purpose of this paper is to identify the technical issues faced in the adaptive reuse of Australian heritage listed city halls and discuss sustainable strategies to enable further adaptations to be more energy efficient. Design/methodology/approach Adaptive reuse of a heritage building provides an opportunity to retain embodied energy, improve energy efficiency and enhance durability, which are important aspects of the technical lifecycle of a building. Using a case study methodology and a qualitative approach, this paper evaluates adaptations and the technical issues faced in three heritage city halls in Queensland, Australia. Findings The analysis shows that enhancing energy efficiency enables heritage buildings to reduce their climate change impacts. However, the installation of equipment for energy efficiency can pose technical issues for heritage buildings. The ownership of heritage building and interest of the local community affects the solutions that are viable. Solutions and further sustainable strategies are proposed through analysis of case studies. Originality/value City halls globally adopt different and varied architectural designs, features and scales. They are often heritage listed and locally significant landmarks that have undergone various adaptations; however, they have been overlooked in much adaptive reuse research, particularly in Australia. City halls differ from other heritage buildings in their collective sense of ownership which is important in regard to proposed changes, as citizens have an interest and hold opinions which may affect measures adopted. This paper contributes to the body of knowledge related to energy efficient technical adaptive reuse of city halls.

scholarly journals Energy efficiency in civil engineering: analyzing world experience

2018 ◽  
Vol 212 ◽  
pp. 02009
Author(s):  
Tatiana Bezdenezhnukh ◽  
Andrey Kuritsyn ◽  
Irina Gimelshtein
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Efficient ◽  
Civil Engineering ◽  
The World ◽  
Efficient Construction ◽  
Almost All

There are consistent trends in the development of energy-saving technologies in civil engineering in almost all countries of the world. The article considers the main approaches to ensuring energy efficiency in in civil engineering, analyzes the standards of energy-efficient construction in the world in general and in Russia in particular, and gives some recommendations on increasing energy efficiency in engineering.

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