scholarly journals Assessing Embodied Energy and Greenhouse Gas Emissions in Infrastructure Projects

Buildings ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 1156-1170 ◽  
Author(s):  
Jan Krantz ◽  
Johan Larsson ◽  
Weizhuo Lu ◽  
Thomas Olofsson
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Embodied Energy ◽  
Infrastructure Projects ◽  
Gas Emissions

Analysis of Embodied Energy Consumption and Greenhouse Gas (GHG) Emissions in Chinese Manufacturing Industry

2012 ◽  
Vol 616-618 ◽  
pp. 1148-1153
Author(s):  
Dong Sun ◽  
Chu Xia Tong
Keyword(s):  
Energy Consumption ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Manufacturing Industry ◽  
Ghg Emissions ◽  
Calculation Model ◽  
Embodied Energy ◽  
Gas Emissions ◽  
Electric Equipment ◽  
Chinese Manufacturing Industry

This paper attempts to discuss the embodied energy consumption and embodied greenhouse gas emissions in manufacturing industry. Based the on input-output theory, this paper establishes the calculation model, which gives the calculation of embodied energy consumption and embodied greenhouse gas emissions of 2002 and 2007 respectively. By comparison, it draws the conclusion that the total direct energy consumption of 2007 is much more than the year of 2002, while the total embodied energy consumption is less than the year of 2002. However, Non-metallic mineral products, Metal smelting and pressing and Electric equipment and machinery perform otherwise. The reason accounting for the calculation results is that the embodied energy intensity is greatly decreased.

scholarly journals Selecting Insulating Materials for Building Envelope: A Life Cycle Approach

2021 ◽  
Vol 65 (2-4) ◽  
pp. 312-316
Author(s):  
Surnam Sonia Longo ◽  
Maurizio Cellura ◽  
Maria Anna Cusenza ◽  
Francesco Guarino ◽  
Ilaria Marotta
Keyword(s):  
Life Cycle ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Cellulose Fibers ◽  
Energy Performance ◽  
Embodied Energy ◽  
Life Cycle Approach ◽  
Insulation Material ◽  
Gas Emissions ◽  
Building Envelopes

This paper aims at assessing the embodied energy and greenhouse gas emissions (GHGs) of two building envelopes, designed for a two floors semi-detached house located in the Central Italy. The analysis is performed by applying the Life Cycle Assessment methodology, following a from cradle-to-gate approach. Fixtures (windows and doors), external and internal opaque walls, roof and floors (including interstorey floors) make the building envelopes. Their stratigraphy allows for achieving the thermal transmittance values established in the Italian Decree on energy performance of buildings. The two examined envelopes differ only for the insulation material: extruded expanded polystyrene (XPS) or cellulose fibers. The results shows that the envelope using cellulose fibers has better performance than that using XPS: it allows for reducing the embodied energy and the GHGs of about 13% and 9.3%, respectively. A dominance analysis allows to identify the envelope components responsible of the higher impacts and the contribution of the insulating material to the impacts. The study is part of the Italian research “Analysis of the energy impacts and greenhouse gas emissions of technologies and components for the energy efficiency of buildings from a life cycle perspective” funded by the Three-year Research Plan within the National Electricity System 2019-2021.

scholarly journals Mitigation Strategies for Reduction of Embodied Energy and Carbon, in the Construction Systems of Contemporary Quality Architecture

2019 ◽  
Vol 11 (14) ◽  
pp. 3806 ◽  
Author(s):  
Enrico Sicignano ◽  
Giacomo Di Ruocco ◽  
Roberta Melella
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Environmental Sustainability ◽  
Building Materials ◽  
Ghg Emissions ◽  
Mitigation Strategies ◽  
Embodied Energy ◽  
Design Strategies ◽  
Gas Emissions ◽  
Wide Range

The criticality related to the consumption of operational energy and related greenhouse gas (GHG) emissions of existing buildings is clearly decreasing in new buildings due to the strategies tested and applied in recent years in the energy retrofit sector. Recently, studies have been focusing on strategies to reduce environmental impacts related to the entire life cycle of the building organism, with reference to the reduction of embodied energy (and related greenhouse gas emissions) in building materials. As part of EEA’s European EBC project, Annex 57, a wide range of case studies have been promoted with the aim of identifying design strategies that can reduce the embodied energy and related greenhouse gas emissions of buildings. The aim of this paper is to investigate the most common construction systems in the construction industry (concrete, steel, wood) through the analysis of three contemporary architectural works, with the aim of identifying the predisposition for environmental sustainability of each technological system, thus guiding the operators in the sector towards design choices more compatible with the environmental requirements recommended by European legislation.

scholarly journals Multi-Objective Optimization of Building Life Cycle Performance. A Housing Renovation Case Study in Northern Europe

2020 ◽  
Vol 12 (18) ◽  
pp. 7807
Author(s):  
Francesco Montana ◽  
Kai Kanafani ◽  
Kim Wittchen ◽  
Harpa Birgisdottir ◽  
Sonia Longo ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Demand ◽  
Optimization Method ◽  
Optimization Techniques ◽  
Embodied Energy ◽  
Cycle Performance ◽  
Multi Objective Optimization ◽  
Gas Emissions ◽  
Multi Objective

While the operational energy use of buildings is often regulated in current energy saving policies, their embodied greenhouse gas emissions still have a considerable mitigation potential. The study aims at developing a multi-objective optimization method for design and renovation of buildings incorporating the operational and embodied energy demands, global warming potential, and costs as objective functions. The optimization method was tested on the renovation of an apartment building in Denmark, mainly focusing envelope improvements as roof and exterior wall insulation and windows. Cellulose insulation has been the predominant result, together with fiber cement or aluminum-based cladding and 2-layered glazing. The annual energy demand has been reduced from 166.4 to a range between 76.5 and 83.7 kWh/(m2 y) in the optimal solutions. The fact that the legal requirements of 70 kWh/(m2 y) are nearly met without building service improvements indicates that energy requirements can be fulfilled without compromising greenhouse gas emissions and cost. Since the method relies on standard national performance reporting tools, the authors believe that this study is a preliminary step towards more cost-efficient and low-carbon building renovations by utilizing multi-optimization techniques.

Sustainable Housing Construction to Reduce Greenhouse Gas Emissions

2013 ◽  
Vol 438-439 ◽  
pp. 1710-1714
Author(s):  
I. Patnaikuni ◽  
Sujeeva Setunge ◽  
M. Himabindu
Keyword(s):  
Global Warming ◽  
Environmental Impact ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Rural Areas ◽  
High Energy ◽  
Embodied Energy ◽  
Housing Construction ◽  
Thermal Mass ◽  
Gas Emissions

Global warming is a reality due to the curent level of greenhouse gas emissions globally. Housing construction should take into account factors which contribute to global warming while making the construction affordable in view of the greenhouse gas emissions and the continually increasing energy costs. It is important that housing construction overcomes the irrationality of the current conventional construction method which is not only expensive but has poor thermal performance and ignores the significant environmental impact of high embodied energy of the building process which contributes to the greenhouse gas emissions. Because of this there is a need for developing improved low cost sustainable building techniques. This paper presents an innovative rammed earth core concrete jacket walling system that can provide significant improvements in environmental impact, comfort and cost of both building the house and the cost of operational energy. The construction uses mainly local natural materials with very little high energy processing there by reducing the embodied energy of the construction. Not only using local materials in this construction but also only basic building skills are required for construction workers and therefore the system is ideally suited to rural areas and has potential application to developing countries. This method of construction has better performance in case of earth quakes which saves many lives. The paper presents a discussion of the efficiency of such high thermal mass solutions and describes the construction process.

Sign in / Sign up

Export Citation Format

Share Document