scholarly journals Towards sustainable housing: ABS industrialized passive buildings = Hacia la vivienda sostenible: los edificios industrializados pasivos ABS

2018 ◽  
Vol 2 (2) ◽  
pp. 53
Author(s):  
Pedro García SanMiguel ◽  
Julian García Muñoz
Keyword(s):  
Energy Consumption ◽  
Co2 Emissions ◽  
Energy Demand ◽  
Ghg Emissions ◽  
Construction Sector ◽  
Sustainable Housing ◽  
Energy Demands ◽  
Use Stage ◽  
Building System ◽  
Model Versus

Abstract Promoting innovation in the construction sector is one of the cornerstones of sustainability, since it is one of the main responsible for GHG emissions. This paper provides a proposal for sustainable housing: the industrialized passive home of American Building System Company (ABS) and its suitability to be incorporated into the construction system. Following the comparative analysis of the energy demands of this model versus an equivalent house which follows the regulations of the CTE. These data will be simulated by the SG SAVE software that perform the energy simulation of the both systems, based on the transmittance values of enclosures and glass and the final tightness of the homes. From these results about the savings in energy consumption, an economic analysis has been carried out and an assessment of the amortization period of the proposed house facing the other. In addition, through the calculation coefficients of equivalent CO2 emissions from the Spanish Ministry of Industry, the reduction of greenhouse gas emissions associated with energy consumption during the use stage has been obtained. Finally, for a standardize comfort conditions, the modelling and the assessment allow us to conclude that the deployment of ABS house in comparison with the conventional Spanish system supposes a reduction of 60% in energy demand, a 90% in CO2 emissions, and an amortization period of 12 years. With all these evidences we should start to think why this system has not been already integrated in the Spanish construction sector. Resumen Fomentar la innovación en el sector de la construcción es una de las piedras angulares de la sostenibilidad, pues la construcción es uno de los sectores responsables de las emisiones de GEI. Este artículo busca ofrecer una propuesta para la construcción sostenible: la vivienda pasiva industrializada de la empresa American Building System (ABS) y su idoneidad para ser incorporada como sistema constructivo tras el análisis comparativo de sus demandas energéticas frente a los de una vivienda equivalente que sigue la normativa del Código Técnico de la Edificación. Estos datos han sido obtenidos a partir del modelado energético de la vivienda a través del software SG SAVE, en función de los valores de transmitancia de cerramientos y vidrios y la estanqueidad final de la vivienda. A partir de estos resultados se ha realizado un análisis económico y se ha calculado el periodo de amortización de la vivienda propuesta frente a la del sistema convencional. Por otro lado, mediante los coeficientes de cálculo de emisiones del Ministerio de Industria Español, ha sido posible estimar la reducción emisiones de CO2 asociadas al consumo de energía durante la etapa de uso como consecuencia de la reducción de demanda energética entre ambas viviendas. Finalmente, para unas condiciones de confort normalizadas, la modelización energética y el análisis de resultados nos permiten concluir que la vivienda ABS en comparación con la vivienda del sistema convencional español nos permite reducir la demanda energética en hasta un 60%, las emisiones de CO2 en hasta un 90%, con un período de amortización de 12 años. Con todas estas evidencias de mejoría se plantea una reflexión final que es la de por qué este tipo de sistemas constructivos no están todavía integrados en el modelo constructivo español .

The Relationship between Economics Growth and Energy Consumption in China-A Empirical Analysis Based on Energy Kuznets Curve

2014 ◽  
Vol 1073-1076 ◽  
pp. 2457-2461
Author(s):  
Chang Sheng Li ◽  
Qing Ling Li ◽  
Zhong Min Lei ◽  
Han Yang ◽  
Hui Qing Qu
Keyword(s):  
Energy Consumption ◽  
Total Energy ◽  
Empirical Analysis ◽  
Energy Demand ◽  
Kuznets Curve ◽  
Total Energy Consumption ◽  
Energy Demands ◽  
High Level ◽  
The Relationship ◽  
Relative High Level

These paper investigated the relationship between economics development and energy demands based on Energy Kuznets Curve (EFC) in China. The results show that, the prospects of economics and energy demand in China in further will undergo three important stages to 2050.The peak of energy demand maybe around 2035 and the corresponding total energy demand maybe amount 5.7 billion tce. In 2035, the GDP per capital maybe about 17000 (2005 US$) and the urbanization will reach a relative high level. It is urgent for China to take actions to curb the increasing total energy consumption.

The Scenario Forecasting Analysis of CO2 Emissions of China

2013 ◽  
Vol 869-870 ◽  
pp. 836-839
Author(s):  
Jian Jun Wang ◽  
Li Li
Keyword(s):  
Economic Development ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Future Prospect ◽  
Ghg Emissions ◽  
The Future ◽  
Forecasting Analysis ◽  
The Impact

This paper uses STRIPAT models to find the impact of population, economy and technology on CO2 emissions of China. The result shows the impact of population, economy and technology on CO2 emissions are 1.253, 1.076, and 1.077 respectively. According to the future prospect of China, three scenarios of Chinas economic development are given to forecast the CO2 emissions, the forecasting results shows that if Chinas economic, population and energy consumption is increasing 7%, 0.4%, 5% every year, respectively. CO2 emissions will reach 21.05×108t in 2020. The CO2 emissions per unit GDP is decreasing by 45.54% in 2020 compared to 2005, which can fulfill the Chinese governments promise to decrease the GHG emissions per unit GDP by 40-45% in 2020 compared to 2005.

scholarly journals Modeling County-Level Energy Demands for Commercial Buildings Due to Climate Variability with Prototype Building Simulations

World ◽  
2020 ◽  
Vol 1 (2) ◽  
pp. 67-89
Author(s):  
Daniel L. Mendoza ◽  
Carlo Bianchi ◽  
Jermy Thomas ◽  
Zahra Ghaemi
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Salt Lake ◽  
Weighted Average ◽  
Building Energy ◽  
Commercial Buildings ◽  
Climate Projections ◽  
Level Energy ◽  
Climate Scenarios ◽  
Energy Demands

The building sector accounts for nearly 40% of total primary energy consumption in the U.S. and E.U. and 20% of worldwide delivered energy consumption. Climate projections predict an increase of average annual temperatures between 1.1–5.4 °C by 2100. As urbanization is expected to continue increasing at a rapid pace, the energy consumption of buildings is likely to play a pivotal role in the overall energy budget. In this study, we used EnergyPlus building energy models to estimate the future energy demands of commercial buildings in Salt Lake County, Utah, USA, using locally-derived climate projections. We found significant variability in the energy demand profiles when simulating the study buildings under different climate scenarios, based on the energy standard the building was designed to meet, with reductions ranging from 10% to 60% in natural gas consumption for heating and increases ranging from 10% to 30% in electricity consumption for cooling. A case study, using projected 2040 building stock, showed a weighted average decrease in heating energy of 25% and an increase of 15% in cooling energy. We also found that building standards between ASHRAE 90.1-2004 and 90.1-2016 play a comparatively smaller role than variation in climate scenarios on the energy demand variability within building types. Our findings underscore the large range of potential future building energy consumption which depends on climatic conditions, as well as building types and standards.

scholarly journals Impact of Shape Factor on Energy Demand, CO2 Emissions and Energy Cost of Residential Buildings in Cold Oceanic Climates: Case Study of South Chile

2021 ◽  
Vol 13 (17) ◽  
pp. 9491
Author(s):  
Manuel Carpio ◽  
David Carrasco
Keyword(s):  
Co2 Emissions ◽  
Shape Factor ◽  
Energy Demand ◽  
Architectural Design ◽  
Residential Buildings ◽  
Thermal Transmittance ◽  
Energy Demands ◽  
Oceanic Climate ◽  
The Impact

The increase in energy consumption that occurs in the residential sector implies a higher consumption of natural resources and, therefore, an increase in pollution and a degradation of the ecosystem. An optimal use of materials in the thermal envelope, together with efficient measures in the passive architectural design process, translate into lower energy demands in residential buildings. The objective of this study is to analyse and compare, through simulating different models, the impact of the shape factor on energy demand and CO2 emissions depending on the type of construction solution used in the envelope in a cold oceanic climate in South Chile. Five models with different geometries were considered based on their relationship between exposed surface and volume. Additionally, three construction solutions were chosen so that their thermal transmittance gradually complied with the values required by thermal regulations according to the climatic zone considered. Other parameters were equally established for all simulations so that their comparison was objective. Ninety case studies were obtained. Research has shown that an appropriate design, considering a shape factor suitable below 0.767 for the type of cold oceanic climate, implies a decrease in energy demand, which increased when considering architectural designs in the envelope with high values of thermal resistance.

scholarly journals Review of the Estimation Methods of Energy Consumption for Battery Electric Buses

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7578
Author(s):  
Ali Saadon Al-Ogaili ◽  
Ali Q. Al-Shetwi ◽  
Hussein M. K. Al-Masri ◽  
Thanikanti Sudhakar Babu ◽  
Yap Hoon ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Ghg Emissions ◽  
Big Data Analytics ◽  
Optimization Methods ◽  
Estimation Methods ◽  
Real World Data ◽  
Battery Capacity ◽  
Bus Network ◽  
The Impact

In the transportation sector, electric battery bus (EBB) deployment is considered to be a potential solution to reduce global warming because no greenhouse gas (GHG) emissions are directly produced by EBBs. In addition to the required charging infrastructure, estimating the energy consumption of buses has become a crucial precondition for the deployment and planning of electric bus fleets. Policy and decision-makers may not have the specific tools needed to estimate the energy consumption of a particular bus network. Therefore, many state-of-the-art studies have proposed models to determine the energy demand of electric buses. However, these studies have not critically reviewed, classified and discussed the challenges of the approaches that are applied to estimate EBBs’ energy demands. Thus, this manuscript provides a detailed review of the forecasting models used to estimate the energy consumption of EBBs. Furthermore, this work fills the gap by classifying the models for estimating EBBs’ energy consumption into small-town depot and big-city depot networks. In brief, this review explains and discusses the models and formulations of networks associated with well-to-wheel (WTW) assessment, which can determine the total energy demand of a bus network. This work also reviews a survey of the most recent optimization methods that could be applied to achieve the optimal pattern parameters of EBB fleet systems, such as the bus battery capacity, charger rated power and the total number of installed chargers in the charging station. This paper highlights the issues and challenges, such as the impact of external factors, replicating real-world data, big data analytics, validity index, and bus routes’ topography, with recommendations on each issue. Also, the paper proposes a generic framework based on optimization algorithms, namely, artificial neural network (ANN) and particle swarm optimization (PSO), which will be significant for future development in implementing new energy consumption estimation approaches. Finally, the main findings of this manuscript further our understanding of the determinants that contribute to managing the energy demand of EBBs networks.

scholarly journals Eco-Efficient Ventilated Facades Based on Circular Economy for Residential Buildings as an Improvement of Energy Conditions

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7266
Author(s):  
Pilar Mercader-Moyano ◽  
Paula Anaya-Durán ◽  
Ana Romero-Cortés
Keyword(s):  
Climate Change ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Circular Economy ◽  
Industrial Development ◽  
Residential Buildings ◽  
International Energy Agency ◽  
Energy Conditions ◽  
Construction Sector ◽  
Severe Problem

In a planet with limited resources, climate change is a severe problem, intensified by industrial development. This is particularly important in the construction sector. According to the International Energy Agency (2021), the construction sector is responsible for 40% of the global energy consumption and 36% of CO2 emissions. In this way, sustainable architectural solutions should be a priority in our fight against climate change, for it is necessary to propose solutions that help to reuse existing resources, thus reducing consumption. In this sense, the rehabilitation of buildings with solutions that favor the circular economy will become a key element in the construction sector. This work provides the design of a facade for building rehabilitation based on the circular economy paradigm, which is implanted in a model building as a case study. The HULC tool quantifies the improvement in energy efficiency that this rehabilitation entails when compared to a conventional facade. With the designed facade, a reduction in energy losses through the envelope is achieved, as well as an improvement in living conditions and environmental impact. Next, an analysis of the building’s energy consumption and CO2 emissions is carried out with the Open BIM Quantities tool. This tool is used by construction researchers and professionals. Finally, the results show the improvements in the rehabilitation of the facade.

scholarly journals Le potentiel de la biomasse forestière comme source d’énergie pour le Canada

2011 ◽  
Vol 87 (03) ◽  
pp. 345-350 ◽  
Author(s):  
David Paré ◽  
Pierre Bernier ◽  
Evelyne Thiffault ◽  
Brian Titus
Keyword(s):  
Energy Source ◽  
Heat Production ◽  
Energy Demand ◽  
Forest Biomass ◽  
Ghg Emissions ◽  
Combined Heat And Power ◽  
Energy Demands ◽  
Biomass Supply ◽  
Relative Scarcity ◽  
Le Canada

There is a growing interest in using forest biomass as an energy source. The main objectives of this paper are to give some figures and perspectives on Canadian forest biomass supply with respect to Canada's energy demand and to examine the potential of using this feedstock for reducing our greenhouse gas (GHG) emissions. Published estimates of forest biomass supply as harvest residues are reported and discussed. The range of estimates listed here indicates that this source of energy is important but that it is still a fraction of our energy demands. The potential of using this biomass to reduce our GHG emissions is strongly dependent, among other factors, on the technological pathways that are used, with direct heat production and combined heat and power (CHP) ranking amongst the best options available. The relative scarcity of the resource behooves us to use it efficiently.

scholarly journals The potential of forest biomass as an energy supply for Canada

2011 ◽  
Vol 87 (1) ◽  
pp. 71-76 ◽  
Author(s):  
David Paré ◽  
Pierre Bernier ◽  
Evelyne Thiffault ◽  
Brian D Titus
Keyword(s):  
Energy Source ◽  
Greenhouse Gas ◽  
Energy Supply ◽  
Energy Demand ◽  
Forest Biomass ◽  
Ghg Emissions ◽  
Combined Heat And Power ◽  
Greenhouse Gas Mitigation ◽  
Energy Demands ◽  
Relative Scarcity

There is a growing interest in using forest biomass as an energy source. The main objectives of this paper are to give somefigures and perspectives on Canadian forest biomass supply with respect to Canada’s energy demand and to examine thepotential of using this feedstock for reducing our greenhouse gas (GHG) emissions. Published estimates of forest biomasssupply as harvest residues are reported and discussed. The range of estimates listed here indicates that this source ofenergy is important but that it is still a fraction of our energy demands. The potential of using this biomass to reduce ourGHG emissions is strongly dependent, among other factors, on the technological pathways that are used, with direct heatproduction and combined heat and power (CHP) ranking amongst the best options available. The relative scarcity of theresource behooves us to use it efficiently. Key words: forest biomass, residue, greenhouse gas, mitigation, energy, sustainable forestry

scholarly journals Energy Demands Of The Existing Collective Buildings With Bearing Structure Of Large Precast Concrete Panels From Timisoara

2015 ◽  
Vol 5 (1) ◽  
pp. 75-82
Author(s):  
S. Pescari ◽  
V. Stoian ◽  
D. Tudor ◽  
Carmen Măduţa
Keyword(s):  
Energy Consumption ◽  
Energy Demand ◽  
Precast Concrete ◽  
Energy Performance ◽  
Efficient Solutions ◽  
Existing Buildings ◽  
Concrete Panels ◽  
Energy Demands ◽  
Actual Energy Consumption ◽  
Bearing Structure

Abstract One of the targets of EU Directives on the energy performance of buildings is to reduce the energy consumption of the existing buildings by finding efficient solutions for thermal rehabilitation. In order to find the adequate solutions, the first step is to establish the current state of the buildings and to determine their actual energy consumption. The current paper aims to present the energy demands of the existing buildings with bearing structure of large precast concrete panels in the city of Timisoara. Timisoara is one of the most important cities in the west side of Romania, being on the third place in terms of size and economic development. The Census of Population and Housing of 2011 states that Timisoara has about 127841 private dwellings and 60 percent of them are collective buildings. Energy demand values of the existing buildings with bearing structure of large precast concrete panels in Timisoara, in their current condition, are higher than the accepted values provided in the Romanian normative, C107. The difference between these two values can reach up to 300 percent.

scholarly journals An Overview of Household Energy Consumption and Carbon Dioxide Emissions in Iran

Processes ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 994
Author(s):  
Omeid Rahmani ◽  
Shahabaldin Rezania ◽  
Amin Beiranvand Pour ◽  
Shahram M. Aminpour ◽  
Mohammad Soltani ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Energy Consumption ◽  
Co2 Emissions ◽  
Carbon Dioxide Emissions ◽  
Energy Demand ◽  
Empirical Studies ◽  
Liquefied Petroleum Gas ◽  
Household Energy ◽  
Household Energy Consumption ◽  
Energy Efficiency Improvement

This review tends to obtain a deeper understanding of the methods used in household energy consumption and carbon dioxide (CO2) emissions in Iran. Issues relating to energy consumption and CO2 emissions are very complex. This complexity arises from the fact that energy demand and energy consumption in Iran are influenced by many factors, such as income, household size, age, and gender. In Iran, the relevant energy sources mostly include liquefied petroleum gas (LPG) and electricity, which are used for different sectors, such as transportation, industry, and residential. This overview looks at both the theories and empirical studies of household energy consumption and CO2 emissions in Iran. Since energy consumption typically results in air pollution, it is often used as an indicator of environmental degradation. Although Iran is recently faced to energy efficiency improvement from all sectors, household energy requirements have been significantly increased. In Iran, a prime motivator had been improving living standards. As Iran gradually turns into a consumer society, households have an enormous influence on the direct use of energy and related CO2 emissions as well as through indirect use, as embodied in goods and services. The findings of this study can help policymakers to focus on renewable energy projects in order to reduce energy consumption and mitigate CO2 emissions.

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