scholarly journals Model Establishment of Whole Life Cycle for Energy Efficiency of Rural Residential Buildings in Northern China

2012 ◽  
Vol 04 (04) ◽  
pp. 196-202
Author(s):  
Chenxia Suo ◽  
Yong Yang ◽  
Solvang Wei Deng
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Residential Buildings ◽  
Northern China ◽  
Whole Life Cycle

scholarly journals Institution of public welfare: investments within historic settlements and the life cycle of the urban environment

Vestnik MGSU ◽  
2021 ◽  
pp. 751-769
Author(s):  
Olga V. Bakhareva ◽  
Liliya I. Azhimova ◽  
Alberto Celani ◽  
Nicolai S. Bolshakov
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Housing Stock ◽  
Residential Buildings ◽  
State Intervention ◽  
Public Welfare ◽  
Housing Sector ◽  
Investment Projects ◽  
Adjacent Territory ◽  
The City

Introduction. The transformation of the economic space of the regions based on digitalization and the use of intelligent technologies in the housing sector gives rise to aesthetic technical problems. When implementing spontaneous investment projects to improve the energy efficiency of the old housing stock of cities, including historical and cultural monuments, as well as buildings that form historical buildings, technical and aesthetic consequences arise. The aim of the article is to study the implemented investment projects to improve the energy efficiency of residential buildings on the adjacent territory of the border of the historical settlement of regional significance in the city of Kazan. Materials and methods. Full-scale inspection, photographic recording of the results of implemented investment projects to improve the energy efficiency of multi-apartment residential buildings of the housing stock on the adjacent territory of the border of the historical settlement of the city of Kazan. Results. As a result, a classification was drawn up of the types of interventions of the operating company, which significantly change the historical facades, change the single architectural and historical appearance of the street ensemble and generate negative externalities. Taking into account the prospects for growth in demand in the market for improving the energy efficiency of buildings of old housing stock, in order to maximize public welfare, it is proposed to consider the mechanism of state intervention to protect the architectural and historical environment of the city as a patronized good on the basis of state policy to create favorable conditions for the introduction of innovations in the housing sector in the form of institute of public guardianship. Conclusions. The institute of public guardianship will allow to preserve the artistic architectural ensembles of the city throughout the life cycle, to fight against parasitic architecture, to obtain an economic effect: to ensure low energy consumption in residential buildings of the old housing stock of cities, an increase in the value of real estate and the profitability of investment projects for the restoration, reconstruction and reconstruction of buildings in the historical part cities.

scholarly journals Targeting Energy Efficiency through Air Conditioning Operational Modes for Residential Buildings in Tropical Climates, Assisted by Solar Energy and Thermal Energy Storage. Case Study Brazil

2021 ◽  
Vol 13 (22) ◽  
pp. 12831
Author(s):  
Alex Ximenes Naves ◽  
Laureano Jiménez Esteller ◽  
Assed Naked Haddad ◽  
Dieter Boer
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Energy Storage ◽  
Air Conditioning ◽  
Residential Buildings ◽  
Zero Energy ◽  
Net Zero Energy ◽  
Net Zero ◽  
Life Cycle Perspective ◽  
Operational Modes

Economy and parsimony in the consumption of energy resources are becoming a part of common sense in practically all countries, although the effective implementation of energy efficiency policies still has a long way to go. The energy demand for residential buildings is one of the most significant energy sinks. We focus our analysis on one of the most energy-consuming systems of residential buildings located in regions of tropical climate, which are cooling systems. We evaluate to which degree the integration of thermal energy storage (TES) and photovoltaic (PV) systems helps to approach an annual net zero energy building (NZEB) configuration, aiming to find a feasible solution in the direction of energy efficiency in buildings. To conduct the simulations, an Energy Efficiency Analysis Framework (EEAF) is proposed. A literature review unveiled a potential knowledge gap about the optimization of the ASHRAE operational modes (full storage load, load leveled, and demand limiting) for air conditioning/TES sets using PV connected to the grid. A hypothetical building was configured with detailed loads and occupation profiles to simulate different configurations of air conditioning associated with TES and a PV array. Using TRNSYS software, a set of scenarios was simulated, and their outputs are analyzed in a life cycle perspective using life cycle costing (LCC). The modeling and simulation of different scenarios allowed for identifying the most economic configurations from a life cycle perspective, within a safe range of operability considering the energy efficiency and consequently the sustainability aspects of the buildings. The EEAF also supports other profiles, such as those in which the occupancy of residential buildings during the day is increased due to significant changes in people’s habits, when working and studying in home office mode, for example. These changes in habits should bring a growing interest in the adoption of solar energy for real-time use in residential buildings. The results can be used as premises for the initial design or planning retrofits of buildings, aiming at the annual net zero energy balance.

scholarly journals State of Legislative and Normative Art in the Fields of the Environment, Health and Security of European Electrical and Electronic Equipment

2020 ◽  
Vol 22 (4-5) ◽  
pp. 293-300
Author(s):  
Hassanzadeh Merdad ◽  
Metz Renaud
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Technological Change ◽  
Developed Countries ◽  
Primary Energy ◽  
Electronic Equipment ◽  
Modern Life ◽  
Recent Developments ◽  
The Many ◽  
Whole Life Cycle

Electricity is becoming increasingly important in our modern life, particularly in developed countries and recent generations. This contemporary energy allows smart programming and more refined uses. As a result, there is a need for better energy efficiency of Electrical and Electronic Equipment (EEE). In this context, the design of EEE must meet statutory obligations in order to reduce their consumption of primary energy by considering equipment over their whole life cycle. European legislation (WEEE, RoHS, ErP, REACh) has played a major role in deep technological change and has placed the environment at the center of the sector's interests. This article presents some of the many recent developments in normative and legislative matters.

scholarly journals A Methodology for Energy Simulation of Risedential Buildings: A Case Study for Amman

2018 ◽  
Vol 1 (1) ◽  
pp. 772-781
Author(s):  
Ahmad Altarabsheh ◽  
Ibrahim Altarabsheh ◽  
Sara Altarabsheh ◽  
Nisreen Rababaa ◽  
Ayat Smadi ◽  
...  
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Residential Buildings ◽  
Green Building ◽  
Green Buildings ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Net Zero ◽  
Whole Life Cycle ◽  
Zero Energy Buildings

Green buildings have been gaining in popularity over the past few years in Jordan. This is attributed to environmental and financial reasons directly related to energy consumption and cost. Energy sector in Jordan faces two main challenges which are the fast growing of energy demand and the scarcity of resources to fulfill this demand. Green buildings can save energy by designing them as near Zero Energy Buildings, where they produce amount of energy almost equal the amount of energy they consume. In special cases green buildings can be designed as Net zero energy buildings, where they produce as much energy as they consume. Jordan government encourage people to adopt net zero green buildings by issuing the Renewable Energy and Energy Efficiency Law No. 13 of 2012, that allows selling excessive electricity to electricity companies. Despite these benefits of green buildings, they are not yet the norm in the building sector in Jordan. This can be attributed to the high construction cost of green building compared to traditional one. However, this may not be true if the whole life cycle cost of the building is considered, in which the cost not only include design and construction but also operation and maintenance as well. This paper aims to provide real life cycle cost analysis for a typical residential building in Jordan, and to search different effective building strategies and design scenarios that will lead to a successful near Zero Energy Building. The search will apply main green building strategies recommended for Jordan climatic zone. The outcome of this study is a list of best economically feasible design solutions and system selections that result in near Zero Energy Building in Jordan for residential buildings.

scholarly journals A LIFE CYCLE ENERGY COMPARISON OF THREE WORLD EXPO BUILDINGS

2011 ◽  
Vol 6 (3) ◽  
pp. 151-167 ◽  
Author(s):  
Shanshan Shen ◽  
Brenda Vale ◽  
Robert Vale
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Energy Demand ◽  
Energy Use ◽  
Embodied Energy ◽  
Environmental Damage ◽  
Building Performance ◽  
Energy Flows ◽  
World Expo ◽  
Whole Life Cycle

Over the last hundred years the booming exhibition industry has promoted development, which in turn has led to environmental damage. The construction of exhibition buildings has been part of this phenomenon. At first sight improvement in energy efficiency techniques would seem to offset the increased energy demand from both exhibitions and exhibition buildings. However, whether energy efficiency technologies truly help to improve building performance to the point where a building is ‘environmentally friendly’ throughout its whole life-cycle is uncertain. This research is part of investigating whether energy efficiency technologies are really the easiest means to lower costs and energy requirements when the whole useful life of an exhibition building is considered. This article investigates the energy use of three case study buildings based on their operating and embodied energy flows. The results suggest that modern technologies for making exhibition buildings more sustainable may not be as effective as the simpler strategies used over 100 years ago. This suggests a different approach may be needed for sustainable development in the twenty first century.

scholarly journals A Life Cycle Cost Analysis of Structural Insulated Panels for Residential Buildings in a Hot and Arid Climate

Buildings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 255
Author(s):  
Muataz Dhaif ◽  
André Stephan
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Life Cycle Cost ◽  
Energy Demand ◽  
Energy Use ◽  
Residential Buildings ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Structural Insulated Panels ◽  
Operational Energy

In hot and humid climatic conditions, cooling tends to dominate building thermal energy use. Cooling loads can be reduced through the adoption of efficient building envelope materials, such as Structural Insulated Panels (SIPs). This study quantifies the life cycle cost and operational energy of a representative case-study house in Bahrain using SIPs and hollow concrete blocks (HCBs) for the envelope over a period of 50 years. Operational energy is calculated using a dynamic energy simulation tool, operational costs are calculated based on the energy demand and local tariff rates, and construction costs are estimated using market prices and quotations. The life cycle cost is quantified using the Net Present Cost technique. Results show that SIPs yield a 20.6% reduction in cooling energy use compared to HCBs. For SIP costs of 12 and 17 USD/m², the SIP house was cheaper throughout, or had a higher capital cost than the HCB house (breaking even in year 33), respectively. We propose policy recommendations with respect to material pricing, electricity tariffs, and energy efficiency, to improve the operational energy efficiency of houses in Bahrain and similar countries along the Arabian Peninsula.

scholarly journals Reconstruction and Modernization of Buildings Commissioned in the Second Half of the Twentieth Century

2020 ◽  
Vol 6 (5) ◽  
pp. 295-300
Author(s):  
V. Karanova ◽  
A. Sebeleva
Keyword(s):  
Twentieth Century ◽  
Energy Efficiency ◽  
Life Cycle ◽  
Housing Stock ◽  
Residential Buildings ◽  
Engineering Equipment ◽  
Modern Engineering ◽  
Wear And Tear ◽  
High Level

Currently, in Russian cities, a significant part of the housing stock in the areas of existing development has a high level of physical and moral wear and tear. Reconstruction of residential buildings will not only extend the life cycle, but also significantly improve the quality of housing, equip homes with modern engineering equipment, improve the architectural expressiveness of buildings and increase their energy efficiency.

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