Energy-saving Construction Research Articles

Effect Bonding Strength Steel Reinforcement with Epoxy Coating on the Character Destruction of Autoclaved Aerated Concrete Beams in Bending

Many of the complex reinforced Autoclaved Aerated Concrete characteristics under shear and flexure are yet to be identified to employ this material advantageously and economically, as it has many advantages of low weight, fire resistance, acoustic and thermal insulation. It is observed in the article that under two-points loading system, diagonal cracks are usually the first cracks to be observed in the deep beam clear span. The diagonal cracks first are developed in relatively deep beams and the flexural cracks are first developed in shallower beam. The principal mode of failure in the deep beams having adequate reinforcement is diagonal tension cracking. The shear failure is a common type for all beams. This indicates a weak the bond strength between lightweight concrete and reinforcing steel. There are many factors affecting the bond strength between the lightweight concrete and reinforcing steel, where the compressive strength plays an important role in bond strength, and the bond strength is increased by increasing the compressive strength. The AAC beams have the potential to be an excellently energy-saving construction material and is believed to emerge as an alternative to traditional reinforced concrete beam in the near future. This is proved by the experimental analysis.

Determinants of the Energy Saving Construction Quality in the Green Design

Abstract Crucial element of the contemporary construction development trend is compatibility of the building design with client and architecture trends and sustainability strategy. The environmental certification systems for buildings such as LEED, BREEAM and WELL apply a lot of attention to providing users with a healthy housing environment. The criteria of these systems include many practical recommendations that buildings should meet on design, construction and use stage. These requirements can be a signpost, even for buildings and offices that do not aspire to obtain a certificate. The aim of the paper is to analyze and identify determinants of the energy-saving construction quality in the context of the green design.

Modeling optimal solutions with the use of heat technologies based on graph theory

The article describes the types of energy efficient technologies focused on energy saving. The presented technologies have significantly improved performance, while the disadvantage is high cost, which is the main factor preventing the introduction of energy saving technologies in construction. In this regard, solve the problem of optimizing the choice of the possible heat saving technologies of construction enterprises based on their financial and production capabilities based on graph theory. As a result, identify the technology yielding the greatest effect at minimum cost. The decision process is formalized as a graphical structure. In this case, the problem of finding the optimal solutions solved in graph theory. Graphical modeling of the structure of relations allows to visualize and organize variants of the consistent use of energy-saving technologies construction companies. On the basis of the construction of adjacency matrices organization of construction production is planned based on the use of energy-saving technologies determines the best combination of the ability of the construction company and the effectiveness to the execution of the technology.

Application of Energy-saving Construction Technology in Building and Civil Engineering

Under the background of society stepping into information age, machinery equipment manufacturing industry has undergone a dramatic change, traditional simple development model of mechanical structure has failed to adapted to the demands in the new age, old organism of organization and workflow has been short of market competitiveness, under the development with new technology and automation technology as represented, automation information technology comes to be popular in the mechanical design and manufacturing industry,  meeting  personalized,realtime, auto- matic  and diverse market demands of mechanical design and manufacturing, thus better improving production efficiency of mechanical design and manufacturing, cutting mechanical design and  manufacturing  costs, comprehensively  strengthening core ompetence of mechanical design and manufacturing products.

A Decomposition Analysis of Embodied Energy Consumption in China’s Construction Industry

With the fast-paced urbanization process, there will be a rapid development of China’s construction industry. However, it could also drive for considerable energy consumption, resulting in immense pressure on the environment. Based on non-competitive (import) input–output tables, we employed the SRIO (Single Region Input–Output) model to analyze energy use embodied in China’s construction industry from 1995 to 2009 and made projections for 2020. Our results show that about 4.84 billion tons of coal equivalent energy would be consumed by China’s construction industry in 2020. It implies that urbanization not only promotes the flow of embodied energy, but also provides development opportunities for a green and energy-saving construction industry.

Campus Building Energy Consumption Quota for Case Analysis

Along with our country energy-saving construction work steadily, energy-saving standards work has also attracted more and more attention. In order to provide the basis for making policy of building energy conservation, many departments are doing a lot of research for all types of building energy saving standards. Architecture of the college as a special group, their energy has its own particularity. This passage has counted the building energy consumption data of representative of several universities of Jiangsu province, and established the standard building model through BECS energy-saving design software, finally, used SPSS statistical software for data and model analysis, so as to make the relevant quota. The result shows that, Jiangsu province university office building statistical quota is about 32.876 kWh/(m2·a), technical norm is about 36.29 kWh/(m2·a). At the same time, because of different calculating methods, building energy consumption statistic quota and technical norm exist certain disparity, therefore, the quota level 's formulation also needs the combination of scientific calculation methods, and considering the statistical quota and technical norm of two indexes.

Research on the Application of Building Information Model Technology in the Design of Urban Residential Buildings in Cold Region

The design of urban residential buildings in cold region is different from that in low latitude region, or the design of general public buildings. The precise grasp of dwelling unit type and appearance style, effective control of building heating and thermal insulation efficiency and the implementation of the sustainable concept of low cost construction and environmental protection are dependent on the early scientific and rational design. And the building information model technology just acts as a platform for the optimization of the design. The study is based on the engineering projects; the planning, the design of building facade, collision detection optimization and the full participation of construction cost control in building information model provide a new train of thoughts and research reference for the residential design in cold region, in the context of the digital age, and to a certain extent, the study looks forward to the future urban residential design and construction industrialization prospect in the cold region . Building information modeling technology improves the design efficiency and quality with its precise data processing and analysis, avoids the defects in design and the material waste of construction and environment pollution, significantly enhancing the pre-processing level of construction structure parts, which is in line with the energy-saving environmental protection and rural environmental construction philosophy advocated by the state, and the green building strategies of sustainable development.

Problems of energy-efficient construction in Russia

The article considers the world practice in the field of energy-saving construction technologies as well as the present-day situation in Russia. Also the authors consider problems associated with the growth of energy consumption and electricity generation, raise questions concerning the environmental problems of energy production. The recommendations on the reduction of energy consumption are given.

Process methods of pore structure and properties control of heat insulation ceramic construction materials

The objects of study were ceramic materials obtained with the help of gas-forming additives. The work models various types of pore ceramic structure on the basis of non-sinterable clay and different pore-forming agents. Both inorganic (marl, dolomite), organic (sawdust, turf) and organic mineral (coal flotation tailings, ash slag) pore-forming additives were used with specified particle size. Such structural characteristics of ceramic materials were established as preferable pore size, all types of porosity, volume content of solid phase and structure anisotropy factor characterizing its uniformity degree. Structural parameters were studied in connection with type of pore-forming agent and properties of model samples which ensure better operational properties of materials. The highest mechanical strength was found in combined-type porous structures with tubular, globular and spherical pores in various combinations that were formed under usage of organic and organic mineral pore-forming agents. We observed a trend in materials to increase their strength with growth of closed porosity. Structure uniformity is found to improve with reduced pore-forming agent particle size, which makes the materials more strong and frost-resistant. Process parameters (type, quantity and particle size) of pore-forming agent were established enabling targeted formation of porous ceramics structure in order to improve the properties of heat insulation ceramic construction materials. The results represent the scientific interest for professionals working in the field of building materials, particularly in the field of production technologies of heat effective ceramics for energy-saving construction.

Study of Energy-Efficient Building Issues in Architectural Decoration

<p>Creating green, energy-saving and environmentally friendly building products is the main theme of construction industry in order to achieve sustainable development. The study starts with innovations in energy-saving designs and energy-saving construction of a building’s interior decoration and other important aspects that use energy effectively, improve energy efficiency, as well as providing people with healthy, comfortable, natural and harmonious living and working environment, while realizing sustainable development of construction.</p>

Study of Energy-Efficient Building Issues in Architectural Decoration

<p>Creating green, energy-saving and environmentally friendly building products is the main theme of construction industry in order to achieve sustainable development. The study starts with innovations in energy-saving designs and energy-saving construction of a building’s interior decoration and other important aspects that use energy effectively, improve energy efficiency, as well as providing people with healthy, comfortable, natural and harmonious living and working environment, while realizing sustainable development of construction.</p>

Technical and economical assessment of energy-saving roof and wall construction in Thailand

This research assessed the economic impact and construction costs of buildings with solar chimneys in Thailand, called bioclimatic houses. A solar chimney uses a combination of air gaps between walls and roof, and effective ventilation to lower the indoor temperature and reduce the need for air conditioning. The study looked at small, medium, and large size houses and studied construction techniques, the materials used, and the time needed to build a residential structure. It also polled owners of bioclimatic houses about their satisfaction. The techniques employed in building bioclimatic houses take slightly longer and cost slightly more than those used in standard construction. However, the study found that bioclimatic houses use approximately 10–20% less electricity for air conditioning require less maintenance and have a payback period of 6–13 years, depending on the size. The lifespan of insulation material used in standard houses is about 20–25 years, while the lifespan of a solar chimney is about 40–50 years. The solar chimney concept can also be applied to standard houses with minimal renovation. The study found that this type of house was suitable for use in Thailand, and with increased consumer awareness, had a high probability for adoption.

Application of PLC Technology in Electrical Energy Protection System Design

With the rapid economic development of the times, modern electrical energy to protect the system design process, by means of the application of PLC technology, not only to ensure that the motor is running with a certain degree of security and reliability, but also to achieve the motor energy conservation and protection, thus promoting the development of China's energy-saving industrial construction.

Research on the Application of Energy Saving Technology in Building Operations

Under the framework of "Kyoto Protocol", CDM mechanisms and the formation of carbon financial markets supply a platform for developing countries to participate in the global greenhouse gas emission reduction activities. PCDM projects will be the inevitable choice in the area of energy-saving construction. This paper analyzes the CDM mechanism and the applied limitations of CDM in the field of energy-saving residential building and then it points out the potential of PCDM in Chinese energy-saving construction and finally puts forward suggestions for promoting the residential building PCDM projects

Simulation on the Energy-Saving Design Model in Construction for Considering the Multi-Level Features

For the drawbacks of construction design and regulation used in our country for long time, like construction rules are far behind, and the energy consumption of the construction process is higher, the energy-saving construction design model based on multi-level features is proposed. Through calculating the energy consumption with hours as units, and quantitative judgment is made, the appropriate formulas are utilized reasonably depending on the circumstances to compute energy consumption of construction, so as to obtain the energy-saving design under the corresponding conditions. This model can be adopted to calculate rational energy consumption, and circumvent, so that ultimately achieving energy saving. At the same time, the initial conditions of construction and matters requiring attention during the construction phase are integrated and discussed, as well as issues such as the weights of design value, as a whole to consider, to minimize the error between the design and construction.

ENERGY-SAVING TECHNOLOGIES – FUTURE OF HOUSING CONSTRUCTION

The article covers development of energy performance and energy saving in Russia, relevant issues of development of energy-saving construction, as well as pilot projects of construction of energy-saving (“smart”) houses implemented with participation of State Corporation — Housing and Utility Reform Foundation. A separate emphasis is made on perspectives of development of “green” (environmentally friendly) construction, the main task of which is reduction of total influence of constriction site on environment and human health, what is reached on account of efficient consumption of energy, water and other resources, as well as reduction of waste and emissions.

Analysis on Voltage and Reactive Power in Civil Lighting

Street lamp has become the essential functional unit in society for its widely use , Street lamp power energy saving has become a very worth studying problem high demand. Aiming at such a demand, this paper proposed a kind of optimizational energy saving streetlight that based on the voltage and reactive power, this article put forward such a research mainly aims at the demand of Jinan street lamp management. The research improved the grid power factor, reduced the network pressure drop and reduces the energy consumption of street lamp. It upload the master station through GPRS network real-timely, And accept command such as mode conversion, parameter setting, time checking and capacitor switching. It implements the voltage optimization function, remote monitoring and control functions on the basis of ensuring road illumination and uniformity, Which realized street light energy-saving and reduced the loss of lines and transformers at the same time. And it protect lighting lamps effectively. Examples show that the study further improved the management level of Jinan street lamp, it realized the double harvest of electricity environment optimization and electrical energy saving, Which made a great contribution to energy-saving society construction.

The Energy-Saving Design and Construction Study on Exterior Windows in the Building

Doors and windows,especially the exterior windows, are the weak parts to preserve or insulate heat in the exterior protected construction of a building, and the main contents in energy-saving architectural designs. The energy-saving design of exterior windows should start from such aspects as size, shape, frame form, glass type, gap sealing, etc. The size of the exterior window holes should be determined according to the window-wall area ratio specified in the relevant rules. It is priority to choose side-hung window in energy-saving design, to choose the low heat transferring window frame, to take measures to break the “thermal bridge”, and to select the energy-saving glass such as decalescence glass, coated glass, hollow glass and vacuum glass. The gaps should be sealed tightly between wall and window frame, window frame and sash, glass and window sash to reduce the air permeable.

Study on Energy Saving of Local Building Material

According to the research of city residential building energy conservation planning, design and technology application, this paper considers the influence of climate and energy saving design, determine the corresponding from the city planning, shape, envelope, Using the project management method, studies on the application of design energy-saving construction theory in the high-rise residential buildings and application of building energy saving technology in the architecture. How to strengthen the building energy-saving project quality supervision, to ensure the construction quality and construction process in the use of the premise of indoor thermal environment quality, make the high-rise residential energy-saving to 65% residential building standards; Through the research, the research of can provide technology guidance and decision-making reference for the construction of energy-saving work more extensive development, progress. Application of energy saving technology implementation, architecture in the architecture and how to strengthen the building energy-saving project quality supervision, to ensure the construction quality and construction process in the use of room

Thinking of Comprehensive Energy-Saving System Construction for Urban Rail Transit

The High Energy Consumption of the Current Urban Rail Transit Industry, High Efficiency Energy Saving Measures must be Taken. this Paper Entity from the Traction Energy Consumption, Building Structure and Operating Equipment Aspects of the Current Situation, Described the Energy Saving Strategies. Aiming at the Present Problems Existing in Energy Saving Practice, this Article Puts Forward the Comprehensive Energy Saving System which Contains Optimization Design in Planning Period, Low Resource Consumption in Construction Period, Energy Saving Work in Operation Period. above all, Implement Energy Saving Practice at Every Concrete Work of Reaching.