Building Energy-saving Technology Research Articles

Application of Green Energy-Saving Technologies in Green Buildings in Real Estate Construction

Energy saving and low-carbon environmental protection are not only simple policy requirements but also bring impetus to the development of green buildings. The real estate construction business has become concerned. The construction process not only consumes huge capabilities and resources, but also causes varying degrees of damage to environmental products. Therefore, the comprehensive application of green building energy-saving technology in real estate development does not cater to the needs and preferences of current consumers, but is based on major challenges in the construction of national ecological civilization and future industry trends. This article mainly starts with the basic form and function of energy-saving technology in green buildings and discusses the effective application of building ground construction. This text analyzes the green building energy-saving technology and its current application status. Some problems exist: the building materials are not up to standard, and the process is not kept in mind. Some green energy-saving technologies have been applied in real estate construction: increasing the green energy-saving material markets and the supervision of material procurement, improving workers' ability to apply green and energy-saving technologies, correcting the attitude towards green building energy-saving technology, coordinating design and planning in real estate construction, determining the application criteria of green technology, and adhering to the principle of on-site and improve the energy-saving effect.

Performance analysis of new energy-saving and environment-friendly materials for building decoration based on the whole life cycle

As people put forward higher demand for the effect and quality of building interior decoration, the attention to building energy-saving materials has become higher and higher. In recent years, there have been many researches on green building energy-saving technology, green building evaluation and other aspects, but there are relatively few researches on applying the concept of full life cycle cost to the performance analysis of new materials for building energy conservation and environmental protection. Considering the economic performance of buildings will help to save resources in the construction industry and reduce energy consumption. The so-called full life cycle optimization of energy-saving design of green buildings is to take the concept of full life cycle optimization as the most reference, fully coordinate all elements in the portfolio project, and ensure that the full life cycle cost of the building can be greatly reduced. To realize the energy-saving optimization of green buildings, it is necessary to ensure that it runs through the whole life cycle of the building, fully combine the life cycle cost with the building function, and systematically do the optimization work. The performance analysis model of building decoration energy-saving and environmental protection new materials based on the whole life cycle proposed in this paper can be used to analyse the various properties of various new materials. The experimental results show that the maximum error of the test results is 9.6%, the minimum error is 1.3%, and the average error is only 6.43%. This shows that the model built in this paper is reliable, and the calculated results are in good agreement with the experimental results, which can be used to analyse the performance of new building decoration energy-saving and environmental protection materials. The ideas and methods of solving the model established in this paper have important guiding significance, and can be used as a powerful reference tool for studying other solving methods.

Discussion on the Development Direction and Energy-saving Measures of Building Energy-saving Technology

Discussion on the Development Direction and Energy-saving Measures of Building Energy-saving Technology

Economic Benefit Evaluation System of Green Building Energy Saving Building Technology Based on Entropy Weight Method

The development of the construction industry has brought great convenience to people’s lives, but the problems of resource shortages and energy consumption are becoming more and more serious. In order to solve the problem of resource shortages and energy consumption, this paper puts forward an evaluation system of technical and economic benefits of green building energy conservation based on the analytic hierarchy process and entropy weight method. In view of the correlation between building technology and economic benefits, this paper puts forward the economic benefit evaluation system of green building energy-saving technology combined with analytic hierarchy process and entropy weight methods, determines 6 first-class evaluation indexes and 20 s-class evaluation indexes, and takes the dynamic incremental investment payback period and incremental economic benefit ratio as the evaluation indexes, and finally obtains the economic benefit score and star value of green building. Combined with the actual situation of a middle school project, the incremental economic benefits of the four green technologies in energy conservation and resource utilization indicators are 44,256.75 yuan, 1,015,924.2 yuan, 255,490 yuan and 32,871.57 yuan, respectively. The total incremental economic effect and unit incremental effect of the six evaluation indicators are 1,472,113.3 yuan and 1501.99 yuan/m2 respectively. The economic effect of energy-saving and renewable resource utilization technology is the largest. The total score of the project is 0.404902 and it has three stars. Compared with traditional building technology, the application of green building technology and related facilities and equipment proposed in this paper can greatly reduce the consumption of building resources, so as to achieve the purpose of energy conservation and emissions reduction. This method combines objective evaluation with subjective evaluation, complements fair objective evaluation and expert evaluation, makes the best use of all basic information, and ensures the scientific effectiveness of the comprehensive evaluation model.

Application of BIM technology in energy-saving design of green building

Nowadays, the energy consumption of the building industry accounts for a large proportion of the total energy consumption, in order to achieve sustainable development, energy conservation, energy-saving concept of green buildings emerged. Green building energy-saving is from the beginning of the design to construction and then to the operation of the whole life cycle, the use of sustainable development concept of green building energy-saving technology, so that it becomes a land-saving, water-saving, material-saving, energy-saving, to provide people with a healthy, applicable and efficient use of space, and natural harmony and symbiosis of the building. In the Information Age today, it is inevitable to use computer to assist people to work efficiently, and BIM (building information model) technology is a kind of 3D information as a carrier to assist the architectural industry design, construction, operation of technical means.

Impact of shading louvers on wind-driven single-sided ventilation in a multi-storey building

As a passive building energy-saving technology, shading systems are usually used to reduce the solar radiation into the unit and reduce the energy consumption of air conditioning system. For multi-storey buildings, shading devices can not only change the indoor thermal environment, but also change the indoor wind environment and air quality because their impact on airflow patterns of natural ventilation. In this paper, the numerical simulation method was used to investigate external shading louvers on the single-sided ventilation performance and indoor air quality of units at different positions in a multi-storey building. Three approaching airflow directions and three rotation angles of louvers were considered and analysed. The results show that the evaluation of ventilation performance of shading louvers in multi-storey buildings is important for shaded buildings, which provide a new perspective for the geometry design of shading louvers and ventilation design of buildings.

The Application of Green Energy-Saving Technology in Building Design—Take Zhejiang Water Control Museum architectural design as an example

The fundamental purpose of green building design is to protect the environment, reduce pollution and save energy. Among them, energy-saving design is the most concerned one of green building. In this paper, the architectural design of Zhejiang Water Control Museum is selected as a case study, and the optimization design of energy conservation is carried out in the aspects of building orientation design, natural wind application, roof energy conservation design, renewable energy utilization and water resource utilization. This paper comprehensively monitors the energy consumption of the whole building by combining with the building intelligent management system, and dynamically displays the current energy saving effect, emission reduction sewage and sunshade effect. We hope to establish demonstration green buildings through this project research and strengthen the application and promotion of green building energy-saving technology.

In-Situ Thermomechanical Response Test of an Energy Pile Under Temperature Loading

The energy pile is a building energy-saving technology that uses shallow geothermal energy. It has the advantages of higher heat-transfer efficiency and lower land requirements than a traditional ground source heat pump system. The thermomechanical response characteristics of an energy pile under cooling and heating conditions were studied. An in-situ test of the cast-in-place energy pile was used to carry out the cooling, recovery, and heating stages. Based on analysis of the stress–strain distribution characteristics and the variation law of shaft friction under the conditions of temperature load and pile restraint, the results showed that the strain distribution of the cross section at a given depth in the pile was uniform and that there was no obvious eccentric stress in the vertical pile loading. The thermally induced axial stress had a linear relationship with temperature change, and the soil around the pile and the constraint conditions at the top or toe of the pile have an impact on the location of the maximum thermally induced load. According to calculations at a ± 10 °C temperature difference, the maximum stress can reach 1.79 MPa during cooling and 1.46 MPa during heating. The variation of unit temperature in each depth range causes shaft friction to become more uniform, and shaft friction increases almost linearly with temperature.

Variations of Stratification and Cooling Energy Performance According to Diffuser Condition in UFAD System

AbstractThe underfloor air distribution (UFAD) system, which is a building energy-saving technology, is an air-conditioning system that enables maintenance of the indoor temperature with a relative...

A System to Pre-Evaluate the Suitability of Energy-Saving Technology for Green Buildings

Rating systems for green buildings often give assessments from the perspective of the overall performance of a single building or architecture complex but rarely target specific green building technologies. As some of the rating systems are scored according to whether the technologies are used or not, some developers tend to pile up energy-saving technologies blindly just for the sake of certifications without considering their suitability for the application. Such behavior may lead to the failure of achieving the energy goals for green buildings. To solve this problem, a system that pre-evaluates the suitability of green building energy-saving technologies is devised based on modified TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution) method, SA (simulated annealing) algorithm and unascertained theory-based data analysis method. By setting indices from technology performance, economy, human satisfaction aspects and by using the building prior information and measured database of technology usage, this system can make a quantifiable and multi-dimensional grading assessment for the target green building energy-saving technologies in the design stage. The system aims at helping the designer choose technologies in the design phase that best enhance the performance of the finished green building. It also helps prevent the sub-optimal performance of unsuitable technologies caused by the “pile up” behavior mentioned earlier. To verify this evaluation system, two building designs which use energy-recovery technology are evaluated, and the predicted performance for both designs matched the actual operation of the technology in the buildings themselves well.

Evaluation of Green Building Energy-Saving Technology Based on Entropy Weight Method

In this paper, evaluation index system of green building energy-saving technology was established on the basis of comprehensive analysis of the factors affecting green building energy-saving technology. This evaluation index system was divided into two levels. Thermal performance of maintenance structure, energy efficiency of building equipment, design management, operation management and indoor comfort and health were one-level evaluation index, and there are eighteen two-level evaluation indexes. Entropy weight method was introduced to determine the weight of evaluation index. Fuzzy synthetic evaluation method was applied to synthetic evaluation. On this basis, a model based on entropy weight method and fuzzy synthetic evaluation method was proposed to evaluate the green building energy-saving technology. An example was given to verify the validity and feasibility of the model. Results show that the model can used to evaluate the green building energy-saving technology, and offers reference on evaluation of green building energy-saving.

Application of SiO 2 Aerogel Material in Building Energy Saving Technology

SiO2 aerogel is a three-dimensional network structure solid materials, with the characteristics of low density, low thermal conductivity, high light transmittance, high porosity, high specific surface area and so on, but also has the excellent performance of fireproof and waterproof. It is a rare light, environmental protection, multifunctional material, which has great application prospects in the broad field of building thermal insulation. With the objective of building energy saving, this paper briefly describes the research on SiO2 aerogels, discusses the possibility of large-scale production from preparation of diverse raw materials, raw materials and drying cost reduction and so on, focuses on the application progress in building insulation of SiO2 aerogel glass and SiO2 aerogel thermal insulation coatings; then, from the point of view of the excellent characteristics, this paper presents the application of a SiO2 aerogel material in building energy saving technology, and from the SiO2 aerogel materials in thermal insulation, waterproof, fireproof and simplifying the construction process and other advantages, constructs the application system that SiO2 aerogel materials replace the current thermal insulation material in building energy saving. At last, it makes a conclusion and expectation of the SiO2 aerogel materials application prospect in building thermal insulation.

Applied Research on Energy-Saving Technology of Buildings in Hot Summer and Cold Winter Regions of China

Taking regions of hot summer and cold winter as the research object, this paper researched the characteristics of climatic resources and economic condition of the regions, summarized the active and passive adaptability of building energy-saving technology under local climate condition and economic condition, thus it provided reference and guidance for the future development of building energy-saving technology in hot summer and cold winter regions.

The Main Obstacles to Popularizing the Building Life Cycle Cost Method in China and the Solving Strategies

Life Cycle Cost (LCC) method can not only help users make economic decisions on a construction project, but also have a positive effect on popularizing building energy-saving technologies and reducing building energy consumption. However, LCC has not received due attention in China. This paper analyzes the main obstacles to popularizing LCC in China and explores the solving strategies of promoting LCC in China by means of the functional process theoretical model.

Application of Building Energy-Saving Technology - Student Accommodation in Shandong Jianzhu University

Shandong Jianzhu University student apartments by the use of ecological building envelope insulation, solar heating, building ventilation, photovoltaic, solar hot water systems, building technology made summarization of the future for the construction of ecological building cold and cold regions of the country to provide a good idea.

Design Strategy Based on Green Building - Take the “City Plaza” Project as an Example

The project of City Plaza and its office buildings all regard the green three-star as the overall design goal, which has been identified by the China's Green Three-star Design Evaluation. This project could make rational use of the natural conditions and ecological energy-saving technology to the maximum extent by the comprehensive planning and architectural monomer design, and adopt the low-cost and low-input way such as the green building materials to balance and protect the surrounding ecosystem. Therefore, it could improve the energy-saving efficiency of project and explore a new organic mode to apply modern green building energy-saving technologies in the process of tradition respect and protection.

Building Energy-Saving Technology and its Application Based on Low Carbon Concept

With the continuous development of social economy, of residents’living consumption structure upgrade, building energy consumption quantity huge, the increasing focus on research and application of building energy-saving technology. Based on low carbon concept, this paper expounds the necessity of building energy-saving, introducing building envelopes structure energy-saving technology, HVAC systems energy saving technology and new energy utilization technology, analyses the application of building energy-saving about the "Bird's Nest" and the "Water Cube", draw the urgency and the reality of building energy saving technology promotion and application.

Building Energy Saving Technologies in China：An Overview

Faced the reality of high energy consumption in China’s building sector, it is imperative to research and develop new technologies in China’s building sector vigorously. Undoubtedly, it is mature in building energy saving technology in China. Numbers of appropriate technologies have been developed and applied in China, especially in the utilization of renewable energy. Therefore, this paper summarized four main popular building energy saving technologies, i.e. energy saving technologies of building envelope, energy saving technologies of building services and equipment, utilization of renewable energy and building energy management.

The Study on Building Energy-Saving Technology Evaluation Index System in Towns and Villages Housing

It is not only a complicate system of energy-saving construction in towns and villages housing，but also a long and arduous task. With the process of urbanization was further development and the aim of building new socialist countryside was proposed， the development of towns and villages housing construction was very rapid. It is important to ensure that the appropriate energy-saving was chose by according to the actual needs of towns and villages housing and use the suitable assessment system to evaluate energy-saving technologies to improve the overall lever of towns and villages housing. Combine with the actual situation about the using of energy-saving technology in towns and villages housing in China, from the advanced, economy and feasible of technology and the sustainability of project to establish the energy efficiency technology assessment system on towns and villages housing, and used AHP to determine weights, in order to provide reference for better promote the development of towns and villages housing.

The Study of Information Asymmetry on Construction Market in Towns and Villages Energy-Saving Housing

Based on the view of construction market in towns and villages energy-saving housing in China, combining the theory of information asymmetry, this paper will analyze the reasons of information asymmetry existing in construction market of towns and villages energy-saving housing and investigate the problems of information asymmetry and adverse selection between the real estate developers and residents. Referring to the advanced experience from abroad, it can be argued that establishing an appropriate building energy-saving technology evaluation index system is an effective way to solve market failure in towns and villages housing market.