Advanced Materials Research Vols. 374-377

Abstract: Latent heat energy storage is becoming more and more attractive for energy conservation of buildings. Phase change materials (PCMs) can be applied in building envelopes to conserve heat energy in building products. The technology of PCMs is efficient and economical due to the rising cost of fossil fuels and environmental concerns. In this paper, binary organic/inorganic nano-composite PCM by intercalation compound is prepared, preparation conditions are studied systematically; and structural analysis and characterization of performance are conducted. The results obtained show that a good potential for heating and cooling is in building through nano-composite PCM and overcomes weaknesses and deficiencies of pure PCMs. A simple modification of binary organic/inorganic nano-composite PCM is discussed firstly. Secondly, the various influencing factors of thermal storage capacity are discussed. The optimum experimental conditions for preparation of organic/inorganic nano-composite PCM are, 55%~60% for the content of organic substances, 5h for the preparation time, 70~80°C for the preparation tem. and 60~120 mesh for the best granularity of composite PCM.

Abstract: This paper demonstrates that β-CD which encloses industrialized paraffin, one of the phase change materials, is utilized to prevent the leak of the paraffin. The enthalpy of the phase change materials which are enclosed is studied by characterizing of DSC. The result shows that the enthalpy of paraffin which has been enclosed by β-CD is increased by 29%. The related research contents had not been reported in literature. This method, compared with the common encapsulation of paraffin by wall materials, like the urea formaldehyde resin, not only is a new exploration on the enclosure method and the increasing of the enthalpy of the phase change materials, but also meets the requirement of enviromental protection.

Abstract: Building automation is the inevitable product of information age and the modern society, and it is the perfect combination of modern high-tech and building. Making the equipments in the building running automatically in optimal state, building automation system can reduce energy consumption maximally while providing a comfortable environment conditions. This paper makes an energy saving analysis of each important component of building automation system, and establishes a typical office building model, simulating how building automatic system can influence building energy efficiency in four level cases. It hopes to provide some reference for the application of building automation system in building energy efficiency.

Abstract: Envelop is an important component of building. Well designing on envelop makes great sense to promoting climate adaptability for the building, improving building comfort and driving forward energy conservation. This paper starts with the design principle of adaption to climate, variability, economy, localization and integration, then carries on the elaboration to design strategies on wall, glass curtain wall, window sunshade, balcony and corridor, roof and other parts; lastly a typical office building model is established to simulate and analyze envelop performance.

Abstract: Different climate bring about different buildings, Climate has very close relation with architecture. Building climatic classification has important direction mean for architecture design, building energy efficiency and building energy simulation. Ago, China classified building climate using temperature, relative humidity, etc.. Degree, relative humidity and clearness index were regarded as classification factors. Meteorological data of 165 stations from 1970 to 2000 is used to reclassify building climate in China. Six types of building climates which respectively is Warm, Warm & humid, Weak solar radiation & humid, Cold & dry, Cold and Sever Cold & dry was obtained, character of every climate zone was summarized.

Abstract: This paper explains and demonstrates why uses’ needs are as important as green design principle and a good design should consider a lot on human’s feeling. It suggests that future green building will be based on principles that fundamentally address many of the issues that have become to light from this research. They will offer good working environments in which people are able to work to the best of their ability, and have the added bonus of low energy consumption.

Abstract: Development of low-carbon economy is an important approach to adjust industrial structure. With the gradual acceptance of low-carbon economic concept, borders of industries gradually become unclear and construction industry steps into the phase of combination. This paper gains the result that the profit of implementing low carbon technology is increasing function or decreasing function to the actual value and by adopting efficient low carbon technology in construction industry in two different fusing stages, and considering the market competition situation through the return condition of referral encouragement. It also gains the situation that the government provides referral encouragement or does not provide referral encouragement by analyzing the relationship between the profits and the average benefits of low carbon in the market, and finally proposes the fusing countermeasures of construction industry in the low carbon economy age. And it gave the accelerate in-depth development of modern construction industry.

Abstract: This paper is concerned with a new numerical method of two-dimensional flow. The governing system of differential equations is transformed into an equivalent system applied over a square-grid network in order to overcome the difficulties and inaccuracies associated with the determination of characteristics near the flow boundaries. The MacCormack two-step explicit scheme with second-order accuracy is used for the solution of the transformed system of equations. The present numerical model has been used to numerically compute flow in sharply curved channel.

Abstract: This paper through the analysis on status and barriers of carbon trade in China and factors for price, made a study on the game of carbon trade risks under non-market function. This paper used the reverse signal transduction model, analyzes the path selection of emissions measures under the government mandatory policy. And it established the two stages carbon trading competition model, which reveals the best effort level and the optimal referral reward (incentive problems) under the voluntary emissions of carbon trading. And then it established the characteristic carbon trade mode of China providing reference to the economic development of China’s future carbon emission trade market.

Abstract: In this article, we explore the relation between the continuation of the architectural context and the integration of the surrounding environment. First, we suggest that the local context should not be lost in the process of urbanization. Then we present Fujian San-fang Qi-xiang, Changting,Wufu Town as case analysis. Also we combine a number of success examples at home and abroad. We eventually come to the conclusion that the continuation of context should promote with the surrounding environment.