Advanced Materials Research Vols. 374-377

Abstract: In recent years, rural straw have been generated on the increase, accompanied by growing pollution, so utilization technology of rural straw was put forward, such as straw fermentation, straw manuring method, straw bio-reactor, straw fodder, straw-feeding edible fungus, producing protein, straw power generation, producing green building materials and for the weaving industry, etc, and do the analysis and comparison of its advantages and disadvantages of economic benefits, technology, provide guarantee to the application of utilization technology of rural straws.

Abstract: According to the actual situation in Ningbo, combined with both relevant information from both China's current building energy efficiency standards and that of foreign building's energy efficiency and environmental assessment methods, together established the Ningbo City residential building energy efficiency evaluation index system. Using the AHP application to evaluate, analyze and calculate to determine the weight of the evaluation index.

Abstract: In this paper, the experiments are made to research energy conservation effect of heat pipe air-conditioning system and the findings show that the heat pipe air-conditioning system is more energy efficient than conventional air-conditioning system; however, its energy saving rate will decrease with the increase of fresh air volume. Hence, in order to lower energy consumption, as long as the fresh air volume that guarantees the indoor air quality is selected, the lowest energy consumption that is required by air-conditioning system will be achieved.

Abstract: This paper first analyze the common air source heat pump defrosting control methods and their problems. Then, the impact of variable refrigerant flow technique on the air source heat pump frosting and defrosting is analyzed. Through experiment design, the influencing factors on inverter air source heat pump defrosting control methods will be studied.

Abstract: Energy saving has become a social focus nowadays. According to the statistics, the energy consumption on construction contributes to almost one-third of that on the whole society.At the same time, constructing consumption makes up 23% of the whole energy consumption on construction. As a result, it is of great necessity to find out how to control the consructing consumption.Based on the survey concerning the current situation of constructing consumption, the eassay puts up with the methods of classifying energy-consuming projects; analyses the source of construction consumption; builds a measuring model about energy consumtion in the construction phase using sub-project as research objects. In addition, referring to The unified national construction engineering foundation quota, we formulated energy consumption quota of these two sub-project respectively with an example of turkmen excavation and metal structure transportation. The research findings provide construcion enterprise with theoretical basis concerning saving energy and reducing carbon emission.

Abstract: Through the graft copolymerization of LLDPE and the AA-MMA prepolymer by reactive extrusion on the single-screw extruder, the LLPE-g-AA-MMA was prepared and used as compatibilizer for starch/PE blends, and then the compatibilization effect was investigated. The results exhibited that the addition of this compatibilizer substantially improved the mechanical properties, especially the tensile strength. Scanning electron micrographs of the blend specimens also supported the above observations.

Abstract: The infinite rapport structure is continuous repetition of a unit to fill its own space based on certain rhythm arranged. It has long been widely used in decoration of Architecture. This article makes a brief introduction of Geometrical Theory of Crystal Structure, studies the types and features of infinite rapport structure with different Dimension periodicity, and presents some typical design cases in architecture.

Abstract: The green building is one important way to develop the energy conservation work. The green construction technology surmounts in the tradition building technology, paying great attention to energy conservation, low consumption and high efficient and environmental protection. The green construction technology is the sustainable construction method. This paper takes the medicine building in Nanjing Pukou Central hospital as an example to analyze the characteristics of the green construction techniques and study the application of the techniques in public buildings.

Abstract: The fluidized-bed heat exchanger is widely used in various industrial sectors with the high performance of its heat transfer, ability to adapt working conditions, anti-scaling properties and many other advantages. This paper takes a horizontal single-tube in fluidized-bed heat exchanger and the fluidized low-temperature smoke around the tube as the objects of study. Euler-Euler two-fluid model is taken in use. Heat transfer between gas-solid two-phase flows and water in single-tube is simulated. The temperature field and general heat transfer coefficient is analyzed by simulated graphics.

Abstract: The nonlinear constitutive relations of clay are investigated with different initial stress conditions. Two series of triaxial compression tests are performed, respectively after consolidation and isotropic consolidation. On the basis of the framework of ~ model, a uniform nonlinear constitutive model is proposed by fitting of the test data. With the average slope of the unloading-reloading curve selected as the unloading modulus, the unloading function is constructed as the loading-unloading criterion. Moreover, a comparison of the experimental stress-strain curves with the predicted results by the constitutive model is made. It is shown that the model prediction is reasonable, which can reflect the stress-strain behavior of the soil under the consolidation and isotropic consolidation conditions.