Advanced Materials Research Vols. 255-260

Abstract: The United Habitation in Marseilles is the master wok of Le Corbusier, the well-know architect. Over the fifty years of its existence, the researches concentrate on its light and shadows and color scheme of the facades, etc. However, the most important original intent of the designer is the optimization of the indoor thermal environment, especially the use of cross ventilation. As green building has drawn more and more attention nowadays, this article will focus on the indoor natural ventilation conditions of two standard cells of the Marseilles Unit, which are known as the ‘upper E’ apartment and the ‘lower E’ apartment, by using computational fluid dynamics (CFD) models. Compared with the data of Middle corridor type dwelling, verify the superiority of its architectural layout.

Abstract: This paper attempts to summarize the idea of tectonics in regional architecture creation, analyze its technical and artistic characteristics, and consider its significance and limitations. It also analyzes the usage methods of local building materials in terms of practicing regional tectonic design, by testing the idea.

Abstract: This article apply the CFX computational fluid software of ANSYS software company to casing tube heat exchanger of inside diameter of 10mm, 16mm, wall thickness of 1mm, pipe sections of the counter-flow 1000mm long, including concentric and eccentric placement of three kinds of state and other conditions in different conducted, draw a conclusion that the speed of the fluid and temperature distribution in the tube, and compared the case of three kinds of heat transfer coefficient.

Abstract: Based on the key problems of historical areas revitalization and the core theory of Space Syntax, this paper probes into the application of Space Syntax to quantify the space configuration in the conservation and regeneration of historical areas. According to the design process, an ideal framework which includes historical literature research, present situation analysis and optional scheme evaluation is put forward.

Abstract: In the study of cluster thermal environment, the projecting angle of wind against buildings exercises vital influence on the environment. This thesis, taking Xi’an region as a representative city, conducts a study of how different wind projecting angles influence the thermal environment by means of the simulator program of energy consumption. By sequentially alternating the included angle between the orientation of building cluster and wind direction, it sets up different arithmetic example models which can meet the requirements of various seasons. It also quantitatively expounds the impact of wind projecting angle on energy consumption of buildings with the annual minimal energy consumption of buildings as its basis. The research has worked out the following recommended plans about the orientation of cluster distribution in Xi’an region. The building is at its lowest level of energy consumption when its wind projecting angle is 30 degrees. Its energy consumption is relatively stable when its wind projecting angle is 45 degrees or when it rotates anti-clockwise within 15 degrees.

Abstract: Many factors are promoting the rapid development of green building in China, including the increasingly serious environmental problems, the constant improvement of people’s demands on architectural environment’s quality, the introduction and development of a variety of green building technologies, the successive implementation of accompanying “green building evaluation criteria” and other relevant policies and regulations. All is well known, green building’s design is the premise and necessary conditions of green building development, which is itself a concept of sustainable development, and it emphasizes the adaptation to local conditions, times and issues. The green buildings design includes four main factors: natural factor, technical factor, social factor and economic factor. China is a large developing country with a vast territory, huge population, and there is a tremendous difference in the geographical environment, natural resources, economic development, living standard and social conventions in different regions. So in our country where the green design has just the begun, the realization of green building must take into account the specific characteristics of the definite period of time and the particular region, and must seek the strategies of green building’s localization that are very well suited for self-development. Those strategies are as follows: the adaptation to local environment; the use of local technology; the choice of local materials; the heritage of local culture. In short, our development targets of green building are, focusing on tradition, keeping pace with the times, taking root in the local community and looking forward to the future.

Abstract: Doing research on suburb resettled residents whose houses are demolished by the means of practical reconnaissance on the spot, door-to-door interview and questionnaire survey, analyze their self-adaptive reconstruction and habitation demands, to summarize the revelation about the planning of demolishing and resettlement communities.

Abstract: The aspirating smoke detection (ASD) system has been widely used in large space buildings. It plays an important role on fire detection at its early stage. In this paper, the model of large space building was established for the simulation study on the response performance of the ASD system. The investigation on the effect of fire location, sampling hole space and pipe length on the responding time, was carried out. The results showed that the responding time of FIRE B (fire close to side wall) is much delayed than that of FIRE A (fire in centre); the increase of sampling hole space and pipe length leads to the delay of the responding time.

Abstract: The University Campus Planning for the new design, the new campus of a university in Hebei Province, for example, from the ecological structure of the planning, construction layout groups, park user-friendly transport, green garden design, low carbon design and culture type of construction planning to do with the design described. Exploration of the environment, carbon, garden-type new campuses.

Abstract: This study selected 21 representative public sites for the survey of indoor air quality in Tainan area, including hospital, school, fitness center, government office, library, theater, transport station, and supermarket. Indoor air quality was first assessed by direct detection apparatus, including CO₂, CO, HCHO, TVOCs, bacteria, fungi, PM₁₀, PM_2.5, O₃ and temperature. Based on the results of walk-through detection, the spatial distribution of indoor air contaminants was further measured in a 24 hour period by the EPA standard method. The detailed measurements illustrated HCHO, O₃, PM₁₀ and PM_2.5 concentrations are lower than the suggested threshold levels in all public sites. CO₂ concentrations at hospitals and school are all exceeding category 1 threshold of 600 ppm. Bacteria exceeding the suggested threshold of 500 CFU/m³ for category 1 and 1000 CFU/m³ for category 2 is popular at most public sites. One fitness center was found exceeding the TVOCs threshold of 3 ppm, and outdoor air can be a potential source. The high levels of CO₂ and bacteria were a common indoor air quality problem, and the regulated strategy of crowd control and air conditioning management was required for a healthy indoor environment.