Advanced Materials Research Vols. 953-954

Abstract: When oil field entered into the high water content period, liquid production capacity of oil wells had large fluctuation and poor regularity, which leaded to the error of human reading and bottom water density in the measurement process, the difficulty of measuring oil wells is gradually increasing. Therefore, the measurement of low producing well has aroused extensive attention. How to research and establish a suitable measuring device for low producing well, improve measurement accuracy and management level of intermittent oil wells has become a serious problem in oil production. Using automatic oil measuring system can improve the accuracy of measurement, which achieved the automatic measurement for the fluid and gas production and moisture content of oil wells.

Abstract: This paper introduces a kind of low-voltage dynamic reactive power compensation technology which is applied in intelligent industrial park. The system scheme, working principle, technical feature of the DCS-KB-2100 type low voltage power dynamic compensation device is recommended. According to the application result, the low voltage reactive power compensation technology has been greatly improved power quality, improve the power factor of the power grid. The advancement and stability of the low voltage reactive power dynamic compensation technology is verified. In the process of enterprise production, it gives full play to the role of energy saving and consumption reducing, points out the direction on the technological innovation of the industrial park electricity intellectualization, and provides a reliable technical support.

Abstract: Windows energy saving design of residential buildings has increasingly got the attention of people. Through a large number of surveys and analysis of residential buildings in Chongqing and consumers personal experience, the author finds problems and deficiency, and then proposes principles of residential buildings sun shading reconstruction in Chongqing city. Taking the high-rise residential building of one university in Chongqing as reconstruction sample, selecting a specific time period, the author recalculates sun shading coefficient with and without sun shading by using Ecotect software to do simulation analysis. Finally, the reasonable reconstruction design pattern is put forward through cases. Keywords: Buildings Sun Shading, Sun Shading Reconstruction, Energy Saving

Abstract: In order to improve design method and optimize control strategy used in non-unidirectional airflow cleanroom, the influence of airflow organization and supply air volume on characterization of mini-environments in a non-unidirectional cleanroom was studied in the paper. A series of investigations were conducted on a cleanroom experimental platform with different airflow organization modes and supply air volume variation by electronic frequency conversion (35 to50Hz, 5Hz interval) on air-supply fan unit. The characterization such as cleanliness , pressure difference between clean zone and outdoor were measured during these experiments. It is shown that radiation air-supply airflow organization can offer higher cleanliness when compared with traditional ceiling-supply and wall-return airflow for non-unidirectional airflow cleanroom without increase power consumption. Taking variable electronic frequency on air-supply fan unit is efficient measure for energy-saving in cleanroom operation.

Abstract: The corrosion rates of rebar HRB400 in 0.5 wt.% NaCl solution were measured, and the mechanical properties before and after corrosion were tested. The results showed that, with the increase of corrosion time, the corrosion rate of rebar HRB400 increases and the corrosion becomes heavier. Meanwhile, the yield strength and tensile strength decrease, but the elongation decreases at first and then increases.

Abstract: Under the circumstances of the increasing ratio of China’s building power consumption, the electric energy efficiency index systems of buildings is established based on the interpretative structure model in the paper, including energy-saving of equipment, power energy information, energy-saving of management and comprehensive power consumption information. Then the fuzzy comprehensive assessment method is used for evaluating the present power energy efficiency of buildings.

Abstract: The research focuses on the construct techniques applied in cold areas, pointing out that the design should pay attention to the apply of energy-saving and low-cost technology, based on proposal which the build-in-cold-district technology has been. In this paper, the analysis is given mainly from the perspectives of building shape coefficient control, roof insulation layer, renewable resources, etc.

Abstract: In this paper the scope of the study is grounded on the conceptual ideas of Cradle to Grave and discussion on the full process of the local pozzolanics soil blocks or Muban Chombueng Product, MCP. First, the raw materials extraction and acquisition process, followed by using an end product and the process of natural degradation. The goal of this carbon footprint, CF study is to be compare the best products between MCP and commercial cement block, CB with the least effect on the environment and to guide the development of masonry unit towards a net reduction of resource requirement and emissions.

Abstract: The finite element analysis of the underground buried pipes were done by being used ANSYS software. In order to improve or replace the traditional calculation method, basic information on buried pipeline without frusta was set up , stress and deformation were analyzed, a finite element calculation model was established.

Abstract: Indoor environmental quality (IEQ) is an important topic which impacts on energy efficiency and also productivity of occupants. Thermal comfort, indoor air quality, visual comfort and aural comfort are four main physical parameters which are normally used to determine IEQ. In this paper, the results of field study on IEQ conducted in the offices and student study areas of 6 air conditioned buildings in Universiti Tenaga Nasional in Malaysia are presented. The study was conducted during the month of October and November 2013, collecting a full set of objective physical measurements and subjective assessments through questionnaires. The measured environmental parameters are indoor air temperature, relative humidity, air velocity, carbon dioxide concentration, sound pressure level and luminance. The subjective responses concern the judgment of the respondents about the IEQ parameters at the moment of measurements. The results obtained showed that 86% of the respondents found that the IEQ is acceptable and the environmental conditions are mainly within the limits set by the various guidelines and standards in Malaysia. The neutral IEQ values were also determined through linear regression analysis of the sensation votes.