Applied Mechanics and Materials Vols. 71-78

Abstract: Chinese traditional architecture construction has some ecological ideas in common with principles of Green Architecture. This article introduces briefly the basic composition of Chinese courtyard dwelling form and its climatic advantages, and analyzes the changeable strategy of courtyard dwelling developing into variation forms so as to adapt to different regional climates. It also sums up the characteristics of the changeable strategy and the spirit of Chinese traditional philosophy it implies, which could be an inspiration to the research on climatic-responsively energy-saving modern architecture.

Abstract: Buildings are large consumers of energy in all countries. In regions with harsh climatic conditions, a substantial share of energy goes to heat and cool buildings. This heating and air-conditioning lost can be reduced through many means, such as the selection of the building thermal insulation materials. The proper use of thermal insulation material in buildings does not only contribute in reducing the annual energy cost but also helps in extending the periods of thermal comfort without reliance on mechanical heating and air-conditioning. Aerogel is one of the novel insulation these years, thermal conductivities of 0.04 W/mK less can be achieved using it. The paper is concerned with a review of Microporous Aerogel for building applications. And it also provides information about their performance.

Abstract: The main objective of this on-site study is to use a full-scale HVAC (Heating, Ventilating and Air-Conditioning) system installed in an office building in Taiwan for comparing the power consumption, energy-saving, and CO₂ reduction by variable primary flow (VPF) chilled water systems for controlling the HVAC. The on-site experimental results indicate that average power consumptions are 44,935 kWh for the constant volume (CV) chilled water systems, and 39,025 kWh for the VPF system. Approximately 19% of the maximum energy-saving rate can be achieved if the HVAC system is operated as a VPF system. Additionally, the reduced quantity of accumulated CO₂ emission varies from 0 to 44,186 kg with 0.623 kg-CO₂ kwh^-1 emission factor during the office hours of 08:00 (a.m.) to 20:00 (p.m.). The results demonstrate that switching the operation of an office building HVAC system from CV to VPF will significantly enhance energy savings and CO₂ reduction. This study is will offer useful information for evaluating an indoor environmental policy with respect to energy savings and CO₂ emission reduction for office HVACs used in subtropical regions.

Abstract: Geological conditions in Zhaogezhuang are complex, and seam angles change greatly. The seam angles achieve mechanization, which is a major breakthrough in the coal mining management. Therefore, the spontaneous combustion management in the working face under complicated geological conditions has also become a safety problem. The concentration of O₂ and CO and temperature changes in floating coal in gob area of 3237 working face are determined and analyzed. The division scopes of spontaneous combustion “three zones” are determined. And the possibility locations easy to fire are found. It has important guiding significance to prevent spontaneous combustion.

Abstract: Optimal allocation of coal resource is a major theme that can not be ignored to healthy development of Chinese coal industry. Based on the basis of analyzing the main factors that affect optimal allocation of coal resource, besides from five respects which are the sustainable development, new-type industrialization, industrial safety, recycling economy, and resource monitoring, this paper advances an evaluation index system of optimal allocation of coal resource. Further stepwise order relations analysis and comprehensive analysis with gain characteristic are also used in comprehensive evaluation. Finally it supplies a method that can be used for reference to quantitative evaluation of optimal allocation of coal resource.

Abstract: Under the circumstance of worsening international and domestic economy developing environment, Jiangsu must pay attention to and accelerate the transformation of economy development. Through the economy escalation by low-carbon industrial development in Jiangsu City, the paper emphasized that the government should play a guiding role, focusing on the subsidies and tax policy, coupled with the low-carbon technology innovation, low-carbon economy enterprise operation and management of public utilities, public low-carbon mechanisms such as promotion of universal consciousness, and build systematically low-carbon economy development mechanism system in Jiangsu, combining low-carbon economy development with industrial structure optimization, and realized the transition from high-carbon growth to low carbon growth.

Abstract: Sea surface data products play an important role in applications of remote sensing. Using thermal images acquired by HJ-1B launched in September 2008 and the near-real time measured data, improving the existing Mono-window Algorithm, accordingly, a new quantitative algorithm was proposed. The new algorithm was compared with Duan's algorithm in accuracy of SST retrieval in the experimental regions. Results indicated that the SST retreived by the new algorithm was closer to the measured SST data in the experimental regions than that of Duan's. For the new algorithm, average error of the retrieved SST was 0.76°C from the measured SST. As contrast, the error was 1.09°C for Duan's algorithm.

Abstract: By discussing the significance, carbon storage and development trend of wood protection, changes and influencing factors of carbon sink reserves in wood protection are analyzed in the article. Meanwhile, the author puts forward some issues on carbon sink, such as modifying wood function by wood preservation technology and fire retardant method, expanding the application fields, and slowing down carbon release. For the lack of research on carbon sink reserve and carbon storage function in wood protection, wood recycling is presented as a technical route, from which shows the relation between carbon storage and wood protection.

Abstract: Aimed at the need of data processing and analysis in the performance experiment of hydraulic torque converter, we put forward a way of experiment data analysis using neural-fuzzy system. It can reduce manual participation, improve the data processing ability, accelerate computing velocity and realize data handling automation. We can judge product’s performance by this method. The use in experiment data indicates that it can express the relation of original data nicely. The identifying accuracy of data is good. It can satisfy the request of experiment analysis and the analytical conclusion is accurate too.

Abstract: Blend fuel of corn stalk and coal was made in a series of blend ratios with corn stalk mass percent ranging from 10 to 90%. Several data were gotten by proximate analysis with considering indexes of volatile matter, fixed carbon, sulfur content, heat value and ash. The regression equations of the data were gotten through regression analysis for the relationship between blend ratios of corn stalk(BRCS) and proximate analysis data(PAD)．The result showed that there was linear relation between PAD of the blend fuel and BRCS, and linear equation slope absolute value of volatile matter, fixed carbon, sulfur content, heat value and ash were 8.49,7.64,5.45,4.85,3.97, respectively. Volatile matter content increased with the increase of BRCS, and other PAD was opposites. Variation rate and variation tendency of the blend fuel PAD was gotten through proximate analysis and fitted equation, and some references may be provided for utilization of blend fuel of biomass and coal.