Applied Mechanics and Materials Vols. 361-363

Abstract: The paper analyses the ecological development trend, the challenges for sustainable development and the core concerns of the contemporary CBD, and expatiates the connotation of Green CBD. Based on the ecologic support model, this paper also introduces the methods of design and system of elements of Green CBD and explores the way to achieve sustainable development of CBD in the course of urban plan.

Abstract: With the development of production and urbanization, many problems such as environmental pollution, energy shortages, ecological degradation, atmospheric warming and so on, have become increasingly serious, which results in that peoples attention of their living environment is further improved. In the wave of national sustainable development, Inner Mongolia autonomous region has come up with certain sustainable development policies since 2001, roundly discussing questions in terms of Inner Mongolia economy, society, resources and environment. The grassland living environment and ecological construction are also included. Taking the grassland habitat's typical living formMongolian yurt as an example, this paper analyses the climate adaptability and green ideas of grassland traditional dwellings, according to natural characteristics and energy resources of the grassland. With the purpose to provide valuable references for the sustainable development of grassland, this article points out some present problems and puts forward the corresponding measures of green renewal and ecological design.

Abstract: As the rapid development of urbanization in China, the conservation of building energy has become a world trend, the rapid rise of building energy will lead a huge pressure on energy supply and environment protection. Renewable energy sources, like solar and geothermal energy, have the incomparable superiority than conventional energy sources, if renewable energy sources could replace conventional energy source and play a major role fully, the serious energy consumption must be relieved effectively. In this thesis, the summer-refrigeration of SWHP (Surface Water Heat Pump) is set as the research target, the applicability research of SWHP is carried out, apart from that, building the evaluation system and putting forward the level determination method of energy efficiency.

Abstract: Grid-connected photovoltaic (PV) system efficiency can be maximized with building demand matching. Computer simulations were used to investigate the priorities of energy efficient measures commonly used in residential and commercial buildings in Thailand that decreased the electricity demand while producing load profiles that matched the unique output profiles from PV systems. Residential and commercial buildings in Thailand were modeled in existing conditions. Then they were made compliant with ASHRAE energy standard requirements which can reduce electricity consumption 16-36% in residential buildings and 8-19% in commercial buildings. With energy efficient design measures, electricity production from PV systems could satisfy the remaining consumption and peak electricity demand reduction could reach up to 70% in residential buildings. Electricity consumption and peak demand reduction in commercial buildings was not high. Reducing lighting power density in residential buildings, using higher glazing efficiency in small offices and using thermal mass in big offices were found to be able to reduce more peak load when electricity output from PV systems were incorporated in the buildings compared with other measures. Energy efficient design measures suitable for different purposes in each building type have been identified. Building owners and electricity utilities can use this information to select the best energy efficient design measures that fit their objectives.

Abstract: Based on 107 data of public building energy auditing and energy consumption statistics, using multiple linear regression method, this paper given an equation for calculating energy public building consumption quota. It can get energy consumption quota simply and conveniently. The equation was close to actual energy consumption of public buildings. It consider building area, heating degree day (HDD) and building type. The results can be help the government formulate the energy consumption quota for public buildings.

Abstract: The steel residential building has been widely used for its good seismic performances. In order to study the energy-saving behavior of the existing steel residential building, an on-site test on envelope structure of a typical steel building in cold region is conducted. Based on that, a simplified numerical model is established in which dynamic energy theories, solar radiations and indoor thermal disturbances are considered. The model is verified through testing data. Parameter analyses including 6 series sum up to 38 models are carried out on 6 main influential factors. The results show that improving thermal behavior of building envelope, adopting flexible sunshade schemes in different seasons, using even and simple building configuration and adopting different window-wall ratios for windows with different orientation are effective ways to decrease the energy consumption of buildings. The thermal design recommendations for steel residential buildings are also produced.

Abstract: This paper investigates heat transfer enhancement of the microencapsulated phase change material (MPCM) suspension. The specific heat of tested sample is measured by A Differential Scan Calorimeter (DSC) analysis. The corrected factor of sample is obtained by theoretical analysis and DSC measurement. The thermal conductivity is obtained by theoretical analysis and verified by previous works.

Abstract: Combined with the natural climate and geographical location feature of Baotou chosen refining indicators, this paper built the Residential building energy saving comprehensive evaluation index system referring to the standard of residential building energy efficiency design, and that proceeding from design constructing and operating stage of constructions.

Abstract: Based on the air condition systems theorem, by EnergyPlus7.0 the office building models were built up with the variable air volume (VAV) and constant air volume (CAV) systems separately at SPSU campus in the USA. The weather datum from Department of Energy US were used to simulate the energy consumption performance both daily and annually. Results show that the VAV system saves the sensible cooling rate 19.25% compared with the CAV one in the hottest day. The VAV system saves the sensible cooling rate 8.95% and reduces the outdoor infiltration sensible heat gain about 35.06% yearly. The VAV terminal-damper position doesnt change linearly as the outdoor climate temperature for the complex system in heating, ventilating, and air-conditioning (HVAC). Though the outdoor temperature is the same, the system sensible cooling rate is greatly different in autumn and spring day.

Abstract: At present, China is in a period of rapid development of urbanization. However, the current focus of architectural design is mainly in the city, which makes rural residential development has lagged far behind in the town. In fact, in the country's vast rural areas still exists many problems, and the problems of energy-saving are still in the initial stage. Meanwhile, the future development of the rural areas will affect China's overall level of development directly, therefore, promoting and developing green building in rural areas, will be conducive to the sustainable development of our country. The thesis combines the practical problems of the rural areas, discussed the content of the rural residential energy conservation design in detail from the perspective of sustainable development, from the planning and layout, building materials, energy utilization and other aspects, in order to provide a reference for the development of rural residential energy conservation.