Applied Mechanics and Materials Vols. 361-363

Abstract: This paper analyzes architectural concept of the use of double envelope enclosure, and expounds the advantages of the energy efficiency in the construction of double-envelope enclosure. After parsing the key points of the high-rise building energy efficiency design, which leads to the use of double envelope enclosure in the energy-saving design of high-rise buildings. Including the thermal insulation of double doors and windows which reduce the energy consumption of the air conditioning equipment; the ventilation ability of double-envelope enclosure which reduce the power consumption of mechanical ventilation; thermal insulation and sound insulation performance of double-envelope floor and roof which improve the indoor comfort. As a result, the use of double envelope enclosure in the energy-saving design of high-rise buildings is worthy of promotion.

Abstract: With energy and environmental issues are increasingly becoming the focus of global attention, building energy efficiency is one of the basic strategic planning for sustainable development in China, it is developing rapidly, and gets impressive results. Nevertheless, the building energy saving in our country that what has a lot of questions. For this reason, virtual simulation technology is made full use in building energy-saving and made practical engineering application analysis, a new method will be sock in building energy-saving design.

Abstract: The significance of energy-saving and emission-reduction in architectural design of university campus was described. And the problems of energy waste in architectural design of campus were analyzed. Finally, the measures of energy-saving and emission-reduction in architectural design of Campus are put forward, including the design in the building orientation and graphic, roof and external retaining structure, shape coefficient, new technology and material, system, water supply and drainage system, structural design, and the use of renewable energy etc.

Abstract: Facing with the high energy consumption in Chinas building sector, it is of great significance to understand the accurate building energy consumption. Therefore, this paper investigated the different analysis methods of building energy consumption mainly applied in China, trying to understand the status of building energy consumption. Field survey and statistics, models, and computer simulation analysis, employing as major instruments currently for analyzing building energy consumption in China, were introduced briefly.

Abstract: Vanadium oxide thin films have been deposited on glass and ZnO-coated glass substrates by reactive RF-magnetron sputtering deposition at different substrate temperature. The introduction of ZnO buffer layer could increase the transmittance. The buffer layer ZnO could lead to the increase of the crystallinity quality of VO₂ films and substrate temperature could be decreased to 100°C for the obtaining of polycrystalline VO₂ structure. The structure of VO₂/ZnO/glass is considered to be potentially applicable to smart windows of high total energy efficiency in architectures or automobiles.

Abstract: This paper deals with a novel system of glazing and presents a water filled window or more precisely window with water flow in cavity within its one year performance. The paper also provides a description of basic principles of functioning and variability in concepts of the window. The results show that the indoor room heat gain can be reduced and this system could be used as a pre-heated water source. There is a great energy-saving potential in applications with these systems, especially in buildings with large glass surfaces which make use of hot water, like gyms, swimming pools, hotels etc.

Abstract: Floating body with rope wheel structure is a new wave energy device, which is simple and low cost. Mooring system is the key technology of this device, which is use to limit the horizontal motion of the floating structure in the designated area. In this paper, potential energy theory has been used in the process of design and calculation of mooring system. Using the result of calculation, the motion of the floating body has been simulated numerically.

Abstract: Nowadays, choosing of heating source is emphasized. On the market there are different types of heat sources, which need to be properly designed to the required heating output. Finally, it is necessary to take into account the possibilities of fuel burning as well as heat transfer substance. Heating system is dependent on regional weather conditions, where the building is located. All these factors ultimately, with proper design of the heat source, could reduce operating costs in the heating season. Currently in the design of the heating system, there are taken into account the greatest possible energy savings. It is therefore to encourage bigger utilization of renewable energy sources.Currently has the highest proportion of total energy consumption in the buildings, energy for heating. For this reason, the expert and research community seeks to reduce energy consumption at the lowest possible value. For this purpose, people are starting to apply renewable energy sources. These devices using renewable energy sources convert energy from the environment. Most of them are transforming energy from the sun, earth, water and air. This energy is then used directly for heating. In this article we will more closely deal with transforming solar energy into electricity using photovoltaic panels and we will focus on the interaction between the photovoltaic system and heating and cooling system, under certain conditions. Produced electric energy is used for heating system in the school building in Spišská Nová Ves in Slovakia.

Abstract: The ground-coupled heat transfer in buildings is a complex, transient and multidimensional problem. There have been many studies focused to obtain the heat flux in slab and basement foundations. Most of them include the multidimensional effects occur at the perimeter however there are situations in which the heat transfer is mainly one-dimensional. This paper presents a study that aims to establish the accurate of an analytical one-dimensional solution to estimate the ground-coupled heat transfer. Detailed simulation by using finite element software is used to obtain the total heat flux at indoor surface of the building for a whole year. Typical slabs and basements foundations for different dimensions have been analyzed. A correlation to estimate the relative error is proposed.

Abstract: Future development of solar energy technology will focus on photovoltaic (PV) component. Analyzing the application of PV roof on large space structure system, this paper points out that key points of application of this technology are PV cells and roof bearing body. Besides, the discussion of what is important in structure design of PV roof shows that the calculation of Building-attached Photovoltaic roof (BAPV roof) should consider the influence of load applied on the windward side and leeward side, the synergic action of panels and supporting frames and whipping effect; while the calculation of Building-Integrated Photovoltaic roof (BIPV roof) should put bearing load on the first place and satisfy insulation work as well as waterproof work of roof. The conclusion is that the future development direction of roof is the two-in-one PV roof.