Advanced Materials Research Vols. 671-674

Abstract: Building energy saving is the world faced by the construction industry in key technology fields, but also to ease the global energy shortage and improve the environmental quality. Based on the effective ways to promote the Chinese urban construction energy conservation technology development as the background, from the design of building energy-saving technology, construction equipment energy saving technology, heat recovery and heat and the utilization of renewable energy technology, energy efficiency evaluation etc, systematically introduced the latest progress in the research field of building energy conservation.

Abstract: In the process to build a sustainable society, building energy consumption keeps raising with the people's living standard. Therefore, reducing building energy consumption is an important guarantee to lower the whole country's energy consumption and build an economical society. Also, the development and construction of energy-efficient building is an important guarantee to reduce building energy consumption. As newly-built house is a major part of building construction, energy consumption reduction for new house plays an influential role in the action to reduce building energy consumption. The practical experiences of new house energy-saving in the developed countries, Japan as an example, are introduced. In this paper, a support system to promote our country's newly-built house energy-saving is proposed as a scientific reference for managers from government, enterprise, industry association to make energy saving policy and development planning.

Abstract: This paper aims to evaluate the optimum tilt angle of PV modules on louvered PV façade in Changsha - a city located at middle and low latitude, and representative cloudy climate conditions in Central China. Within these climate conditions, this research discusses the influences of external and internal factors on photoelectric conversion efficiency and shading effect of louvered PV façade. The research result shows that the external and internal design factors of louvered PV façade take opposite effects on the louver tilt angle. Under the influence of external factors, the preferred value interval will be β_opt≈Φ and β_opt<Φ, whereas under the influence of the internal design factors, the preferred value interval is Φ and above. Taking all factors into consideration, the optimal tilt angle of the PV louver in Changsha is selected as 30°.

Abstract: A solar assisted air source heat pump unit is designed. The mathematical model of the unit is established and two hybrid operating conditions of the system are simulated. The simulative studying results shows that in winter the solar assisted air source heat pump unit can make full use of solar energy and the coefficient of performance (COP) of air source heat pump can be improved. In summer the cooling heat of air source heat pump could be recovered to improve the stability of solar hot water collector and the COP of the air source heat pump unit is greatly improved. The performance of solar assisted air source heat pump unit is better than that of with no solar assisted air source heat pump.

Abstract: The paper mainly introduces the properties and dimensions of steel structure with EPS module applied in the energy efficiency system of industry building, further, proposes the key points of construction design and of construction technology for the application in practice, in order to promote technical guidance for extending application of this steel structure system with EPS module.

Abstract: Light steel keel structure is the most mature structure system in low-rise light steel structure residence. Exterior wall skeleton belongs to dense ribbed structure, so its thermal problems of exterior wall are more prominent. From light steel keel structure composition and exterior wall structure, based on the theory of thermal bridge, thermal performance of external wall is analyzed and thermal optimization measures of external wall in low-rise light steel keel structure are put forward. Specific measures are as follows: Firstly, finding the optimum balance point between the structure steel consumption and thermal performance; Secondly, punching in the steel skeleton webs to improve steel column; Thirdly, arranging the non-metal heat blocking between metal components; Finally, choosing external insulation system of outer wall. These measures are not only conducive to eliminate thermal adverse effects, but also can provide valuable theoretical basis for energy consumption analysis of low-rise light steel keel structure residence.

Abstract: Energy saving one must first be a good envelope, then considered from equipment technology on energy saving. From the building life cycle perspective, in the design of the ecological energy saving throughout, let the building has good ventilation, and the integration of the sunshade structure, good thermal insulation effect of the retaining structure, reasonable equipment systems, these measures will certainly to building energy saving play a positive role. According to the above principle scheme comparison and selection, saving energy consumption, better effect is obtained.

Abstract: Current use of excessive oil and natural gas is causing the greenhouse effect, the destruction of the Earth's ecology, and the increase in disaster crises. Many countries are forced to start looking for new alternative sources of energy to prevent irreversible environmental problems. Taiwan is an island belonging to subtropical area with abundant sunshine, and it is very suitable for the development of solar energy.Due to the effect of high atmosphericpressures in summer and continental cold masses in winter, coupled with complex terrain, different weather phenomena exist in the northern and southern Taiwan, and the weather, temperature, sunlight and rainfall are different in different places.Before setting up a solar plant, a good assessment and planning is necessary to prevent a waste in financial and natural resources in the future. This research first uses literature review to search for the important factors, and experts are invited to confirm the factors.Data envelopment analysis (DEA) is then applied to assess and analyze which areas in Taiwan are most appropriate for setting up solar plants.Results of the study shall provide solar industry for reference for sustainable development.

Abstract: Scholars have investigated through a survey in 1895 villages within 11 areas of Zhejiang Province by using interaction analysis method in various angles, overall considering regional difference, sized and organizational structure difference, geographic difference, industrial structure difference, economic developmental difference and other factors. The aim of this paper is to sum up features of humane ecological state quo in Zhejiang Province, for giving inspiring ideas and suggestions to a new round of cultural constructions of the new countryside.

Abstract: The study explores the architectural characteristics of the Nanyue Tmeple in three aspects: The influence of religions culture, culture of sacrifice and folklore, and Chinese traditional philosophy of nature. The results show that the architectural characteristics of the temple can be summarized as the followings- Samgharama principle used in the site planning; open space inside and close outside; architectural details and materials adopted from vernacular architecture.