Advanced Materials Research Vols. 250-253

Abstract: The aim of this research is to present a relatively ideal pollutant control scheme, through the comparative analysis of pollutant distributions with multiple exergy intensity in a household kitchen under four different control schemes. In this paper, in order to simulate kitchen pollutant diffusion and distribution, the neural network model is established and simulation software is developed on the platform of VC++ based on measured data.

Abstract: A novel window type air-conditioner with energy recovering was experimented. The experimental prototype can make fresh air exchange heat with exhaust air in an additional heat exchanger, which consist no additional moving parts. The EER (energy efficiency ratio) of the experimental air-conditioner (EAC) is increased by 17.4~37.3% than that of the original ordinary window type air-conditioner (OAC). On the other hand, the fresh air proportion of the EAC is increased by 20% or so than that of the OAC, so indoor air quality can be greatly improved via the EAC; however the indoor noise of the EAC is increased by 3.2 dB or so. The novel experimental prototype is of great significance for energy efficiency.

Abstract: This thesis provides a study and analysis of the flexural strength, compression strength of Elastocoast® PUR-stone which is effected by temperature .Through seven tests we find that temperature does not exert any major impact on physics and mechanical properties of Elastocoast® PUR-stone . This tests provide the reliable guidance for cold region engineering.

Abstract: Elastocoast revetments frost heave adaptability model test was carried out. Conclusions: (1) Elastocoast revetments can increase heat resistance and decrease the energy transfer. So the frozen depth and amount of frost heaving could be reduced. (2) This structure has deformation characteristics with temperature, and has a deformation at the test beginning. (3) The freezing rate under revetments is slow and the water supply is sufficient, because of which the amount of frost heaving will occur at one third of side slopes of canal, and the bottom of canal take the second place. (4) Consolidation settlement occurred after freeze-thaw cycling. And the revetments have a trend of becoming gentle slope. It indicates that Elastocoast revetments can commendably adapt to frost heave deformation. (5) The freeze-thaw durability is influenced by water content and the dosage of Elastocoast. The capability to resisting freeze-thaw denudation is better with the water content reduce and the material dosage increase.

Abstract: Building-integrated photovoltaics (BIPV) is a relatively recent new application of photovoltaic (PV) energy technologies whose energy output is affected by many design-related factors including PV module technologies, installation orientation, tilt and shadow range of solar panels. The shading analysis of a residential house’s PV roof in Beijing was conducted by using building analysis program Autodesk Ecotect 2010. Analysis result shows that there is no shadow on the PV roof from 9a.m to 4p.m in winter solstice when the solar altitude angle reaches minimum, which ensures almost no shading losses for the PV modules over the year. The differences in monthly energy output were compared in the case of different installation tilt of solar panels and PV module technologies. Finally, the contribution to the building energy of the PV roof was discussed. The results show that appropriate design and selection of PV modules can compensate for the energy requirements for building heating and cooling to some extent.

Abstract: The paper describes the action mechanism of bitumen emulsion and aggregate, the charge test of aggregate and reaction heat test between aggregate and bitumen emulsion are used to analyze adsorption mechanism. The results show that at moisture condition alkaline aggregate generally carry positive electric charges, while acidic aggregate negative charges. Interaction between aggregate and bitumen emulsion can be affected by affinity of the materials, extent of chemical reaction and electrical property on their surface, which can determine the mechanics properties of the mixtures. The adhesive coefficient can be used to evaluate adhesive property between aggregate and bitumen emulsion, K_ad is the larger, the adsorption strength between aggregate and bitumen emulsion is the larger.

Abstract: This paper investigated the effect of different initial moisture contents on the characteristics of coupled heat and moisture transfer of a reinforced concrete-EPS thermal insulation composite wall in Harbin. The change of the moisture content with time and the change of the heat transfer coefficient with time of the reinforced concrete-EPS thermal insulation composite wall at different initial moisture contents in Harbin were numerically simulated. The relative humidity and the quantity of condensed water in the air layer of the reinforced concrete-EPS thermal insulation composite wall were also calculated. The paper provides a scientific proof for the influence of the process of construction of a reinforced concrete-EPS thermal insulation composite wall on the energy-saving of buildings.

Abstract: Caofeidian harbor is a large size deep-water harbor currently under construction in the Bohai Bay, the eastern coast of north China. The construction began in 2003. The characteristics of tides and tidal currents in the Caofeidian area are analyzed with field data from comprehensive field observations from 2008 to 2010. The field observations and analysis show that the tide is the irregular semi-diurnal and tidal current is characterized as a type of reverse flow with moving west during flood tides and east during ebb tides. In general, the flood current is slightly stronger than the ebb current, and the strongest tidal current appears in the Caofeidian foreland, which is the predominant driving force to maintain the deep water depth.

Abstract: Shenyang is located in the cold areas and main industy city in China. The most current industrial buildings can’t meet the demand of energy-saving standard because of the thermal insulation performance of the windows.This paper aims at using DeST software to analyze industrial workshop energy consumption, according to different types of external windows and window-wall ratio of buildings to provide reference for energy saving design of industrial buildings in Shenyang area.The thermal performance of the windows has great effect on the heat load. The lower the heat transfer coefficient of windows is, the more beneficial for energy saving of the buildings. The window-wall ratio has great effect on the energy consumption, and different heat-transfer coefficients possess various sensitivity for window-wall ratio, and reflective glass varis smaller than the others.It is better for energy saving to replace the conventional windows with plastic-steel reflective glass windows.

Abstract: The multi-resolution flooding routing model advanced firstly is composed of the extensive flooding routing model and the fine flooding routing model. In the article to put up research and discuss detailedly the 3D visualization of the mul-resolution flooding routing model which is as the non-engineering measure about the water conservancy management. In the article to analysis the constructing method of the mul-resolution flooding routing model mainly ,which is the theory and method about the extensive flooding routing model and the fine flooding routing model constructed and to work out material the extensive flooding routing model and the fine flooding routing model. Finally to applying the statistic analysis method to get the below conclusion: ①Applying the visualization system about the multi-resolution flooding routing model is to act the non-engineering measure about the water conservancy management and it provides a new thought and trusty scientific decision-making for the water conservancy management department; ② The results of the storage capacity and the submergence area worked out by the the fine flooding routing model are more precision than the result of the general method. The above conclusion proves the feasibility and science about the construction of the multi-resolution flooding routing model adequately.