Advanced Materials Research Vol. 280

Abstract: Based on 《Energy Saving Renovation Technology Standard for Existing Residential Buildings in Hebei Province》DB13(J)/T74-2008 ,This paper put forward 7 kinds of suitable for different time residential buildings energy saving renovation solution in Hebei province. It analyzed and calculated the energy conservation , economy and applicability of the solution , provided technical support for the energy saving renovation.

Abstract: A large number of seawater-source heat pump systems (SWHP) have been used in residential and commercial buildings in coastal areas due to the attractive advantages of high efficiency and environmental friendliness. To overcome the disadvantages of the open loop SWHP in winter of cold regions, a closed loop SWHP system with casted heat exchanger (CHE) is presented in this paper. The CHE is consisted of pipes immersed in the seawater and used for transferring heat between the seawater and the heat exchanger pipes of the SWHP. In addition, two mathematical models that described heat transfer process of CHE in the icing and non-icing conditions in winter have been developed and validated by an experimental study. The temperature distributions along the CHE were compared between the experimental data and numerical simulation results. The relative error is less than 5%. As a result, application of SWHP systems with CHE in coastal areas in China is feasible due to the favorable geographical conditions and environment.

Abstract: In the area of using renewable energy, promoting the efficiency of seawater source heat pump plays an important part. Several nontraditional technologies are can be used in the new seawater source heat pump system. As for the intake system, infiltration intake technology is introduced, which can increase the supply temperature of sea water and thus raise the efficiency of the system. And as for the terminals, a new-style PVC low temperature water flowing radiant heating (LTWFRH) system is used to match the temperature characteristics of seawater source. After the optimization of the whole system, the seawater source heat pump can be more efficiency and thus saving more energy, considering the energy conservation effect of seawater source heat pump itself.

Abstract: This paper has studied the main environmental geology problems about the Shabaosi gold mine by the way of the data used and investigation on the spot, the system is established in accordance with the components of the geology environment and evaluate this area’s environmental geology problems.

Abstract: Lignocellulose biomass is a kind of rich reserve in china, and it is a renewable bio-resource. Researches on the bioconversion of lignocellulose (lignocellulosic biomass) to ethanol have been hot spot in recent years. The key technologies of producing fuel alcohol by aspects of lignocellulosic raw materials, pretreatment technology, fermentation process, enzymatic hydrolysis and fermentation of strains as well as the removal of fermentation inhibitors have been reviewed. It is pointed out that the improvement of fermentation strains, exploitation of double function saccharomyces cerevisiae (glucose and xylose fermenting) to ethanol, will be the direction and focus in future researches.

Abstract: The purpose of this paper sets forth the various hazards of vacant rooms. By analyzing the phenomena of the Housing and relevant data, the paper demonstrates the urban and town housing in China is not in short supply in the aggregate and the discrepancy between housing supply and demand is due to the real estate market speculation and investment which have led to the massive housing vacancy. These vacant houses waste a lot of resources, impact the life of other inhabitants, impede the developing process of the city’s livability, distort the relationship between the supply and demand in the real estate market, and push up the house prices. Therefore, the reduction of vacant housing is more important than the implementation of green building, this conclusion, and vacant housing hazards and data are where the innovation of this article.