Advanced Materials Research Vols. 450-451

Abstract: Variable Air Volume (VAV) unit system is one of the commonly used forced-air heating and cooling systems in office buildings. It controls the airflow with the discharge air temperature fixed for cooling, while the discharge air temperature is adjusted with the airflow fixed at the minimum for heating. This study presents the simulation of conventional VAV unit system performance applied in the typical office building prototype. Each VAV unit has the minimum airflow setting for the ventilation purpose and its impact on the energy consumption is significant. The aim of this study is to evaluate the energy impact of the minimum airflow setting of VAV box using EnergyPlus ver. 6.0 software platform. The energy result breakdown of three model cases is discussed: minimum airflow fraction setting of 10%, 20% and 30%. As a result, the minimum airflow setting has significant impact on the reheat energy and thus the annual boiler gas consumption shows significant difference among each simulation case. Monthly heating energy profile is also discussed for the better understanding of the impact of different minimum fractions on the heating energy.

Abstract: Foam glass is a kind of inorganic heat-insulating material. It possesses excellent properties such as fire proof, water proof, heat keeping and insulation, sound absorption. But foam glass is hard and brittle; it is easy to be broken in the process of transportation and construction. Furthermore, the construction technology is complex and uneconomical whether in the external or internal thermal insulation system in construction. In this paper, foam glass plate was inserted in the concrete test block and was poured together into the Sandwich block. The compressive strength and the tensile strength normal to the interface between the foam glass and concrete blocks were studied through experiments. It will provide effective technical supporting for further study on the manufacturing of integrally poured concrete-foam glass Sandwich building blocks.

Abstract: Increasing investment on installation of construction equipment of energy saving and emission reduction in the new rural houses construction appropriately, it would improve the living conditions and enhance the living quality of rural residents significantly, which have very good economic and social benefits.

Abstract: Effective investigation attempts at the relationship between emotion and spatial design have been made in this paper which lists the significant impact of emotion upon interior design, emphasizes the emotional elements in design and advocates an emotional design concept. This paper pinpoints the goal of emotional design by demonstrating with examples the emotional characteristics and discusses the interplay between substance and the mind It seeks poetic residence design concepts and aims at interior design development toward the future.

Abstract: The grass brick house is made of the grass brick which is compressed by rice (Michael) straw and built to house. It has good heat preservation performance, low energy consumption and production building convenient, and it is harmless to the environment, protecting land and other characteristics. It meets the needs of using new building materials into the rural residential construction. To make this new type energy saving and emission reduction technology on grass brick building can improve, promote to the more rural, and provide the reference which can better service for new countryside construction on using building materials.

Abstract: Building energy efficiency is quite important for the sustainable development of our community.Based on the analysis of the building environment,building envelope,energy consumption of existing buildings and the economic condition of the region in Tangshan,the energy - saving renovation measures of building envelope and heat supply system is decided. Then the energy consumption of the energy - saving renovated building is analysed to verify the renovation results. The measures proposed can be one solution of energy-saving renovation in north region.

Abstract: Acrylonitrile-styrene-acrylate copolymer/polycarbonate (ASA/PC) blends were prepared over a range of compositions via mixing PC, SAN, and ASA copolymer by melt blending. An analysis was made on the mechanical properties and morphology of the blends. When a small amount SAN was introduced to ASA/PC blends, the dispersion condition of ASA in the matrix was improved and a better integrated mechanical properties was realized. Further increasing the SAN content led to a decrease of impact strength, which was due to the changing of the morphology of the blends and the inherent brittleness of matrix. Introduction

Abstract: The research of coupled heat and moisture transfer is a complex process, which is the fundamental of decreasing building energy consumption; improving IAQ and increasing the durability of building envelop. CHAMPS-BES software is an outcome of a joint effort between Building Energy and Environmental Systems Laboratory (BEESL) and Institute for Building Climatology (IBK). This software is used for analysis and prediction of hygrothermal performance of building enclosures; impact of outdoor climate and pollution on indoor environment; impact of VOC emissions from building materials and indoor furnishings on indoor air quality. This paper introduces the basic mathematic and physic model, boundary condition, climate condition etc, and analyzes the coupled heat and moisture transfer through common structure of building envelop in Shanghai. According to simulation results, main materials of the wall in ITIS have to endure larger range of temperature than ETIS that leads to the life of materials shorter. Capillary condensation occurs on inside surface of the wall easily when RH is larger than 70% and the minimum pore size of finish layer is around 5×10-9m avoiding capillary condensation and mold growth

Abstract: The campus building-integrated photovoltaic project is introduced in the paper. The installed gross power of the PV system is 470 KW, and its generation index is 173.7 KWh/m2.Compared with the traditional municipal power supply, the unit incremental cost of photovoltaic is 53.5 RMB/W and the cost effectiveness ratio is 1.75 RMB/KWh. However utilization of PV system will save fossil energy, lower pollutions and greenhouse gases obviously.

Abstract: A simple procedure is presented for estimating frequencies and the peak values of base resultant forces of eccentric non-proportionate buildings due to earthquake ground motions. Multi-story buildings composed by a number of bents with different stiffness matrices do not belong to the special class of proportionate buildings, which can be analyzed by a simple methodology developed in the past. This paper extends this methodology to all types of medium height buildings and is shown that their maximum response can be derived from the analysis of two single-story modal systems. The accuracy of the proposed method is illustrated in mixed-bent-type example structures and comparisons are made with the accurate results obtained by response spectrum analyses using the SAP2000 computer program.