Applied Mechanics and Materials Vols. 253-255

Abstract: There is a distinct lack of building design literature specific to the Central Asian region. This perhaps, could be one of reasons for the only slight improvement of new building designs and construction. One does observe the highly glazed buildings are a particularly popular feature here in Astana, as like anywhere else in the world. However, excessively glazed surfaces combined with the weather extremes leads to adverse internal conditions and skyrocketing energy bills. The work presented in this paper is a part of continuing efforts to identify analyze and promote the design of ‘low energy, green and sustainable buildings with special reference to the Kazakhstan locality. In the present context, low energy buildings’ refers to buildings inherently low energy consuming by careful passive design, utilizing intelligent building technologies to automate building services and minimize wastage of energy and by incorporation of renewable technologies for its energy supply. Demonstration of improved environmental conditions and impact on energy savings will be outlined through a cause study incorporating application of passive design approach and detailed computational fluid dynamics (CFD) analysis for an existing building complex. The results indicated that there is a considerable influence of passive design and orientation on energy efficiency, wind comfort and safety.

Abstract: Wave energy is recognized as an important pollution-free source of power generation in the world. So in last decades wide variety of wave energy converters (WEC) has been developed, meanwhile, more economical and reliable technologies were also under process. It is very vital to decide about the location of the WECs in a wave farm, which can increase the electricity generation ^[1]. To get the optimum power output, it is necessary to evaluate the layout of WECs by computer simulations, such as SWAN, MIKE21, SWASH, etc ^[2]. Among them, MIKE21 is a professional modeling and simulation engineering software, and is well known as a tool that provides a design environment for engineering, coastal management and planning applications. So, in this paper, MIKE21 BW was introduced briefly and applied to simulate and calculate the wave parameters of the Chengshantou wave farm, then, the layout of a new-type (Water-filled raft) WECs in the Chengshantou wave farm which can generate higher possible power output was investigated and the optimum scheme was achieved finally.

Abstract: To explore the thermal performance of RC Sandwich Panel with different connectors, three experiments were carried out to develop a study. In the experiments, three RC Sandwich Panels were manufactured using three kinds of connectors, the thermal performance of them was separately tested by corresponding device, and the thermal calculation of every panel was done according to the current thermal code. It is found that thermal performance of the three RC Sandwich Panels will be changed with connector’s variation. The results show that the thermal performance of RC Sandwich Panel using nonmetal connector is better than using metal connector, and the thermal performance of the RC Sandwich Panel using little section connector is better than using bigger section.

Abstract: The thesis states the building lighting regulated system composition, basic functions and work processes. Based on the compensation principle, making use of transformer controlled voltage source and the controlled current source model, the thesis analyzes the principle of the system voltage. According to the illumination and life span character of the lighting lamps and lanterns in different voltage, the thesis gets the optimal power supply of building lighting system electric lamps and lanterns. Finally, the building indoor lighting using optimal power supply voltage lighting and energy saving rate of building exterior wall using time-varying stabilized voltage control scheme are analyzed and calculated.

Abstract: The rapid development and expansion speed in the renewal of the China’s industrial cities are not suited to the current situations of large energy consumption of the existing buildings, these current situations causes the urban environment and resources to be destroyed and the sustainable development of cities to be severely hampered. To solve these problems, a variety of resources for urban renewal in the energy conservation reconstruction of the existing building should be deeply developed, such as analysis and research of reconstruction background, local natural environment and natural resources, utilization of waste and recyclable resources etc., at the same time, perfection of the existing building energy saving assessment system is also the key to promote the settlement of the problems. This paper demonstrates the energy conservation reconstruction and comprehensive utilization of the existing buildings in the industrial urban renewal in various aspects in order to promote the sustainable development objectives of the industrial urban renewal.

Abstract: Graphene nanosheets (GNs) were introduced into graphite counter electrode to construct a graphite/GNs (GGN) counter electrode to enhance the photovoltaic properties of the dye–sensitized solar cells (DSCs). The efficiency of the DSCs with the GGN electrode is 38.4% higher than that of DSCs with graphite electrode. The improved efficiency is attributed to the enhancement in the short circuit photocurrent density and fill factor. The GNs with high conductivity in the GGN electrode are believed to strengthen the contacts among the graphite particles as well as between the carbon film and the substrate, providing enough conductive paths for the transportation of the electrons in the electrode. Therefore, the sheet resistance of the GGN electrode is reduced and the catalytic activity for triiodide ( ) reduction is improved, which are two factors to enhance the efficiency of the cell.

Abstract: Along with the economic development and the deterioration of the living environment, people’s sustainable development idea is deepening day by day. In this paper, there are several factors that influence the sustainable development of building energy. In view of these problems, this paper puts forward some solutions, such as improving the building’s service life, the utilization of waste concrete and Energy-saving architectural design.

Abstract: From the perspective of sustainable development,a combination of some construction examples domestic and abroad,This artical illustrates how to use solar,geothermal,wind,water and other natural energy in building design,in passive heatings and passive colling of both energy savings in order to provide for the creation of today's architectural reference.

Abstract: To study the actual energy-saving rate of a ground-source heat pump system (GSHP), this article discusses the actual performance coefficient of cooling condition. Compared with the conventional water-cooled chillers and conventional coal-fired boiler, there comes to conclusions that the actual average energy-saving rate is 43.9%, which is lower than the calculated , and the energy saving rate of heating conditions is 11.8% higher than that of cooling conditions. What’s more, we come to conclusion that the actual total load is one-third to two-thirds of the calculated total load, resulting that the actual payback period is 98.6% longer than the calculated payback period.

Abstract: This paper presents one application of industrial robots in the automation of renewable energy production. The robot supports remote performance monitoring and maintenance of salinity gradient solar ponds. The details of the design, setup and the use of the robot sampling station and the remote Data Acquisition (DAQ) system are given here. The use of a robot arm, to position equipment and sensors, provides accurate and reliable real time data needed for autonomous monitoring and control of this type of green energy production. Robot upgrade of solar ponds can be easily integrated with existing systems. Data logged by the proposed system can be remotely accessed, plotted and analysed. Thus the simultaneous and remote monitoring of a large scale network of ponds can be easily implemented. This provides a fully automated solution to the monitoring and control of green energy production operations, which can be used to provide heat and electricity to buildings. Remote real time monitoring will facilitate the setup and operations of several solar ponds around cities.