Papers by Keyword: Saving Energy

Abstract: According to the ventilation and heat issues of Beijing Capital International Airport T3 Terminal Station Transportation Center (GTC), based on the actual conditions of the building structure, geographical location, climate and other characteristics, the internal environment of temperature and other issues are analyzed and researched. And the relationship of indoor air flow and interior space of the building is established. With methods of CFD, and from the perspective of the Energy Saving and Environmental Protection, natural wind and related technology are utilizes, and natural ventilation and heat transferring guidance systems are designed, so that the internal temperature is reduced and the indoor comfort is improved. Introduction Beijing Capital International Airport is located on a piece of land of Chaoyang District on the northeast of Beijing, 25.35 km from Tiananmen Square. It is the busiest transportation and production major international airports of China, on the most important location, with the largest and most complete equipment. Beijing Capital International Airport T3 Terminal Station Transportation Center (GTC) is located to the south of the T3 Terminal Building, with total construction area of more than 34,000 square meters. 1,2-floors underground are open-large parking garage, the first floor has multi-hub facilities supporting the airport, and the second floor is suburban railway stations. The roof is a glass dome, and used long-span structures. The main functional area is a large space, and the external structure for large area is glass walls. The form is determined by functional requirements of the terminal station and visual and psychological demands of people. More precisely, the form not only is a concrete manifestation of humanized design, but also brings the problem of high energy consumption.

Abstract: This paper presents a proposed energy saving system for street lamps based on single-chip microcomputer. In this case, light control timer, smart sensor, wireless transceiver, microcontroller smart regulator and other related techniques are utilized to fullfil a ‘green lighting project’. It can not only automatically turn on or off the master switch according to the local sunrise and sunset, and sooner or later, sunny day, rainy days or the actual brightness of the different lamps, but also control each single lamp intelligently. The system can be widely used in road and tunnel lighting, building lighting, and other fields as well as a variety of energy-saving control dimming voltage based intelligent control areas.

Abstract: Based on the study of a patent, the configuration and action principle of a new variable displacement of double-action vane pump is discussed. The pump is equipped with floating blocks that may move up and down in accordance with the rotational speed of the pump. The pump belongs to an automotive hydraulic power steering system. The mathematical and simulation model for the hydraulic power steering of an automobile was established. Different pump parameters were selected for simulation. The simulation results showed that the pump with the floating block can provide power characteristics are better than a common pump. The utilization of the proposed pump is expected to improve efficiency and decrease exhaust gas and noise.

Abstract: The severe plastic deformation (SPD) procedure designated continuous confined strip shearing (CCSS/C2S2) technique based on rolling, equal channel angular pressing (ECAP) and Conform principle was simulated numerically by using finite element code DEFORM-3D. The influences of rolling reduction ratio on restoration ratio of work-piece geometry, effective strain, output velocity of processed work-piece, torque of rollers, and energy consumption feature for the C2S2 procedure were investigated. The results show that rolling reduction ratio has significant influences on C2S2 procedure. With the increase of rolling reduction ratios (5%, 10% and 20%), the restoration ratio of work-pieces geometry reduced, the magnitude of effective strain kept almost unchanged, the output velocity of processed work-piece increased, the total torque of rollers decreased, and the energy consumption used for making unit volume work-piece subjected to unit straining reduced considerably. It was found that the optimal rolling reduction ratio was about ~10 %, where the energy consumption reduced by 8.16 %, whereas the restoration ratio of work-piece geometry was almost the same as constrasting with the rolling reduction ratio of 5 %.

Abstract: Water granulating is widely used to treat blast furnace slag in iron-making process, and the large amount of waste heat of granulating water is currently wasted in the cooling tower or in detritus tank. In response to the status, a new-style technical scheme that the granulating water was used for building heating as the heat source was put forward in the paper. Based on the analysis calculation on the heat balance of the water granulating process, the technical scheme and the system optimization method were put forward in the paper, and a specific engineering in Jinan Iron&Steel group was calculated and designed. The result showed that the system could supply heating for the living district, and the water was cooled effectively for circulating utilization. It would gain great energy efficiency and environmental benefits.

Abstract: In this paper, with the purpose of constructing the low-carbon and energy-saving new rural countryside, we regarded the cold region in the Northeast of China as the research object, with analyzing the energy consumption structure and patterns and the main problems of planning and construction in countryside, we proposed planning technology measures and building programs considering selection of topography, design and layout , division of the functional region within the towns and villages, encouragements to build the row of houses, construction of multiple windbreaks, exploration of the energy from rural production and living waste and development of the new energy of solar, biogas, wind and other energy to adapt the character of cold climate.

Abstract: Through the reconstruction project of teaching building in Huazhong University of Science and Technology, several effective and detail strategies of Energy-saving technologies has been researched for sustainable building in hot summer and cold winter area.

Abstract: International tension between energy supply and demand boost developments of energy-saving industry. Structure drawbacks of four linkage bar of the conventional beam pumping unit in oil field artificial lift led to the study of a single crank flexible pumping unit. Because of beam pumping unit issues, such as many energy transfer links, high energy consumption and investment, and so on, the single crank flexible pumping unit made the flexible delivery instead of rigid, substantially reduce the energy transfer links, to reduce the weight of the load rod as a breakthrough to achieve light and compact oil production ground equipment, while minimizing energy consumption, increased functionality, lower investment and overall cost. Field tests show that significant energy savings are found in the single crank flexible pumping unit, which is worth of promoting.

Abstract: Most currently used shutters are manually operated. The design of an intelligent shutter has been proposed. The intelligent shutter can be powered by a solar battery. Photosensitive resistors have been used to determine if it is in daytime or nighttime, if it is sunny or not, and if the light is turned on or turned off. Digital temperature sensors have been used to detect the indoor temperature and the outside temperature. They are also used to determine the current season. The intelligent shutter is automatically controlled according to the above information. It is turned off at night and is set in sleep mode to save energy. It is turned on partially on sunny day in summer. In rainy day, the shutter is turned off while the indoor light is on. The intelligent shutter can also be controlled using a wireless remote controller, which makes it very friendly. It is comfort and energy-saving using the intelligent shutter. Experiments have demonstrated the applicability of the design.

Abstract: Reducing the traction energy consumption plays an important role in railway energy saving. Viewed from the present research situation--the models were all based on the train without energy-feedback, moreover the line condition is the fixed steep down or steep up grades, the train group energy control strategy on continuous change gradient steep downgrades with the energy-feedback is proposed. The advantage for energy-saving of the strategy is proved through the traction calculation in theory. On that basis the optimization method is applied to get the optimal strategy balancing the operation time and energy consumption. By comparing the traditional control strategy with the optimal control strategy, the experiments show that the optimal overall target index of the operation time and energy consumption is much better.