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Li Q.,Hunan University | Li Q.,City University of Hong Kong | Li Y.,Hunan University | Chen F.,Hunan University | And 2 more authors.
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2011

Pearl River Tower(PRT) with a height of 309.6 m and located in Guangzhou was designed to activate four wind turbines for electricity power generation. Wind load plays a key role in the structural design of this building. Based on the wind tunnel test results of the PRT, the overall equivalent static wind load of the building, the wind pressure distributions on the facades and near the holes for installation of the wind turbines, the enhancement effect of wind speed inside the holes, and the feasibility of power generation by the wind turbines are studied. Some of these results are compared with those of a smaller scale model test, which shows that the overall equivalent static wind load are different while using different scale models. The four holes opened in the building for installation of the wind turbines will actually reduce the wind load on the building, but when the wind turbines are running, the minimum peak pressure of the tap in a hole will increase by 65%. Wind power generation in the super-tall building is an innovative strategy, but there is a need to conduct in-depth studies to make full use of wind power in super tall buildings. Source


Zhang S.-K.,South China University of Technology | Zhang J.-W.,South China University of Technology | Li W.,CNTC Guangdong Tobacco Corporation
Proceedings of the International Conference on E-Business and E-Government, ICEE 2010 | Year: 2010

As the developing of the information technology, more and more devices are with the capacity of communication and networking. Network Everywhere is coming true. The M2M businesses which communicate with the machines have been developing rapidly. However, because of the different standards used by machine manufacturers, the business applications which based on the machines are difficult to manage and expand; and at the same time, many application developers implement their own data-matching interfaces for a certain kind of machines, which makes a low reuse of these interfaces. Aiming at the M2M businesses, this paper designs a M2M platform which bridges the business applications and machines based on the J2EE framework and Service-Oriented Architecture. The M2M platform integrates business applications and machines as the form of Web Service, which reduces the dependence on each other and is able to response quickly to the change of the industry chain. In the recent development, the M2M platform has achieved business access successfully. © 2010 IEEE. Source


Li Q.,Hunan University | Li Q.,City University of Hong Kong | Chen F.,Hunan University | Huang S.,Hefei University of Technology | And 4 more authors.
Tumu Gongcheng Xuebao/China Civil Engineering Journal | Year: 2012

Pearl River Tower (PRT) with a height of 309.6 m and located in Guangzhou was designed to include four wind turbines for wind power generations in four wind tunnels in the building. This paper presented some selected results of the characteristics of wind speed amplifications in the four tunnels in PRT based on wind tunnel test with a rigid model of a large geometric scale 1:150. Estimations of noise distributions produced by the running wind turbines and wind flow through the tunnels were obtained by means of CFD numerical simulation. The vibrations of the floors near the wind turbines affected by the running wind turbines were evaluated through dynamic analysis using finite element models of the wind turbines and nearby 8 floors and the additional loads induced by wind flow with a velocity of 40 m/s through the tunnels. The experiment and numerical results show that: (1) the specially designed shapes of the tunnels have distinct effects on flow amplification; (2) significant effect induced by interference on the neighboring buildings was observed, and the maximum wind speed ratio of 2.71 was found in tunnel-2; (3) in most cases, the four tunnels can get required wind speed for wind power generation; (4) the noises caused by the running wind turbines and wind flow through the tunnels under the wind speed with a return period of 3 years were less than 50 db, which satisfies the noise limitation for city areas; (5) the vibrations induced by the running wind turbines with the approaching wind speed of 40 m/s were small, which satisfies the limitations of comfort level for high-rise buildings; (6) it is a feasible way to develop wind power generation on super-tall buildings, which is also an innovative strategy on utilization of renewable energy sources. Source

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