The Application Of Phase Change Energy Storage Module’s Development And Numerical Simulation In Communication Base Station

With the rapid development of the economy, global warming, deterioratingenvironment, imbalance between supply and demand of energy is the major challengeswe are facing with. As one of rapid development industries in our world,theinformation and communication technology(ICT) industry pilots a worldwideinformation industry revolution, the information and communications industry’s rapiddevelopment brings the new challenges to the task of energy saving and emissionreduction, but also brings new opportunities.As people’s awareness of the importance of energy issues, the attention of theenergy storage technology is also gradually increasing. The phase change materialcan absorb energy from environment or release energy at later time, so energy storagesystem is able to deal with the problems that energy’s supply and demand haveimbalance in time or in intensity, and improve effectively the utilization of energy.Phase change energy storage component can be used to regulate the surroundingtemperature of the environment, and has some particular advantages: it can be reused,huge heat storage density, easy to match with the energy consumption of the system.Now it is widely used in many areas of energy saving system.In the paper, the load characteristics of the communication base station areanalyzed. On the basis of it, a phase change unit and module is developed. The heattransfer process of PCM(phase change material) module is numerical simulated, andthe energy release characteristics of the module with the condition of air-conditioningis analyzed. The research contents are as follows:(1) Design Builder software is used to analyze the load characteristics of thebase station in various climates. The PCM module is developed which can be used inbase station.The working conditions of phase change unit in base station are analyzed.By calculating the enery-saving rate of the phse change unit in base stationcomparing to ordinary air-conditoner, the energy-saving potentials of five cities arereceived. Kunming has biggest number. Other cities: Shenyang, Zhengzhou,Changsha, Guangzhou, have smaller and smllaer enery-saving rates. Guangzhou hasthe smallest number,52.62%of the saving rate.(2) The mathematical model of plate PCM module is established. By reasonable simplification and processing, the governing equation of heat transfer is received.Then the numerical solutions of it is proposed by using the finite volume method andequivalent heat capacity method to discrete control equations.(3) By studying the numerical results of the PCM module, the various factors’seffect on the energy releasing process, such as plate length, thickness, heat transferfluid flow rate, outlet temperature, convective heat transfer coefficient and thermalconductivity of PCM, are analyzed. The corresponding optimized structure is proposed.Those researchs laid the foundation for the research group’s development and designof efficient phase change module.