Simulation Experiment Research On Storage Characteristic Of Underground Aquifer

Strengthen the research and utilization of renewable energy in China is animportant approach to optimize energy structure and improve the environment.Geothermy can be used as a clean energy, at the same time, it is renewable. It has abroad space for development under the requirement of energy and emission reductionin our country. Under existing conditions, geothermy has two forms, ground-sourceheat pump and water source heat pump.The energy of soil source heat pump mainly comes from undergroundgeotechnical layer, through the geotechnical layer heat transfer medium and harvestenergy, the process of obtaining energy is accomplished only through heat exchange,the advantage is making less environmental impacts on aquifer, but this way to getenergy is low in energy density and the speed of energy transmission is slow. At thesame time, the cost of soil source heat pump project is higher. It is denser, faster,more simply in water source heat pump energy than in the soil source heat pump.However, water source heat pump draws groundwater directly which is easier tocause the destruction of the ecological environment underground. Water source heatpump has adopted open system in early time. Groundwater directly has dischargedinto the surrounding environment after heat exchanger heat transfer. The waste ofwater resources was serious, it can also cause surface collapse. Many countries havebanned to use it. The soil source heat pump usually uses the double well system.Namely in the pumping and recharge to the aquifer. At present, the application of soilsource heat pump is common. The relative research has been mature and the application of water source heat pump is paid more and more attention. The researchalso has a lot results.The application of water source heat pump involves several problems about heattransfer and mass transfer. It also includes thermal transfixion and thermal interactionphenomena. These phenomena lead to declining in the efficiency of heat pump,increasing in the operating costs. Thus maintaining heat pump efficiency has animportant significance in the process of its application.This paper studies and analyzes the underground aquifer energy storageefficiency based on the premise of thermal transfixion and thermal interaction. In theprocess of research, this paper mainly uses experimental method to analyze. It adoptssimilarity theory to make simulate experiments on the process of energy acquisitionand storage. It study the change law of heat and mass transfer and analyze the energystorage mechanism to improve the cognitive capacity of underground water sourceheat pump and the effect of heat transfer. It also guide the engineering applicationsand extend relevant theoretical knowledge.Based on groundwater dynamics, water source heat pump applicationcharacteristics were analyzed combining with the basic rule of heat transfer andenergy storage in the process. This paper explores heat migration mechanism ofstorage process and the changes of pumping hot heat removal process in potentialfield under the condition of the heat storage. The main content of this article includesthe following sections. One is to analyze the influence of different heat storage anddifferent patterns of heat storage based on the premise of hot interaction and energystorage property.First of all, this thesis analyzes the effectiveness of the energy storage. Bycomparing the process with heat storage and the process without heat storage, theeffect of regenerative heat on water temperature change is analyzed. This phase canthen be followed by the regulation of regenerative injection temperature and heat flow.The thesis studies the changes in water temperature under different heat storageconditions. The second phase is about the rearrangement of pumping wells. Namely itexchanges the pumping well and the injection well in the process of accumulation ofheat and recharges hot water in high temperature during the process of picking up heat.This process is divided into a variety of working conditions. This paper mainlyexplores the changes in pumping water under different working conditions by alteringthe parameters of temperature and flow rate.The last phase is numerical simulation. The thesis builds a two-dimensionalnumerical model to check the experimental results with the Fluent software. It alsomakes a simulation analysis of the experience which can not be demonstrated for thereason of limited conditions on the bench experiment.