| New energy technologies have gained widespread attention and concern as energy issues become increasingly serious. Groundwater heat pump technology is a technology approach of sustainable use of low-temperature geothermal resources. At present, many cities are striving to develop new energies and new technologies. Several improvements and successes have been achieved in the application of groundwater heat pump. However, as a newly emerging technology and due to researches related to energy, hydrogeology, water resources, and mathematics, etc, problem like the heat through of water source heat pump can only be judged by practical experience in the application of groundwater heat pump technology. It also leads to the slow development of the study of relevant theoretical guidance and the lack of theoretical guidance for groundwater heat pump technology. Thus, this thesis carries out a preliminary study on this problem by selecting Shenyang city zone as the scope of the study. It hopes to offer a few commonplace remarks by way of introduction so that others may come up with valuable opinions and make contributions as well as provide references to researches in groundwater hydrodynamic, temperature, and thermal break in the future. The main contents are as follows.1. Geological model of Shenyang cityThrough large amounts of analyses of geological data by GMS software, this thesis establishes the 3-dimensional geological visualization model of Shenyang city and it summarizes groundwater aquifers Q3 and Q4 as one aquifer according to the actual conditions of Shenyang city and the study characteristics of this thesis. By analyzing related data, it finally figures out the underground water depth is 10meters of Shenyang city. UpperPleistoceneseries floor above isoline of aquifer thickness between 20 to 40 meters in north of River Hun of Shenyang city. The thesis also computes relevant factors like water permeability coefficient in each study area and the water supply of groundwater in study areas.2. Model of groundwater flow fieldBy studying the results analysis of the hydrogeological model of the area, this thesis establishes the mathematical model. And establisheof the groundwater flow of centre district of Shenyang by using Aqua3D software. Then the model was identificated and verificated. Analysis of the research area of groundwater composed. As a result that River Hun is the major groundwater supply of Shenyang district, with a proportion of 55.29% in the total water supply. The groundwater level of the whole Shenyang city ranges from 26 to 49 meters and it shows a characteristic of higher in the east and lower in the west. The thesis analyzes the differences of groundwater levels and the reasons of wet periods and dry periods. It also makes a scientific analysis and prediction of the groundwater level of the study area in 2015.3. Groundwater temperature modelOn the basis of regional geological model analysis and groundwater flow field model analysis, the groundwater temperature mathematical model of Shenyang centre city district is established and a numerical simulation model is also established by using of Aqua3D software. The identification and verification to the model is then conducted along with the scientific prediction of the groundwater temperature of Shenyang district in the 2015. On the basis of that, it analyzes the relationship of thermal breakthrough time, distance and water consumption of groundwater source heat pump system under different recharge well methods by mathematics and statistics software and it finds the analysis outcome of heat transfixion quantity performance under different recharge well methods.4. Water quality analysis under the influences of groundwater source heat pumpThis thesis analyzes the conditions of 7 monitoring points show that, no harmful effects to the quality of groundwater happen during years’operation of groundwater source heat pumps. |
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