Study on Optimization of Geothermal Heating Cascade Utilization Model
Based on sustainable development,increasing geothermal energy efficiency is an effectiveway to save energy and increase efficiency in geothermal heating,and tail water recharge is the fundamental guarantee for the sustainable development and utilization of thermal storage.Different geothermal energy heating operation strategies result in different geothermal energy utilization ratio and total energy efficiency of the system.Different thermal reservoirs have different physical and chemical characteristics,in order to benefit recharge,energy saving and safety,it is appropriate to optimize the utilization mode according to their characteristics.Based on the case study of sandstone thermal storage heating under different operation modes and the advantages and disadvantages of different Quantitative analysis,a more reasonable reference model of cascade utilization strategy is provided.
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