Study On The Optimal Operation Of Rural Heating System In Beijing,Tianjin And Hebei

With the continuous improvement of my country’s economic development level,while improving the quality of life of residents,it is facing the problems of energy shortage and environmental pollution.The rural energy consumption in the northern region accounts for more than half of the total rural energy consumption in the country,and more than 80%of it is used for heating.This data shows that in the cold northern winter rural areas,the problem of clean heating cannot be ignored.In response to the national call for energy saving and emission reduction,most regions in my country have implemented policies such as"coal to power"and"coal to gas".However,due to many safety hazards and economic problems in natural gas heating,it is difficult to establish a large-scale natural gas pipeline network in a large rural area in northern rural areas where residents are not concentrated,and natural gas combustion will also produce a lot of polluting gases,which is not completely clean.The"coal to power"policy is mainly promoted by the government’s economic subsidies,and in parts of the north represented by Beijing,Tianjin and Hebei,coal to power is facing a power shortage.The mid-deep geothermal energy as a renewable clean energy can play a greater role in rural heating.Especially in the Beijing-Tianjin-Hebei region,where geothermal resources are very abundant,geothermal resources are extensively developed and utilized,and heating them can be more efficient and cleaner.In order to solve the problems existing in the middle and deep geothermal water heating in rural areas,this paper takes the Beijing-Tianjin-Hebei region as the representative object of the central and deep geothermal water heating system in the northern rural areas,and conducts the following research.Firstly,it analyzes the heating status and characteristics of Beijing-Tianjin-Hebei area,and secondly,based on this rural status quo,an operational analysis model is established for an actual mid-deep geothermal heating system in Xiong’an County,Hebei Province,and its performance is evaluated and analyzed during operation Problems and energy-saving potential,finally using TRNSYS software to build a simulation model for rural central heating projects,and put forward an optimized control method through simulation.The comparison between before and after optimization shows that the annual operating cost of the heating project after optimization is reduced by about 206,000 yuan,energy consumption is saved by about 73.2 tons of standard coal,and the emission of CO₂ is reduced by about 192.6t.It provides good guidance for the actual project design and operation of medium and deep geothermal water heating systems in rural areas.