Economic model design of geothermal heating systems

Through comparing the characteristics of geothermal heating systems and conventional heating systems, proposes the main factors impacting the economic index of geothermal heating systems—the peak load ratio and the discharge temperature of geothermal tail water, and analyses their effects. Using MATLAB polynomial regression tools to treat the value of heating degree-days, obtains the mathematical model for further calculation of fuel consumption to ultimately acquire annual operating cost of the geothermal heating system. Optimizes the system using annual cost as optimization index.