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Energy Loss Assessment for Geothermal Development of High-Temperature Rock Mass in Ocean Plate Based on Particle Swarm Optimization and Interior Point Hybrid Optimization

ABSTRACT Zhang, Y., 2019. Energy loss assessment for geothermal development of high-temperature rock mass in ocean plate based on particle swarm optimization and interior point hybrid optimization. In: Hoang, A.T. and Aqeel Ashraf, M. (eds.), Research, Monitoring, and Engineering of Coastal, Port, and Marine Systems. Journal of Coastal Research, Special Issue No. 97, pp. 170–176. In the process of geothermal development of high-temperature rock mass in ocean plate, there are three coupling effects of seepage field, stress field and temperature field. Combining with the thermal fracture, temperature field variation and heat convection exchange law of high-temperature rock mass around reservoir, a geothermal-fluid-solid coupling damage model of high-temperature rock mass is established, and the energy loss in the coupling process is calculated by using the model. A mathematical model of energy loss in the process of heat energy acquisition is constructed by studying the internal structure of collector. Based on the study of geothermal development and application process of high temperature rock mass and the above model, an energy loss assessment model for geothermal development of high temperature rock mass in Ocean plate is constructed, and optimized by particle swarm optimization and interior point hybrid optimization algorithm. Particle swarm optimization and interior point penalty constraints are used to reduce the computational complexity of the assessment process and improve the accuracy of energy loss assessment results. The feasibility of the proposed method is verified by comparing the experimental results with the current methods and expert assessment results.