SEGJ Technical Conference

analysing the heat-exchange performance of horizontal two-layered ground heat exchangers using numerical simulation

Abstract An initial cost is high and the spread is not advanced to the underground heat use heat changers system though the energy efficiency is high. To reduce an initial cost as one of the solutions, it is enumerated to set up heat collection pipes and heat radiation pipes in the vicinity of surface. Then, the horizontal two-layered heat exchangers system that enables the promotion of farm products in the greenhouse cultivation is designed, and the effectiveness is examined. The model by whom the depth of heat collection pipes and heat radiation pipes is changed and the model by whom insulation is assumed are constructed by setting up the house for agriculture that introduces the horizontal two-layered heat exchangers system, and using the simulation program "STARS", and the comparison and the examination are done.