Paper Conference

Proceedings of Building Simulation 2011: 12th Conference of IBPSA


Modeling Of Heat Transfer In Geothermal Heat Exchanger Using GHX Zonal Model Method

Moon Jung Choi, Seung Hyo Baek, Myoung Souk Yeo

Abstract: Two types of Ground Heat Exchanger (GHX) zonal models are suggested for a new analysis method that can reduce analysis time and reflecting heat transfer mechanisms occurring on the GHX section; using a circular pattern (Circular) and replacing the circle with a square shape (Square). The GHX zonal model is suggested to analyze a 2-dimensional unsteadystate thermal performance involving heat interference between pipes in a borehole. Comparing results from the simulations and PHYSIBEL program (BISTRA), the temperature distribution of GHX zonal models is similar to that of BISTRA, therefore the analysis grid of the GHX zonal model is regarded as appropriate.
Pages: 1556 - 1562