Abstract：A simulation was performed, which concerned the feasibility of seasonal underground thermal energy storage (UTES) in Tianjin, China. The investigated system consisted of 8 boreholes. In summer, residual solar thermal energy was emitted into the soil surrounding the borehole heat exchangers through which the stored energy was extracted in winter with a ground coupled heat pump (GCHP) to provide a proper heating temperature. A simulation study was performed to study the influence of system operation modes on thermal recovery based on the experimental data of a GCHP system, local meteorological conditions and soil properties in Tianjin. The results indicate a thermal recovery ratio of less than 67% and different temperature distributions under three modes. Finally, an operation mode was suggested based on both lower loss and better thermal recovery in the UTES.
出版日期: 2008-09-05
引用本文:
. Optimization for operating modes based on simulation
of seasonal underground thermal energy storage[J]. Frontiers of Energy and Power Engineering in China - Selected Publications from Chinese Universities, 2008, 2(3): 298-301.
ZHAO Jun, CHEN Yan, LI Xinguo. Optimization for operating modes based on simulation
of seasonal underground thermal energy storage. Front. Energy, 2008, 2(3): 298-301.
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