| Author Name | Affiliation | | ZHANG Wen-yong | School of Municipal & Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
Municipal Planning Departement,Beijing Municipal Institute of City Planning & Design,Beijing 100045,China | | ZHENG Mao-yu | School of Municipal & Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China | | WANG Xiao | School of Municipal & Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China |
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| Abstract: |
| To analyze the characteristics of solar seasonal soil thermal storage in a solar-ground coupled heat pump system (SGCHPS) in severe cold area,the software FLUENT was used to establish the three-dimensional unsteady state fluid-solid coupling mathematical model of multi-well ground heat exchanger (MWGHE).The User-Defined Functions (UDF) of solar collector and plate heat exchanger were written and dynamically loaded into the model of MWGHE as the boundary conditions.In this way,the dynamic simulation of solar seasonal soil thermal storage was realized.The comparison of simulative and experimental results showed that the overall variation trend of simulative and experimental values achieves a good agreement with time;the relative errors of simulated parameters are all in the allowable range.Therefore,it can be obtained that the models established can be applied in the investigation of performance of solar seasonal soil thermal storage.At the same time,it provides a theoretical basis for the study of heating in SGCHPS and soil heat balance analysis after long-time thermal storage and extraction. |
| Key words: solar energy seasonal soil thermal storage FLUENT mathematical model experimental verification |
| DOI：10.11916/j.issn.1005-9113.2011.04.008 |
| Clc Number:TK512 |
| Fund: |
