Research Article
Numerical Research and Parametric Study on the Thermal Performance of a Vertical Earth-to-Air Heat Exchanger System
Table 2
Basic physical parameter value.
| | Parameters | Unit | Value |
| | Duct material | W m−1 K−1 | 0.42 | | Insulation material | W m−1 K−1 | 0.024 | | Soil thermal conductivity | W m−1 K−1 | 1.46 | | Soil temperature diffusivity | m2/h | 0.00318 | | Soil specific heat capacity | J kg−1 K−1 | 1260 | | Soil density | kg m−3 | 1312 | | Air velocity | m/s | 3 |
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