District Energy Systems: soil_thermal_conductivity
District energy systems design reference data — chiller technology COP ranges, pipe insulation thermal properties and moisture performance, soil thermal conductivity, buried pre-insulated pipe heat loss, piping material comparisons, direct vs. indirect interconnection trade-offs, heating system conversion suitability, and district energy flow meter types per ASHRAE Handbook HVAC Systems and Equipment 2020 Chapter 12
| category | item key | description | unit | value max | value text |
|---|---|---|---|---|---|
| soil_thermal_conductivity | High_Moisture_Clay | Soil thermal conductivity — clay high moisture (>20% dry basis) | Btu/h-ft-degF | 1.25 | 1.25 Btu/h-ft-degF |
| soil_thermal_conductivity | High_Moisture_Sand | Soil thermal conductivity — sand high moisture (>20% dry basis) | Btu/h-ft-degF | 1.25 | 1.25 Btu/h-ft-degF |
| soil_thermal_conductivity | High_Moisture_Silt | Soil thermal conductivity — silt high moisture (>20% dry basis) | Btu/h-ft-degF | 1.25 | 1.25 Btu/h-ft-degF |
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