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I am currently simulating the same borehole field using two different TRNSYS Types (Type 557 and Type 548) in a system, with the goal of verifying whether both provide consistent results under equivalent conditions.
To ensure comparability, I have configured both models as similarly as possible:
Type 557:
- Number of Boreholes in Series: 1
- Number of Radial Regions: 1
Type 548:
- Number of Fluid Inlets: 1
- Number of Radial Regions: 1
- Inlet to Radial Region: 0
All other parameters as well as the system connections are identical in both cases.
However, I am observing a discrepancy:
- In Type 557, the thermal energy balance closes correctly.
- In Type 548, the thermal balance does not match.
Has anyone experienced similar inconsistencies between these two Types, or could there be something subtle in the configuration of Type 548 that I might be overlooking?
Any insights would be greatly appreciated.
