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EnglishThe aim of this work is the development of three different models to calculate the enthalpy content of a stratified water thermal storage tank from discrete temperature measurements. The difficulty related to enthalpy value evaluation comes from the discrete temperature measurement along the storage (often only 2 to 4 temperatures along the volume height are known): the actual temperature distribution between two subsequent probes is unknown. Three different models based on three different approaches were developed and compared, basing on experimental data. A first model calculates the enthalpy value considering the measured temperatures and the thermal power difference between generation and consumption. The second model uses a mathematical pre-defined temperature shape fitted considering real-time experimental data. The latter model is based on a 1-D physical approach using a multi-nodal method. All the models were validated against the experimental data obtained from the distributed generation laboratory installed in Savona, Italy.
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| Titolo: | State of charge estimation of thermal storages for distributed generation systems |
| Autori: | |
| Data di pubblicazione: | 2014 |
| Handle: | http://hdl.handle.net/11567/716779 |
| Appare nelle tipologie: | 04.01 - Contributo in atti di convegno |
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http://hdl.handle.net/11567/716779
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