Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid
Parabolic trough collector (PTC) technology is currently the most mature solar technology, which has led to the accumulation of relevant operational experience. The overall performance and efficiency of these plants depends on several components, and the heat transfer fluid (HTF) is one of the most...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-06-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/12/12/2340 |
| _version_ | 1811305410469036032 |
|---|---|
| author | Cristina Prieto Alfonso Rodríguez-Sánchez F. Javier Ruiz-Cabañas Luisa F. Cabeza |
| author_facet | Cristina Prieto Alfonso Rodríguez-Sánchez F. Javier Ruiz-Cabañas Luisa F. Cabeza |
| author_sort | Cristina Prieto |
| collection | DOAJ |
| description | Parabolic trough collector (PTC) technology is currently the most mature solar technology, which has led to the accumulation of relevant operational experience. The overall performance and efficiency of these plants depends on several components, and the heat transfer fluid (HTF) is one of the most important ones. Using molten salts as HTFs has the advantage of being able to work at higher temperatures, but it also has the disadvantage of the potential freezing of the HTF in pipes and components. This paper models and evaluates two methods of freeze recovery, which is needed for this HTF system design: Heat tracing in pipes and components, and impedance melting in the solar field. The model is used to compare the parasitic consumption in three molten salts mixtures, namely Solar Salt, HiTec, and HiTec XL, and the feasibility of this system in a freezing event. After the investigation of each of these subsystems, it was concluded that freeze recovery for a molten salt plant is possible. |
| first_indexed | 2024-04-13T08:24:56Z |
| format | Article |
| id | doaj.art-c4c8704db60f45edade443441896002a |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T08:24:56Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c4c8704db60f45edade443441896002a2022-12-22T02:54:31ZengMDPI AGEnergies1996-10732019-06-011212234010.3390/en12122340en12122340Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer FluidCristina Prieto0Alfonso Rodríguez-Sánchez1F. Javier Ruiz-Cabañas2Luisa F. Cabeza3C/Energía Solar n° 1, Abengoa Energia, 41014 Sevilla, SpainC/Energía Solar n° 1, Abengoa Energia, 41014 Sevilla, SpainC/Energía Solar n° 1, Abengoa Energia, 41014 Sevilla, SpainGREiA Research Group, INSPIRES Research Centre, Universitat de Lleida, Pere de Cabrera s/n, 25001 Lleida, SpainParabolic trough collector (PTC) technology is currently the most mature solar technology, which has led to the accumulation of relevant operational experience. The overall performance and efficiency of these plants depends on several components, and the heat transfer fluid (HTF) is one of the most important ones. Using molten salts as HTFs has the advantage of being able to work at higher temperatures, but it also has the disadvantage of the potential freezing of the HTF in pipes and components. This paper models and evaluates two methods of freeze recovery, which is needed for this HTF system design: Heat tracing in pipes and components, and impedance melting in the solar field. The model is used to compare the parasitic consumption in three molten salts mixtures, namely Solar Salt, HiTec, and HiTec XL, and the feasibility of this system in a freezing event. After the investigation of each of these subsystems, it was concluded that freeze recovery for a molten salt plant is possible.https://www.mdpi.com/1996-1073/12/12/2340parabolic trough collectormolten saltfreeze recoveryheat tracingimpedance melting |
| spellingShingle | Cristina Prieto Alfonso Rodríguez-Sánchez F. Javier Ruiz-Cabañas Luisa F. Cabeza Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid Energies parabolic trough collector molten salt freeze recovery heat tracing impedance melting |
| title | Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid |
| title_full | Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid |
| title_fullStr | Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid |
| title_full_unstemmed | Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid |
| title_short | Feasibility Study of Freeze Recovery Options in Parabolic Trough Collector Plants Working with Molten Salt as Heat Transfer Fluid |
| title_sort | feasibility study of freeze recovery options in parabolic trough collector plants working with molten salt as heat transfer fluid |
| topic | parabolic trough collector molten salt freeze recovery heat tracing impedance melting |
| url | https://www.mdpi.com/1996-1073/12/12/2340 |
| work_keys_str_mv | AT cristinaprieto feasibilitystudyoffreezerecoveryoptionsinparabolictroughcollectorplantsworkingwithmoltensaltasheattransferfluid AT alfonsorodriguezsanchez feasibilitystudyoffreezerecoveryoptionsinparabolictroughcollectorplantsworkingwithmoltensaltasheattransferfluid AT fjavierruizcabanas feasibilitystudyoffreezerecoveryoptionsinparabolictroughcollectorplantsworkingwithmoltensaltasheattransferfluid AT luisafcabeza feasibilitystudyoffreezerecoveryoptionsinparabolictroughcollectorplantsworkingwithmoltensaltasheattransferfluid |