Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup>
Thermal energy of flue gases (FG) dissipating from industrial facilities into the environment, constitute around 20% of the total dissipated thermal energy. Being part of the FG, water vapour carries thermal energy out of the system in the form of the latent heat, which can be recovered by condensat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/9/1585 |
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| author | Nataliia Fedorova Pegah Aziziyanesfahani Vojislav Jovicic Ana Zbogar-Rasic Muhammad Jehanzaib Khan Antonio Delgado |
| author_facet | Nataliia Fedorova Pegah Aziziyanesfahani Vojislav Jovicic Ana Zbogar-Rasic Muhammad Jehanzaib Khan Antonio Delgado |
| author_sort | Nataliia Fedorova |
| collection | DOAJ |
| description | Thermal energy of flue gases (FG) dissipating from industrial facilities into the environment, constitute around 20% of the total dissipated thermal energy. Being part of the FG, water vapour carries thermal energy out of the system in the form of the latent heat, which can be recovered by condensation, thus increasing the overall efficiency of an industrial process. The limiting factor in this case is the low dew point temperature (usually 40−60 °C) of the water vapour in the FG. The increase of the dew point temperature can be achieved by increasing the water content or pressure. Taking these measures as a basis, the presented work investigated the following concepts for increasing the dew point temperature: humidification of the flue gas using water, humidification using steam, compression of the FG and usage of the steam ejector. Modelling of these concepts was performed using the commercial software Aspen<sup>®</sup>. The humidification of the FG using water resulted in the negligible increase in the dew point (3 °C). Using steam humidification the temperatures of up to 92 °C were reached, while the use of steam ejector led to few degrees higher dew point temperatures. However, both concepts proved to be energy demanding, due to the energy requirements for the steam generation. The FG compression enabled the achievement of a 97 °C dew point temperature, being both energy-efficient and exhibiting the lowest energy cost. |
| first_indexed | 2024-04-14T03:19:12Z |
| format | Article |
| id | doaj.art-ad69af16670d48a68767a8b3734de909 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T03:19:12Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-ad69af16670d48a68767a8b3734de9092022-12-22T02:15:21ZengMDPI AGEnergies1996-10732019-04-01129158510.3390/en12091585en12091585Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup>Nataliia Fedorova0Pegah Aziziyanesfahani1Vojislav Jovicic2Ana Zbogar-Rasic3Muhammad Jehanzaib Khan4Antonio Delgado5Institute of Fluid Mechanics (LSTM), Friedrich-Alexander University (FAU), 91058 Erlangen, GermanyInstitute of Fluid Mechanics (LSTM), Friedrich-Alexander University (FAU), 91058 Erlangen, GermanyInstitute of Fluid Mechanics (LSTM), Friedrich-Alexander University (FAU), 91058 Erlangen, GermanyInstitute of Fluid Mechanics (LSTM), Friedrich-Alexander University (FAU), 91058 Erlangen, GermanyInstitute of Fluid Mechanics (LSTM), Friedrich-Alexander University (FAU), 91058 Erlangen, GermanyInstitute of Fluid Mechanics (LSTM), Friedrich-Alexander University (FAU), 91058 Erlangen, GermanyThermal energy of flue gases (FG) dissipating from industrial facilities into the environment, constitute around 20% of the total dissipated thermal energy. Being part of the FG, water vapour carries thermal energy out of the system in the form of the latent heat, which can be recovered by condensation, thus increasing the overall efficiency of an industrial process. The limiting factor in this case is the low dew point temperature (usually 40−60 °C) of the water vapour in the FG. The increase of the dew point temperature can be achieved by increasing the water content or pressure. Taking these measures as a basis, the presented work investigated the following concepts for increasing the dew point temperature: humidification of the flue gas using water, humidification using steam, compression of the FG and usage of the steam ejector. Modelling of these concepts was performed using the commercial software Aspen<sup>®</sup>. The humidification of the FG using water resulted in the negligible increase in the dew point (3 °C). Using steam humidification the temperatures of up to 92 °C were reached, while the use of steam ejector led to few degrees higher dew point temperatures. However, both concepts proved to be energy demanding, due to the energy requirements for the steam generation. The FG compression enabled the achievement of a 97 °C dew point temperature, being both energy-efficient and exhibiting the lowest energy cost.https://www.mdpi.com/1996-1073/12/9/1585thermal energy recoveryflue gasdew point temperaturecondensationAspen<sup>®</sup> |
| spellingShingle | Nataliia Fedorova Pegah Aziziyanesfahani Vojislav Jovicic Ana Zbogar-Rasic Muhammad Jehanzaib Khan Antonio Delgado Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup> Energies thermal energy recovery flue gas dew point temperature condensation Aspen<sup>®</sup> |
| title | Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup> |
| title_full | Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup> |
| title_fullStr | Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup> |
| title_full_unstemmed | Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup> |
| title_short | Investigation of the Concepts to Increase the Dew Point Temperature for Thermal Energy Recovery from Flue Gas, Using Aspen<sup>®</sup> |
| title_sort | investigation of the concepts to increase the dew point temperature for thermal energy recovery from flue gas using aspen sup r sup |
| topic | thermal energy recovery flue gas dew point temperature condensation Aspen<sup>®</sup> |
| url | https://www.mdpi.com/1996-1073/12/9/1585 |
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