Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar
<p dir="ltr">There is an increasing drive for developing sustainable alternatives for fuels, foods, feeds, and chemicals. Algae can play a significant role in this, however the commercialization of microalgal biomass is still limited for techno-economic reasons. Open raceway ponds ar...
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| مؤلفون آخرون: | , , , , , |
| منشور في: |
2023
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| الموضوعات: | |
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| _version_ | 1864513531033944064 |
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| author | Rihab Rasheed (14153385) |
| author2 | Kira Schipper (17316883) Imma Gifuni (17563110) Hareb Al-Jabri (17092903) Maria J. Barbosa (14023787) Olivier Gonçalves (7828553) Jeremy Pruvost (17370092) |
| author2_role | author author author author author author |
| author_facet | Rihab Rasheed (14153385) Kira Schipper (17316883) Imma Gifuni (17563110) Hareb Al-Jabri (17092903) Maria J. Barbosa (14023787) Olivier Gonçalves (7828553) Jeremy Pruvost (17370092) |
| author_role | author |
| dc.creator.none.fl_str_mv | Rihab Rasheed (14153385) Kira Schipper (17316883) Imma Gifuni (17563110) Hareb Al-Jabri (17092903) Maria J. Barbosa (14023787) Olivier Gonçalves (7828553) Jeremy Pruvost (17370092) |
| dc.date.none.fl_str_mv | 2023-12-01T00:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1016/j.seta.2023.103497 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Thermal_regulation_of_algae_cultures_in_raceway_ponds_utilizing_ground_heat_Improving_techno-economic_feasibility_and_process_sustainability_of_large-scale_algae_production_in_Qatar/24921516 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Economics Applied economics Engineering Environmental engineering Environmental sciences Environmental management Microalgae Sustainable Production Thermal Regulation Techno-Economics Energy efficiency |
| dc.title.none.fl_str_mv | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">There is an increasing drive for developing sustainable alternatives for fuels, foods, feeds, and chemicals. Algae can play a significant role in this, however the commercialization of microalgal biomass is still limited for techno-economic reasons. Open raceway ponds are some of the most competitive systems to produce algae on a large scale, however productivities and techno-economics can be unfavorable when temperature fluctuations cause sub-optimal conditions. Maintaining temperatures nearer to strain-optima through thermal regulation has been shown to increase productivities, however the techno-economic impact of implementation has yet to be addressed. In this study the effect of ground-heat exchanger implementation for thermal regulation of open raceway ponds was evaluated in terms of productivity, production costs and process sustainability. Multiple thermal regulation scenarios were evaluated for two microalgae strains from Qatar, Pichochlorum maculatum and Nannochloris atomus, and it was projected that thermal regulation could increase annual biomass yields up to 10.0 and 69.6 %, respectively. Biomass production costs were found to be reduced as much as 29.5 %, depending on strain and regulation scenario. Furthermore, a sensitivity analysis identified further means by which energy requirements and production costs could be reduced by 18.9 and 67.2 %, respectively, reaching a biomass production cost of 6.21 €·kg<sup>−1</sup>.</p><h2>Other Information</h2><p dir="ltr">Published in: Sustainable Energy Technologies and Assessments<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.seta.2023.103497" target="_blank">https://dx.doi.org/10.1016/j.seta.2023.103497</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_55cd41f19dbf3bb6678010e17dc93d0b |
| identifier_str_mv | 10.1016/j.seta.2023.103497 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/24921516 |
| publishDate | 2023 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in QatarRihab Rasheed (14153385)Kira Schipper (17316883)Imma Gifuni (17563110)Hareb Al-Jabri (17092903)Maria J. Barbosa (14023787)Olivier Gonçalves (7828553)Jeremy Pruvost (17370092)EconomicsApplied economicsEngineeringEnvironmental engineeringEnvironmental sciencesEnvironmental managementMicroalgaeSustainable ProductionThermal RegulationTechno-EconomicsEnergy efficiency<p dir="ltr">There is an increasing drive for developing sustainable alternatives for fuels, foods, feeds, and chemicals. Algae can play a significant role in this, however the commercialization of microalgal biomass is still limited for techno-economic reasons. Open raceway ponds are some of the most competitive systems to produce algae on a large scale, however productivities and techno-economics can be unfavorable when temperature fluctuations cause sub-optimal conditions. Maintaining temperatures nearer to strain-optima through thermal regulation has been shown to increase productivities, however the techno-economic impact of implementation has yet to be addressed. In this study the effect of ground-heat exchanger implementation for thermal regulation of open raceway ponds was evaluated in terms of productivity, production costs and process sustainability. Multiple thermal regulation scenarios were evaluated for two microalgae strains from Qatar, Pichochlorum maculatum and Nannochloris atomus, and it was projected that thermal regulation could increase annual biomass yields up to 10.0 and 69.6 %, respectively. Biomass production costs were found to be reduced as much as 29.5 %, depending on strain and regulation scenario. Furthermore, a sensitivity analysis identified further means by which energy requirements and production costs could be reduced by 18.9 and 67.2 %, respectively, reaching a biomass production cost of 6.21 €·kg<sup>−1</sup>.</p><h2>Other Information</h2><p dir="ltr">Published in: Sustainable Energy Technologies and Assessments<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.seta.2023.103497" target="_blank">https://dx.doi.org/10.1016/j.seta.2023.103497</a></p>2023-12-01T00:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.seta.2023.103497https://figshare.com/articles/journal_contribution/Thermal_regulation_of_algae_cultures_in_raceway_ponds_utilizing_ground_heat_Improving_techno-economic_feasibility_and_process_sustainability_of_large-scale_algae_production_in_Qatar/24921516CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/249215162023-12-01T00:00:00Z |
| spellingShingle | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar Rihab Rasheed (14153385) Economics Applied economics Engineering Environmental engineering Environmental sciences Environmental management Microalgae Sustainable Production Thermal Regulation Techno-Economics Energy efficiency |
| status_str | publishedVersion |
| title | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| title_full | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| title_fullStr | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| title_full_unstemmed | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| title_short | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| title_sort | Thermal regulation of algae cultures in raceway ponds utilizing ground heat: Improving techno-economic feasibility and process sustainability of large-scale algae production in Qatar |
| topic | Economics Applied economics Engineering Environmental engineering Environmental sciences Environmental management Microalgae Sustainable Production Thermal Regulation Techno-Economics Energy efficiency |