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
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 competitiv...
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| مؤلفون آخرون: | , , , , , |
| التنسيق: | article |
| منشور في: |
2023
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| الموضوعات: | |
| الوصول للمادة أونلاين: | http://dx.doi.org/10.1016/j.seta.2023.103497 https://www.sciencedirect.com/science/article/pii/S2213138823004903 http://hdl.handle.net/10576/48454 |
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| _version_ | 1857415085184516096 |
|---|---|
| author | Rihab, Rasheed |
| author2 | Schipper, Kira Gifuni, Imma Al-Jabri, Hareb Barbosa, Maria J. Gonçalves, Olivier Pruvost, Jeremy |
| author2_role | author author author author author author |
| author_facet | Rihab, Rasheed Schipper, Kira Gifuni, Imma Al-Jabri, Hareb Barbosa, Maria J. Gonçalves, Olivier Pruvost, Jeremy |
| author_role | author |
| dc.creator.none.fl_str_mv | Rihab, Rasheed Schipper, Kira Gifuni, Imma Al-Jabri, Hareb Barbosa, Maria J. Gonçalves, Olivier Pruvost, Jeremy |
| dc.date.none.fl_str_mv | 2023-10-12T04:33:02Z 2023-12-31 |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://dx.doi.org/10.1016/j.seta.2023.103497 22131388 https://www.sciencedirect.com/science/article/pii/S2213138823004903 http://hdl.handle.net/10576/48454 60 2213-1396 |
| dc.language.none.fl_str_mv | en |
| dc.publisher.none.fl_str_mv | Elsevier |
| dc.rights.none.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | 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 | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | 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 maculatumandNannochloris 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−1. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | qu_8a6827fad09459e3194c382cc95d44b2 |
| identifier_str_mv | 22131388 60 2213-1396 |
| language_invalid_str_mv | en |
| network_acronym_str | qu |
| network_name_str | Qatar University repository |
| oai_identifier_str | oai:qspace.qu.edu.qa:10576/48454 |
| publishDate | 2023 |
| publisher.none.fl_str_mv | Elsevier |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | http://creativecommons.org/licenses/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, RasheedSchipper, KiraGifuni, ImmaAl-Jabri, HarebBarbosa, Maria J.Gonçalves, OlivierPruvost, JeremyMicroalgaeSustainable ProductionThermal RegulationTechno-EconomicsEnergy efficiencyThere 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 maculatumandNannochloris 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−1.Elsevier2023-10-12T04:33:02Z2023-12-31Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1016/j.seta.2023.10349722131388https://www.sciencedirect.com/science/article/pii/S2213138823004903http://hdl.handle.net/10576/48454602213-1396enhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:qspace.qu.edu.qa:10576/484542024-07-23T10:58:29Z |
| 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 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 | Microalgae Sustainable Production Thermal Regulation Techno-Economics Energy efficiency |
| url | http://dx.doi.org/10.1016/j.seta.2023.103497 https://www.sciencedirect.com/science/article/pii/S2213138823004903 http://hdl.handle.net/10576/48454 |