{"id":413,"date":"2007-02-25T11:04:00","date_gmt":"2007-02-25T11:04:00","guid":{"rendered":"http:\/\/oilgae.com\/blog\/?p=413"},"modified":"2007-02-25T11:04:00","modified_gmt":"2007-02-25T11:04:00","slug":"comparison-of-compact-photobioreactors","status":"publish","type":"post","link":"http:\/\/www.oilgae.com\/blog\/2007\/02\/comparison-of-compact-photobioreactors.html","title":{"rendered":"Comparison of compact photobioreactors for large-scale monoculture of microalgae"},"content":{"rendered":"

You are at: Oilgae Blog<\/a><\/b>. See the complete list of Oilgae Blog articles<\/a><\/b>.<\/p>\n

Do you know that oil derived from algae<\/b> is an exciting renewable fuel possibility? – see Oilgae<\/a><\/b> for more.<\/p>\n

Comparative evaluation of compact photobioreactors for large-scale monoculture of microalgae<\/strong><\/p>\n

Asterio Sa\u00b4nchez Miro\u00b4n, Antonio Contreras Go\u00b4mez,
Francisco Garc\u00fd\u00b4a Camacho, Emilio Molina Grima, Yusuf Chisti *
Department of Chemical Engineering, Uni6ersity of Almer\u00fd\u00b4a, E- 04071 Almer\u00fd\u00b4a, Spain<\/p>\n

Journal of Biotechnology, 70, (1999)<\/p>\n

Received 27 October 1998; received in revised form 17 November 1998; accepted 22 December 1998<\/p>\n

Abstract<\/strong><\/p>\n

Engineering analyses combined with experimental observations in horizontal tubular photobioreactors and vertical bubble columns are used to demonstrate the potential of pneumatically mixed vertical devices for large-scale outdoor culture of photosynthetic microorganisms. Whereas the horizontal tubular systems have been extensively investigated,
their scalability is limited. Horizontal tubular photobioreactors and vertical bubble column type units differ substantially in many ways, particularly with respect to the surface\u2013to\u2013volume ratio, the amount of gas in dispersion, the gas\u2013liquid mass transfer characteristics, the nature of the fluid movement and the internal irradiance levels. As illustrated for eicosapentaenoic acid production from the microalga Phaeodactylum tricornutum, a realistic commercial process cannot rely on horizontal tubular photobioreactor technology. In bubble columns, presence of gas bubbles generally enhances internal irradiance when the Sun is low on the horizon. Near solar noon, the bubbles diminish the internal column irradiance relative to the ungassed state. The optimal dimensions of vertical column photobioreactors are about 0.2 m diameter and 4 m column height. Parallel east\u2013west oriented rows of such columns located at 36.8\u00b0N latitude need an optimal inter-row spacing of about 3.5 m. In vertical columns the biomass productivity varies substantially during the year: the peak productivity during summer may be several times greater than in the winter. This seasonal variation occurs also in horizontal tubular units, but is much less pronounced. Under identical conditions, the volumetric biomass productivity in a bubble column is 60% of that in a 0.06 m diameter horizontal tubular loop, but there is substantial scope for raising this value.<\/p>\n

Keywords : Microalgae; Photobioreactors; Scale-up; Photosynthetic culture; Eicosapentaenoic acid; Phaeodactylum tricornutum<\/p>\n

Full report here<\/a> (PDF)<\/p>\n

Nature gave us<\/a> oil from algae; perhaps we should try<\/a> Nature’s way again<\/span><\/b><\/p>\n

Oilgae – Oil & Biodiesel from Algae<\/a><\/b>
Oilgae Blog<\/a><\/b>; The complete list of Oilgae Blog articles<\/a><\/b>.
algOS – Biodiesel from Algae Open Source<\/a><\/b><\/p>\n

About Oilgae – Oilgae – Oil & Biodiesel from Algae<\/a><\/b> has a focus on biodiesel production from algae while also discussing alternative energy in general. Algae present an exciting possibility as a feedstock for biodiesel, and when you realise that oil was originally formed from algae – among other related plants – you think “Hey! Why not oil again from algae!”<\/p>\n","protected":false},"excerpt":{"rendered":"

You are at: Oilgae Blog. See the complete list of Oilgae Blog articles. Do you know that oil derived from algae is an exciting renewable fuel possibility? – see Oilgae for more. Comparative evaluation of compact photobioreactors for large-scale monoculture of microalgae Asterio Sa\u00b4nchez Miro\u00b4n, Antonio Contreras Go\u00b4mez,Francisco Garc\u00fd\u00b4a Camacho, Emilio Molina Grima, Yusuf Chisti […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,12],"tags":[],"class_list":["post-413","post","type-post","status-publish","format-standard","hentry","category-algae-cultivation","category-algae-photobioreactor"],"_links":{"self":[{"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/posts\/413","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/comments?post=413"}],"version-history":[{"count":0,"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/posts\/413\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/media?parent=413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/categories?post=413"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.oilgae.com\/blog\/wp-json\/wp\/v2\/tags?post=413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}