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Abstract

The invention relates to a photobioreactor system for a phototrophic microorganism, and culture medium therefor, comprising a reactor chamber and a thermal system. The thermal system includes a convection chamber in thermal contact with the reactor chamber and having a first port and a second port; a heat storage reservoir having a first region containing a first volume of heat exchange liquid at a first temperature and a second region containing a second volume of heat exchange liquid at a second temperature; and a flow system configured for (1) flowing heat exchange liquid from the heat storage reservoir into the first port and through the convection chamber and flowing heat exchange liquid from the convection chamber out of the second port into the heat storage reservoir; and (2) flowing heat exchange liquid from the heat storage reservoir into the second port and through the convection chamber and flowing heat exchange liquid from the convection chamber out of the first port into the heat storage reservoir. Methods of using said photobioreactor to manage the temperature of the culture medium in the photobioreactor and to manage the amount of heat stored in the reservoir are also described.

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First Claim