On Sun, Aug 17, 2014 at 10:42 PM, Jojo Iznart <jojoiznar...@gmail.com> wrote:
> One specific question. On the slides, there is provision for C02 > injection into the photobioreactor. What is the source of this CO2, just > atmospheric extraction or sea water extraction? > CO2 is presumed available at current commercial rates -- which means it can be extracted from air. The energetics are that economic. Of course, if you have another source of CO2, such as a fossil fuel power plant, you have to do some processing to render it food-grade but then that is a requirement of all new "clean coal" technologies anyway. > Also, what are the provisions for piping and water circulation of sea > water on the PBRs. This is another area where my existing wave pump might > provide synergy. > The maritime deployment of the PBRs do not require sea water on them but rather under them. The wave action must be kept at a moderate level to avoid damaging the polyfilm -- which is why wave barriers are necessary. Desert deployment of the PBRs require artificially induced standing waves, the energy for which is accounted for in the OPEX.
