Abstract:
The electrical power, carbon dioxide and heating requirements of an enclosed plant cultivation system and method, for example, a greenhouse and greenhouse plant cultivation method, are provided by a solid oxide fuel cell.
Abstract:
Tubular ceramic structures of non-circular cross section, e.g., anode components of tubular fuel cells of non-circular cross section, are manufactured by applying ceramic-forming composition to the external non-circular surface of the heat shrinkable polymeric tubular mandrel component of a rotating mandrel-spindle assembly, removing the spindle from said assembly after a predetermined thickness of tubular ceramic structure of non-circular cross section has been built up on the mandrel and thereafter heat shrinking the mandrel to cause the mandrel to separate from the tubular ceramic structure of non-circular cross section.