Abstract: A method for conversion of heat in hot flue gases, vaporisation heat in the flue gases being released and converted into an energy carrier which converts from the liquid phase to gas phase.

Abstract: A solar driven turbine loop for electricity production and cooling can advantageously be erected in sunny countries. Solar cells (1) with circulating water are heated up to 120°-160° C. (2). Pumped (3) via the superheater (4) f a medium turbine loop to a medium vaporiser (19) and then in return for reheating. A second branch (27) of the hot water is led to accumulators (30-31) for night operations. Superheated medium vapour is forced through a liquid separator (5) to the medium turbine (7) at high pressure and with high energy content. The turbine drives an electric generator (8), possibly also a heating pump compressor (10). If only the electricity generator is driven, an electrically driven heating pump is installed. The medium vapour expands to a lower pressure and the medium energy content in the turbine and condenses in subsequent condenser (13). This with the aid of cool circulating water (38) which was cooled in an air cooled condenser (37).

Abstract: A method for conversion of heat in hot flue gases, vaporisation heat in the flue gases being released and converted into an energy carrier which converts from the liquid phase to gas phase.

Abstract: A golf putter has a head (1) with a planar striking face (5). The putter head has aiming assisting elements (3, 3', 4 4') which comprise at least two portions (4, 4') each extending rearwardly with respect to the striking face of the putter head such that when seen from above and in a rearward direction, said two portions (4, 4') diverge outwardly. In order to assist increased accuracy when aiming, the two portions are arranged at such an angle to the striking face that the virtual extension (CG, DG) of each portion in a direction forward of the striking face (5) is substantially tangential to a standard golf ball placed at the striking face.