cyclical gravity greenhouse liquid capillary action energy generator

[igor53]

There are two my articles about Gravitational Power Plants (GRAPP) with using capillary effect: 1) THE GRAVITY AS A NEW RENEWABLE ENERGY SOURCE FOR THE 21st CENTURY, I.Prokhorov, "Chemistry, Energy und the Environment", Proceedings of the Third European Workschop on Chemistry, Energy and the Environment, Estoril, Portugal, 25-28 May1997; 2) THE ENERGY OF GRAVITATIONAL FIELD AND VACUUM, I.Prokhorov, "Raumenergie-Technologien 2000", Vorträge des Kongresses vom 15-16 April 2000, Bregenz, Austria.

Citatioin from first article: "The working liquid lifts within the vertical duct 1 to the upper compartment 2. The bottom of the compartment is covered with a thin layer of capillary structure 3. The heat exchangers 4 contact with this layer and they have a thin coating of the same capillary structure. Therefore, the working liquid penetrates from the layer 3 to the heat exchanger coatings and lifts higher along the latreral side of the heat exchangers. Here, heat is put into the liquid and it evaporates. The produced vapour is compressed by the compessor 5 and enters the heat exchangers. Since the vapour is in the state of saturation, its temperature rises in process of compression. As a result, the temperature head rises, the vapour within the heat exchangers condenses and the released heat evaporates the new portions of the working liquid from the capillary coating. The condensate drops in the duct 6 to lower box 7, where hydroturbine 8 is. The energy acquired by the condensate from the Earth´s gravitational field during its fall is transformed to the energy of the turbine rotation. As the hydroturbine rotation energy and the energy absorbed by the compressors depends on the different parameters, we can select such conditions when the second value will be less than the first one. Hydroturbine turns electrogenerator and it produces the electricity. Part of the electricity energizes the compressors (usual 20-30%), other part goes to customers. Condensate enters to vertical duct 1 and cycle repeats".

By my calculation, efficiency of the GRAPP may be 60-80%, the height of duct 400-600 m, specific capital cost (ratio of the common capital cost to the common power) from 0.5 to 1.5 dollar/watt.