Method of preventing the accumulation of micro-organisms in ther

Details Method of preventing the accumulation of micro-organisms in ther Method of preventing the accumulation of micro-organisms in ther

1976-09-29

1977-12-13

Ostrager, Allen M.

Power plants

Utilizing natural heat

Geothermal

165 97, 165105, 60646, 60657, F03G 704

Patent

active

040621898

ABSTRACT:
In an ocean thermal energy conversion system utilizing solar energy stored as heat in tropical waters to generate electricity, the evaporating and condensing functions of the heat exchangers are interchanged in order to prevent the accumulation of micro-organisms on their surfaces. The surfaces of the heat exchangers are also mechanically brushed or scraped so as to remove any thin films of microbial slime. In order to remove additional micro-organisms from the surfaces of the heat exchangers, the flow of hot and cold sea water through each of the heat exchangers is interchanged preferably on a daily basis. Thus, micro-organisms from the warm surface waters that attach themselves to one heat exchanger surface will be destroyed by the cold water that flows through that heat exchanger on the next day. On the other hand, the organisms that live in the cold water at great depths cannot survive the next day's warm water environment which is caused by alternating the flow to the two heat exchangers.

REFERENCES:
patent: 1493368 (1924-05-01), Merz
patent: 2006985 (1935-07-01), Claude
patent: 2637531 (1953-05-01), Davidson
patent: 3312054 (1967-04-01), Anderson
patent: 3896622 (1975-07-01), Daniello
patent: 3975912 (1976-08-01), Green

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