2) Cold water pipe is a great challenge for the future development of OTEC technology. The cold water pipe must be strong enough to guarantee a 30-year service life. The thermal insulation performance of the cold water pipe is also better, so as not to affect the thermal efficiency of the cold sea temperature rise. These problems have not been fully resolved.
3) In order to achieve the commercial scale utilization of ocean temperature difference energy and achieve industrialization, in addition to solving the technical problems, there are other factors that need to be considered. Such as natural conditions and geographical location, only in the sea area near the equator within a certain range, the surface water temperature reaches more than 25 ° C, it is suitable for ocean temperature difference power generation. If the power generation location is too far away from the load center, the transmission cost is bound to increase; Wind speed, sea wave, ocean current and other factors affecting the stability of surface temperature have a direct impact on the overall efficiency of the device.
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