Solar energy auxiliary ocean thermoelectric power generation system

Abstract

The invention relates to a solar energy auxiliary ocean thermoelectric power generation system. The solar energy auxiliary ocean thermoelectric power generation system is characterized by comprising asolar energy auxiliary heating module, an OTEC power generation module and a PLC energy management module. The OTEC power generation module adopts an organic working medium with the low boiling pointas a circular working medium, and adopts ocean surface layer warm seawater as a heat source for preheating the organic working medium, and solar energy of the solar energy auxiliary heating module isadopted as a supplementary heat source for secondarily heating the organic working medium. Cold ocean water at the 900-1,100-meter ocean deep layer is adopted as a cold source, conversion of heat into power is achieved through an organic Rankine cycle, and overheated working medium gas enters a turbine to push an impeller to rotate, and an electricity generator is driven to generate electricity.The PLC energy management module achieves energy scheduling and operation control on the solar energy auxiliary heating module and the OTEC power generation module. Due to the ocean thermoelectric power generation system adopting solar energy light heat as an auxiliary heat source, the power generation efficiency of the system is greatly improved, and the ocean thermoelectric power generation system can be applied and popularized conveniently.

Description

technical field [0001] The invention relates to the fields of mechanical engineering and new energy, in particular to a solar-assisted ocean temperature difference power generation system. Background technique [0002] Ocean temperature difference energy refers to the thermal energy stored in the temperature difference between the surface seawater and deep seawater, which can realize thermal cycle and generate electricity. The South my country Sea is located in the south of the Tropic of Cancer. It has a tropical climate with strong solar radiation. The surface water temperature is above 25°C throughout the year, while the deep water temperature below 1000m is below 5°C, with a temperature difference of 20-25°C. resource. [0003] Ocean temperature difference energy has attracted much attention in recent years due to its large resource storage, clean and pollution-free characteristics among renewable energy sources. Ocean temperature difference power generation (OTEC) is a ...

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Problems solved by technology

[0004] According to reports, the 50kW ocean thermal energy power station in Kume Island, Okinawa Prefecture, Japan successfully generated electricity for the first time in March 2013; in August 2015, the 100kW ocean thermal energy power generation system in Hawaii Island was successfully connected to the grid for power generation, and ocean thermal energy power generation was used as a new energy source The main way of power generation; French Reunion Island will also deliver a 100-150MW high-power OTEC power station group in 2025; China’s State Oceanic In order to improve the thermal efficiency of ocean thermoelectric power generation, it is currently in the research and development stage, and there are no relevant reports considering the introduction of solar-assisted ocean thermoelectric power generation systems

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