Power generating system based on supercritical carbon dioxide

Abstract

The invention relates to the technical field of power generating systems and methods, in particular to a power generating system based on supercritical carbon dioxide, which comprises a compressor, a heat collector, a carbon dioxide turbine, a generator and a cooling device. An outlet of the compressor is connected with an inlet of the heat collector, an outlet of the heat collector is connected with an inlet of the carbon dioxide turbine, an output end of the carbon dioxide turbine is connected with an input end of the generator, an outlet of the carbon dioxide turbine is connected with an inlet of the cooling device, an outlet of the cooling device is connected with an inlet of the compressor, and accordingly a loop is formed. Heat is absorbed from the outside by the supercritical carbon dioxide in the closed loop to carry out heat circulation, and accordingly the power generating system not only can be used for generating power, but also can provide air conditioning refrigeration and hot water for users. Compared with a traditional power generation mode by the aid of steam, the power generating system has the advantages that power generation efficiency is higher than that of the traditional power generation mode by the aid of steam by 10% to 20%, the system is exquisite and is compact in structure and free of environmental pollution, and equipment cost is low.

Description

technical field [0001] The invention relates to the technical field of power generation systems and methods, in particular to a power generation system based on supercritical carbon dioxide. Background technique [0002] At present, energy problems plague countries all over the world, and it is imminent to find efficient and environmentally friendly power generation methods. There are roughly several types of power generation in the world: hydropower, thermal power, tidal power, atomic power, wind power and solar power. Solar power generation is relatively economical, but due to the huge collection device and the difficulty of manufacturing technology, it cannot be formed on a large scale to provide people's daily needs. Nuclear power generation is also relatively economical, but cannot be adopted quickly due to dreaded safety concerns. Thermal power generation occupies the first place in the world's power generation, because it is a device that uses chemical energy to con...

AI Technical Summary

Problems solved by technology

Although the existing hydroelectric power generation device belongs to the utilization of renewable energy, to build a complete set of devices, it is necessary to block the river (river) and build dams, build reservoirs, move people, build diversion channels, ship locks and other supporting projects, and the project cost is high. so amazing that some economically poor countries cannot afford to build such projects

In addition, this kind of unit requires high manufacturing technology, high cost, serious wear of the high-speed impeller during operation, and high maintenance costs, so the actual operating cost is very high.

More importantly, this kind of hydroelectric power generation device uses the drop of flowing water (potential energy of the water body) to convert energy. On a river, it is not possible to build too many of the same device

The development prospect of the wind power industry is very broad, because wind power has no fuel problem, and will not produce radiation or air pollution, but its efficiency is low, the cost is expensive, the technology needs to be improved, and the management is not perfect

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