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Power generation method and electric power generation method

A production method and power technology, which can be used in machines/engines, steam engine installations, gas turbine installations, etc., can solve problems such as low energy utilization efficiency, and achieve the effects of improving energy conversion efficiency, improving energy conversion efficiency, and reducing emissions.

Inactive Publication Date: 2017-03-15
XIAMEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a coupling of the above two circulation systems, which not only overcomes the problem of low energy utilization efficiency of the traditional single circulation system, but also achieves high efficiency, low carbon emissions, flexible scale, and suitable power for joint production and joint supply. Generation method and power generation method

Method used

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Embodiment 1

[0018] Embodiment one, such as figure 1 As shown, a triple compound power system fuel cell-gas turbine-organic Rankine cycle coupling method configured to facilitate efficient utilization of waste heat recovery, including a fuel cell-gas turbine hybrid cycle system configured to generate hybrid power, Including: a fuel cell and gas turbine (SOFC-GT) circulation loop and an organic Rankine cycle (ORC) loop, the fuel cell and gas turbine (SOFC-GT) circulation loop includes a fuel cell 11, and the fuel cell 11 is a solid oxide fuel cell, Solid Oxide Fuel Cell (SOFC) is suitable for efficiently converting chemical energy stored in fuel and oxidant into electrical energy at medium and high temperatures. Fuel cell 11 comprises positive pole and negative pole in order to carry out electrochemical reaction, combustible gas and air pass into fuel cell 11 to react by fuel cell 11 positive pole and negative pole respectively, combustible gas can be hydrogen, carbon monoxide, methane, coa...

Embodiment 2

[0020] Embodiment two, such as figure 2 As shown, a triple compound power system SOFC-Gas Turbine-ORC coupling method constructed to facilitate efficient utilization of waste heat recovery, the method includes SOFC and gas turbine cycle, and ORC, The system includes a Solid Oxide Fuel Cell and Gas Turbine (SOFC-GT) loop, and an Organic Rankine Cycle (ORC) loop. The solid oxide fuel cell and gas turbine (SOFC-GT) circulation loop includes a first preheater 15, a compressor 17, a solid oxide fuel cell 11, a combustor 12, a first turbine 13 and a first heat exchanger 14, The solid oxide fuel cell and gas turbine (SOFC-GT) circulation loop is combined with the Organic Rankine Cycle (ORC) loop through the first heat exchanger 14 and preheater 15, and the solid oxide fuel cell 11 is suitable for storing The chemical energy in the fuel and oxidant is efficiently converted into electrical energy, and the compressor 17 presses air into the positive electrode of the solid oxide fuel c...

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Abstract

The invention discloses a power generation method and an electric power generation method. By means of the power generation method and the electric power generation method, the energy conversion efficiency is remarkably improved, pollutant discharge is reduced, due to the fact that high-temperature exhaust of a fuel battery and a combustion gas turbine circulation loop still has a quite high temperature grade and belongs to medium and low temperature waste heat, the organic Rankine cycle is adopted for recycling the medium and low temperature waste heat, the energy conversion efficiency can be greatly improved, and emission of pollutants to the environment is reduced. Besides, the power generation method and the electric power generation method achieve comprehensive gradient conversion and efficient and clean utilization of energy through system integration and procedure improvement.

Description

technical field [0001] The invention relates to the field of power engineering, in particular to a power generation method and an electric power generation method. Background technique [0002] A series of emerging distributed energy technologies represented by fuel cells, organic Rankine cycle (ORC) and combined heat and power have gradually become the focus of attention at home and abroad. Among them, solid oxide fuel cells-gas turbines (solid oxide fuel cell-gas turbine (SOFC-GT) hybrid cycle is favored because of its cleanliness, diverse fuels, and flexible power generation scale. However, the energy utilization efficiency of a single fuel cell-gas turbine hybrid cycle is limited by the exhaust steam temperature. Therefore, the efficient utilization of heat cannot be achieved, and the Organic Rankine Cycle (ORC), as an important way to recover low-grade heat energy, has also been widely used in industrial waste heat power generation and low-temperature power generation f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01K23/10F01K25/08F02C3/22
CPCF01K23/10F01K25/08F02C3/22
Inventor 赵英汝刘浩仑张诗琪张振坤朱兴仪王书棠刘美丽燕旭张彬彬
Owner XIAMEN UNIV
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