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CO2 near zero emission medium-low temperature solar heat energy and fossil energy complementary system and flow

A near-zero emission, fossil energy technology, applied in solar thermal power generation, mechanical power generated by solar energy, charging system, etc., can solve problems such as ignoring the cooling effect of turbine blades, achieve good development prospects, enhance thermal performance, and The effect of mass flow increase

Inactive Publication Date: 2012-07-25
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

In its case study, the proportion of solar heat input was 18%, and the net efficiency of solar power generation and system heat efficiency reached 35% and 60.7%, respectively, but the calculation ignored the cooling effect of turbine blades

Method used

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  • CO2 near zero emission medium-low temperature solar heat energy and fossil energy complementary system and flow
  • CO2 near zero emission medium-low temperature solar heat energy and fossil energy complementary system and flow

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Embodiment Construction

[0057] The purpose of the present invention is to realize CO 2 The organic combination of near-zero emissions and efficient energy conversion and utilization proposes a multi-energy complementary energy-environment integrated system integration scheme.

[0058] Such as figure 2 Shown, is the CO provided by the present invention 2 Near-zero emission medium and low temperature solar thermal fossil energy complementary system (ZE-SOLRGT), which mainly includes CO 2 Near-zero emission medium and low temperature solar thermal fossil energy complementary system, combining medium and low temperature solar thermal fossil energy complementary device SOLRGT and CO 2 Separation and organic combination (the connection in the above-mentioned system is a known technology, and the present invention will not describe it in detail here).

[0059] System flow of the present invention is described as follows:

[0060] Natural gas methane (S1) is throttled and depressurized by the fuel throt...

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Abstract

The invention discloses a CO2 near zero emission medium-low temperature solar heat energy and fossil energy complementary system and a flow. Pure oxygen combustion is selected in the system so that organic integration of efficient energy conversion utilization and CO2 separation processes is realized. According to the system, water is used as a main working medium; and a quasi combined cycle consisting of a quasi Brayton cycle and a quasi Rankine cycle integrates the high temperature advantage of a turbine inlet of the Brayton cycle and the high pressure ratio advantage of the Rankine cycle. By introducing medium-low temperature solar energy, heat exchange matching of the system is improved, the working medium flow rate of the system input water is greatly improved, the turbine working medium is increased, the specific work is increased, and the thermal performance is improved. The heat-to-work net efficiency of the system can reach 25 to 30 percent, the efficiency is improved by 5.2 percent compared with a fossil energy single-input reference system, the fossil energy saving rate can reach 30 to 35 percent, and CO2 near zero emission is realized. Therefore, the system has good economical efficiency and broad engineering application prospect.

Description

technical field [0001] The present invention relates to a CO 2 Near-zero emission medium-low temperature solar thermal energy and fossil energy comprehensive complementary thermodynamic cycle system (ZE-SOLRGT) and its process. Background technique [0002] At present, the technologies related to the present invention mainly include medium and low temperature solar energy utilization technology and multi-energy complementary system power generation technology combining medium and low temperature solar energy with fossil energy. The development status and system characteristics of their respective technologies are as follows: [0003] 1. Medium and low temperature solar energy utilization technology [0004] In view of the limitation of fossil energy resources and the seriousness of pollution generated in the process of utilization, the conversion and utilization of new clean energy resources (especially non-carbon energy) has become an important aspect of sustainable develo...

Claims

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Application Information

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IPC IPC(8): F02C6/18F02C3/34F02C3/28F02C7/224F01K23/10F01K17/02F03G6/06F25J1/00F25J3/00
CPCY02E10/46
Inventor 张娜诺姆.里奥罗尘丁
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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