Low-entropy hybrid combustion circulating thermal power system

Abstract

A low-entropy mixed combustion circulating thermal power system includes a working mechanism (1), a combustion chamber (2), an oxygen source (3), a fuel source (4) and an expansion agent source (5). The oxygen source (3) is communicated with the combustion chamber (2) through an oxygen high-pressure supply system (301), the fuel source (4) is communicated with the combustion chamber (2) through a fuel high-pressure supply system (401) and the expansion agent source (5) is communicated with the combustion chamber (2) through an expansion agent high-pressure supply system (501). An oxygen heat absorption heat exchanger (3011) is arranged in the oxygen high-pressure supply system (301) and the oxygen in the oxygen source (3) absorbs heat in the oxygen heat absorption heat exchanger (3011) to form a high-pressure gaseous oxygen. Then the high-pressure gaseous oxygen enters into the combustion chamber (2). An expansion agent heat absorption heat exchanger (5011) is arranged in the expansion agent high-pressure supply system (501) and the expansion agent in the expansion agent source (5) absorbs heat in the expansion agent heat absorption heat exchanger (5011) to form a high-pressure gaseous expansion agent. Then high-pressure gaseous expansion agent enters into the combustion chamber (2). The minimal pressure bearing capability of the oxygen high-pressure supply system (301) is greater than or equal to 2MPa, and the combustion chamber (2) is connected with the working mechanism (1) outputting power. The low-entropy mixed combustion circulating thermal power system realizes high efficiency, energy saving and low emission.

Description

technical field [0001] The invention relates to the field of thermal energy and power, in particular to a low-entropy co-combustion cycle thermal power system. Background technique [0002] In 1769, the birth of the external combustion engine directly triggered the first industrial revolution of mankind, and also created Great Britain, an empire on which the sun never sets. The birth of the gasoline engine in 1883 and the birth of the diesel engine in 1897 marked the beginning of mankind's transition from the era of external combustion to the era of internal combustion. Internal combustion engines represented by gasoline engines and diesel engines have built the power foundation of modern civilization and carried countless dreams of human beings. It can be seen that both external combustion engines and internal combustion engines have made immeasurable contributions to the progress of human civilization. Today, a country's internal combustion and external combustion engine...

AI Technical Summary

Problems solved by technology

However, due to the limitation of the thermodynamic cycle mode of the external combustion engine and the thermodynamic cycle mode of the internal combustion engine, only part of the heat participates in the work cycle in these two cycle systems and also leads to the T of the external combustion cycle system. 1 The value (that is, the temperature of the high-temperature heat source, that is, the temperature of the working medium when it is about to expand and do work) is low and the T of the internal combustion cycle system 2 value (that is, the temperature of the low-temperature heat source, that is, the temperature of the working medium at the end of the expansion stroke / process) is high, which leads to an unsolvable pollution problem, and ultimately causes neither the external combustion engine nor the internal combustion engine to make the thermodynamic system. The thermal efficiency (the ratio of the output work to the calorific value of the fuel) has been substantially improved, and the problem of emission pollution cannot be fundamentally solved

In fact, using these two thermodynamic cycle methods to convert fossil energy and biomass energy into thermal work is not only a huge waste of energy, but also a huge damage to the environment.

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