Solar energy thermochemistry combined cool-heat-electricity system

Abstract

The invention provides a solar energy thermochemistry combined cool-heat-electricity system. Solar energy and fossil fuel are utilized complementarily based on a chemical energy and physical energy cascade utilization principle, exhaust heat of a high-temperature section of an internal combustion engine is stored in a way of sensible heat of conduction oil, and when synthesis gas supplied by a solar energy thermochemistry reaction unit cannot meet the user demand, chemical recuperation cycle driven by the sensible heat of the conduction oil is adopted to complement the amount of synthesis gas; the power capability of the solar energy and middle-low temperature exhaust heat is improved, the loss of available energy during a fuel combustion process is reduced, the influence of solar energy intermittence and instability on the operational stability of a solar energy utilization system is reduced to some extent, the operational reliability of the system is improved, the efficient storage of solar energy and the flexible control of cool-heat-electricity output ratio are realized, and the real-time changing energy using demand of a user can be met.

Description

technical field [0001] The invention relates to the field of solar thermal power generation and energy technology, in particular to a solar thermochemical combined cooling, heating and power supply system. Background technique [0002] With the progress of society and the improvement of people's living standards, the world's demand for energy is gradually increasing. However, with the depletion of fossil energy, the main body of energy consumption, the contradiction between supply and demand of energy in the world has become increasingly prominent. At the same time, the massive consumption of fossil energy has caused serious environmental problems and threatened the living environment of human beings. [0003] my country's total energy consumption increased from 1.51 billion tons of standard coal in 2001 to 4.26 billion tons of standard coal in 2014, an increase of 182.1%. Among them, the proportion of fossil energy in total energy consumption dropped from 92.5% in 2001 to...

AI Technical Summary

Problems solved by technology

The above-mentioned solar thermochemistry mainly focuses on high-temperature solar thermal energy with a focusing temperature above 800°C to carry out relevant research work. The potential for improving the energy grade in the process of converting high-temperature solar thermal energy above 800°C into fuel chemical energy is small, and the improvement in solar energy performance is relatively low.

In addition, the high-temperature solar thermochemical utilization process faces technical difficulties such as low heat collection efficiency, high investment costs and high requirements for reactor materials.

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