Solar-gas combined triple-generation system with gradient utilization of thermoelectric power generation

Abstract

The invention provides a solar-gas combined triple-generation system with gradient utilization of thermoelectric power generation. The system comprises a solar cooling-heating-electricity triple-generation system, a gas cooling-heating-electricity triple-generation system and a thermoelectric power generation system. According to the solar-gas combined triple-generation system, three functions ofefficient cooling, heating and power generation and combination thereof are achieved mainly through solar heat-collection power generation and gas-thermoelectricity technologies, under the condition of enough solar irradiance, the solar-gas combined triple-generation system is used for heating a room or making hot water by utilizing solar energy as a low-temperature heat source, under the condition of insufficient solar irradiance, the solar-gas combined triple-generation system is used for heating a room or making hot water by utilizing gas as energy, hot water can be made during indoor cooling in summer, and the solar-gas combined triple-generation system can continuously, stably and efficiently operate without limitation of weather; meanwhile, the thermoelectric power generation technology is utilized, waste heat generated in the system operation process is subjected to gradient utilization of energy, and thus the comprehensive energy efficiency ratio of the system is improved.

Description

technical field [0001] The invention relates to the field of composite utilization of new energy and traditional energy, in particular to the field of solar gas technology, especially a solar gas composite triple supply system for power generation by cascading temperature difference. Background technique [0002] The massive use and over-exploitation of coal and oil have caused serious environmental pollution and energy shortages. Environmental pollution and energy crisis have seriously threatened the survival and development of human beings. Only less than 20% of solar energy has been effectively used in current photovoltaic power generation, and the remaining nearly 80% of solar energy is dissipated into the environment in the form of thermal energy. Effective utilization of this part of waste heat from photovoltaic power generation will greatly increase the economic benefits of distributed solar photovoltaic power generation systems. [0003] Because solar energy is grea...

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a solar-gas composite triple supply system that utilizes temperature difference to generate electricity in stages, so as to achieve efficient cooling, heating, and power generation by using solar thermal power generation and gas-fired thermoelectric technology and its Function combination, when the solar radiation is sufficient, the system uses solar energy as a low-temperature heat source for indoor heating or hot water production; when the solar radiation is not enough, the system can use gas as an energy source for indoor heating or hot water production , and in summer, it can also produce hot water while cooling the room, and the system can achieve continuous, stable and efficient operation without being restricted by the weather. Comprehensive energy efficiency ratio

Images