Thermoelectricity and hydrogen multi-combination-supply system based on solar energy

Abstract

The invention relates to a thermoelectricity and hydrogen multi-combination-supply system based on solar energy. The system comprises a disc-type solar condenser, a solid oxide electrolytic tank, a proton exchange membrane fuel battery, a dual-level Rankine cycle, heat exchangers, a humidifier, a cold water tank and a hot water tank. The solid oxide electrolytic tank is a solid oxide electrolysiselectric pile, the proton exchange membrane fuel battery is a proton exchange membrane fuel battery electric pile, and the dual-level Rankine cycle is used by combining a high-temperature Rankine cycle and a low-temperature Rankine cycle and mainly comprises the heat exchangers, pumps, condensers, turbines and a flash evaporator. According to the thermoelectricity and hydrogen multi-combination-supply system based on the solar energy, the disc-type solar condenser takes the solar energy as a driving heat source, through the Rankine cycle, water electrolysis and a fuel battery power generationtechnology, continuous electric power, heating and hot water are provided for users, and clean and efficient utilization for the solar energy is achieved. The thermoelectricity and hydrogen multi-combination-supply system based on the solar energy is suitable for a distributed energy system, the demands of the users for multiple kinds of energy are met, and the utilization rate of the combination-supply system is further increased.

Description

technical field [0001] The invention relates to a heat, electricity and hydrogen combined supply system, in particular to a solar energy-based heat, electricity and hydrogen combined supply system. Background technique [0002] With the sharp increase in energy demand, it has become the current research focus to find renewable energy that can replace fossil fuels, improve energy utilization efficiency, and reduce environmental pollution. As a widely used, clean and friendly renewable energy, solar energy plays an important role in sustainable development. The proportion of solar power generation in the installed power structure and primary energy production is increasing year by year. However, solar energy is affected by time and climate, and supercapacitors and batteries are used to store electric energy. The energy density is low and the cost is high in the whole life cycle. At the same time, the generated electric energy cannot be fully utilized. Hydrogen is a renewable...

AI Technical Summary

Problems solved by technology

At present, electrolytic hydrogen production systems mostly use low-temperature proton exchange membrane electrolyzers, which have low electrolysis efficiency. High-temperature solid oxide electrolyzers have high electrolysis efficiency, and can effectively reduce the electrical energy required for water electrolysis under high-temperature operation.

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