Solar phase-change heat storage system

Abstract

The invention provides a solar phase-change heat storage system. The solar phase-change heat storage system comprises a heat collector, a heat storage box and radiating tubes. The radiating tubes are arranged in the heat storage box, water heated by the heat collector passes through the radiating tubes, and heat is transferred to the heat storage box through the radiating tubes. The solar phase-change heat storage system is characterized in that a phase-change heat storage material is arranged in the heat storage box. The phase-change material is arranged to serve as a heat storage material, so that heat storage capacity is high, and energy is greatly saved.

Description

technical field [0001] The invention belongs to the field of solar energy, in particular to a heat storage solar energy system. Background technique [0002] With the rapid development of modern society and economy, the human demand for energy is increasing. However, the reserves of traditional energy such as coal, oil, and natural gas continue to decrease and become increasingly scarce, resulting in rising prices. At the same time, the environmental pollution caused by conventional fossil fuels is also becoming more and more serious. These greatly limit the development of society and the improvement of human life quality. . Energy issues have become one of the most prominent issues in the contemporary world. Therefore, seeking new energy sources, especially non-polluting clean energy sources has become a research hotspot. [0003] Solar energy is an inexhaustible clean energy with a huge amount of resources. The total amount of solar radiation energy received by the eart...

AI Technical Summary

Problems solved by technology

However, the water circulation system of the solar thermal collection system is a closed system. The circulating water is circulated and heated, but some non-condensable gases will be produced during the circulating water circulation. In addition, sometimes the water in the collector will form when the sun is strong. Soda water and hot water, so in the case of heated water for heat exchange, the heat transfer coefficient is reduced due to the presence of non-condensable gas or the formation of soda water and hot water, so that solar energy cannot be fully utilized

[0005] In the existing solar heat storage system, basically non-phase change materials are used, such as water is used as the heat storage material, and the heat storage capacity is poor.

[0006] In view of the above problems, the present invention provides a new solar heat storage system, thereby solving the problem of low heat transfer coefficient and poor heat storage capacity in the case of heat exchange between solar hot water and its fluid

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