Heat storage temperature control device of solar disc-type Sterling engine

Abstract

The invention relates to a heat storage temperature control device of a solar disc-type Sterling engine, wherein the device is cylindrical integrally; one end of the device is provided with a solar heat collecting inner cavity, and the other end of the device is provided with a Sterling engine heat end preserved inner cavity; the middle of the device is provided with a seal box body; the device is internally provided with a heat storage material and a heat exchange guide tube; an inorganic salt high-temperature phase change material is used as the heat storage material; a high-temperature heat fluid for heat exchange acts as a heat conduction medium; heat is exchanged through the heat exchange guide tube in the device, the device is externally provided with a temperature preservation layer. One end of the device is used for absorbing heat, and the other end of the device is connected with the Sterling engine heat end; and the heat storage material and the heat exchange guide tube in the seal box body are utilized to control the temperature. Compared with the prior art, the heat storage temperature control device of the solar disc-type Sterling engine provided by the invention has the advantages that the operation temperature of the solar Sterling engine can be controlled to be constant relatively so as to improve the solar disc-type heat power generation efficiency.

Description

technical field [0001] The invention belongs to the technical field of solar thermal power generation, and in particular relates to a thermal storage temperature control device for a solar disc Stirling engine. Background technique [0002] The energy problem has become one of the most serious problems facing the economic and social development of the world and China. The decreasing conventional energy and the resulting environmental pollution will directly affect the implementation process of the sustainable development strategy of human beings in the future. In recent years, various countries in the world are devoting themselves to the development of new energy sources. Solar energy, as a pollution-free natural energy with unlimited reserves, has attracted widespread attention from environmentalists. It will surely play an important role in the transformation of the world's energy structure and become an ideal alternative energy source. Solar thermal power generation has ...

AI Technical Summary

Problems solved by technology

The temperature of the hot end of the Tring engine mainly depends on the intensity of solar radiation. The traditional temperature control device is generally realized by controlling the heat source, but it cannot control the solar radiation.

At present, the practical application of disc thermal power generation is still relatively small, and there is no report on the temperature control of the hot end of the Stirling engine through heat storage technology.

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