Composite active phase change thermal storage heating system and its control method

Abstract

The invention discloses a combined type positive phase change thermal storage heating system and a control method thereof. The combined type positive phase change thermal storage heating system comprises two heat supply systems including a solar water heating phase change floor and an electrical heating phase change floor, adopts three heat supply manners including a solar heat supply return circuit, a solar thermal storage return circuit and an auxiliary electrical heating circuit. Through the control of the control manner of the combined type positive phase change thermal storage heating system, the phase change thermal storage is fully utilized, the energy consumption problem of auxiliary electric heating is also taken into consideration, and good room temperature control and heat supply persistence are achieved.

Description

technical field [0001] The invention relates to a heating system and a control method thereof, in particular to a composite active phase change heat storage heating system and a control method thereof, belonging to the technical field of solar heat storage heating. Background technique [0002] Heating energy consumption in winter in heating areas accounts for a considerable proportion of building energy consumption. Using solar energy, a renewable energy source, for heating can alleviate the dual pressure of energy crisis and environmental pollution. However, the instability and discontinuity of solar energy itself have increased the difficulty of the heating scheme using solar energy. Phase change heat storage materials have high heat storage density and light weight. Applying phase change materials to buildings can significantly improve the heat storage capacity of buildings and realize the integration of heat preservation and heat storage. [0003] There are two forms o...

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Problems solved by technology

The passive phase change heat storage system integrates the heat collecting components with the building structure. The solar phase change heat storage ventilation wall is widely used. The cost of the ventilation wall is relatively low, but because the temperature fluctuates greatly and cannot be adjusted, especially in In winter, the indoor temperature is often lower; the active phase change heat storage system is widely used in solar phase change heat storage floor, because the heat storage and release capacity of the floor layer is obviously better than that of the wall, it can realize long-span intermittent heating, but still The ideal continuous heating cannot be fully realized

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