Determining device and measuring method thereof for residual heat storage quantity of phase change energy storage material

Abstract

The invention discloses a determining device and a measuring method thereof for residual heat storage quantity of a phase change energy storage material. The determining device and the measuring method belong to the technical field of phase change material state evaluation. The determining device comprises a thermal insulation box, wherein a heating device, a heat exchange circulating water pipeline, a water inlet temperature measuring device, a water outlet temperature measuring device and a phase change energy storage material temperature measuring device are arranged inside the thermal insulation box, the water inlet temperature measuring device is arranged at a water inlet of the internal heat exchange circulating water pipeline inside the thermal insulation box, the water outlet temperature measuring device is arranged at a water outlet of the internal heat exchange circulating water pipeline inside the thermal insulation box, the phase change energy storage material temperature measuring device is used for measuring temperature of a phase change energy storage material to be measured, and the heating device is used for heating the phase change energy storage material to be measured; a power consumption measuring device is arranged for recording power consumption of the heating device; an outer surface temperature measuring device is arranged on the outer surface of the thermal insulation box, and is used for measuring heat dissipating quantity of the thermal insulation box; and an external waterway communicated with the heat exchange circulating water pipeline is arranged outside the thermal insulation box, and a flow meter is arranged inside the external waterway. The determining device and the measuring method thereof can obtain the residual heat storage quantity of the phase change energy storage material through measurement and calculation in real time.

Description

technical field [0001] The invention relates to a measuring device for residual heat storage of a phase change energy storage material and a measuring method thereof, belonging to the technical field of state evaluation of phase change materials. Background technique [0002] A phase-change energy storage material is a substance that can switch between physical states such as solid, liquid, and gas at a certain temperature, and release or absorb a large amount of energy at the same time. Phase change materials used for energy storage can be divided into organic, inorganic, and composite types according to their composition. The principle is to use a large amount of latent heat of vaporization or liquefaction at the phase change temperature point and a small amount of sensible heat storage of temperature changes. Or release energy to realize energy utilization at different times. Using this characteristic of phase change energy storage materials, new energy can be absorbed, ...

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Problems solved by technology

[0004] The purpose of the present invention is to propose a device for measuring the residual heat storage capacity of phase-change energy storage materials and its measurement method in order to solve the problem that the existing phase-change energy storage materials cannot obtain the residual heat storage capacity in real time. question

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