An experimental system for a phase-change heat collection and storage wall-type solar house

Abstract

The invention discloses a phase-change heat-collecting and heat-storage wall type solar house experiment system, which comprises an external environment box, a solar simulator device, a phase-change heat-collection and heat-storage wall device and a solar house experiment chamber. The external environment chamber can simulate the outdoor air temperature and humidity in different regions, the solar simulator device can simulate the solar radiation in different regions, the phase change heat collection and heat storage wall device is an assembled component, and the experimental chamber is a movable scale chamber. Through the organic cooperation between the various parts, the thermal performance of different parts of the phase change thermal storage wall, the verification of the mathematical model of the solar house and the experimental research on the thermal design method can be carried out. The invention is efficient, economical and flexible, and has certain practical significance for carrying out experimental research on phase-change heat-collecting and heat-storage wall-type solar houses.

Description

technical field [0001] The invention belongs to the technical field of building energy conservation, and relates to an experimental system using a scaled-down phase-change heat-collecting and heat-storage wall device and a solar house experimental chamber, combined with a solar simulator device and an external environment box for solar house experimental research. Background technique [0002] The northern part of my country is relatively cold and is the main area for heating. The heating energy consumption of northern cities and towns is 184 million tce, accounting for 21% of building energy consumption. Reducing building heating energy consumption is of great significance for building energy conservation. The northern region is rich in solar energy resources. If the thermal insulation and heat storage performance of the building envelope can be enhanced and the solar energy can be used efficiently for heating, the indoor thermal environment can be effectively improved and h...

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Problems solved by technology

[0006] (2) The structure design of the experimental chamber is single, and the research scope is limited

[0007] The structural design of the experimental chamber is relatively fixed and single. The glass cover plate, thermal storage wall and enclosure structure materials cannot be replaced, and the thickness of the air interlayer cannot be adjusted, which seriously hinders the research on the thermal performance of different components and hinders the different design parameters. Research on the law of influence, the scope of the study is limited

[0008] (3) The spectral characteristics of the radiation source are quite different from the actual sun, which cannot accurately reflect the influence of actual solar radiation

[0009] Most of the radiation light sources in the laboratory use halogen tungsten lamps, xenon lamps, etc., and the spectral distribution curves emitted by these light sources are quite different from the actual sun, which cannot truly reflect the actual solar radiation, and the stability of the light source is poor

[0010] (4) The adjustment range of solar radiation intensity is limited, and the uniformity of solar radiation is difficult to guarantee

[0011] The solar simulator device used in the laboratory can only adjust several fixed solar radiation intensities, and cannot continuously adjust the solar radiation intensity, and the adjustment range is limited

At the same time, the position and arrangement of the light source are relatively fixed, and the uniformity of solar radiation is difficult to guarantee

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