Trombe wall with comprehensive application of solar heat collection and radiation refrigeration

Abstract

The invention relates to a Trombe wall with the comprehensive application of solar heat collection and radiation refrigeration. The Trombe wall comprises a transparent cover plate, a heat collection and storage wall, an air flow channel, upper ventilation openings, lower ventilation openings and baffles. The transparent cover plate is made of full-wave band high transmittance material. A venetian blind is arranged on the inner side face of the transparent cover plate, one side faces of slats of the venetian blind are coated with selective absorbing coatings, and absorptivity of the coatings ranges from 90% to 95% within the solar radiation wave band ranging from 0.2 micrometer to 3 micrometers. The other side faces of the slats of the venetian blind are selective radiation surfaces, emissivity of the selective radiation surfaces ranges from 80% to 90% within the atmospheric window wave band ranging from 8 micrometers to 13 micrometers, and emissivity of the selective radiation surfaces ranges from 60% to 90% within other wave bands. The Trombe wall can heat a room in the daytime and preserve heat of the room at night in winter, and can reduce heat loads of the room in the daytime and refrigerate the room at night in summer, and therefore the problem that a traditional Trombe wall can only heat the room and is single in function is solved; the defect that the appearance of the traditional Trombe wall is not attractive enough is overcome due to the utilization of the venetian blind attractive in appearance.

Description

technical field [0001] The invention belongs to the field of energy utilization technology, and specifically relates to the application of solar heat collection and radiation refrigeration. Background technique [0002] Scholars at home and abroad have made nearly half a century of research progress on Trombe wall technology. It is named after the French professor Felix Trombe who first proposed this concept in 1966. The traditional Trombe wall is mainly composed of a transparent cover plate, heat collection and storage wall, air flow channel, upper and lower vents and baffles. Its working principle is: during the day, the blackened outer surface of the heat-collecting and heat-storage wall is used to absorb solar energy, and the cold air in the room enters the air channel between the transparent cover plate and the heat-collecting and heat-storage wall through the thermosiphon effect to be heated. The hot air flows into the room through the upper vent for heating, and at t...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the shortcomings of traditional Trombe walls that are difficult to cool in summer and not beautiful enough, the present invention proposes a Trombe wall that can simultaneously satisfy heating in winter and cooling in summer and take into account the beauty of solar heat collection and radiation cooling.

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