Shape-stabilized phase-change and embedded tubular ventilation roof

Abstract

The invention belongs to the technical field of building energy conservation, discloses a shape-stabilized phase-change and embedded tubular ventilation roof, and provides phase-change layer thickness, phase-change temperature range and ventilation strategy suitable for different regions. The shape-stabilized phase-change and embedded tubular ventilation roof comprises a roof layer provided with aphase-change material layer and an embedded tubular ventilation pipeline, an air inlet and an air outlet, wherein electric air valves and a fan are arranged on an air opening, the fan is used for conveying outdoor air to the ventilation pipeline, and the electric air valves are used for switching the communicating and non-communicating state of the outdoor air and the embedded tubular ventilationpipeline. Compared with an existing traditional roof system, the problems of effective heat insulation in daytime and effective heat removal at night in summer can be effectively solved, and cool wind at night can be utilize to store cold, so that a roof structure with near zero energy consumption in summer is achieved. Compared with existing similar phase-change ventilation bricks, the phase-change ventilation roof achieves optimal heat insulation performance in different climate regions through the improvement of the roof structure, the design of the thermophysical properties of a phase-change material and the optimization of the ventilation strategy.

Description

technical field [0001] The invention belongs to the technical field of building energy conservation, and more specifically relates to a shaped phase change and embedded tube ventilation roof, which can greatly reduce the heat gain from solar radiation entering the room through the roof in summer, and store the ventilation cooling capacity at night, thereby improving The indoor thermal environment reduces the cooling load of the air conditioner. Background technique [0002] The total energy consumption of buildings in my country has been increasing year by year, and its proportion in the total energy consumption has risen from 10% in 1978 to 33% in 2016. About 65% is an important part of building energy consumption. Inventing a technology that can improve the thermal comfort of indoor personnel and reduce the peak load and energy consumption of air conditioning has great application prospects. The cooling load of the air conditioner is mainly composed of the envelope structu...

AI Technical Summary

Problems solved by technology

Compared with the existing traditional roof system, the present invention can effectively solve the problem of effective heat insulation during the day and effective heat discharge at night in summer, and can store cold at night, so as to realize a roof structure with near zero energy consumption in summer

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