Phase change heat storage lightweight wall-based high-performance solar air heating system

Abstract

The invention belongs to the field of renewable energy buildings and relates to a phase change heat storage lightweight wall-based high-performance solar air heating system, comprising a solar air heat collector, a phase change heat storage lightweight wall and a floor layer. An inner surface layer of the phase change heat storage lightweight wall is made of cement combined and set phase change material plates; a middle layer of the phase change heat storage lightweight wall is composed of a wall air passages; the outer surface layer is made of lightweight wall material plates. A bottom layer of the floor layer is an insulation material layer. The space around and above the air passages of the middle layer is filled with cement combined and set phase change mortar and is tamped and leveled; the upper layer of the floor layer is made of a floor facing layer. The air passages of the phase change heat storage lightweight wall are in series connection with the corresponding air passages, forming a unit; air channels of the unit are connected in parallel through pipe; the unit is serially connected in order with a reflow pipe, a reflow valve, a ventilator, the solar air heat collector, an air supply pipe and an air supply valve. The phase change heat storage lightweight wall-based high-performance solar air heating system is capable of keeping indoor temperature at 9 to 12 DEG C in remote or plateau cold areas.

Description

technical field [0001] The invention relates to a novel solar air heating system constructed by combining a lightweight building enclosure structure with a phase-change thermal storage wall material, belonging to the field of renewable energy building applications. Background technique [0002] With the rapid development of urbanization, my country is now at the peak of urban construction, and building energy consumption is increasing rapidly. As of 2012, the total energy consumption of buildings in my country was 690 million tons of standard coal, accounting for 19.1% of the total energy consumption in the country. It is estimated that by 2020, my country will "build another China" and the urban construction area will reach 30 billion m 2 , Building energy consumption will account for 33% of the total energy consumption in the country. Adopting new materials, new technologies, and new ideas to greatly reduce building energy consumption is the key to building green building...

AI Technical Summary

Problems solved by technology

[0005] In order to improve the solar heat utilization efficiency of light-weight building envelopes, the present invention organically combines cement composite shape-setting phase-change material boards with light-weight building envelopes to construct a high-performance

Images