Building chimney effect natural ventilation strengthening system and method

Abstract

According to the building chimney effect natural ventilation strengthening system and method, in the daytime with hot outdoor temperature, on one hand, electric energy is collected through a photovoltaic curtain wall of the south outer wall of a solar chimney and provided for a low-temperature heating cable laid in the wall body, facing the sun, of the chimney through a photovoltaic inverse controller; solar energy storage is achieved through the outer wall heat storage unit; on the other hand, the heat storage unit arranged on the inner wall of the chimney is used for recycling and storing heat discharged when the air conditioner runs in the daytime; and at the moment when the outdoor air temperature is low and natural ventilation conditions are met, an air outlet of the chimney is opened, heat collected by the heat storage wall is used for heating chimney air, natural ventilation is enhanced, low-energy-consumption indoor air temperature and humidity regulation and fresh air ventilation are achieved, and the requirement for heat comfort of the human body is met.

Description

technical field [0001] The invention belongs to the technical field of building energy conservation, and relates to an indoor ventilation and cooling control system, in particular to a building chimney effect natural ventilation strengthening system and method. Background technique [0002] In the case of building envelope shelter, the indoor environment will form a relatively independent microclimate zone, and people spend about 80% to 90% of their time in the indoor environment (such as housing, workshops or vehicles), so The air quality and thermal comfort of the indoor environment are closely related to the healthy life of human beings. Building ventilation is an effective means to adjust the comfort of the indoor microclimate environment. Now many public buildings are ventilated through pipes, exhaust fans, atrium ventilation, chimney ventilation, and roof ventilation. temperature, humidity and air quality. [0003] The construction industry has always had the problems...

AI Technical Summary

Problems solved by technology

Existing building indoor ventilation generally adopts mechanical ventilation or natural ventilation to adjust indoor temperature, humidity and air quality, but it still faces the following problems: 1) Natural ventilation is economical and environmentally friendly, but it is subject to large fluctuations due to the influence of external wind speed and temperature, and the use of Although the mechanical ventilation method is not affected by the external environment and can quickly ventilate and adjust the indoor temperature and humidity, it consumes a lot of energy; 2) The architectural design is limited to the appearance design, ignoring the functional design of the building, which leads to poor operation of the building ventilation chimney , energy consumption increases, causing many problems such as poor ventilation in summer and excessive infiltration in winter

However, relying solely on phase change materials may cause overcooling and phase separation of phase change materials due to large temperature fluctuations.

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