Photovoltaic/photo-thermal coupling driving building chimney ventilation strengthening system and method

Abstract

The invention discloses a photovoltaic / photo-thermal coupling driving building chimney ventilation strengthening system and method.The photovoltaic / photo-thermal coupling driving building chimney ventilation strengthening system comprises a solar photovoltaic / photo-thermal integrated assembly, a heat exchange system and a ventilation unit, and the solar photovoltaic / photo-thermal integrated assembly is arranged on a roof and used for collecting solar energy; solar energy is converted into electric energy and heat energy to serve as energy for strengthening natural ventilation; the heat exchange system comprises a primary heat exchange unit and a secondary heat exchange unit, the primary heat exchange unit is used for exchanging heat with the solar photovoltaic / photo-thermal integrated assembly, and the secondary heat exchange unit is used for exchanging heat with air in the ventilation chimney; and the ventilation unit is used for introducing outdoor air into a room for ventilation. According to the system, full-solar clean energy driving active and passive ventilation is achieved, the effect of improving building ventilation is achieved, and the purposes of energy conservation and emission reduction are met.

Description

technical field [0001] The invention belongs to the technical field of building energy saving, and relates to a photovoltaic / photothermal coupling driven building chimney ventilation strengthening system and method. Background technique [0002] As the basic place for people to live, study and work, buildings also generate a lot of energy consumption and environmental pollution. The energy consumption of HVAC and ventilation systems accounts for about half of the energy consumption of buildings. Building ventilation is an indispensable means to adjust the physical environment of the building. It can reduce the indoor temperature, take away the waste heat and humidity, meet the thermal comfort needs of the human body, and improve the indoor air quality. At present, the ventilation technology of buildings is becoming more and more mature. Reasonably arrange building groups and building orientations, use appropriate building opening sizes and opening positions, set atriums, ve...

AI Technical Summary

Problems solved by technology

[0003] At present, mechanical ventilation, natural ventilation or mixed ventilation are generally used for building ventilation, and there are the following problems: (1) In the design of building ventilation, the survey and analysis of the climate in the area is not in place, and the climate difference between the north and the south is large, and the design is carried out with a unified standard. The ventilation volume does not match the design requirements, affecting the ventilation effect, resulting in increased building energy consumption and a waste of natural resources; (2) Under the concept of green buildings, the traditional ventilation design uses air conditioning as the main control method, which can solve indoor ventilation and temperature problems in a short time , but increased construction costs and environmental pressure, and higher energy consumption; (3) The use of natural ventilation can effectively save energy consumption for air conditioning and mechanical ventilation, but the effect of natural ventilation depends on climate, building type, function, design, control strategy, etc. It is closely related to the environment, the external environment is unstable, it is difficult to ensure the indoor air circulation rate, and the ventilation quality will also be affected.

[0006] Therefore, after searching the existing technical literature, no relevant patent reports on solar photovoltaic / photothermal coupling driven building chimney ventilation enhancement system were found.

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