Transpiration heat-transfer type solar photovoltaic optothermal combined window

Abstract

The invention discloses a transpiration heat-transfer type solar photovoltaic optothermal combined window having power generation and heating functions. A solar photovoltaic cell, a heat colleting panel and a fan are integrated on the same window to realize the integration of a building and can supply power and heat for the building at the same time without consuming any conventional energy sources. When the window works, sunshine irradiates on the surface of the solar photovoltaic cell having a certain light transmittance (which can be a thin film cell taking glass as a substrate); and one part of the sunshine can be converted into electric energy and thermal energy by the solar photovoltaic cell, and the other part of the sunshine irradiates on the heat collecting plate through the solar photovoltaic cell and is converted into the thermal energy by the heat collecting plate. The fan works by using the electric energy generated by the solar photovoltaic cell to extract indoor air into an air chamber; the heat generated by the solar photovoltaic cell and the heat collecting panel heats the air inside the air chamber; and finally, hot air flows indoors from transpiration holes for indoor heating. The window has the advantages of optimizing air channels by using the transpiration holes densely covered on the heat collecting panel, improving the heat efficiency in a transpiration heat-transfer way, and improving the heat dissipation speed and the optical-to-electrical conversion efficiency of the solar photovoltaic cell during the process.

Description

1. Technical field [0001] The present invention relates to solar photovoltaic technology, solar air heat collection technology and building integration technology, in particular to a sweating heat transfer system that combines solar photovoltaic cells and solar heat collector panels to simultaneously supply power and heat buildings without consuming any conventional energy. Thermal solar photovoltaic photothermal combined window. 2. Background technology [0002] In the field of solar energy applications, the current market-oriented products at home and abroad are mainly solar water heaters and solar photovoltaic cells. In addition, solar heating products using air as the medium have gradually entered the market. Among them, solar heating products are more used in winter, which has a certain seasonality, but has high thermal efficiency; solar photovoltaic cells can be used throughout the year, but the photoelectric conversion efficiency is low. On the other hand, only a sma...

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Problems solved by technology

[0004] At present, there are several kinds of photovoltaic windows or photovoltaic curtain walls with combined solar heat and power, but they do not involve the use of solar photovoltaic cells and heat collector plates coated with spectrally selective absorption coatings to jointly heat the air medium for building heating, nor how to optimize them. Design air flow channel to enhance convection heat transfer

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