A Calculation Method for Thermal Performance of Hollow Photovoltaic Glass Curtain Wall

Abstract

The invention relates to a hollow photovoltaic glass curtain wall heat performance calculation method, which comprises the following steps of S1, building an unsteady state heat transfer model of a hollow photovoltaic glass curtain wall; S2, obtaining environment data, performing cubic spline interpolation on the environment data, substituting the value into the model obtained in the step S1, and solving the photovoltaic assembly temperature, the substrate glass temperature and the photovoltaic assembly output power, wherein the environment temperature data includes solar radiation degree, environment temperature and air speed, and the unknown quantities in the model are photovoltaic assembly temperature, the substrate glass temperature and the photovoltaic assembly output power. Compared with the prior art, the method has the advantages that a heat transfer theory model of a hollow photovoltaic glass curtain wall system is built through a non-steady state energy balance equation; the influence of external environment on the system heat performance, and the influence of the substrate glass and indoor environment on the photovoltaic system heat performance are considered; the heat performance of the photovoltaic assembly is more accurately obtained, so that the photovoltaic assembly is favorably improved; the cold and heat load of a building is reduced.

Description

technical field [0001] The invention relates to a mathematical calculation method for a photovoltaic power generation and heat transfer system, in particular to a calculation method for the thermal performance of a hollow photovoltaic glass curtain wall. Background technique [0002] BIPV is a new concept of applying solar power generation. Solar photovoltaic power generation arrays are installed on the outer surface of the maintenance structure of the building to provide electricity. Since the combination of photovoltaic arrays and buildings does not occupy additional ground space, it can alleviate the tension of urban land use, making its role in the city well played. With the emergence of BIPV technology, buildings have changed from purely energy-consuming to energy-supplying, which can alleviate the huge contradiction between urban development and energy supply, create a healthy living environment with low energy consumption and high comfort, and realize the sustainable ...

AI Technical Summary

Problems solved by technology

At present, most of the research on building integrated photovoltaics is carried out from the perspective of photovoltaic modules, and there is a lack of comprehensive and systematic research on building integration.

Images