Modelling of Global Solar Irradiance on Sloped Surfaces in Cimatic Conditions of Kraków

• Autorzy: Piotr Michalak
• Języki publikacji: EN

Abstrakty

EN

The paper presents calculations of global solar irradiance on inclined surfaces of any orientation in the hourly time step. For computational purposes there were used the data from typical meteorological years (TMY) available in a form of text files on the website of the Ministry of Infrastructure and Development. Hourly solar global horizontal irradiance from measurements from the file for Kraków was used as input for five anisotropic models (Hay, Muneer, Reindl, Perez and Perez according to the new PN-EN ISO 52010-1 standard). Direct normal and diffuse horizontal and then global irradiances were calculated. To illustrate the effects of using different models, for the exemplary residential building, monthly solar heat gains and heating demand was determined according to the monthly method of PN-EN ISO 13790. In comparison to the solar data from the TMY, an average decrease in the value of solar gains amounted 37%, what resulted in an increase in the calculated heat demand of the building by 10%. This is very important since this change takes place without any modernisation works. (original abstract)

Słowa kluczowe

EN

Thermal energy; Solar energy

PL

Energia cieplna; Energia słoneczna

• Czasopismo: New Trends in Production Engineering
• Rocznik: 2019
• Numer: vol. 2(1) cz.II Part II: Selected Organizational Problems in the Mining Industry
• Strony: 505--514

Twórcy

autor

Piotr Michalak

• AGH University of Science and Technology Kraków, Poland

Bibliografia

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Identyfikatory

DOI

10.2478/ntpe-2019-0054