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Showing results for tags 'solar flux'.
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Dear Experts, I have a solar panel, which consists of different layers (solids). The panel is exposed to a irradiance of 800 W/m^2 from straight above: I have a question regarding the definition of the surfaces under Solar Radiation Surface (Default, Inward, Outward, Both Sides) for the case shown above. If I define all surfaces (side-, top & bottom surfaces and also surfaces between different layers) as DEFAULT, I get the following results in Hyperview for the solar flux: If I define all surfaces as BOTH SIDES, I get the following results in Hyperview for the solar flux: How can I decide which option is the right for my usecase to model the physics correctly. Furthermore, what exactly is designated with solar_heat_flux in Hyperview? Is it the radiation intensity or another quantity? And what are the "best" options for Solar Radiation Parameters for num.rays, num. diffuse sub rays, max. ray reflections, min.ray energy? Thanks in advance!
Dear Experts, My objective is to make a thermal analysis of a photovoltaic panel like in the paper I have attached. This panel shall be exposed to a irradiance of 1000 W/m^2 (in negative z-Direction) for 60 seconds at an ambient temperature of 25°C. The target values are the cell reaching solar flux (solar irradiance) and the temperature at the solar cell. I work with Hypermesh 2019 and the AcuSolve user profile. My procedure was similar to the tutorial ACU-T 3201 (Greenhouse Daytime Simulation): I have already defined the problem description and auto solution strategy, model propoerties and solar radiation models, applied volume parameters and meshed the panel with 1 mm tetra-volume elements. When I run the Acu Solve Job Lauchner and open the results in Hyperview afterwards, no results are displayed. Now to my questions: Is it possible to run a simulation with Acusolve without fluid (only solids) in the system? How do I define contact conditions like free convection with the environment or conduction? Do I need an emissivity model like in ACU-T 3200? Do I need to determine surface groups? I have also attached the Hypermesh file so to give you an idea of my simulation model. Thanks in advance! I would be extremely grateful about a help. 2015_Temperature distribution of photovoltaic module based on finite element simulation_Zhou.pdf Validation_2015_Zhou.hm