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I am making a solar hot water heating system and need to check its performance for both series and parallel connections, but am unable to understand to connect it in parallel arrangement and need help regarding my the same
The answer depends a on which solar collector model you are using. For many solar collector models, you enter the total array area as a parameter and the number of collectors in series in that array as another parameter. If you have a 10 m2 array that has 2 panels in parallel you would enter the array area as 10 and the number in series as 1. If you have a 10m2 array that has two panels in series then you'd enter the same array area (10) and you'd enter the number in series as 2.
You have to be careful about what you do with the flow rate through the collector array. If the flowrate into the 10m2 collector array is 500kg/h then each panel in the parallel configuration (10m2, 1 in series) will get 250kg/h. In the series configuration (10m2, 2 in series) then each of the two collectors will see the full 500kg/h flow rate
In the most recent TESS Solar Library release (v18) the collector models now ask for the module area and then the number of modules in parallel and series.
kind regards,
David
