[TRNSYS-users] Collectors in parallel n series confusion

[David BRADLEY]

Dev,
> Please correct me if I'm wrong, but how will the model correctly
> simulate this? It doesn't know the "unit area" of collector. How does
> the model not assume that 2 collectors in series might have 16.5m2
> each?
it doesn't really need to know unit area of the collector modules. The 
way most collectors are constructed is with a header and a number of 
parallel risers. Whether you have one module or two in parallel, you are 
still dealing with a header and a number of parallel risers. The 
difference between one module or two in parallel is in the edge losses. 
One larger module will have less edge loss per unit of surface area than 
two modules. The edge losses are captured in the efficiency equation.
Kind regards,
  David


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David BRADLEY
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Thermal Energy Systems Specialists, LLC
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