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calculations of solar panels

When available space is scarce panels should be placed in certain ways to optimize the maximum existing space:

• Parallel - is the most common form of connection. The advantages are that it allows high flow with good performance, the drawbacks is that it increases the length of the pipe, and a lower temperature, but hot enough to sanitaria.El number of panels that can be placed is limited, indicating the manufacturer this maximum number. It will never be more than 10. The legislation as it indicates is that the pressure drop of less than 1 mca, but this will never occur because the loss is very small.
  

• Series - The flow rate through all collectors is the same, allows smaller sections of pipe. If you need temperatures over 50 º C collectors are connected in series (not more than three), although not usually recomendar.Las advantages are the smallest space they occupy and the lower section of the pipeline, with higher temperatures, the disadvantages are that whenever the yield is lower in each of the collectors which implies that this configuration is strongly discouraged and are not normally use.
  

• series-parallel connection - Combine the two above provisions, the main advantage is to reduce the inconveniences of each of the previous connections.

• parallel-serial connection - The main advantage over the former is having a more balanced performance, the disadvantage is that the pipe diameter is larger.

inverted return Concept - On the connections should be kept to the principle of investment return to maintain hydraulic balance. The length of the pipeline will be minimized to minimize thermal and hydraulic losses. If you would be unable to put pressure compensating valves. There are three ways to connect:

• Monotube

• direct bitube Return - The last panel is farther than the first. The pump is designed for the worst, causing more flow in the first. The consequence of this is that heat does not need and should regulate the flow to holders. Return

• bitube invested - The panels have the same route. It makes this type of file to avoid having to regulate the flow. If nothing is done and should be used balancing valves.