Combisystem Design
The size and complexity of combisystems, and the number of options available, mean that comparing design alternatives is not straightforward. Useful approximations of performance can be produced relatively easily, however accurate predictions remain difficult.
Tools for designing solar combisystems are available, varying from manufacturer's guidelines to nomograms (such as the one developed for IEA SHC Task 26) to various computer simulation software of varying complexity and accuracy.
Among the software and packages are CombiSun (released free by the Task 26 team, which can be used for basic system sizing) and the free SHWwin (Austria, in German ). Other commercial systems are available.
Solar combisystems generally use underfloor heating and cooling .
Concentrating solar thermal technology may be used to make the collectors as small as possible.
Read more about this topic: Solar Combisystem
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