Solar Hot Water Controller Design - Part 1
by Dennis L. Feucht
Innovatia Laboratories
The energy source for domestic or commercial water heating is usually
gas or electricity. As the present sources of energy (gas, oil, coal, hydro)
become less feasible (whether for natural-resource, ecological, or geopolitical
reasons), alternative energy engineering emerges. This series of articles
on solar water heating will present the considerations for solar hot water
system (SHWS) controller design. Engineering design calculations for the
complete system are presented. A full-scale version can be designed from
these equations and implemented as a useful system, or a scaled-down version
can be built as an introductory experience in engineering a working solar-energy
system. The difference is largely the size of tanks and collector panels.
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