We have combined aspects of the two best models of Morrison and Braun in order to simulate the performance of thermosyphon solar water heaters and develop a fixed-node, equally-convecting-mixing model. Our model has wider application limits than the originals. We have performed experiments and...

With measured data of global solar radiation and the relevant data of geographic and meteorological parameters at 7 meteorological stations in Yunnan Province, the correlations between monthly average global solar radiation on horizontal surfaces and relative duration of sunshine are developed...

The cross-corrugated heaters consist of a wavelike absorbing plate and a wavelike bottom plate, which are crosswise positioned to form the air flow channel. Two types of these heaters are considered. For the type 1 heater, the wavelike shape of the absorbing plate is along the flow direction and...