Influences of left-right tube insert regularly spaced with rod and spacer on heat transfer and friction factor characteristics in a thermosiphon solar water heater have been analyzed comprehensively. Results showed that the modified designs of twists reduce the pressure drop significantly...

Much work is reported in the literature pertaining to premixed burners using hydrocarbon fuels. However, very little work is available on similar burners using producer gas as a fuel. The present work aims at testing and optimization of a premixed burner with producer gas as a fuel.

In this experimental study, the design parameters and performances of counterflow vortex tubes are investigated. Under different inlet pressures, the thermal performance as a function of the following geometrical parameters is studied: the length of the vortex tube, the diameter of the inlet...