## Solar Electricity using Natural Convection - a research proposal

### Summary

A theoretical
configuration is described involving a transparent
multichannel chimney above a solar absorber. Beneath the
absorber air is drawn from ground level through a nozzle and
turbine. An experimental model is proposed of overall
height 5m and solar absorber area 3 x 3m with a turbine of
diameter 0.4m. Calculation gives maximum air flow
velocity of 31.21ms^{-1} (70 mph) at insolation 750 wm^{-2} and
kinetic energy of 2.254 kw with an efficiency of 33.39%.