Thanks for your follow up:
The washing machine motor is a helpful suggestion for future investigation but to 'prototype' the system I would prefer a 'plug n play' unit such as a PMA vehicle alternator, I know they do exist but just need to track one down that can be inexpensively procured as...
Hi uart
I am looking for 50-60Watts. As a basic car alternator, not a high performance or PMA unit, can generate 60amps at 12V at optimum RPM I don't quite follow your 10 watt limit. I am no expert and understand the many areas where generated power can be lost, or not generated if you can't...
I was hoping for a knowledgeable response to my question rather than an opportunity to explain how a solar chimney actually works; simpler if you go to Wikipedia and look up 'Solar Chimney'.
I am incorporating a solar chimney in my house build in Thailand, this will have a venturi to create the suction for removing warm air from the building and I intend to use this high air speed area to generate electricity. As air speed will be dependant on the Sun and not the more fickle wind...