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Solar energy / Re: Solar vortex turbine
« Last post by ROB25038072 on February 23, 2025, 11:10:26 am »I see what you’re getting at, but, the exhaust in a rocket stove comes from combustion, which rapidly heats the air, causing a strong updraft due to gas expansion and high-temperature convection creating a significant pressure difference, driving airflow (with force) up the chimney.
I see a black plastic sheet heating air passively generating anywhere near the same effect. The air will warm gradually, creating a much weaker convection current. Without the extreme heat of combustion, the airflow speed and pressure difference will be low—nowhere near enough to meaningfully drive a turbine.
Even if vortex fins help guide the exhaust flow, the issue is that a cooler, passive convection system lack the energy to produce strong airflow. Rocket stoves on the other hand are very hot, and that’s what makes their exhaust forceful. I can’t visualise a solar-heated air achieving the same effect.
I see a black plastic sheet heating air passively generating anywhere near the same effect. The air will warm gradually, creating a much weaker convection current. Without the extreme heat of combustion, the airflow speed and pressure difference will be low—nowhere near enough to meaningfully drive a turbine.
Even if vortex fins help guide the exhaust flow, the issue is that a cooler, passive convection system lack the energy to produce strong airflow. Rocket stoves on the other hand are very hot, and that’s what makes their exhaust forceful. I can’t visualise a solar-heated air achieving the same effect.
