Heat Transfer Efficiency!

Heat Transfer Efficiency!

Wow, heat transfer efficiency is easy to understand! 

Read on…

Raising the Temperature of gases flowing next to the heat exchanger (the pot in a cook stove) is probably the most effective technique in a Rocket stove to increase heat transfer efficiency (use less wood for cooking).

Doubling the Temperature of gases doubles heat transfer efficiency.

Doubling the Area exposes to the gases doubles heat transfer efficiency.

Doubling the Velocity of gases ~doubles heat transfer efficiency.

Doubling Radiation increases heat transfer efficiency to the 4^th power.

Increasing the view factor helps, too! That’s the proportion of the radiation strikes the bottom surface of the pot.

A 6mm to 7mm channel gap pot skirt increases heat transfer efficiency by ~ 25%.

Simmering at the needed low firepower can save a lot of fuel, too.