The forum discussion centers on the application of the Bernoulli effect to design a new venting system for Purple Martin (PUMA) housing to improve brood survival under rising temperatures. The proposed design involves a funnel-shaped vent that utilizes wind to create a vacuum, drawing hot air from the nest cavity. However, concerns were raised about the potential disruption of the nest's micro-climate and the effectiveness of current venting methods, such as PVC elbow vents. Suggestions included using a tapered chimney design and incorporating mass air flow sensors to measure air movement effectively.
PREREQUISITESWildlife conservationists, avian biologists, and engineers focused on improving habitat conditions for Purple Martins and similar species facing temperature stress.
Maybe a shorter form of the vuvuzela. $2.50 each.Tom.G said:Have Fun!
It might, but there are disadvantages. I recommend a thin black metal tube, so the sunlight heated surface is in closer contact with the rising internal air. There will also be an external air current moving up the outside of the stack, that will cool the surface. If ridges were added, they would need to be vertical inside the stack, and horizontal outside. That would increase the internal exchange area, but slow it by increasing the surface area drag, while also providing accommodation for spiders, that will block the airflow.NatureFriend said:If so, could increasing the surface area for heat absorption by adding short, black ridges along this section accomplish the same thing?