This is a pressure-driven expansion tunnel with both a visually nice design and most of the peripherals that would be needed to meet our requirements. Additional analysis was provided to show flow velocity, which was a nice add.

This is a pressure-driven expansion tunnel that has all the peripherals that would meet our requirements. The dual mode operation is also interesting, although feasibility is to be determined.

This is a pressure-driven expansion tunnels. The design is a nice traditional design with most of the peripherals that would be needed to meet our requirements.

This is a pressure-driven expansion tunnel. The design is nice for a traditional linear expansion tunnel that would likely meet our requirements. Some peripherals are missing like an exhaust tank.

This is a pressure-driven expansion tunnel. Nice design in general, but a description and peripherals, like tanks, are missing.