Algaevator: Spatializing Biotechnology Infrastructure
In collaboration with Jie Zhang
Part of the Burglars of Transnatural Transparency (BoTT) Lab pavilion, instructed by Jose Selgas (Selgascano Architects)
Images copyright Iwan Baan
What does it mean to spatialize and inhabit infrastructure? The BoTT Lab pavilion investigates the potential of biotechnology utilities to create transparent and lightweight architectural surfaces.
An algae photobioreactor is an artificial environment used to increase the production of algae through the introduction of slow movement, carbon dioxide, and increased access to sunlight. The algae is then used for various consumer products and alternative fuels.
Typically the devices used to propagate algae are hidden in agricultural and industrial structures. This proposal creates a weather-tight roofing system that can add both spatial value and agriculturally productivity to our everyday environment.
Research shows that gravity-based photobioreactors (a form of the device where the algae are never touched by moving mechanisms and pumps, but instead by air bubbles and gravity) have increased yields as they offer a gentler form of movement and carbon dioxide introduction.
Three separate spirals are intercoiled between a heat-fused, water-tight, layered membrane.
Spiral 1: Introduces CO2 from the environment to the bottom of the coil via a low-energy pump
Spiral 2: Through a specially-designed valve, CO2 enters an algae-filled spiral. Bubbles gently transport algae to the top of the spiral while providing it with CO2 for photosynthesis.
Spiral 3: Once at the top of the pavilion, the algae is able to off-gas oxygen into the environment and travel back down to the bottom of the spiral for further cycling through the system
Not only does the funnel shape optimize proper sun exposure for algae propagation, but it is able to harvest rainwater for adjacent bio-tech functions while dividing the otherwise open cube of the pavilion, providing spatial experience and implied visitor circulation.
The Algaevator operated successfully through the three-month deployment of the pavilion.