An Enthalpy Recovery Ventilated Facade System Based on Principals of the Human Lung
Greenbuild 2004 - Sample Poster Content
John Breshears
Zimmer Gunsul Frasca Partnership
Ideas about absorption and permeation.
Cross section through a photosynthesizing plant showing the membrane divisions.
Rendering of the membrane lining of the human lung.
An early version o Gore-Tex - a micro-porous membrane.
A synthetic vascular graft by Gore-Tex with selective permeability based on tailored polymer composition.
Section Diagram of the Concept
A rendering of the early concept.
Equations of First Principals derived for the system. These were later used to model system performance.
Section studies of heast and moisture flow using Computational Fluid Dynamics.
A bench scale experiement conducted in conjunction with the Department of Mechanical Engineering, University College London.
Experimental results showing good agreement with mathematical predictions.
Airflow through a series of shapes with sharp edges causes turbulent flow = not good for moisture permeation.
Smoother shapes create laminar flow, increaseing surface contact and moisture permeation through the membrane.
An elliptical membrane tube was developed as a component for a ventilated facade membrane exchanger. The work of clothing designer Issey Miyake was studed for ideas on how to pleat and tailor the membrane to increase exposed surface area.
The owners of the Hong Kong Shanghai Bank hold the views south to the harbor and north to the peaks in high esteem. Therefore, a hypothetical design was considered for the elevations of the conference room spaces at the east and west elevations of the building.
A compact "shell and tube" module was developed to plug into these areas at each floor level.
Before and after images of the Bank with the hypothetical curtainwall system.
