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PROPOSAL
background
CONSTRUCTION
METHODOLOGY
RESULTS

PROPOSAL

Background
Porous Materials can be used as not only physical filtration, but also as heat exchanger. I'm intended to test the performance of  heat-exchanging wall of different materials (foam, wood and concrete) with different sizes of holes. My experiments are based on Salmaan and Jonathan' s result, which proves that a water circuit guarantee direct thermal contact and prevent radiant discomfort. 
 
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Illustration 1: Building envelope with porous material optimized to exchange heat to the incoming air with minimal conduction losses. [1]
​

Research Questions

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Does the size of panels impact the efficiency of heat exchange? (diameter=1/8, 1/16, 1/32 inch)​
​

​Hypothesis

The smaller the size is, the fewer the energy is lost, in the meantime, larger size have a larger capacity on exchanging heat.

Digital Fabrication

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1 Water circuit- Rhino- 3D printer
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Foam board
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Wood board
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2 Foam/Wooden wall - AutoCAD - CNC
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Picture
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mold             
​
​pouring concrete
3 Concrete Wall:  Mix water and lime powder, pour the mixture into the  mold made by 3D printer.

Arduino

A written algorithm will control the temperature and flow rate of water with Arduino.
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Mockup

scale 1/2
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Sample of different sizes panels
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heating layer
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Top view
​        Interior------|-----------Exterior
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Sources:
[1] Salmaan Craigab, Jonathan Grinham, Breathing walls: The design of porous materials for heat exchange and decentralized ventilation, Harvard University
  • Projects
    • Environment Box
    • Passive Refrigeration
    • Water Cooling
    • Fog Catching
    • Roof Geometries
    • Optimal Insulation
    • Cooler Windcatcher
    • Green Machine
    • Mitigating Humidity
    • Convective Air Flow
    • Styrene Reuse
    • Thermal Reflection
    • ETFE Rigidification
    • Phase Change Materials
    • Polar Reflection
    • Cavity Depth Variation
    • Vapor Permeability
    • Algae Facade
    • Moisture Buffering
    • Engineered Geometries
    • Recycled Desiccant Materials
    • Living Wall
    • Solar Shading Facades
    • SHADESin.reACTION
    • Low-Fab Dehumidification
    • Breathing Wall
    • Urban Heat Island
    • Acoustical Design
    • Latent Heat of PCM's
    • Insulative Qualities of Air
  • About
  • Lectures
    • Building Science Basics I
    • Building Science Basics II
    • Research & Literature Review
    • Scales of Fabrication
    • Electronics
    • Methodology
    • Graphical Excellence
    • Moving Graphics
  • Assignments
    • 1: Research Proposal
    • 2: Prototype
    • 3: Data
    • 4: Design Proposal
    • Presentation & Paper
  • Workshops
    • Thermal Scavenger Hunt
    • Balance Point Game
    • Advanced Shop Training
    • Basic Electronics
    • Advanced Electronics
    • Excel & Illustrator
    • Data Visualization
    • Videos
    • Animations
  • Syllabus
  • Resources