Chris NeidlSeth SternbergDavid WilsonLing KongJP Hennessey
Published © CERN-OHL2

Epiphyte - Open Direct Air Capture

Epiphyte is a miniature, stand-alone, open source direct air capture machine that removes CO2 from the air, designed by OpenAir volunteers.

AdvancedWork in progressOver 1 day703
Epiphyte - Open Direct Air Capture

Things used in this project

Hardware components

Sorbent Panel Vertical Frame (1515-ULS) - 24 In.
×2
Sorbent Panel Horizontal Frame (1515-ULS) - 21 In.
×1
Sorbent Panel Vertical Sorbent Frame (1515-ULS) - 21 Inch
×2
Sorbent Panel Horizontal Sorbent Frame (1515 - ULS) - 8 In.
×2
Sorbent Panel T-Slot Cover. - 8 In.
×4
Sorbent Panel Offsets (1515 ULS) - 2.5 In.
×4
Sorbent Panel Frame L-Brackets (4302) - 1 In.
×12
Sorbent Panel Front/Back Plate L-Brackets (4302) - 1 In.
×16
Sorbent Panel L-Brackets -Off Sets (4302) - 1 In.
×8
Sorbent Panel Bolt Assemblies (T-Slot) (3320) - 1 In
×56
Sorbent Panel Bolts (Main Plate) 5/16-18 x 1"
×8
Sorbent Panel - Nuts (3759) - 1 In.
×24
Sorbent Panel - Bolt 5/16-18 x 2.25" (Sorbent Plate) (#3947) - 1 In.
×8
Sorbent Panel - Screen (#9230T752) - 3ft x 3ft
×1
Sorbent Panel - Aluminum Frame Plate (#2454) - 14" x 14" x .187"
×1
Sorbent Panel - Sheet Metal Top (#2453) - 24" x 24" x 0.125" https://8020.net/2453.html
×1
Sorbent Panel - Clevis Pins (#98306A169) - Pack of 25
×1
Sorbent - Molecular sieves, 13X, 1.6mm pellets (#334340) - 1kg
×2
Sorbent Chamber - Inline filter (#CFB-10) box for 10 inch ducts - 24in x 24in x 10in
×1
Sorbent Chamber - Inline fan for 10 inch duct (#AI-CLS10)
AC Infinity CLOUDLINE S10 inline fan. For 10 inch duct. Includes corded (20 foot) speed controller. 1201 CFM.
×1
Sorbent Chamber - Adjustable zone control damper (#ZO210) - 10 In.
Suncourt On/Off adjustable zone control damper. 10 inch round. NORMALLY OPEN. 24 VAC. Plug-in 120V to 24V transformer included.
×2
Sorbent Chamber - Round Duct Cap (#DC10) - 10 in.
×2
Housing & Controls - Uline Flat Shelf Utility Cart (H-3325BL) - 44 x 25 x 33"
×1
Housing & Controls - Electrical Enclosure - 1.5U 65 x 279 x 305 mm
×1
Electronics: Processor Adafruit ESP32 Feather V2 (STEMMA QT)
×1
Electronics: 5V USB Power Adapter: 5V 1A (1000mA) USB port power supply
×1
Electronics: USB Cable
×1
Electronics: Featherwing Tripler
×1
Electronics: Prototyping board
×1
Electronics: Feather Display
×1
Electonics: I2C Multiplexer
×2
Electronics: I2C Extender
×2
Sensors: CO2 Sensor: (Sensirion) SCD-30 - NDIR CO2 Temperature and Humidity Sensor (STEMMA QT)
×2
Sensors: Thermocouple
×4
Sensors: Thermocouple
×4
Sensors: Thermocouple Amplifier
×8
Sensors: Pressure Sensor
×4
Hook Up Wire Kit, 22 AWG
Hook Up Wire Kit, 22 AWG
×1
Sensors - Air Flow Sensor
×2
SPD Switch
×4
STEMMA QT Cable
×8
STEMMA QT Cable
×8
STEMMA QT Cable
×8
STEMMA QT Cable
×10
Power Supply
×2
Nichrome Wire
×1
Fiberglass sleeve for wire
×1
Sense resistor for current monitor
×6
Op-Amp for current monitor
×4
MOSFET P-Channel
×6
Screw terminal--Barrier Block
×10
Screw terminal--Wire to board
×6
Hook Up Wire, Red
×1
Hook Up Wire, Black
×1
Switched Power Cord
×2
Hook Up Wire, Red and Black
×1
Perfboard
×1
Standoffs Kit
×1

Software apps and online services

Arduino IDE
Arduino IDE

Hand tools and fabrication machines

Oscilloscope
Mastech MS8217 Autorange Digital Multimeter
Digilent Mastech MS8217 Autorange Digital Multimeter
Soldering iron (generic)
Soldering iron (generic)
Heat gun
Power strips
Drill / Driver, Cordless
Drill / Driver, Cordless
Laser cutter (generic)
Laser cutter (generic)

Story

Read more

Custom parts and enclosures

Sorbent Panel CAD

Schematics

Epiphyte Hello World_General Design Diagrams

This PDF includes a series of prototype diagrams outlining the different phases and functions of the Epiphyte V.1 unit.

Credits

Chris Neidl

Chris Neidl

3 projects • 6 followers
Seth Sternberg

Seth Sternberg

1 project • 3 followers
David Wilson

David Wilson

1 project • 5 followers
I worked in R&D as an electrical engineer at Bell Labs and then a number of startups, mainly in the fiber optic transmission field.
Ling Kong

Ling Kong

1 project • 3 followers
JP Hennessey

JP Hennessey

1 project • 3 followers
Thanks to David Wilson, Ling Kong, Seth Sternberg, Chuck Pierson, and JP Hennessey.

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