Below are service learning projects from Engr305 Appropriate Technology, which is a course on appropriate technology at Cal Poly Humboldt taught by instructor Lonny Grafman.
AEF
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AEF food dehydrator
A solar dehydrator to help preserve surplus crops -
AEF greywater
Greywater system at the CSA, Arcata Educational Farm -
AEF informational kiosk
An earthen informational kiosk -
AEF photovoltaic system
Modified off-grid photovoltaic system -
AEF solar water heater
Improved solar water heating system -
AEF spiral herb garden
Restored the existing herb spiral
A-B
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Air Ship Air City rooftop greywater filtration
A rooftop greywater filtration system -
Aleiha's parabolic solar cooker
Parabolic Solar Cooker -
Amal's ethanol still
A valved reflux ethanol still -
Arcata Elementary rainwater catchment
A 3000 gallon rainwater catchement system for Arcata Elementary School -
Backyard Biodigester
A biodigester converting organic waste to a fuel source -
Bayside Park Farm living roof
garden roof to Bayside's new animal hutch -
Bayside Park Farm rainwater catchment system
catchment system that collects and stores rainwater for gardening purposes -
Bayside Park Farm vermicomposting
vermicomposting for bayside farm to make own compost -
Bike Rodeo bicycle blender
A kid's bike blender for Rio Dell Community Resource Center -
Bike trailer
A bike trailer from a converted baby stroller -
Blue ox earthen oven
Blue Ox earthen oven -
Bottoms strawbale earthen plaster
Earthen plaster and natural paint recipes
CCAT
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CCAT bike blender 2015
Bike that supplies mechanical power to blender -
CCAT bike powered tools
Bike that supplies electricity for power tools -
CCAT Clay-straw slip wall
Clay-straw slip wall of CCAT's Greenshed -
CCAT clothes drying
Efficient clothes drying system for CCAT -
CCAT Cold Box
An energy efficient solution to a refrigerator -
CCAT Compost System
CCAT's comprehensive composting system -
CCAT DIY solar suitcase
A do-it-yourself solar suitcase from CCAT -
CCAT earthbag garden terrace
An earthbag terrace at CCAT -
CCAT greenhouse natural wall
An aesthetically pleasing natural earthen wall built by clay and straw slip methods -
CCAT greenhouse rainwater catchment
Greenhouse Rainwater Catchment System at CCAT -
CCAT greenshed cob wall
Cob wall of CCAT's Greenshed -
CCAT greenshed north wall
Cordwood and mortar wall of CCAT's Greenshed -
CCAT greenshed solar lighting 2015
CCAT lighting improvement to greenshed -
CCAT greenshed west wall
Clay-straw slip wall of CCAT's Greenshed -
CCAT greywater 2017
Greywater pump at CCAT -
CCAT greywater marsh (2008)
CCAT's Greywater Marsh 2008 -
CCAT greywater marsh (current)
CCAT Greywater Marsh Continued -
CCAT interpretive wind turbine display
Demonstration wind turbine -
CCAT's living roof
Replacing CCAT's living roof -
CCAT MEOW 2012
Refurbishment of CCAT's Mobile Energy Operation Wagon -
CCAT MEOW 2015
Refurbishment of CCAT's Batteries for Mobile Energy system -
CCAT MEOW 2019
Pedal bike used for Pedaling for power" -
CCAT natural concrete stain
Natural concrete stain -
CCAT natural paints 2017
Mural at CCAT using natural paints -
CCAT natural paint project
Interior paints from natural ingredients -
CCAT natural wall construction
Earthen informational kiosk for CCAT -
CCAT outdoor solar heated wash station
A Passive Solar Heated Wash Station at CCAT -
CCAT pedal powered grain mill
Pedal powered grain mill for CCAT -
CCAT pedal powered TV
Updated version of CCAT pedal powered bicycle -
CCAT rainwater catchment system
CCAT's current rainwater catchment system -
CCAT rainwater catchment system
Rainwater Catchment System at CCAT -
CCAT Raised Garden Beds
Controlled beds of soil above toxic ground -
CCAT remediation zone
A stable slope for planting and attracting beneficial insects -
CCAT Retaining Wall
Retaining wall for slope erosion at CCAT -
CCAT rocket mass cobb bench heater
A Rocket Mass Cobb Bench Heater -
CCAT rocket stove
CCAT's improved fuel rocket stove -
CCAT Small Pond Revitalization
A small pond with a solar aerator at CCAT -
CCAT small rainwater catchment
A Small Rainwater Catchment System at CCAT -
CCAT small rainwater catchment
Rainwater catchment for CCAT's cob bench roof -
CCAT solar stereo system
A portable solar stereo system at CCAT -
CCAT southside rainwater catchment
A rainwater catchment system for the southside of CCAT -
CCAT's Vermicomposting Bin
CCAT's vermicomposting bin -
CCAT vertical garden
CCAT's Vertical Garden integration for sustainable plant growing -
CCAT yurt roof 2019
A Yurt Roof at CCAT
C-F
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Chris's ENGR305 Solar Food Dehydrator
A hybrid, solar food dehydrator -
Compressed earth brick press
An exploration of compressed earth bricks -
Cooperation Humboldt potato tower
A Vertical Garden Used For Growing Potatoes -
Deidre's vertical vegetable garden
Solar powered vertical vegetable garden -
Devan's vertical axis wind turbine
Experimental Vertical Axis Wind Turbine -
Emily small aquaponic system
micro-aquaponic system to grow personal vegetables/fruit -
Engr305 peanut sheller project
Peanut sheller made from clay and newspaper -
Engr305 pulser pump
A Labeled Pulser Pump -
Engr305 pulser pump
A working model of a Pulser pump -
Engr 305 solar learning station
Instructional Solar Learning Station -
ENGR305 windbelt
Testing new materials for prototype windbelts -
Ethanol from organic sugar beets versus refined cane sugar
Determining the cost inputs and energy outputs of small scale ethanol production
G-O
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HCOE bike power classroom
A Bike Powered Blender -
HBCSL cobb oven
A cobb oven for the Humboldt Bay Center for Sustainable Living -
HBCSL solar shower
A solar shower for the Humboldt Bay Center for Sustainable Living -
HSU solar suitcase
A Solar Suitcase -
Jefferson Community Center compost
A large composting system for Jefferson School -
Jefferson Community Center E305 teach-in
A vermicomposting workshop -
Jefferson Community Center edible landscape
Garden Beds in the Edible Landscape -
Jefferson Community Center native landscaping 2017
Native Landscaping at the Jefferson Community Center -
Kiva's straw bale greenhouse
A straw-bale greenhouse -
Loleta Elementary rainwater
Rainwater Catchment System at Loleta Elementary -
M Street Eureka rainwater catchment
A rainwater catchment system for residential property -
Mattole Community Center rainwater catchment
A rainwater catchment from the roof of the Mattole Valley Community Center in Petrolia -
Millcreek greywater
A residential greywater processor -
Old Growth Cellar rainwater catchment
A rainwater catchment system for Old Growth Cellars
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P-S
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Papasan Chair Solar Cooker
A solar cooker and chair when not in use -
Parabolic basket and tin can solar cooker
Solar cooker out of local invasive species and waste materials -
Plastering CCAT Earthbag Terrace
A sturdy, natural plaster covering to the EarthBag gardening terrace being built in front of CCAT -
Rocket stove biomass charcoal
Use of biomass waste charcoal briquettes for rocket stove -
Rowan's portable pedal power generator
A pedal power generator -
SALIRAJA Yurt Project
A Yurt Roof Composed of Old Cans -
Small greenhouse rainwater catchment
A rainwater catchment system for a greenhouse -
Solar Charged Lawnmower
An electric lawnmower that utilizes solar power as an energy source -
Solar heating box
A passive solar heating box -
Stanley and Kristi's eco-friendly carboard furniture
Furniture made from cardboard -
Sunbrella
An umbrella in the rain, a solar cooker in the Sun -
Sunny Brae Middle School Garden
A garden at Sunny Brae Middle School -
Sunny Brae rainwater catchment system
A residential rainwater catchment system
T-Z
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Treadmill-a-volt treadmill powered charging
Treadmill power for the Humboldt Bay Center for Sustainable Living -
Troubleshooting the AEF photovoltaic system
Troubleshooting, repairing, testing and maintaining a preexisting off-grid photovoltaic system -
Tule Fog Farm Grassfed Shed
An indoor space for pigs and goats that also restores a previous brownfield while improving the overall natural landscape -
Umbrella solar cooker
A multi-use solar cooker -
Wild Chick Farm
A commercial pastured chicken operation in Arcata, California
