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[edit | edit source]
AEF food dehydrator
A solar dehydrator to help preserve surplus cropsAEF greywater
Greywater system at the CSA, Arcata Educational FarmAEF informational kiosk
An earthen informational kioskAEF photovoltaic system
Modified off-grid photovoltaic systemAEF solar water heater
Improved solar water heating systemAEF spiral herb garden
Restored the existing herb spiral
A-B[edit | edit source]
Air Ship Air City rooftop greywater filtration
A rooftop greywater filtration systemAleiha's parabolic solar cooker
Parabolic Solar CookerAmal's ethanol still
A valved reflux ethanol stillArcata Elementary rainwater catchment
A 3000 gallon rainwater catchement system for Arcata Elementary SchoolBackyard Biodigester
A biodigester converting organic waste to a fuel sourceBayside Park Farm living roof
garden roof to Bayside's new animal hutchBayside Park Farm rainwater catchment system
catchment system that collects and stores rainwater for gardening purposesBayside Park Farm vermicomposting
vermicomposting for bayside farm to make own compostBike Rodeo bicycle blender
A kid's bike blender for Rio Dell Community Resource CenterBike trailer
A bike trailer from a converted baby strollerBlue ox earthen oven
Blue Ox earthen ovenBottoms strawbale earthen plaster
Earthen plaster and natural paint recipes
CCAT[edit | edit source]
CCAT bike blender 2015
Bike that supplies mechanical power to blenderCCAT bike powered tools
Bike that supplies electricity for power toolsCCAT Clay-straw slip wall
Clay-straw slip wall of CCAT's GreenshedCCAT clothes drying
Efficient clothes drying system for CCATCCAT Cold Box
An energy efficient solution to a refrigeratorCCAT Compost System
CCAT's comprehensive composting systemCCAT DIY solar suitcase
A do-it-yourself solar suitcase from CCATCCAT earthbag garden terrace
An earthbag terrace at CCATCCAT greenhouse natural wall
An aesthetically pleasing natural earthen wall built by clay and straw slip methodsCCAT greenhouse rainwater catchment
Greenhouse Rainwater Catchment System at CCATCCAT greenshed cob wall
Cob wall of CCAT's GreenshedCCAT greenshed north wall
Cordwood and mortar wall of CCAT's GreenshedCCAT greenshed solar lighting 2015
CCAT lighting improvement to greenshedCCAT greenshed west wall
Clay-straw slip wall of CCAT's GreenshedCCAT greywater 2017
Greywater pump at CCATCCAT greywater marsh (2008)
CCAT's Greywater Marsh 2008CCAT greywater marsh (current)
CCAT Greywater Marsh ContinuedCCAT interpretive wind turbine display
Demonstration wind turbineCCAT's living roof
Replacing CCAT's living roofCCAT MEOW 2012
Refurbishment of CCAT's Mobile Energy Operation WagonCCAT MEOW 2015
Refurbishment of CCAT's Batteries for Mobile Energy systemCCAT MEOW 2019
Pedal bike used for Pedaling for power"CCAT natural concrete stain
Natural concrete stainCCAT natural paints 2017
Mural at CCAT using natural paintsCCAT natural paint project
Interior paints from natural ingredientsCCAT natural wall construction
Earthen informational kiosk for CCATCCAT outdoor solar heated wash station
A Passive Solar Heated Wash Station at CCATCCAT pedal powered grain mill
Pedal powered grain mill for CCATCCAT pedal powered TV
Updated version of CCAT pedal powered bicycleCCAT rainwater catchment system
CCAT's current rainwater catchment systemCCAT rainwater catchment system
Rainwater Catchment System at CCATCCAT Raised Garden Beds
Controlled beds of soil above toxic groundCCAT remediation zone
A stable slope for planting and attracting beneficial insectsCCAT Retaining Wall
Retaining wall for slope erosion at CCATCCAT rocket mass cobb bench heater
A Rocket Mass Cobb Bench HeaterCCAT rocket stove
CCAT's improved fuel rocket stoveCCAT Small Pond Revitalization
A small pond with a solar aerator at CCATCCAT small rainwater catchment
A Small Rainwater Catchment System at CCATCCAT small rainwater catchment
Rainwater catchment for CCAT's cob bench roof- CCAT solar stereo system.jpg
CCAT solar stereo system
A portable solar stereo system at CCAT CCAT southside rainwater catchment
A rainwater catchment system for the southside of CCATCCAT's Vermicomposting Bin
CCAT's vermicomposting binCCAT vertical garden
CCAT's Vertical Garden integration for sustainable plant growingCCAT yurt roof 2019
A Yurt Roof at CCAT
C-F[edit | edit source]
Chris's ENGR305 Solar Food Dehydrator
A hybrid, solar food dehydratorCompressed earth brick press
An exploration of compressed earth bricksCooperation Humboldt potato tower
A Vertical Garden Used For Growing PotatoesDeidre's vertical vegetable garden
Solar powered vertical vegetable gardenDevan's vertical axis wind turbine
Experimental Vertical Axis Wind TurbineEmily small aquaponic system
micro-aquaponic system to grow personal vegetables/fruitEngr305 peanut sheller project
Peanut sheller made from clay and newspaperEngr305 pulser pump
A Labeled Pulser PumpEngr305 pulser pump
A working model of a Pulser pumpEngr 305 solar learning station
Instructional Solar Learning StationENGR305 windbelt
Testing new materials for prototype windbeltsEthanol from organic sugar beets versus refined cane sugar
Determining the cost inputs and energy outputs of small scale ethanol production
G-O[edit | edit source]
HCOE bike power classroom
A Bike Powered BlenderHBCSL cobb oven
A cobb oven for the Humboldt Bay Center for Sustainable LivingHBCSL solar shower
A solar shower for the Humboldt Bay Center for Sustainable LivingHSU solar suitcase
A Solar SuitcaseJefferson Community Center compost
A large composting system for Jefferson SchoolJefferson Community Center E305 teach-in
A vermicomposting workshopJefferson Community Center edible landscape
Garden Beds in the Edible LandscapeJefferson Community Center native landscaping 2017
Native Landscaping at the Jefferson Community CenterKiva's straw bale greenhouse
A straw-bale greenhouseLoleta Elementary rainwater
Rainwater Catchment System at Loleta ElementaryM Street Eureka rainwater catchment
A rainwater catchment system for residential propertyMattole Community Center rainwater catchment
A rainwater catchment from the roof of the Mattole Valley Community Center in PetroliaMillcreek greywater
A residential greywater processorOld Growth Cellar rainwater catchment
A rainwater catchment system for Old Growth Cellars
P-S[edit | edit source]
Papasan Chair Solar Cooker
A solar cooker and chair when not in useParabolic basket and tin can solar cooker
Solar cooker out of local invasive species and waste materialsPlastering CCAT Earthbag Terrace
A sturdy, natural plaster covering to the EarthBag gardening terrace being built in front of CCATRocket stove biomass charcoal
Use of biomass waste charcoal briquettes for rocket stoveRowan's portable pedal power generator
A pedal power generatorSALIRAJA Yurt Project
A Yurt Roof Composed of Old CansSmall greenhouse rainwater catchment
A rainwater catchment system for a greenhouseSolar Charged Lawnmower
An electric lawnmower that utilizes solar power as an energy sourceSolar heating box
A passive solar heating boxStanley and Kristi's eco-friendly carboard furniture
Furniture made from cardboardSunbrella
An umbrella in the rain, a solar cooker in the SunSunny Brae Middle School Garden
A garden at Sunny Brae Middle SchoolSunny Brae rainwater catchment system
A residential rainwater catchment system
T-Z[edit | edit source]
Treadmill-a-volt treadmill powered charging
Treadmill power for the Humboldt Bay Center for Sustainable LivingTroubleshooting the AEF photovoltaic system
Troubleshooting, repairing, testing and maintaining a preexisting off-grid photovoltaic systemTule Fog Farm Grassfed Shed
An indoor space for pigs and goats that also restores a previous brownfield while improving the overall natural landscapeUmbrella solar cooker
A multi-use solar cookerWild Chick Farm
A commercial pastured chicken operation in Arcata, California